Abstract: A slide ring seal, and in particular a running gear seal, including an angled slide and/or counter ring, the radial leg of which is provided with a sliding surface and the axial leg of which forms a seating for a trapezoidal sealing element, wherein the outer ends of the axial leg have recesses, into which engage projections on the sealing element to form anti-rotation locks, wherein the transition area from the axial leg to the radial leg of the slide and/or counter ring provided beyond the sliding surface has a profiling, into which a section of the sealing element having an approximately corresponding construction engages.

Abstract: An apparatus for sealing a gap between a stator vane platform including a seal slot, and a rotatable stator vane including a shaft connected to a vane end. The apparatus includes a substantially flat, semi-annular seal body, a first tab and a second tab. The seal body extends circumferentially between a first body end and a second body end, and radially between a radial inner body side and a radial outer body side. The inner body side wraps partially around the shaft, and the outer body side mates with the seal slot. The first tab extends axially from the first body end, and the second tab extends axially from the second body end. The first tab and the second tab engage the vane end and cause the seal body to move within the seal slot during rotation of the stator vane.

Abstract: A sealed joint may include a first plate with a seal land, a second plate that moves relative to the seal land, and a leaf spring seal. The leaf spring seal includes a stack of seal leaf elements that extend laterally from a first stack end, which is connected to the second plate, towards a distal second stack end. The stack may include a seal land contact segment and a base segment. The seal land contact segment is engaged with the seal land, and spatially separated from the second plate. The base segment is configured laterally between the seal land contact segment and the first stack end, and spatially separated from the first plate. A first of the seal leaf elements has a first longitudinal length, and a second of the seal leaf elements has a second longitudinal length that is different than the first longitudinal length.

Abstract: A sealing assembly, for example a piston ring, for use in harsh environments, e.g., high radiation levels. The piston ring has an annular sealing surface which together with a member forming a radially outer annular cylinder surface, e.g., a cylinder, forms a seal pocket. Received in the seal pocket is an annular seal comprised of a plurality of wraps of at least one strand of a substantially incompressible and inelastic material such as graphite fiber. The assembly further includes a compression ring and compression assembly which compresses the seal body between the support surface and the compression ring to displace the seal body into sealing engagement with the radially inner and outer sealing surfaces.

Abstract: A bulkhead seal includes a housing configured to be attached to a bulkhead about a shaft and defining an annular recess. An annular diaphragm seal is rotatably disposed in the annular recess of the housing and about the shaft. A plurality of orifices extend through the annular diaphragm seal to prevent air pressure differentials from locking the annular diaphragm seal with respect to the housing. A lip seal is provided on each side of the annular diaphragm seal. Each lip seal includes a seal portion disposed to seal the orifices in the presences of liquid.

Abstract: The invention relates to a sealing device (1) for two components (4, 5) which are mounted on each other and are displaceable in relation to each other, in particular of a rotary bearing (2), with an elastomer part (7) which is arranged in a stationary manner on one of the components (4) and has at least one sealing surface (11, 12) providing a seal in relation to a mating sealing surface (9, 10) of the other component (5). In order to reduce the wear and frictional resistance of the sealing device (1), at least one sealing surface (11) is arranged so as to be controllable externally in respect of the press-on force thereof in relation to the mating sealing surface (9).

Abstract: A seal assembly, adapted to seal a joint having a first member pivotable about a rotational axis relative to a second member thereof, includes first and second annular seal rings and first and second annular load rings. The first and second seal rings each has a loading surface, extending axially, and a sealing face, extending radially to an outer perimeter. Each sealing face has a sealing band disposed adjacent the outer perimeter. The first and second seal rings abut one another such that the sealing bands of the first and second seal rings are in contacting relationship with each other. The first and second load rings engage the loading surface of the first and second seal rings, respectively. Each sealing band is brush polished such that it has a surface roughness average of about 0.08 micrometers Ra or less.

Abstract: A seal assembly includes a seal carrier configured to be coupled to and rotate with a shaft. The seal carrier defines at least three annular recesses configured to receive annular seals. The seal assembly further includes at least three annular seals configured to provide a seal between the seal carrier and a non-rotating housing defining an inner surface having a circular cross-section. One of the at least three seals is received in each of the at least three annular recesses, and one of the at least three seals has a smaller cross-sectional area than a cross-sectional area of at least one of the other seals.

Abstract: A compact steering mechanism for steering a vehicle having a steering input being a pinion shaft coupled to a pinion meshing with a rack, and a steering output member coupled to the rack. The pinion is positioned at a middle portion of the rack and the output member is positioned between opposing ends of a rack. The mechanism includes a compact steering housing supporting the pinion shaft and containing the rack-and-pinion. The pinion and pinion shaft have a center axis parallel to an axis of the output member. The output member, being a steering pin and rack carrier, a gear, or a flange, is coupled to left and right tie rod assemblies and wheels for steering the vehicle to improve handling.

Abstract: A seal for use between a first duct and a second duct and, the ducts having relative motion therebetween, includes a first plurality of fingers for attachment to the first duct to be disposed about one of the first duct and the second duct, a seal land attaching to about an other of the first duct and the second duct, and a seal attaching to the seal land and in contact with the plurality of fingers wherein one of the plurality of fingers and the seal is metallic and an other of the seal land or the plurality of fingers is non-metallic.

Abstract: A sealing element for sealing a joint chamber of a constant velocity joint is disclosed. The sealing element comprises an inner collar for providing a sealing connection relative to an inner joint part of the constant velocity joint, an outer collar for providing a sealing connection relative to an outer joint part of the constant velocity joint, and a membrane portion which extends between the inner collar and the outer collar. The membrane portion between the inner collar and the outer collar is fold-free and substantially conical in shape. A joint assembly having a constant velocity joint and a sealing element is also disclosed.

Abstract: A trunnion seal assembly for joining a stationary inlet/outlet box of a ball tube mill to a rotational interior of the ball tube mill includes an outer ring component configured to be mounted to an outer wall of the stationary inlet/outlet box. An inner ring component is joined to the outer ring component substantially concentrically with the outer ring component. A flexible pad seal is configured to be joined to the outer wall of the stationary inlet/outlet box proximate outer ring component. The pad seal includes a first annular sealing surface. A mill head extension ring configured to be joined to a rotational mill head is located proximate to and substantially concentric with the inner ring component. The mill head extension includes a second annular sealing surface sealingly engaged with the first annular sealing surface of the flexible pad seal.

Abstract: A shaft seal assembly has a support body (222) and a seal (200). The support body extends from a first end (210) to a second end (212) and has a central passageway (214) for accommodating the shaft. The support body has a compliant axially intermediate portion (230), an axially out-board portion (228) outboard of the compliant intermediate portion, and an axially inboard portion (226) inboard of the intermediate portion. The in-board portion has an externally threaded portion (270) and a plurality of slots (290) through the externally threaded portion. The seal is carried by the out-board portion.

Abstract: One possible embodiment of the invention could be an oil seal for a DELCO REMY 50DN heavy duty automotive alternator comprising a top collar; a bottom collar nested within the top collar to form a ring body; an annular polymer sealing member attaches to the top collar to form a mating flange that generally extends from an inner edge of the top collar to further denote a portion of an inner passage of the oil seal, the mating flange forming clockwise orientated splines to substantially denote a set return grooves in a spaced-apart, parallel, and clockwise orientation; wherein during alternator operations, a spacing collar spinning within the inner passage brings oil from the interior of the alternator into contact with the mating flange, the splines on the mating flange then direct the oil to the return grooves, which then direct the oil back towards the interior of the alternator.

Abstract: A sealing assembly for use in a valve plate assembly includes a sealing ring and a retention spacer. The sealing ring has a radial ring section and an axial ring section, the axial ring section extends axially from the radial section and includes an outer diameter surface and a contact face, the contact face includes a contact surface and an annular slot, and the contact surface is located radially outward relative to the annular slot. The retention spacer is configured to be positioned adjacent the sealing ring.

Abstract: A low cost and simple seal installation method provides for easy installation of bonded pistons and lip seals in an automatic transmission or other industrial machine. The installation method utilizes a flexible circular disc that can be inserted in a gap between the bore and the shaft and is pressed against the seal lip to flip the seal lip to its desired orientation while the disc is rolled around the circumference of the gap to orientate the entire seal in its proper position.

Abstract: A cartridge for mounting around a movable shaft is provided. According to one exemplary embodiment, the cartridge features a cartridge housing, first and second rings having respective radial inner peripheries for establishing interfaces with a movable shaft, first and second pressure plates situated in the cartridge housing between the first and second rings, and a biasing member urging the first and second pressure plates towards the first and second rings, respectively. According to a second exemplary embodiment, the cartridge features a cartridge housing, a ring having a radial inner periphery for establishing an interface with a movable shaft, a pressure plate situated in the cartridge housing between the protruding portion and the ring, and a biasing member urging the pressure plate towards the ring. The cartridges of both embodiments may be designed to permit removal of the ring(s) from the cartridge housing without requiring removal of either the pressure plate(s) or the biasing member(s).

Abstract: A seal for a pump includes a seal housing configured to be received in a housing of the pump and a seal assembly received in the seal housing. The seal further includes a seal holder receiving at least a portion of the seal assembly, the seal holder being configured to rotate with respect to the seal housing. The seal also includes a guide coupled to the seal housing and retaining the seal holder, such that the seal holder rotates with respect to the seal housing, wherein during operation of the pump, the seal holder and a portion of the seal assembly rotate. A pump includes the pump seal, and a method for refurbishing a pump seal includes removing and replacing at least a portion of a seal assembly of the pump seal, wherein refurbishing the pump seal does not require removing a pump shaft from the pump.

Abstract: A seal with, on the one hand, a support body in the form of a carrier ring with an axial leg and, on the other hand, a sealing washer which is placed or arranged on the carrier ring and which surrounds the axial leg on the outer periphery, said carrier ring being made of a metallic material, wherein the carrier ring is made of a sheet of the HYS type.

Abstract: The present invention provides an elastomeric seal, the seal (10) having an elastomeric part (15) with a contact surface (17) for contacting, in use, a movable surface (30), the contact surface having a distribution of dimples thereon, the dimples having a depth of at least 9 ?m, an aspect ratio of at least 0.2 and an area density of from 0.05 to 0.5.

Abstract: Provided is a shaft sealing apparatus that is installed in an annular space between a rotor and a stator in a rotating machine and that divides the annular space into a low-pressure side region and a high-pressure side region in an axial direction of the rotor. The shaft sealing apparatus includes a seal body formed by stacking a plurality of thin seal pieces, which extend from the stator toward a radial inner side of the rotor, in a circumferential direction of the rotor, and lateral plates having a surface facing the axial direction and curved and extending in a circumferential direction of the annular space. The seal body is welded to the surfaces of the lateral plates which face the axial direction so that the seal body follows a curved shape of the lateral plates.

Abstract: A fluid rotary passage is provided for sealing a fluid pressure chamber between a rotatable shaft and a shaft seat. The fluid rotary passage includes a sealing ring carrier and a fitting body, rotationally fixed or in contact with one of the shaft and the shaft seat in a fluid-tight manner and radially spaced from each other to create the chamber between them. Two sealing rings are provided axially spaced from each other and each sealingly applied with one contact surface against the carrier and one against the fitting body, for sealing the chamber against the outside. The carrier and the fitting body together form two axially spaced receiving grooves for the sealing rings, which are open toward the chamber and have at least one holding protrusion at least partially securing the sealing ring disposed in the respective receiving groove against a radial dislocation from the groove toward the chamber.

Abstract: The present invention refers to a seal ring comprising: a base region (20), a diamond coating (21) applied to the base region (20), and a lubricant coating (22) applied to the diamond coating (21), which adheres to the diamond coating and fills recesses (23) of the diamond coating (21). Furthermore, the present invention refers to a mechanical seal comprising at least one seal ring according to the invention.

Abstract: A mechanical seal has a housing having a collecting space for a coolant/lubricant medium. A sleeve is disposed in the housing. A counter ring is disposed in the housing and fixedly connected to the sleeve. A slide ring is disposed in the housing and interacts with the counter ring. At least one inlet conduit communicating with the collecting space is provided. The at least one inlet conduit is positioned between a radial bottom of the housing and a radial ring segment of the sleeve.

Abstract: Disclosed are a seal assembly and a power steering apparatus having the same. The seal assembly is configured to prevent the leakage of hydraulic oil in a cylinder tube, and when excessive reverse input is transmitted from vehicle wheels, to prevent the fracture of a sealing member.

Abstract: A sealing assembly including a sealing component and a structural member. The sealing component has a first surface structure. The structural member has a second surface structure. A portion of the second surface structure is in contact with at least a portion of the first surface structure. The first surface structure and/or the second surface structure is a nano-textured surface. Interaction of the first surface structure with the second surface structure dynamically reduces friction, leakage of a fluid, and/or wear between the sealing component and the structural member.

Abstract: Embodiments of a gas turbine engine including a lift-off finger seal are provided, as are embodiments of a lift-off finger seal and embodiments of a method for the manufacture thereof. In one embodiment, the gas turbine engine includes an engine housing having low and high pressure cavities, a shaft rotatably mounted in the engine housing, and a lift-off finger seal. The lift-off finger seal includes an finger seal backing spring and an aerodynamic foil. The aerodynamic foil extends around the outer circumference of the shaft and is configured to expand radially outward in response to aerodynamic forces generated during rotation of the shaft. The finger seal backing spring resiliently biases the aerodynamic foil toward the shaft, deflects to accommodate the outward radial expansion of the aerodynamic foil, and forms an annular seal around the aerodynamic foil to impede pressurized airflow from the high to low pressure zone.

Abstract: A drill bit can include a seal which seals against a drill bit surface, the seal including a matrix seal material and a plurality of hollow spheres in the matrix seal material. Another drill bit can include a seal with a matrix seal material, spheres being more dense in a portion of the matrix seal material as compared to in the matrix seal material outside of the portion, and the portion of the matrix seal material being in dynamic sealing contact with a drill bit surface during operation. A drill bit can include a seal between a cone and a journal, the seal comprising a matrix seal material and a plurality of spheres in the matrix seal material, the matrix seal material comprising nitrile.

Abstract: Provided is a seal ring that has low-leakage characteristics and low-friction characteristics and can improve the drive loss of the automatic transmission of an automobile to thereby contribute to an improvement in the fuel consumption of the automobile. The seal ring is attached to a shaft groove formed on the outer peripheral surface of a shaft. A plurality of peripherally spaced recessed sections are formed on at least the inner peripheral side of a contact side-surface. Inner walls are provided on the inner peripheral side of the recessed sections, and oil introduction openings that open on an inner peripheral surface are provided on the inner peripheral side of the recessed sections. The inner walls may be provided on opposite peripheral sides of the recessed sections but may be provided only on the rear side in the rotation direction.

Abstract: A sealing device for sealing a first side against a second side of a machine part, wherein the sealing device has a sealing element which contacts a counter element. At least a part of the sealing element and/or at least a part of the counter element is coated with a layer consisting of or containing fullerene-like carbon nitride (FL—CNx), wherein an inter-layer of chromium (Cr) or aluminium (Al) or molybdenum (Mo) or titanium (Ti) or tungsten (W) or a diamond-like coating (DLC) or a metal-mix diamond-like coating (Me-DLC) is arranged between the surface of the sealing element and the layer consisting of or containing fullerene-like carbon nitride and/or between the surface of the counter element and the layer consisting of or containing fullerene-like carbon nitride.

Abstract: A maintenance and emergency run secondary seal mountable to a rotatable shaft is described. The seal includes a housing; a sealing ring having a double-tapered receiving channel located between two exterior surfaces and an interior wear surface; a lantern ring having a double-tapered profile for enabling engagement within the receiving channel of the sealing ring to form an air chamber between the sealing ring and the lantern ring; and an arrangement for directing and controlling pressurized air to the air chamber. The operating positions for the sealing ring are: where the sealing ring is spaced from the shaft, where a portion of the interior wear surface of the sealing ring is closed-in on the shaft to enable an emergency run secondary seal to permit shaft rotation and where the sealing ring is in full contact with the shaft to enable a static seal.

Abstract: The propensity for gas leakage around a shaft, which connects volumes of differing pressures, in, e.g., a turbocharger is minimized in a simple cost-effective manner. The addition of a complementary pair of frusto-spherical, conical, or other profiles to the interface of the shaft and its bearing maintain concentricity of the shaft in its bore and thus improve the efficacy of existing sealing protocols.

Abstract: A seal for sealing a space between a shaft and a housing, includes a base member coupled with one of the housing and the shaft and a generally annular, elastomeric sealing member sealingly contactable with the other one of the housing and the shaft. The sealing member is coupled with the base member such that the sealing member is circumferentially strained to reduce friction between the sealing member and the other one of the housing and the shaft. The seal assembly is preferably formed by providing a base member having a generally annular carrier portion and a generally annular, elastomeric sealing member, coupling the sealing member with the annular portion of the base member, and plastically deforming at least a section of the base member carrier portion such that the sealing member is circumferentially strained.

Abstract: A jointless braided sealing ring as well as a method and a special machine for producing such a sealing ring are disclosed. The braided sealing ring adopts a multi-layers braided structure comprising a number of continuously sleeved ring layers arranged from inside to outside. The innermost braided ring layer is used as a core. The tail end of the first braided ring layer (1) is sleeved on the starting end of the first braided ring layer (1) and serves as the starting end of the second braided ring layer (2) to implement continuously braiding without any interruption. The second braided ring layer (2) is sleeved on the first braided ring layer (1) and the third braided ring layer (3) is sleeved on the second braided ring layer (2). The Nth braided ring layer (4) is sleeved on the (N?1)th braided ring layer (5). N braided ring layers have (N?1) continuous intact braided ring layers. The tail end (8) of the outermost braided ring layer is superposed with the starting end (7) of the innermost braided ring layer.

Abstract: A piston ring assembly includes a ring or rail defining a seal surface configured to seal against a piston bore surface of an engine. The seal surface defines a radially outer periphery. The oil control rail assembly further includes two positioning rings. A first one of the positioning rings is disposed axially above the oil control rail and a second one of the positioning rings is disposed axially below the oil control rail. Each of the positioning rings defines an outermost periphery of the positioning ring that is disposed radially inward with respect to the seal surface of the oil control rail. The outermost peripheries of the positioning rings thus generally do not contact a bore surface that is contacted by the seal surface of the oil control rail.

Abstract: A seal between an outer part and a circular cylindrical inner part, which is accommodated within the outer part at least in sections, includes a sealing ring having a groove portion and consisting of high-temperature-resistant thermoplastic plastics material. The outer part and the inner part are movable in a linear manner in relation to each other. A circumferential groove, into which the groove portion of the sealing ring is inserted at least in sections, is realized on an inner circumference of the outer part or on an outer circumference of the inner part. The sealing ring is in one part, and the groove is closed.

Abstract: An exemplary turbomachine secondary ring seal assembly includes a base portion that extends circumferentially about an axis and a protrusion extending from the base portion toward the axis. The protrusion has a sealing surface that contacts a support to limit movement of a fluid from a first axial side of the base portion to a second opposite axial side of the base portion. The sealing surface faces the axis. The sealing surface may also face in a radial direction.

Abstract: To reduce an axial installation width of a sealing device 1 comprising an oil seal 5 mounted in an inner periphery of a shaft hole 3 of a housing 2 and slidably contacted with an outer periphery of a rotating shaft 4 and a magnetic encoder 6 mounted on the rotating shaft 4 so as to be rotated therewith, as well as to improve sealing performance, the oil seal 5 is provided with a metal ring 7 having at least a part thereof disposed at an inner periphery side of the cylindrical portion 10b in the magnetic encoder 6 so that the oil seal 5 and magnetic encoder 6 are overlapped with each other in an axial direction, and the oil seal 5 is provided with a seal lip 8e formed with a rubber-like elastic body and disposed towards an interior side A of a housing.

Abstract: Described are techniques for use with a sealing member forming a static seal or a dynamic seal at a surface thereof. The sealing member has at least the surface thereof formed from one of Vespel SCP 5000 or Vespel SCP 50094.

Abstract: A turbomachine seal assembly includes a base member, a rocker arm pivotally mounted to the base member, and a seal element fixedly mounted to the rocker arm. The seal element is configured and disposed to selectively shift relative to the base member.

Abstract: In order to provide a seal for sealing a sealing gap between a first component and a second component, comprising a seal body with at least one sealing portion and at least one spring element for biasing the sealing portion against at least one of the components to be sealed, the spring element being at least partially arranged in a receiving space of the seal body, which seal is simply constructed and easily producible and nevertheless ensures a secure retention of the spring element in the receiving space, it is proposed that the spring element has at least one claw element, by means of which the spring element is interlocked with the seal body.

Abstract: The pump (10) prevents fluid leaks when a bellows (12) ruptures in a pump incorporating a flexible bellows (12) as a primary seal and prevents fluid from leaking out of a pump (10) or the pump (10) ingesting air in the event of a bellows rupture. This is done by adding an additional seal (22) after the bellows and a large volume backup chamber 24.

Abstract: According to one aspect of the invention, a seal assembly includes a mounting structure coupled to an inner static structure in a turbine. Further, the seal assembly includes a brush seal member coupled to the mounting structure, wherein the brush seal member includes a first end that is in sealing contact with a rotor and a second end in sealing contact with a stator and wherein the brush seal member includes a plurality of bristles.

Abstract: A sealing system that self-adjusts according to atmospheric conditions is disclosed. The sealing system includes an annular seal casing mounted on a stationary component, the annular seal casing positioned such that a rotating component extends therethrough, at least one annular sealing agent configured to radially move with respect to the rotating component between a sealed position and an unsealed position, at least one sensor for gathering atmospheric data, and at least one micro-mechanism configured to control the at least one annular sealing agent based on the atmospheric data.

Abstract: The invention relates to an annular, endless sealing ring having a part (6) made of elastomeric material, perforated with two diametrically opposite through holes (9) and a part (7) made of ceramic exposed on the inner circumferential surface.

Abstract: The invention relates to a disc brake having at least one brake disc, at least one friction lining and at least one actuating apparatus, wherein the actuating apparatus comprises at least one actuating piston which is movably housed in a housing of the disc brake and a sealing element having a first sealing surface configured to produce a sealing contact to a contact surface of the housing, and a second sealing surface configured to produce a sealing contact to a contact surface of the actuating piston in order to seal the actuating piston to the housing, wherein at least one of the sealing surfaces comprises a friction surface configured so that it maintains the sealing contact to the contact surface in the case of a movement of the actuating piston relative to the housing and furthermore allows a frictionless movement of the actuating piston relative to the housing.

Abstract: A static sealing device for a wheel hub assembly, an inner ring of which is operatively associated with a constant velocity joint, an outer ring coupled with the wheel hub, including a first sealing assembly arranged between the inner ring and an outer ring of the wheel hub for protecting respective rolling bodies, and a second sealing assembly supported by the inner ring, arranged straddling the wheel hub and the outer ring; wherein the first sealing assembly includes a shield anchored to the inner ring of the bearing and provided, on a first side of the joint, with a flange portion carrying an annular signal generating element towards the joint which leaves an annular radially inner area of the flange portion uncovered, defining an annular seat between it and the inner ring in which an edge radially folded on the outside of a tubular core of the second sealing assembly.

Abstract: The invention relates to dynamical sealing systems for rotating pairs and can be used, in particular, for sealing of the bearing supports of cutter drill bits. The sealing (packing) ring has the cross-sectional cut of four-cornered shape, formed with the outer and inner cylindrical surfaces, including the side (end) surfaces, which define the ring height. The sufficient improvement of the efficiency and the service life of the sealing system are ensured, due to closed (dead-end) feed and drain lubricant grooves being provided on the working, sealing surface, and their inlet and outlet openings are positioned on the ring opposite surfaces bordering on the working surface. The outer, inner or end surface of the ring can serve as the working, sealing surface.

Abstract: Disclosed herein is an apparatus for an immersible pump. The apparatus can include a shaft for communicating with a motor. The shaft includes a first region having a first diameter, a second region having a second diameter that is less than the first diameter, and a tapering region between the two regions. A sleeve can be provided to receive the shaft. A sealing device includes a receiving area in which the tapering region is at least partially positionable to form a seal, and an abutment that is configured to form a seal with the sleeve and that is responsive to a force directed from the sleeve to enhance the seal with the tapering region. In some embodiments, the sealing device is provided with a circumferential outer wall for centering the sleeve about the shaft and/or for aligning the force with the abutment.

Abstract: A self-sealing flexible seal includes a seal component A and a seal component B, each being hollow ball-like. In the portion of two pole parts of the each seal component, there is one annular opening per pole. The form of two seal components is similar figures, and two seal components are formed from a flexible material. The seal component A is arranged on the outside of the seal component B. The seal component A and the seal component B are arranged by a two-sheet pile, and are arranged in the state where it moreover contacted.