Patent Application
20250018756
The present invention relates to an arrangement for facilitating amphibious operation of a tracked vehicle. The present invention relates to a tracked vehicle with such an arrangement.
Tracked vehicles comprising articulated tracked vehicle are in certain cases amphibious and can swim. Characteristics for swimming with articulated vehicles of today is that they swim with own displacement. They thus run deep in the water and the speed in water becomes low due to the vehicle being short. In addition, propulsion, i.e. swimming operation, with the tracks as drive source has poor efficiency.
There is thus a need to present improvements in arrangements for amphibious tracked vehicles.
An object of the present invention is to provide an arrangement for facilitating amphibious operation of a tracked vehicle, which facilitates improved swimming operation by means of the tracks of the amphibious tracked vehicle.
A further object of the present invention is to provide a tracked vehicle comprising such an arrangement.
These and other objects, which will become apparent from the following description, are achieved by an arrangement for facilitating amphibious operation of a tracked vehicle, and a tracked vehicle as set out in the appended independent claims. Preferred embodiments of the arrangement are defined in the appended dependent claims.
Specifically, an object of the invention is achieved by an arrangement for facilitating amphibious operation of a tracked vehicle. Said tracked vehicle comprises one or more vehicle bodies and at least one track assembly pair per vehicle body, said track assembly pair being connected to the vehicle body. The track assembly pair comprises two track assemblies for driving the vehicle, each track assembly comprising a drive means driven endless track arranged to run over a set of wheels of the track assembly and, in connection to amphibious operation, being configured to operate under the water surface by rotating in the water providing a flow of water so as to provide a swimming operation of the vehicle. The arrangement comprises a gas provision device configured to, in connection to swimming operation, introduce a gaseous medium into the flow of water at the upper side of the track of the respective track assembly so as to reduce the amount of water in connection to said upper side.
According to an aspect of the present disclosure, said gas provision device is configured to introduce a gaseous medium into the flow of water at the upper side of the track of the respective track assembly so as to reduce the amount of water in connection to said upper side so that a propulsion reducing force associated with said flow of water at said upper side is reduced.
By thus introducing a gaseous medium into the flow of water at the upper side of the track of the respective track assembly, the total density of the mass providing said propulsion reducing force is reduced so that the propulsion of the vehicle is improved in that the resulting overall forward force on the vehicle, created by rotation of the tracks of the track assemblies, is increased. By thus introducing a gaseous medium into the flow of water at the upper side of the track of the respective track assembly an easy and efficient way of reducing the amount of water in connection to said upper side for facilitating swimming operation the tracked is provided.
According to an aspect of the present disclosure, the arrangement for facilitating amphibious operation of a tracked vehicle is an arrangement at a tracked vehicle. According to an aspect of the present disclosure the arrangement for facilitating amphibious operation of a tracked vehicle is an arrangement of a tracked vehicle. According to an aspect of the present disclosure the arrangement for facilitating amphibious operation of a tracked vehicle is configured to be comprised in said tracked vehicle.
According to an embodiment of the arrangement, said gas provision device is configured to provide pressurized introduction of said gaseous medium such that pressurized gaseous medium is introduced into said flow of water in connection to a space over said upper side so that water in said space is reduced such that the density of the mass associated with said flow of water providing a propulsion reducing force associated with said flow of water at said upper side is reduced. By thus introducing pressurized gaseous medium into said space, reduction of the density of the mass associated with said flow of water is facilitated. According to an aspect of the present disclosure, said gas provision device may be operated in any suitable way by means of any suitable operation unit, such as a mechanical operation unit and/or an electric operation unit, e.g. electric machine/electric motor, a combustion engine, e.g. a combustion engine configured to drive the tracked vehicle.
According to an embodiment of the arrangement, said drive means configured to drive said endless track comprises a combustion engine, wherein said gas provision device is configured to utilize exhaust gas from said combustion engine for said introduction of gaseous medium into said flow of water at said upper side of said endless track. By thus utilizing exhaust gas from said combustion engine for said introduction of gaseous medium into said flow of water, efficient reduction of the density of the mass associated with said flow of water is facilitated. By thus utilizing exhaust gas from said combustion engine for said introduction of gaseous medium into said flow of water, an energy efficient arrangement may be provided in that gas exhausted during drive of the amphibious tracked vehicle is utilized. According to an aspect of the present disclosure, said gas provision device is comprised in said combustion engine. According to an aspect of the present disclosure, said combustion engine comprises said gas provision device. According to an aspect of the present disclosure, said gas provision device is configured to control said introduction of gaseous medium into the flow of water at the upper side of said endless track by means of said combustion engine. According to an aspect of the present disclosure, said gas provision device is configured to control said introduction of gaseous medium into the flow of water at the upper side of said endless track by means of said combustion engine based on rotational speed of said endless track provided by means of operation of said combustion engine. According to an aspect of the present disclosure, exhaust gas from said combustion engine is utilized for said introduction of gaseous medium into said flow of water based on rotational speed of said endless track in such a way that higher rotational speed provided by operation of said combustion engine results in higher amount of exhaust gas introduced into said flow of water relative to a lower rotational speed, lower than said higher, provided by said combustion engine. According to an aspect of the present disclosure, said combustion engine, in connection to an amphibious operation, is configured to act as said gas provision device so that introduction of said gaseous medium into said flow of water automatically is based on the rotational speed of said endless track, said rotational speed being provided by said combustion engine. According to an aspect of the present disclosure, said gas provision device may be configured to utilize exhaust gas from said combustion engine for said introduction of gaseous medium into said flow of water at said upper side of said endless track alone or in combination with introduction of other gaseous medium than said exhaust gas.
According to an embodiment of the arrangement, said gas provision device comprises a pump device and/or a compressor device configured to provide said introduction of gaseous medium into said flow of water at said upper side of said endless track. By thus utilizing a pump device and/or a compressor device for providing said introduction of gaseous medium into said flow of water, efficient reduction of the density of the mass associated with said flow of water is facilitated. By thus utilizing a pump device and/or a compressor device for providing said introduction of gaseous medium into said flow of water, control of said introduction of gaseous medium into said flow of water may be facilitated. Said pump device may comprise one or more pumps. Said compressor device may comprise one or more compressors.
According to an aspect of the present disclosure, said drive means is configured to operate said gas provision device. According to an aspect of the present disclosure, said gas provision device comprises said drive means, wherein said drive means is configured to operate one or more gas provision units for providing said introduction of gaseous medium into said flow of water. According to an aspect of the present disclosure, when said drive means configured to drive said endless track comprises a combustion engine, said combustion engine is configured to operate said gas provision device. According to an aspect of the present disclosure, when said drive means configured to drive said endless track comprises a combustion engine, said combustion engine is configured to operate a pump device and/or a compressor device of said gas provision device. According to an aspect of the present disclosure, when said drive means configured to drive said endless track comprises a combustion engine, said pump device is configured to provide said introduction of gaseous medium by means of said combustion engine providing its exhaust gas as the stand-alone pump device or as a support to a combination of different type of pump devices providing said introduction of gas medium.
According to an embodiment of the arrangement, said gaseous medium comprises air, wherein said gas provision device is configured to retain air stored within said vehicle and/or externally from an outer side portion of said vehicle configured to be above water during swimming operation of said vehicle. By thus retaining and utilizing air as at least part of the gaseous medium introduced into said space, efficient reduction of the density of the mass associated with said flow of water is facilitated in that the required amount of gaseous medium may be efficiently controlled.
According to an embodiment of the arrangement, said gas provision device is configured to control said introduction of gaseous medium into the flow of water at the upper side of said endless track based on rotational speed of said endless track. Hereby efficient control of said introduction of gaseous medium into the flow of water may be facilitated. Hereby energy efficient swimming operation of the tracked vehicle is facilitated. According to an aspect of the present disclosure, said gas provision device is configured to control said introduction of gaseous medium into the flow of water at the upper side of said endless track based on rotational speed of said endless track such that a higher amount of gaseous medium is introduced into said flow of water at a higher rotational speed than at a lower rotational speed, relatively lower than said higher rotational speed. According to an aspect of the present disclosure, said control, by means of said gas provision device, of said introduction of gaseous medium into the flow of water at the upper side of said endless track based on rotational speed of said endless track comprises controlling said introduction of gaseous medium into said flow of water based on direction of said rotational speed. According to an aspect of the present disclosure, said gas provision device is configured to control said introduction of gaseous medium into the flow of water at the upper side of said endless track based on direction of rotational speed of said endless track such that said introduction of gaseous medium into the flow of water is provided from the rear side of the tracked vehicle during a rotation of said endless track for forward drive of the tracked vehicle, and such that said introduction of gaseous medium into the flow of water is provided from the front side of the tracked vehicle during a rotation of said endless track for rearward drive of the tracked vehicle.
According to an embodiment of the arrangement, said gas provision device is configured to provide introduction of gaseous medium into the flow of water at the upper side of said endless track via one or more introduction openings in connection to said upper side. Hereby efficient introduction of gaseous medium into the flow of water for efficient reduction of the density of the mass associated with said flow of water may be facilitated.
According to an embodiment of the arrangement, said gas provision device is configured to provide introduction of gaseous medium into the flow of water at the upper side of said endless track from the rear side of the vehicle in connection to said upper side, said introduction of gaseous medium from said rear side being directed in the direction of the flow of water. Hereby efficient introduction of gaseous medium into the flow of water for efficient reduction of the density of the mass associated with said flow of water may be facilitated.
According to an embodiment, the arrangement further comprises a space provision arrangement configured to provide a space in connection to the upper side of the track of the respective track assembly so as to facilitate retention of the gaseous medium introduced by means of said gas provision device and thereby the reduction of the amount of water within said space. By thus providing such a space provision arrangement facilitating retention of the introduced gaseous medium, reduction of the amount of water within said space is efficiently facilitated.
According to an embodiment of the arrangement, said space provision arrangement comprises under structure portions of said vehicle body, each under structure portion being arranged to run over an upper side of a track of a track assembly at a distance from the upper side of the track so that said space, is provided between each under structure portion and the upper side of the track of the corresponding track assembly. By thus providing such a space provision arrangement, retention of the introduced gaseous medium is facilitated, thus further facilitating reduction of the amount of water within said space is efficiently facilitated.
According to an embodiment of the arrangement, said space provision arrangement comprises an enclosure configuration arranged so as to at least partly provide enclosure of said space. Said enclosure configuration may be arranged in connection to, e.g. connected to, said vehicle body or be integrated portions of said vehicle body. By thus providing such a space provision arrangement with an enclosure configuration, retention of the introduced gaseous medium is facilitated, thus further facilitating reduction of the amount of water within said space is efficiently facilitated.
According to an embodiment of the arrangement, said enclosure configuration comprises elongated side elements arranged at and configured to run along a respective side of the vehicle so as to provide enclosure of said space for further facilitating retention of gaseous medium introduced into said space. Said elongated side elements may be arranged in connection to, e.g. connected to, said vehicle body or be integrated portions of said vehicle body. By thus providing such a space provision arrangement with an enclosure configuration, retention of the introduced gaseous medium is facilitated, thus further facilitating reduction of the amount of water within said space is efficiently facilitated.
According to an embodiment of the arrangement, said enclosure configuration comprises front elements arranged at a front portion of the and/or rear elements arranged at a rear portion of the vehicle so as to provide further enclosure of said space for further facilitating retention of gaseous medium introduced into said space. Said front elements and/or rear elements may be arranged in connection to, e.g. connected to, said vehicle body, or be integrated portions of said vehicle body. By thus providing such a space provision arrangement with an enclosure configuration, retention of the introduced gaseous medium is facilitated, thus further facilitating reduction of the amount of water within said space is efficiently facilitated.
Specifically, an object of the invention is achieved by a tracked vehicle comprising an arrangement as set out herein.
According to an embodiment, said tracked vehicle is an articulated tracked vehicle comprising a first vehicle unit and a second vehicle unit pivotably connected to the first vehicle unit via an articulation joint, each of said vehicle units comprising a vehicle body and track assembly pair suspendedly connected to respective vehicle body.
For a better understanding of the present disclosure reference is made to the following detailed description when read in conjunction with the accompanying drawings, wherein like reference characters refer to like parts throughout the several views, and in which:
Herein the term “amphibious operation” refers to any situation when the amphibious tracked vehicle is being operated in water, comprising swimming operation.
Herein the term “land operation” refers to any situation when the amphibious tracked vehicle is on land and not being in connection to an amphibious operation. The term “land operation” refers to the amphibious tracked vehicle being on the ground and driving on the ground or being prepared for driving on the ground.
Herein the term “swimming operation” refers to any situation when the amphibious tracked vehicle is being propelled in water by means of rotation of the tracks of the track assemblies of the tracked vehicle.
Herein the term “upper side of the track of track assembly” refers to the side of the portion of the track facing upwards and the term “underside of the track of a track assembly” refers to the opposite side, i.e. the side of the portion of the track facing downwards. During land operation the term “underside of the track of a track assembly” refers to the side facing the ground and engaging with the ground. During drive of the vehicle by means of the tracks of the track assembly, i.e. during rotation of the tracks of the track assembly, the upper side and lower side of the track changes based on the rotation of the track. The tracked vehicle has a longitudinal extension ending with a front side and an opposite rear side. The tracked vehicle further has a transversal extension with track assemblies on the respective side. According to an aspect, the side of the portion of the track facing upwards is facing upwardly in a direction essentially orthogonal to the longitudinal and transversal extension of the tracked vehicle, when the vehicle is in an essentially horizontal position.
The tracked vehicle according to the present disclosure may be any tracked vehicle suitable for amphibious operation. The tracked vehicle according to the present disclosure may thus be any suitable amphibious tracked vehicle having left and right track assemblies wherein under structure portions are running over, and at a certain distance from, the upper side of the of the track of the respective track assembly. The tracked vehicle according to the present disclosure may be a single tracked vehicle. The tracked vehicle according to the present disclosure may be an articulated tracked vehicle comprising a first vehicle unit and a second vehicle unit pivotably connected to the first vehicle unit via an articulation joint. The tracked vehicle according to the present disclosure may be operated by any suitable drive means such as an internal combustion engine and or/or an electric motor. One or more tracks of the track assemblies of the tracked vehicle may be rotated during swimming operation.
The tracked vehicle VIP comprises a track assembly pair. The track assembly pair comprises opposite track assemblies for driving the vehicle, a left track assembly TIP, shown in
The tracked vehicle VIP comprises a vehicle body 10P. The track assembly pair is suspendedly connected to the vehicle body 10P.
Each track assembly comprises an endless track 4P arranged to run over a set of wheels of the track assembly TIP.
The vehicle body 10P comprises under structure portions, a left under structure portion 12P, shown in
During swimming operation by means of rotating the tracks of the respective track assembly, water will be transported around the tracks 4P as illustrated in
The tracked vehicle V1 comprises a track assembly pair T1, T2 as seen in
The tracked vehicle V1 comprises a vehicle body 10. The track assembly pair T1, T2 is suspendedly connected to the vehicle body 10.
The respective track assembly, in
The respective track assembly, in
The endless track 4 is a propulsion track 4 running around said wheels 1, 2, 3 for driving the vehicle V1. The endless track 4 has an inner side 4i with an inner surface which at least partly is in contact with the wheels 1, 2, 3 when the endless track is running around the wheels 1, 2, 3. The endless track 4 has an outer side 40 with an outer surface which, during swimming operation, will be in contact with water and move the water when the endless track is running around the wheels 1, 2, 3. When the endless track is running around the wheels 1, 2, 3 a portion of the outer side 40 will be faced upwardly and thus be an upper side 4a and an opposite portion of the outer side will face downwardly and thus be an underside 4b. Said track 4 has an external side portion 4e facing outwardly in a direction parallel to the axial direction of the wheels of the vehicle V1 and thus in the transversal direction of the vehicle away from the vehicle, and an opposite internal side portion 4i facing in the opposite direction, i.e. facing inwardly in a direction parallel to the axial direction of the wheels of the vehicle V1 and thus in the transversal direction of the vehicle towards the opposite track assembly of the track assembly pair of the vehicle V1.
The drive wheel 1 is configured to be operated by any suitable drive means D such as an internal combustion engine and or/or an electric motor. The drive means D is schematically illustrated in
Further the vehicle V1 comprises a vehicle body 10. According to an aspect of the present disclosure, the vehicle body 10 includes the chassis of the vehicle V1. According to an aspect of the present disclosure, the vehicle body 10 may include the bodywork.
The vehicle body 10 comprises under structure portions 12, see
As shown in
As shown in
As shown in
As shown in
The transversal extension of the left wall portion 17 essentially corresponds to the transversal extension of the outer side of the left track assembly T1. The lower portion of the left wall portion 17 is arranged in connection to the left under structure portion 12.
As shown in
The transversal extension of the right wall portion 18 essentially corresponds to the transversal extension of the outer side of the right track assembly T1. The lower portion of the right wall portion 18 is arranged in connection to the right under structure portion 12.
Thus, the width of the vehicle body 10 essentially corresponds to the width of the track assembly pair T1, T2. Hereby the under structure portions 12 run over the respective track assembly T1, T2.
The tracked vehicle V1 comprises according to an aspect of the present disclosure a suspension system. The suspension system may be any suitable suspension system. The suspension system comprises according to an aspect of the present disclosure a suspension device for the respective track assembly. The respective track assembly of the tracked vehicle V1 is thus arranged to be supported by the vehicle body 10 by means of said suspension device. The road wheels 3 of the respective track assembly of the tracked vehicle V1 is according to an aspect of the present disclosure arranged to be supported by the vehicle body 10 by means of said suspension device.
Said track assemblies T1, T2 may be suspendedly arranged to said vehicle body 10 via said road wheels 3 by means of the suspension system.
The amphibious tracked vehicle V1 comprises an arrangement A for facilitating swimming operation of the tracked vehicle.
The arrangement A comprises a gas provision device 100 configured to, in connection to swimming operation, introduce a gaseous medium G into the flow of water at the upper side 4a of the track 4 of the respective track assembly T1, T2 so as to reduce the amount of water in connection to said upper side.
According to an aspect of the present disclosure, said gas provision device 100 is configured to introduce a gaseous G medium into the flow of water at the upper side 4a of the track of the respective track assembly so as to reduce the amount of water in connection to said upper side 4a so that a propulsion reducing force associated with said flow of water at said upper side 4a is reduced.
Said gas provision device 100 is configured to provide pressurized introduction of said gaseous medium G such that pressurized gaseous medium G is introduced into said flow of water in connection to a space S1 over said upper side 4a so that water in said space is reduced such that the density of the mass associated with said flow of water providing said propulsion reducing force is reduced.
According to an aspect of the present disclosure, said gas provision device 100 comprises a pump device 110. Said pump device may comprise one or more pumps.
According to an aspect of the present disclosure, said gas provision device 100 comprises a compressor device 120 configured to provide said introduction of gaseous medium G into said flow of water at said upper side 4a of said endless track 4. Said compressor device 120 may comprise one or more compressors.
According to an aspect of the present disclosure, said drive means D is configured to operate said gas provision device 100. According to an aspect of the present disclosure, said drive means D is configured to operate said gas provision device 100 for providing said introduction of gaseous medium into said space S1 with said flow of water at said upper side 4a of said endless track 4.
According to an aspect of the present disclosure, said gas provision device 100 comprises said drive means D. According to an aspect of the present disclosure, said gas provision device 100 is configured to operate one or more gas provision units by means of said drive means D for providing said introduction of gaseous medium into said space S1 with said flow of water at said upper side 4a of said endless track 4. Said one or more gas provision units may comprise said pump device 110 and/or said compressor device 120.
According to an aspect of the present disclosure, said arrangement A for facilitating amphibious operation comprises said drive means D.
According to an aspect of the present disclosure, when said drive means D configured to drive said endless track comprises a combustion engine, said combustion engine is configured to operate said gas provision device 100. According to an aspect of the present disclosure, when said combustion engine is configured to operate said gas provision device 100, said combustion engine is configured to operate a pump device 110 and/or a compressor device 120 of said gas provision device 100.
According to an aspect of the present disclosure, when said drive means D configured to drive said endless track comprises one or more electric motors, one or more of said one or more electric motors are configured to operate said gas provision device 100. According to an aspect of the present disclosure, when said one or more electric motors are configured to operate said gas provision device 100, said one or more electric motors are configured to operate a pump device 110 and/or a compressor device 120 of said gas provision device 100.
According to an aspect of the present disclosure, when said drive means D configured to drive said endless track comprises a combustion engine and one or more electric motors, said combustion engine and/or one or more of said one or more electric motors are configured to operate said gas provision device 100, e.g. a pump device 110 and/or a compressor device 120 of said gas provision device 100.
According to an aspect of the present disclosure, said drive means D is configured to operate a pump device 110 and/or a compressor device 120 of said gas provision device 100.
According to an aspect of the present disclosure, when said drive means D configured to drive said endless track 4 comprises a combustion engine, said pump device 110 is configured to provide said introduction of gaseous medium by means of said combustion engine providing its exhaust gas as the stand-alone pump device 110 or as a support to a combination of different type of pump devices providing said introduction of gaseous medium G into said space S1.
According to an aspect of the present disclosure, when said drive means D configured to drive said endless track 4 comprises a combustion engine, said gas provision device 100 is configured to utilize exhaust gas from said combustion engine for said introduction of gaseous medium into said space S1 with said flow of water at said upper side 4 of said endless track 4.
According to an aspect of the present disclosure, said gas provision device 100 is configured to provide introduction of exhaust gas into said space S1 with said flow of water at said upper side 4 of said endless track 4 so as to facilitate efficient reduction of the density of the mass associated with said flow of water.
By thus utilizing exhaust gas from said combustion engine for said introduction of gaseous medium G into said flow of water, an energy efficient arrangement may be provided in that gas exhausted during drive of the amphibious tracked vehicle is utilized.
According to an aspect of the present disclosure, said gas provision device 100 is comprised in said combustion engine. According to an aspect of the present disclosure, said combustion engine comprises said gas provision device 100.
According to an aspect of the present disclosure, said gas provision device 100 is configured to control said introduction of gaseous medium G into the flow of water at the upper side 4a of said endless track 4 by means of said combustion engine. According to an aspect of the present disclosure, said gas provision device 100 is configured to control said introduction of gaseous medium G into the flow of water at the upper side 4a of said endless track 4 by means of said combustion engine based on rotational speed of said endless track 4 provided by means of operation of said combustion engine.
According to an aspect of the present disclosure, exhaust gas from said combustion engine is utilized for said introduction of gaseous medium G into said flow of water based on rotational speed of said endless track 4 in such a way that higher rotational speed provided by operation of said combustion engine results in higher amount of exhaust gas introduced into said flow of water relative to a lower rotational speed, lower than said higher rotational speed, provided by said combustion engine.
According to an aspect of the present disclosure, said combustion engine, in connection to an amphibious operation, is configure to act as said gas provision device 100 so that introduction of said gaseous medium G into said flow of water automatically is based on the rotational speed of said endless track 4, said rotational speed being provided by said combustion engine.
According to an aspect of the present disclosure, said gas provision device 100 may be configured to utilize exhaust gas from said combustion engine for said introduction of gaseous medium G into said flow of water at said upper side 4a of said endless track 4 alone or in combination with introduction of other gaseous medium G than said exhaust gas.
According to an aspect of the present disclosure, said gaseous medium G comprises air.
According to an aspect of the present disclosure, said gas provision device 100 is configured to retain air stored within said vehicle V1. According to an aspect of the present disclosure, said gas provision device 100 is configured to provide introduction of air stored within said vehicle into said space S1 with said flow of water at said upper side 4 of said endless track 4 so as to facilitate efficient reduction of the density of the mass associated with said flow of water.
According to an aspect of the present disclosure, said gas provision device 100 is configured to retain air externally from an outer side portion of said vehicle V1 configured to be above water during swimming operation of said vehicle V1, see e.g.
According to an aspect of the present disclosure, said gas provision device 100 is configured to provide introduction of air into said space S1 with said flow of water at said upper side 4 of said endless track 4 so as to facilitate efficient reduction of the density of the mass associated with said flow of water.
By thus retaining and utilizing air as at least part of the gaseous medium introduced into said space, efficient reduction of the density of the mass associated with said flow of water is facilitated in that the required amount of gaseous medium may be efficiently controlled.
According to an aspect of the present disclosure, said gas provision device 100 is configured to provide introduction of gaseous medium into the flow of water at the upper side 4a of said endless track 4 via one or more introduction openings in connection to said upper side 4a.
According to an aspect of the present disclosure, said arrangement A for facilitating amphibious operation of a tracked vehicle V1 comprises a gas valve arrangement 130 for controlling introduction of gaseous medium G into the flow of water at the upper side 4a of the track 4. According to an aspect of the present disclosure, said gas valve arrangement 130 is comprised in and/or operably connected to said gas provision device 100. According to an aspect of the present disclosure, said gas provision device 100 comprises a gas valve arrangement 130 for controlling introduction of gaseous medium G into the flow of water at the upper side 4a of the track 4.
According to an aspect of the present disclosure, said gas valve arrangement 130 is configured to control introduction of gaseous medium G into said space S1 with the flow of water at the upper side 4a of the track 4.
According to an aspect of the present disclosure, said gas valve arrangement 130 is operable between a closed position in which said gaseous medium is prevented from being introduced into said space S1 and an open position in which said gaseous medium is allowed to be introduced into said space S1. According to an aspect of the present disclosure, said gas valve arrangement 130 may be operable between different degrees of openness between said closed position and said open position, said open position being a fully open position. According to an aspect of the present disclosure, said gas valve arrangement 130 may be configured to provide a closed position, a fully open position and open positions with different degree of openness. According to an aspect of the present disclosure, said gas valve arrangement 130, when open or partly open for supplying gaseous medium into said space S1, is configured to prevent flow in the opposite direction so as to prevent flow of water in said opposite direction. According to an aspect of the present disclosure, said gas valve arrangement 130 comprises one or more check valves, non-return valves or the like.
According to an aspect of the present disclosure, said gas valve arrangement 130 is configured, in said open position and where applicable said positions with certain degree of openness, to provide said one or more introduction openings in connection to said upper side.
According to an aspect of the present disclosure, said gas valve arrangement 130 comprises one or more valve members for said control of introduction of gaseous medium G into the flow of water at the upper side 4a of the track 4. According to an aspect of the present disclosure, a respective introduction opening of said one or more introduction openings is associated with a corresponding valve member of said one or more valve members of said gas valve arrangement 130.
According to an aspect of the present disclosure, said gas valve arrangement 130 is operably connected to a gas line arrangement L through which said gaseous medium is configured to be transported by means of said gas provision device 100. Said gas line arrangement is comprised in or operably connected to said gas provision device 100.
According to an aspect of the present disclosure, said gas line arrangement L comprises one or more gas lines for transporting said gaseous medium for introduction of said gaseous medium G into the flow of water at the upper side 4a of the track 4. According to an aspect of the present disclosure, a respective gas line of said one or more gas lines is associated with a corresponding valve member of said one or more valve members of said gas valve arrangement 130. Gas line refers to any line suitable gas transportation means for transporting a gaseous medium, e.g. a pressurised gaseous medium. Gas line may also be denoted gas tube, gas pipe, or the like.
According to an aspect of the present disclosure, schematically illustrated in
According to an aspect of the present disclosure, schematically illustrated in
According to an aspect of the present disclosure, said gas provision device 100 is configured to control said introduction of gaseous medium into the flow of water at the upper side 4a of said endless track 4 based on direction of rotational speed of said endless track 4.
According to an aspect of the present disclosure, said gas provision device 100 is configured to control said introduction of gaseous medium into the flow of water at the upper side 4a of said endless track 4 based on rotational direction of said endless track 4.
According to an aspect of the present disclosure, said gas provision device 100 is configured to control said introduction of gaseous medium into the flow of water at the upper side 4a of said endless track 4 based on direction of rotational speed of said endless track 4 such that said introduction of gaseous medium G into the flow of water is provided from the rear side of the tracked vehicle V1 during a rotation of said endless track 4 for forward drive of the tracked vehicle V1, and such that said introduction of gaseous medium into the flow of water is provided from the front side of the tracked vehicle V1 during a rotation of said endless track for rearward drive of the tracked vehicle V1.
According to an aspect of the present disclosure, said arrangement A comprises a space provision arrangement 12, 20 configured to provide said space S1 in connection to the upper side 4a of the track 4 of the respective track assembly T1, T2. Said space provision arrangement 12, 20 is configured to be arranged so as to facilitate retention of the gaseous medium G introduced by means of said gas provision device 100 and thereby the reduction of the amount of water within said space S1.
According to an aspect of the present disclosure, said space provision arrangement 12, 20 comprises said under structure portions 12 of said vehicle body 10. Each under structure portion 12 is arranged to run over an upper side 4a of a track 4 of a track assembly T1, T2 at a distance from the upper side 4a of the track 4 so that said space S1 is provided between each under structure portion 12 and the upper side 4a of the track 4 of the corresponding track assembly T1, T2.
According to an aspect of the present disclosure, said space provision arrangement 12, 20 comprises an enclosure configuration 20 arranged in connection to said vehicle body 10 so as to at least partly provide enclosure of said space S1.
According to an aspect of the present disclosure, said enclosure configuration 20 comprises elongated side elements 22, 23 arranged at and configured to run along a respective side of the vehicle so as to provide enclosure of said space S1 for further facilitating retention of gaseous medium G introduced into said space S1. According to an aspect of the present disclosure, said elongated side elements 22, 23 are arranged at and configured to run along the respective track assembly T1, T2. According to an aspect of the present disclosure, said elongated side elements 22, 23 are arranged at and configured to run along a respective side of the vehicle in connection to the respective track assembly T1, T2.
According to an aspect of the present disclosure, said elongated side elements 22, 23 comprises external side elements 22 configured to run in connection to and externally relative to said under structure portion and said external side 4e of said upper portion 4a of said track 4. According to an aspect of the present disclosure, said elongated side elements 22, 23 may comprise internal side elements 23 configured to run in connection to and internally relative to said under structure portion and said internal side 4i of said upper portion 4a of said track 4. According to an aspect of the present disclosure, said internal side elements 23 are arranged to run essentially parallel to said external side elements 22 along said vehicle V1.
According to an aspect of the present disclosure, said elongated side elements 22, 23 are configured to run in connection to said vehicle body 10. According to an aspect of the present disclosure, said elongated side elements 22, 23 are connected to said vehicle body 10 and configured to run in connection to the respective track assembly T1, T2 so as to provide enclosure of said space S1. According to an aspect of the present disclosure, said elongated side elements 22, 23 are an integrated portion of said vehicle body, arranged at and configured to run along a respective side of the vehicle so as to provide enclosure of said space S1. According to an aspect of the present disclosure, said external side elements 22 and/or said internal side elements 23 are an integrated portion of said vehicle body, arranged at and configured to run along a respective side of the vehicle in connection to the respective track assembly T1, T2 so as to provide enclosure of said space S1.
Said elongated side elements 22, 23 may have any suitable configuration and design. According to an aspect of the present disclosure, said elongated side elements 22, 23 have a plate shaped or wall shaped configuration arranged at and configured to run along a respective side of the vehicle.
According to an aspect of the present disclosure, said enclosure configuration 20 comprises front elements 24 arranged at a front portion of the vehicle V1 so as to provide further enclosure of said space for further facilitating retention of gaseous medium introduced into said space S1. According to an aspect of the present disclosure, said front elements 24 are arranged in connection to the front portion of the respective track assembly T1, T2, the front portion referring to the front of the vehicle.
According to an aspect of the present disclosure, said front elements 24 are arranged in connection to said vehicle body 10. According to an aspect of the present disclosure, said front elements 24 are connected to front portions of said vehicle body 10 so as to provide enclosure of said space S1. According to an aspect of the present disclosure, said front elements 24 are an integrated portion of a front portion said vehicle body 10 so as to provide enclosure of said space S1.
Said front elements 24 may have any suitable configuration and design. According to an aspect of the present disclosure, said front elements 24 have a plate shaped or wall shaped configuration arranged at a front portion of said vehicle at the respective track assembly T1, T2.
According to an aspect of the present disclosure, said enclosure configuration 20 comprises rear elements 26 arranged at a rear portion of the vehicle V1 so as to provide further enclosure of said space for further facilitating retention of gaseous medium introduced into said space S1. According to an aspect of the present disclosure, said rear elements 26 are arranged in connection to the rear portion of the respective track assembly T1, T2, the rear portion referring to the rear of the vehicle.
According to an aspect of the present disclosure, said rear elements 26 are arranged in connection to said vehicle body 10. According to an aspect of the present disclosure, said rear elements 26 are connected to rear portions of said vehicle body 10 so as to provide enclosure of said space S1. According to an aspect of the present disclosure, said rear elements 26 are an integrated portion of a rear portion said vehicle body 10 so as to provide enclosure of said space S1.
Said rear elements 26 may have any suitable configuration and design. According to an aspect of the present disclosure, said rear elements 26 have a plate shaped or wall shaped configuration arranged at a rear portion of said vehicle at the respective track assembly T1, T2.
According to an aspect of the present disclosure, said enclosure configuration 20 may comprise elongated roof elements 28 configured to run in connection to the respective track assembly T1, T2 above said upper side 4a so as to provide enclosure of said space S1. Said elongated roof elements 28 are according to an embodiment arranged in connection to said under structure portion 12 of the vehicle body. Said elongated roof elements 28 are according to an embodiment an integrated part of said under structure portion 12 of the vehicle body.
Said enclosure configuration 20 may be arranged to provide a skirt configuration in connection to said upper side 4a of said track 4 of the respective track assembly T1, T2 of the amphibious tracked vehicle V1 so as to provide enclosure of said space S1.
One or more of said elongated side element 22, 23, said front elements 24 and rear elements 26 of the enclosure configuration 20 for the respective side of the vehicle V1 may be attached to the under structure portion 12 for the respective side of the vehicle so as to provide said space provision arrangement for providing said space S1 and enclosure for facilitating retention of gaseous medium introduced into said space S1. Said under structure portion 12 for the respective side of the vehicle V1 provides a sealing of said space S1.
According to an aspect of the present disclosure, said space provision arrangement 12, 20 comprises one or more of said one or more introduction openings via which openings said gas provision device 100 is configured to provide introduction of gaseous medium into the flow of water at the upper side 4a of said endless track 4.
According to an aspect of the present disclosure, said under structure portions 12 comprises one or more of said one or more introduction openings via which openings said gas provision device 100 is configured to provide introduction of gaseous medium into the flow of water at the upper side 4a of said endless track 4.
According to an aspect of the present disclosure, said enclosure configuration 20 comprises one or more of said one or more introduction openings via which openings said gas provision device 100 is configured to provide introduction of gaseous medium into the flow of water at the upper side 4a of said endless track 4.
According to an aspect of the present disclosure, one or more of said elongated side elements 22, 23, said front elements 24 and rear elements 26 of said enclosure configuration 20 comprises one or more of said one or more introduction openings via which openings said gas provision device 100 is configured to provide introduction of gaseous medium into the flow of water at the upper side 4a of said endless track 4.
According to an aspect of the present disclosure, one or more of said one or more valve members of said gas valve arrangement 130, via which said gas provision device 100 is configured to provide introduction of gaseous medium into the flow of water at the upper side 4a of said endless track 4, are arranged in connection to said space provision arrangement 12, 20.
According to an aspect of the present disclosure, one or more of said one or more valve members of said gas valve arrangement 130 are arranged in connection to said under structure portions 12.
According to an aspect of the present disclosure, one or more of said one or more valve members of said gas valve arrangement 130 are arranged in connection to said enclosure configuration 20. According to an aspect of the present disclosure, one or more of said one or more valve members of said gas valve arrangement 130 are connected to said enclosure configuration 20.
According to an aspect of the present disclosure, one or more of said one or more valve members of said gas valve arrangement 130 are arranged in connection to one or more of said elongated side elements 22, 23, said front elements 24, rear elements 26 and, where applicable, said elongated roof element 28 of said enclosure configuration 20.
Said enclosure configuration 20 may comprise existing parts of the vehicle, i.e. existing parts of the vehicle body and/or existing parts attached to said vehicle body and configured such that certain enclosure of said space is facilitated.
The main purpose of the present disclosure is to facilitate amphibious operation of a tracked vehicle such that the swimming operation and hence the movement of the tracked vehicle in water is facilitated such that the tracked vehicle may move at a higher speed during swimming operation. Above, with reference to e.g.
The gas provision device 100 of the arrangement A for facilitating amphibious operation of a tracked vehicle may, according to an aspect of the present disclosure, be utilized without such an enclosure configuration, and still obtain an improved swimming ability of the tracked vehicle during amphibious operation.
The gas provision device 100 of the arrangement A for facilitating amphibious operation of a tracked vehicle may, according to an aspect of the present disclosure, be integrated into e.g. a tracked vehicle VIP illustrated in
The gas provision device 100 of the arrangement A for facilitating amphibious operation of a tracked vehicle may, according to an aspect of the present disclosure, be utilized without such an enclosure configuration e.g. according to
Thus, according to such an embodiment of the present disclosure, said under structure portions 12 of said vehicle body provides at least parts of a space provision arrangement configured to provide said space S1 in connection to the upper side 4a of the track 4 of the respective track assembly, so as to facilitate retention of the gaseous medium G introduced by means of said gas provision device 100 and thereby the reduction of the amount of water within said space. The gas provision device 100 applied to such a tracked vehicle lacking such an enclosure configuration device 20 but having a vehicle body with such under-structure portions 12 may be a gas provision device as described with reference to any of
According to an aspect of the present disclosure, said gas provision device 100 is configured to control said introduction of gaseous medium into the flow of water at the upper side 4a of said endless track 4. According to an aspect of the present disclosure, said gas provision device 100 is configured to control said introduction of gaseous medium into the flow of water at the upper side 4a of said endless track 4 based on rotational speed of said endless track 4.
According to an aspect of the present disclosure, said arrangement A for facilitating amphibious operation of a tracked vehicle comprises a control device 200 for controlling introduction of gaseous medium into the flow of water at the upper side 4a of said endless track 4. According to an aspect of the present disclosure, said control device 200 is comprised in said gas provision device 100. According to an aspect of the present disclosure, said control device 200 is operably connected to said gas provision device 100.
The control device 200 may be configured to control introduction of gaseous medium into the flow of water at the upper side 4a of said endless track 4 in connection to an amphibious operation based on one or more of position of the tracked vehicle V1, level of water surrounding the vehicle, amphibious operation activation by operator and speed of the respective endless track 4 of the vehicle.
The control device 200 may be configured to control pressure of introduced gaseous medium into the flow of water at the upper side 4a of said endless track 4 in connection to an amphibious operation based on one or more of position of the tracked vehicle V1, level of water surrounding the vehicle, amphibious operation activation by operator and speed of the respective endless track 4 of the vehicle.
The control device 200 may be configured to control type of gaseous medium introduced into the flow of water at the upper side 4a of said endless track 4, said type of gaseous medium being e.g. external air external to the vehicle, air within said vehicle, exhaust gas of combustion engine of drive means of vehicle, in connection to an amphibious operation based on one or more of position of the tracked vehicle V1, level of water surrounding the vehicle, amphibious operation activation by operator and speed of the respective endless track 4 of the vehicle, accessibility to different types of gaseous medium.
According to an aspect of the present disclosure, said control device 200 is configured to control said introduction of gaseous medium G into the flow of water at the upper side 4a of said endless track 4 based on rotational speed of said endless track 4. According to an aspect of the present disclosure, said control device 200 is configured to control said introduction of gaseous medium G into the flow of water at the upper side 4a of said endless track based on rotational speed of said endless track 4 such that a higher amount of gaseous medium is introduced into said flow of water at a higher rotational speed than at a lower rotational speed, relatively lower than said higher rotational speed.
According to an aspect of the present disclosure, said control, by means of said control device, of said introduction of gaseous medium G into the flow of water at the upper side 4a of said endless track 4 based on rotational speed of said endless track 4, comprises control based on direction of rotational speed of said endless track 4. According to an aspect of the present disclosure, said control device 200 is configured to control said introduction of gaseous medium into the flow of water at the upper side 4a of said endless track 4 based on direction of rotational speed of said endless track 4. According to an aspect of the present disclosure, said control device 200 is configured to control said introduction of gaseous medium into the flow of water at the upper side 4a of said endless track 4 based on rotational direction of said endless track 4.
According to an aspect of the present disclosure, said control device 200 is configured to control said introduction of gaseous medium into the flow of water at the upper side 4a of said endless track 4 based on direction of rotational speed, i.e. rotational direction, of said endless track 4 such that said introduction of gaseous medium G into the flow of water is provided from the rear side of the tracked vehicle V1 during a rotation of said endless track 4 for forward drive of the tracked vehicle V1, and such that said introduction of gaseous medium into the flow of water is provided from the front side of the tracked vehicle V1 during a rotation of said endless track for rearward drive of the tracked vehicle V1.
According to an aspect of the present disclosure, said control device 200 may be configured to control said gas valve arrangement 130 for controlling introduction of gaseous medium G into the flow of water at the upper side 4a of the track 4.
The position of the vehicle V1 may be determined by means of any suitable detector unit, now shown, for detecting vehicle position. The position of the vehicle may be determined by means a Global Navigation Satellite System, GNSS, e.g. a global positioning system, GPS, for determining the position of the vehicle and thus whether the tracked vehicle V1 is driving on land and thus is performing a land operation or whether the tracked vehicle V1 is in connection to perform an amphibious operation. The position of the tracked vehicle may be determined by means of one or more sensor units arranged on the tracked vehicle, such as one or more cameras and/or one or more laser scanners. Thus, the detector unit for detecting vehicle position may comprise a Global Navigation satellite System and/or one or more sensor units such as cameras.
The control device 200 may according to an aspect of the present disclosure comprise or be operably connected to the detector unit for detecting vehicle position so as to determine whether the vehicle is in connection to perform an amphibious operation.
The level of water surrounding the tracked vehicle V1 may be determined by means of any suitable water level sensor device, not shown, arranged in connection to the vehicle. The control device 200 may according to an aspect of the present disclosure comprise or be operably connected to the water level sensor device. The control device 200 may according to an aspect of the present disclosure be configured to activate introduction of gaseous medium into the flow of water at the upper side 4a of the track 4 of the respective track assembly.
The amphibious operation activation by operator may comprise any suitable operator activatable activation member, not shown. Such an activation member may be any suitable activation member such as a switch, touch screen, lever or the like. The control device 200 may according to an aspect of the present disclosure comprise or be operably connected to the operator activatable activation member for activating introduction of gaseous medium into the flow of water at the upper side 4a of the track 4 of the respective track assembly by means of said gas provision device 100. The gas provision device 100 may according to an aspect of the present disclosure comprise or be operably connected to the operator activatable activation member for activation of introduction of gaseous medium into the flow of water at the upper side 4a of the track 4 of the respective track assembly.
Thus, the amphibious tracked vehicle according to an aspect of the present disclosure may be a stand alone tracked vehicle V1 as shown in
The articulated tracked vehicle V2 comprises a first tracked vehicle unit V1 and a second tracked vehicle unit VIA pivotably connected to the first vehicle unit V1 via an articulation joint Y. The first vehicle unit V1 is configured to be the leading vehicle and the second vehicle unit VIA the trailing vehicle. The first vehicle unit V1, according to an aspect of the present disclosure, essentially corresponds to the amphibious tracked vehicle illustrated in
Thus, the first vehicle unit V1 comprises a track assembly pair comprising opposite track assemblies for driving the vehicle unit V1, a left track assembly T1 shown in
The first vehicle unit V1 comprises a vehicle body 10. The track assembly pair is suspendedly connected to the vehicle body 10.
The respective track assembly, in
The respective track assembly, in
The endless track 4 is a propulsion track 4 running around said wheels 1, 2, 3 for driving the vehicle unit V1. The endless track 4 has an outer side with an outer surface which, during swimming operation, will be in contact with water and move the water when the endless track is running around the wheels 1, 2, 3. When the endless track is running around the wheels 1, 2, 3 a portion of the outer side will be faced upwardly and thus be an upper side 4a and an opposite portion of the outer side will face downwardly and thus be an underside 4b.
The drive wheel 1 is configured to be operated by any suitable drive means such as an internal combustion engine and or/or an electric motor. The drive wheel 1 is configured to be rotated by the drive means for rotating the endless track for driving the vehicle V1.
The vehicle body 10 comprises under structure portions 12, a left under structure portion 12 shown in
Further, the second vehicle unit VIA, pivotably connected to the first vehicle unit V1, comprises a track assembly pair comprising opposite track assemblies for the vehicle unit VIA, a left track assembly TIA shown in
The second vehicle unit VIA comprises a vehicle body 10A. The track assembly pair is suspendedly connected to the vehicle body 10A.
The respective track assembly, in
The respective track assembly, in
The endless track 4A is a propulsion track 4A running around said wheels 1A, 2A, 3A for driving the vehicle unit V1. The endless track 4A has an outer side with an outer surface which, during swimming operation, will be in contact with water and move the water when the endless track is running around the wheels 1A, 2A, 3A. When the endless track is running around the wheels 1A, 2A, 3A a portion of the outer side will be faced upwardly and thus be an upper side 4a and an opposite portion of the outer side will face downwardly and thus be an underside 4b.
The drive wheel 1A is configured to be operated by any suitable drive means, not shown in
The vehicle body 10A comprises under structure portions 12A, a left under structure portion 12A shown in
The articulated tracked vehicle V2 comprises an arrangement A for facilitating swimming operation of the articulated tracked vehicle V2.
The amphibious articulated tracked vehicle V2 comprises an arrangement A for facilitating swimming operation of the tracked vehicle.
The arrangement A comprises a gas provision device 100, 100A configured to, in connection to swimming operation, introduce a gaseous medium G into the flow of water at the upper side 4a of the track 4, 4A of the respective track assembly T1, T1A of the respective vehicle unit V1, V1A of the articulated vehicle V2 so as to reduce the amount of water in connection to said upper side 4a.
According to an aspect of the present disclosure, said provision device 100, 100A is configured to introduce a gaseous G medium into the flow of water at the upper side 4a of the track of the respective track assembly so as to reduce the amount of water in connection to said upper side 4a so that a propulsion reducing force associated with said flow of water at said upper side 4a is reduced.
Said gas provision device 100, 100A is configured to provide pressurized introduction of said gaseous medium G such that pressurized gaseous medium G is introduced into said flow of water in connection to a space S1, S1A over said upper side 4a so that water in said space is reduced such that the density of the mass associated with said flow of water providing said propulsion reducing force is reduced.
In the example illustrated in
According to an aspect of the present disclosure, said arrangement A comprises a space provision arrangement 12, 20, 12A, 20A configured to provide said space S1, S1A in connection to the upper side 4a of the track 4 of the respective track assembly T1, T1A of the respective vehicle unit V1, V1A of said articulated vehicle V2. Said space provision arrangement 12, 20, 12A, 20A is configured to be arranged so as to facilitate retention of the gaseous medium G introduced by means of said gas provision device 100 and thereby the reduction of the amount of water within said space S1, S1A.
Said space provision arrangement 12, 20, 12A, 20A comprises a first space provision arrangement 12, 20 configured to provide said space S1 in connection to the upper side 4a of the track 4 of the respective track assembly T1 of the leading vehicle unit V1 of said articulated vehicle V2. Said space provision arrangement 12, 20, 12A, 20A comprises a first space provision arrangement 12A, 20A configured to provide said space S1A in connection to the upper side 4a of the track 4A of the respective track assembly T1A of the trailing vehicle unit V1A of said articulated vehicle V2.
According to an aspect of the present disclosure, said space provision arrangement 12, 20, 12A, 20A comprises said under structure portions 12, 12A of said vehicle body 10, 10A of the respective vehicle unit V1, V1A. Each under structure portion 12, 12A is arranged to run over an upper side 4a of a track 4 of a track assembly T1, T1A at a distance from the upper side 4a of the track 4, 4A so that said space S1, S1A is provided between each under structure portion 12, 12A and the upper side 4a of the track 4 of the corresponding track assembly T1, T2.
According to an aspect of the present disclosure, said space provision arrangement 12, 20, 12A, 20A comprises an enclosure configuration 20, 20A arranged in connection to said vehicle body 10, 10A so as to at least partly provide enclosure of said space S1, S1A. According to an aspect of the present disclosure, said enclosure configuration 20, 20A comprises a first enclosure configuration 20 arranged in connection to said vehicle body 10 of the leading vehicle unit 10 so as to at least partly provide enclosure of said space S1, and a second enclosure configuration 20A arranged in connection to said vehicle body 10B of said trailing vehicle unit V1A, so as to at least partly provide enclosure of said space S1A.
According to an aspect of the present disclosure, said enclosure configuration 20, 20A may be an enclosure configuration essentially corresponding to the enclosure configuration described with reference to
According to an aspect of the present disclosure, said enclosure configuration 20, 20A may comprise elongated side elements arranged at and configured to run along a respective side of the respective vehicle unit so as to provide enclosure of said space S1, S1A for further facilitating retention of gaseous medium G introduced into said space S1. Said elongated side elements may be arranged in connection to, e.g. connected to, said vehicle body 10, 10A, or be integrated portions of said vehicle body 10, 10A. According to an aspect of the present disclosure, said enclosure configuration 20, 20A may comprise front elements arranged at a front portion of the respective vehicle unit and/or rear elements arranged at a rear portion of the respective vehicle unit so as to provide further enclosure of said space S1, S1A for further facilitating retention of gaseous medium introduced into said space. Said front elements and/or rear elements may be arranged in connection to, e.g. connected to, said vehicle body 10, 10A, or be integrated portions of said vehicle body 10, 10A.
The gas provision device 100 according to the present disclosure, e.g. the gas provision device 100 schematically illustrated in
According to an aspect of the present disclosure, schematically illustrated in
According to an aspect of the present disclosure, schematically illustrated in
According to an aspect of the present disclosure, said introduction of gaseous medium at said internal side portion 4i being directed in the transversal direction relative to the longitudinal extension of the vehicle in a direction away from the outer side of the vehicle V1.
According to an aspect of the present disclosure, schematically illustrated in
According to an aspect of the present disclosure, schematically illustrated in
According to an aspect, said valve members of said gas valve arrangement 130 are distributed along the longitudinal extension of said vehicle, in connection to said internal side portion 4i, from a rear portion to a front portion of the vehicle.
According to an aspect of the present disclosure, said gas provision device 100 is configured to control said introduction of gaseous medium G into the flow of water at the upper side 4a of said endless track 4 based on rotational speed of said endless track 4 such that a higher amount of gaseous medium G is introduced into said flow of water via said distributed valve members of said gas valve arrangement 130 at a higher rotational speed than at a lower rotational speed, relatively lower than said higher rotational speed.
According to an aspect of the present disclosure, said gas provision device 100 is configured to control said introduction of gaseous medium into the flow of water at the upper side 4a of said endless track 4 based on direction of rotational speed, i.e. rotational direction, of said endless track 4 such that at least a greater portion of said introduced gaseous medium G into the flow of water is provided from valve members of said set of valve member of said valve arrangement 130 being arranged closer to the rear side of the tracked vehicle during a rotation of said endless track 4 for forward drive of the tracked vehicle, and such that at least a greater portion of said introduced gaseous medium G into the flow of water is provided from valve members of said set of valve member of said valve arrangement 130 being arranged closer to the front side of the tracked vehicle during a rotation of said endless track for rearward drive of the tracked vehicle.
According to an aspect of the present disclosure, schematically illustrated in
According to an aspect of the present disclosure, said introduction of gaseous medium in connection to said under structure portion 12 is directed in a direction essentially orthogonal to the transversal extension and longitudinal extension of the vehicle in a direction from the under structure portion 12 downwardly towards said upper portion 4a of said track of the respective track assembly of the tracked vehicle V1.
According to an aspect of the present disclosure, schematically illustrated in
According to an aspect of the present disclosure, schematically illustrated in
According to an aspect of the present disclosure, said valve members are arranged in connection to said under structure portion 12, and being distributed along the longitudinal extension of the under structure portion 12 at the respective side of the vehicle.
According to an aspect of the present disclosure, said gas provision device 100 is configured to control said introduction of gaseous medium G into the flow of water at the upper side 4a of said endless track 4 based on rotational speed of said endless track 4 such that a higher amount of gaseous medium G is introduced into said flow of water via said distributed valve members of said gas valve arrangement 130 at a higher rotational speed than at a lower rotational speed, relatively lower than said higher rotational speed.
According to an aspect of the present disclosure, said gas provision device 100 is configured to control said introduction of gaseous medium into the flow of water at the upper side 4a of said endless track 4 based on direction of rotational speed, i.e. rotational direction, of said endless track 4 such that at least a greater portion of said introduced gaseous medium G into the flow of water is provided from valve members of said set of valve member of said valve arrangement 130 being arranged closer to the rear side of the tracked vehicle during a rotation of said endless track 4 for forward drive of the tracked vehicle, and such that at least a greater portion of said introduced gaseous medium G into the flow of water is provided from valve members of said set of valve member of said valve arrangement 130 being arranged closer to the front side of the tracked vehicle during a rotation of said endless track for rearward drive of the tracked vehicle.
The foregoing description of the preferred embodiments of the invention has been provided for the purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations will be apparent to practitioners skilled in the art. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, thereby enabling other skilled in the art to understand the invention for various embodiments and with the various modifications as are suited to the particular use contemplated.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2151433-6 | Nov 2021 | SE | national |
This application is a U.S. national stage application under 35 U.S.C. 371 of International Application No. PCT/SE2022/051056, filed Nov. 11, 2022, which claims the priority of SE Application No. 2151433-6, filed Nov. 24, 2021. The entire contents of each priority application is incorporated herein by reference.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/SE2022/051056 | 11/11/2022 | WO |
