Sealings

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F16Engineering elements F16JPISTONS CYLINDERS SEALINGS

F16J15/00Sealings

F16J15/002comprising at least two sealings in succession F16J15/004forming or recuperation chamber for the leaking fluid F16J15/006with division of the pressure F16J15/008with provision to put out of action at least one sealing; One sealing sealing only on standstill; Emergency or servicing sealings F16J15/02between relatively-stationary surfaces F16J15/021with elastic packing F16J15/022characterised by structure or material F16J15/024the packing being locally weakened in order to increase elasticity F16J15/025and with at least one flexible lip F16J15/027and with a hollow profile F16J15/028the packing being mechanically expanded against the sealing surface F16J15/04without packing between the surfaces F16J15/06with solid packing compressed between sealing surfaces F16J15/061with positioning means F16J15/062characterised by the geometry of the seat F16J15/064the packing combining the sealing function with other functions F16J15/065fire resistant F16J15/067Split packings F16J15/068the packing swelling under working conditions F16J15/08with exclusively metal packing F16J15/0806characterised by material or surface treatment F16J15/0812with a braided or knitted body F16J15/0818Flat gaskets F16J15/0825laminated F16J15/0831with mounting aids F16J15/0881the sealing effect being obtained by plastic deformation of the packing F16J15/0887the sealing effect being obtained by elastic deformation of the packing F16J15/0893the packing having a hollow profile F16J15/10with non-metallic packing F16J15/102characterised by material F16J15/104characterised by structure F16J15/106homogeneous F16J15/108Special methods for making a non-metallic packing F16J15/12with metal reinforcement or covering F16J15/121with metal reinforcement F16J15/122generally parallel to the surfaces F16J15/123Details relating to the edges of the packing F16J15/125generally perpendicular to the surfaces F16J15/126consisting of additions F16J15/127the reinforcement being a compression stopper F16J15/128with metal covering F16J15/14by means of granular or plastic material, or fluid F16J15/16between relatively-moving surfaces F16J15/162Special parts or details relating to lubrication or cooling of the sealing itself F16J15/164the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid F16J15/166with means to prevent the extrusion of the packing F16J15/168which permits material to be continuously conveyed F16J15/18with stuffing-boxes for elastic or plastic packings F16J15/181for plastic packings F16J15/182with lubricating, cooling or draining means F16J15/183using a lantern ring F16J15/184Tightening mechanisms F16J15/185with continuous adjustment of the compression of the packing F16J15/186using springs F16J15/187Self-aligning stuffing-boxes F16J15/188Split assemblies F16J15/189Means for facilitating the removal of the packing F16J15/20Packing materials therefor F16J15/22shaped as strands, ropes, threads, ribbons, or the like F16J15/24with radially or tangentially compressed packing F16J15/26with stuffing-boxes for rigid sealing rings F16J15/28with sealing rings made of metal F16J15/30with sealing rings made of carbon F16J15/32with elastic sealings F16J15/3204with at least one lip F16J15/3208provided with tension elements F16J15/3212with metal springs F16J15/3216supported in a direction parallel to the surfaces F16J15/322supported in a direction perpendicular to the surfaces F16J15/3224capable of accommodating changes in distances or misalignment between the surfaces F16J15/3228formed by deforming a flat ring F16J15/3232having two or more lips F16J15/3236with at least one lip for each surface F16J15/324Arrangements for lubrication or cooling of the sealing itself F16J15/3244with hydrodynamic pumping action F16J15/3248provided with casings or supports F16J15/3252with rigid casings or supports F16J15/3256comprising two casing or support elements, one attached to each surface F16J15/326with means for detecting or measuring relative rotation of the two elements F16J15/3264the elements being separable from each other F16J15/3268Mounting of sealing rings F16J15/3272the rings having a break or opening F16J15/3276with additional static sealing between the sealing, or its casing or support, and the surface on which it is mounted F16J15/328Manufacturing methods specially adapted for elastic sealings F16J15/3284characterised by their structure Selection of materials F16J15/3288Filamentary structures F16J15/3292Lamellar structures F16J15/3296Arrangements for monitoring the condition or operation of elastic sealings Arrangements for control of elastic sealings F16J15/34with slip-ring pressed against a more or less radial face on one member F16J15/3404and characterised by parts or details relating to lubrication, cooling or venting of the seal F16J15/3408at least one ring having an uneven slipping surface F16J15/3412with cavities F16J15/3416with at least one continuous groove F16J15/342with means for feeding fluid directly to the face F16J15/3424with micro-cavities F16J15/3428with a wavy surface F16J15/3432the geometry of the surface being able to vary during operation F16J15/3436Pressing means F16J15/344the pressing force being applied by means of an elastic ring supporting the slip-ring F16J15/3444by magnetic attraction F16J15/3448the pressing force resulting from fluid pressure F16J15/3452the pressing force resulting from the action of a spring F16J15/3456without external means for pressing the ring against the face F16J15/346the pressing force varying during operation F16J15/3464Mounting of the seal F16J15/3468Means for controlling the deformations of the contacting faces F16J15/3472Means for centering or aligning the contacting faces F16J15/3476Means for minimising vibrations of the slip-ring F16J15/348Pre-assembled seals F16J15/3484Tandem seals F16J15/3488Split-rings F16J15/3492with monitoring or measuring means associated with the seal F16J15/3496use of special materials F16J15/36connected by a diaphragm or bellow to the other member F16J15/363the diaphragm or bellow being made of metal F16J15/366and comprising vibration-damping means F16J15/38sealed by a packing F16J15/40by means of fluid F16J15/403by changing the state of matter F16J15/406by at least one pump F16J15/42kept in sealing position by centrifugal force F16J15/43kept in sealing position by magnetic force F16J15/44Free-space packings F16J15/441with floating ring F16J15/442segmented F16J15/443provided with discharge channels F16J15/444with facing materials having honeycomb-like structure F16J15/445with means for adjusting the clearance F16J15/447Labyrinth packings F16J15/4472with axial path F16J15/4474Pre-assembled packings F16J15/4476with radial path F16J15/4478Pre-assembled packings F16J15/453characterised by the use of particular materials F16J15/46with packing ring expanded or pressed into place by fluid pressure F16J15/48influenced by the pressure within the member to be sealed F16J15/50between relatively-movable members, by means of a sealing without relatively-moving surfaces F16J15/52by means of sealing bellows or diaphragms F16J15/525fixed to a part of a transmission performing a wobbling or a circular translatory movement F16J15/54Other sealings for rotating shafts F16J15/545submitted to unbalanced pressure in circumference; seals for oscillating actuator F16J15/56Other sealings for reciprocating rods