This disclosure is directed generally to power systems and, more particularly, to power systems with a rear surface exhaust.
Conventionally, engine-driven power systems (e.g., generators/air compressors/welders) are contained within a metal enclosure that provides environmental protection for the equipment and provides a safety, sound, and aesthetic barrier for the operators. Many different types of enclosures have been used for conventional power systems. Conventional enclosures are configured with components in such a way as to house the engine and/or generator components based on their relative locations. Moreover, power systems that include an engine typically include an exhaust system configured to release exhaust from the engine external to the enclosure and reduce noise generated by the engine.
Power systems with a rear surface exhaust, substantially as illustrated by and described in connection with at least one of the figures.
The features of the present disclosure will best be understood from a detailed description of the invention and a preferred embodiment thereof selected for the purposes of illustration and shown in the accompanying drawings.
The figures are not necessarily to scale. Where appropriate, similar or identical reference numbers are used to refer to similar or identical components.
Engine-driven power systems, which generate and output one or more types of mechanical, electrical, pneumatic, hydraulic, and/or other types of power, rely on an exhaust system to expel exhaust from an engine external to an enclosure of the power system. A muffler of the exhaust system may also help reduce noise associated with operating the engine. In conventional power systems, a tail pipe of the exhaust system extends through a top surface of the enclosure. In such systems, the tail pipe is exposed to the user, presenting a safety risk during operation (e.g., due to increased temperatures of the tail pipe during operation of the power system). Moreover, the power system may be shipped without the tail pipe installed to comply with packaging constraints and to avoid damage during shipping. In this way, a user may have to install the tail pipe (or a portion thereof) themselves upon receiving the power system.
The power system disclosed herein include an exhaust system with a tail pipe that terminates at or near a rear surface of the enclosure. In some examples, the tail pipe may not extend outside of the enclosure at all. Therefore, in power systems with a tail pipe that terminates at or near a rear surface of the enclosure, the tail pipe is not exposed to the user or is minimally exposed to contact with the user (e.g., less exposed than in conventional power systems). In addition, the power system can be shipped fully assembled. In other words, the tail pipe may be preinstalled in the power system prior to shipping such that the user does not have to install the tail pipe (or a portion thereof) themselves. In turn, the disclosed power systems may require less packaging materials and/or have a reduced package size during shipping. Moreover, the disclosed power systems may have fewer parts than conventional power systems.
As used herein, welding-type power refers to power suitable for welding, cladding, plasma cutting, induction heating, laser (including laser welding and laser cladding), carbon arc cutting or gouging and/or resistive preheating. As used herein, welding-type conversion circuitry refers to circuitry which, upon application of input power, converting the input power to welding-type power and outputting the welding-type power, including but not limited to transformer-rectifiers, inverters, converters, resonant power supplies, quasi-resonant power supplies, switch-mode power supplies, etc., as well as control circuitry and other ancillary circuitry associated therewith.
As illustrated in
The example power system 100 of
In some examples, the power system 100 includes one or more power subsystems. For example, the generator 116 may provide the electrical power to welding-type conversion circuitry 120 configured to output welding-type power, an air compressor 122 configured to output pneumatic power, a hydraulic pump 124 configured to output hydraulic flow, auxiliary power conversion circuitry 126 configured to output AC power and/or DC power (e.g., DC and/or AC electrical output(s)), and/or any other load device. The example hydraulic pump 124 and the air compressor 122 may be powered by mechanical power from the engine 114 and/or by electrical power from the generator 116.
In some examples, an external power supply subsystem 128 may be coupled (e.g., plugged in, hardwired, etc.) to the power system 100 to convert at least one of the AC power or the DC power from the auxiliary power conversion circuitry 126 and/or the generator 116 to at least one of AC power or DC power, such as to power external devices that have different power requirements. The example external power supply subsystem 128 may also be communicatively coupled to control circuitry 132 of the power system 100 (e.g., wirelessly, via power line communication, via a communication cable, etc.) to enable the control circuitry 132 to control the demand and/or output of the external power supply subsystem 128.
The welding-type conversion circuitry 120 converts output power from the generator 116 (e.g., via the intermediate voltage bus) to welding-type power based on a commanded welding-type output. The welding-type conversion circuitry 120 provides current at a desired voltage to an electrode and a workpiece via output terminals to perform a welding-type operation. The welding-type conversion circuitry 120 may include, for example, a switched mode power supply or an inverter fed from an intermediate voltage bus. The welding-type conversion circuitry 120 may include a direct connection from a power circuit to the output (such as to the weld studs), and/or an indirect connection through power processing circuitry such as filters, converters, transformers, rectifiers, etc.
The auxiliary power conversion circuitry 126 converts output power from the generator 116 (e.g., via the intermediate voltage bus) to AC power (e.g., 120 VAC, 240 VAC, 50 Hz, 60 Hz, etc.) and/or DC power (e.g., 12 VDC, 24 VDC, battery charging power, etc.). The auxiliary power conversion circuitry 126 outputs one or more AC power outputs (e.g., AC outlets or receptacles) and/or one or more DC power outputs (e.g., DC outlets or receptacle). The power system 100 enables multiple ones of the power subsystems (e.g., the hydraulic pump, the air compressor 122, the welding-type conversion circuitry 120, the auxiliary power conversion circuitry 126, the external power supply subsystem 128, etc.) to be operated simultaneously.
In some examples, the power system 100 includes a user interface 130. The user interface 130 includes an input device configured to receive inputs selecting mode(s) representative of welding-type processes, mode(s) representative of one or more battery charging modes, mode(s) representative of a vehicle load, and/or other modes such as a pneumatic load and/or a hydraulic load. In the example of
The power system 100 includes an exhaust system 118. In some examples, the exhaust system 118 includes a muffler 134 and a tail pipe 112. The muffler 134 and tail pipe 112 function as an exhaust of the engine 114. In this way, the exhaust system 118 is configured to release exhaust gases from the engine 114 external to the enclosure 102. The muffler 134 also reduces the sound of the engine 114 during operation. The tail pipe 112 directs the exhaust gas from the engine 114 external to the enclosure 102. For example, as seen in
The tail pipe 112 can have any suitable configuration. In some examples, as seen in
In some examples, a plane defined by the exhaust end 138 of the tail pipe 112 may be parallel to the rear surface 104 of the enclosure 102. In other examples, the plane defined by the exhaust end 138 of the tail pipe 112 may not be parallel to the rear surface 104 of the enclosure 102. In some such examples, an angle between the plane defined by the exhaust end 138 of the tail pipe 112 and the rear surface 104 may be an acute angle (e.g., less than 90 degrees). For example, the angle may be less than about 50 degrees, about 30 degrees, about 15 degrees, or less than about 10 degrees. In other examples, the angle between the plane defined by the exhaust end 138 of the tail pipe 112 and the rear surface 104 may be a different angle.
The disclosed power system 100 does not include a tail pipe 112 or another component of the exhaust system 118 that extends through the top surface 106 of the enclosure 102. Rather, the exhaust system 128 (e.g., the tail pipe 112) is arranged relative the rear surface 104 of the enclosure 102. For example, the exhaust end 138 of the tail pipe 112 is at or near the rear surface 104.
In some examples, an entire length of the tail pipe 112 may be within the enclosure 102. In such examples, the exhaust end 138 of the tail pipe 112 may be at or near the rear surface 104 (or the aperture 136 defined by the rear surface 104). In this way, the tail pipe 112 terminates at or before the rear surface 104. In contrast to conventional power systems, such examples of the disclosed power systems 100 may have decreased exposure of a high temperature tail pipe to an operator, improved aesthetics (e.g., not visible or less visible tail pipe 112), have a smaller footprint for packaging and shipping, permit reduced clearance for installation, and may not require a user to install the tail pipe 112 (or a portion thereof) (e.g., is preassembled).
In other examples, a user may install a portion of tail pipe 112. For example, a user may install an extension portion to the tail pipe 112 to make the tail pipe longer, direct the exhaust in a specific direction, and/or connect the tail pipe 112 to an exhaust evacuation system (e.g., to direct exhaust a longer distance from the enclosure). In some examples, the extension portion may be rotatable to enable a use to direct the exhaust as desired. In other examples, a user may install the tail pipe 112 itself.
The aperture 136 may define a first cross-sectional length 140 and a second cross-sectional length 142. The exhaust end 138 of the tail pipe 112 may likewise define a third cross-sectional length 144 and a fourth cross-sectional length 146. In some examples, such as the example illustrated in
In other examples, one or more of the cross-sectional lengths 140, 142 of the aperture 136 may be substantially the same as or similar to one or more of the cross-sectional lengths 144, 146 of the exhaust end 138 of the tail pipe 112. For example, in cases in which the tail pipe 112 extends external to the enclosure 102 (e.g., as described with respect to
The aperture 136 and the exhaust end 138 of the tail pipe 112 may be any suitable shape. For example, the aperture 136 and/or the exhaust end 138 of the tail pipe 112 may have a circular, elliptical, rectangular, or any other shaped cross-section. In some examples, the aperture 136 and the exhaust end 138 may define the same cross-sectional shape. In other examples, the aperture 136 and the exhaust end 138 may define different cross-sectional shapes.
As utilized herein, “and/or” means any one or more of the items in the list joined by “and/or”. As an example, “x and/or y” means any element of the three-element set {(x), (y), (x, y)}. In other words, “x and/or y” means “one or both of x and y”. As another example, “x, y, and/or z” means any element of the seven-element set {(x), (y), (z), (x, y), (x, z), (y, z), (x, y, z)}. In other words, “x, y and/or z” means “one or more of x, y and z”. As utilized herein, the term “exemplary” means serving as a non-limiting example, instance, or illustration. As utilized herein, the terms “e.g.,” and “for example” set off lists of one or more non-limiting examples, instances, or illustrations.
While the present method and/or system has been described with reference to certain implementations, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the present method and/or system. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the present disclosure without departing from its scope. For example, systems, blocks, and/or other components of disclosed examples may be combined, divided, re-arranged, and/or otherwise modified. Therefore, the present method and/or system are not limited to the particular implementations disclosed. Instead, the present method and/or system will include all implementations falling within the scope of the appended claims, both literally and under the doctrine of equivalents.
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