A sealing system for sealing shafts against liquid media, for example propeller shafts, impeller shafts, rudder stocks of ships and the like. Opposing corner regions of the sealing system that are located radially inside of a clamping space, for clamping at least one sealing ring, are formed by inclined run-on surfaces that diverge when viewed radially from the inside towards the outside. For accommodation in the clamping space, a clamping section of the sealing ring comprises two opposite edge regions that are formed by inclined surfaces that correspond to the run-on surfaces.
F16J 15/322 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p. ex. joints toriques avec au moins une lèvre supportée dans une direction perpendiculaire aux surfaces
F16J 15/3216 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p. ex. joints toriques avec au moins une lèvre supportée dans une direction parallèle aux surfaces
F16J 15/3244 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p. ex. joints toriques avec pompage hydrodynamique
F16J 15/3276 - Montage des bagues d’étanchéité avec étanchéité statique supplémentaire entre le joint ou son armature ou son support et la surface sur laquelle il est monté
F16J 15/3212 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p. ex. joints toriques avec au moins une lèvre pourvue d’éléments de tension, p. ex. de bagues élastiques avec des ressorts métalliques
F16J 15/324 - Agencements pour graissage ou refroidissement du joint d’étanchéité lui-même
F16J 15/3252 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p. ex. joints toriques pourvus d’armatures ou de supports avec armatures ou supports rigides
Disclosed is a sealing system for sealing shafts against liquid media, for example propeller shafts, impeller shafts, rudder stocks of ships and the like, with the opposing corner regions of said sealing system that are located radially inside, of a clamping space for clamping at least one sealing ring, being formed by inclined run-on surfaces that diverge when viewed radially from the inside towards the outside, wherein for accommodation in the clamping space a clamping section of the sealing ring comprises two opposite edge regions that are formed by inclined surfaces that correspond to the run-on surfaces, and a sealing ring for such a sealing system.
Disclosed is a sealing system for sealing shafts against liquid media, for example propeller shafts, impeller shafts, rudder stocks of ships and the like, with the opposing corner regions of said sealing system that are located radially inside, of a clamping space for clamping at least one sealing ring, being formed by inclined run-on surfaces that diverge when viewed radially from the inside towards the outside, wherein for accommodation in the clamping space a clamping section of the sealing ring comprises two opposite edge regions that are formed by inclined surfaces that correspond to the run-on surfaces, and a sealing ring for such a sealing system.
A passenger automotive vehicle wheel bearing assembly having improved impact Brinell resistance is provided. Due to a controlled gap between a rotating component and a non-rotating component or a vehicle suspension structure, the non-rotating component or the vehicle suspension structure is permitted to share impact loads caused by a sufficient radial or side impact (such as a pothole or curb impact) to the rotating component, thus preventing excessive loads from being transmitted to rolling elements, and providing greater resistance against Brinell impact damage that would generate a noise and/or vibration condition in the bearing assembly. Wheel bearing assemblies according to the invention provide increased impact Brinell resistance while avoiding excessive contact between the rotating component and the non-rotating component or the vehicle suspension structure during extreme cornering maneuvers.
F16C 19/50 - Autres types de roulements à billes ou à rouleaux
F16C 33/58 - Chemins de roulementBagues de roulement
F16C 39/02 - Allégement de la charge appliquée aux paliers par moyens mécaniques
F16C 19/52 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec dispositifs affectés par des conditions anormales ou indésirables
F16C 19/18 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges à la fois radiales et axiales avec plusieurs rangées de billes
F16C 19/38 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à rouleaux essentiellement du même gabarit, disposés dans une ou plusieurs rangées circulaires, p. ex. roulements à aiguilles pour charges à la fois axiales et radiales avec plusieurs rangées de rouleaux
F16C 19/49 - Paliers avec roulements à la fois à billes et à rouleaux
F16C 21/00 - Combinaisons de paliers à contact lisse avec des roulements à billes ou à rouleaux pour mouvement de rotation exclusivement
A double bearing assembly is for supporting a rotatable shaft within a housing and includes two axially-spaced inner races mounted on the shaft. Each inner race has an outer race surface with a radially-outwardly extending shoulder section adjacent one axial end and are arranged such that the two shoulder surfaces are facing. Two axially-spaced outer races are disposed within the housing, each about one of the inner races. Each outer race has an inner race surface with a radially-inwardly extending shoulder section adjacent one end and are arranged such that the two shoulder surfaces face away from each other. A set of rolling element are disposed between each pair of races. At least one biasing member biases one of the outer races axially to retain the associated rolling elements sandwiched between the inner shoulder surface of the outer race and the outer shoulder surface of the corresponding inner race.
A unitized radial fluid seal includes a shell having a first elastomeric seal body affixed thereto and defining a primary seal lip. A sleeve includes a substantially cylindrical, axially- extending sealing flange and a protective flange extending substantially radially from the axially- extending sealing flange. A spring radially urges the primary seal lip into sealing contact with a sealing surface of the axially-extending sealing flange. A second elastomeric seal body is affixed to the sleeve and includes a resiliently-elastic angled lip extending from a terminal end of the axially-extending sealing flange opposite of the radially-extending protective flange. The sealing surface and an axially-outward facing surface of the angled lip define an angle (a) that is between about 130-170°. The primary seal lip is axially retained between the angled lip and the radially-extending protective flange.
A fluid seal assembly is disposeable between an outer surface, i.e. engine block or any other part that requires application of the assembly and a rotatable member, such as, for example a shaft, wherein the assembly circumscribes the shaft and lubricated the shaft and the same rotates around the axis. The assembly includes at least three members: a casing unit, a sealing ring unit, and a liner. The assembly eliminates problems associated with prior art designs such as static leakage of oil, clogging up the spirals with carbonized oil that negatively impact lifecycle of the fluid seals.
F16J 15/34 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par bague glissante pressée contre la face plus ou moins radiale d'une des deux parties
A seal assembly includes an annular body coupled with an inner member or an outer member and has inner and outer circumferential surfaces and first and second annular sealing portions spaced along a centerline. The two sealing portions either extend radially outwardly from the outer surface and have an outside diameter, with the first portion diameter being greater than the second portion diameter, or extend radially inwardly from the body inner surface and have an inside diameter, with the first portion diameter being lesser than the second portion diameter. The seal body is radially deflectable such that the first sealing portion is engaged with one of the outer and inner members, and the second sealing portion is spaced from the member, when the body is exposed to pressure lesser than a predetermined value and both sealing portions are engaged with the member at pressures above the value.
A seal assembly is provided for sealing a space between a housing and a shaft, the housing having a bore with centerline and the shaft being disposed within the bore and rotatable about a central axis. The seal assembly includes an annular rotary seal member coupled with the shaft and having a radial rotary sealing surface. An annular static seal member is coupled with the housing, disposed about the shaft and has a radial static sealing surface disposed against the rotary sealing surface so as to prevent passage of substances between the two sealing surfaces. The rotary sealing surface is slideable against the static sealing surface as the shaft rotates about the axis and the static member is movable with respect to the housing such that the rotary and static sealing surfaces are substantially juxtaposed when the shaft axis defines an acute angle with respect to the housing centerline.
An apparatus includes an annular rotor that rotates about a rotational axis. A magnetic bearing system influences the position of the annular rotor in three-dimensional space and includes at least three actuators, wherein at least one actuator generates a force for lifting the annular rotor in a vertical direction, at least one actuator influences the position of the annular rotor in the radial direction of the annular rotor and at least assists in maintaining an annular gap between at least one non-magnetic bearing and the annular rotor during operation and at least one actuator influences the position of the annular rotor in an axial direction of the annular rotor. At least one radiation source may be fixedly mounted on the annular rotor.
A bearing assembly is for a rotary drill, the drill including a base with a shaft and a bit. The bearing assembly includes a bearing having a central axis and including an inner member disposeable on the shaft and an outer member disposed about the inner member. The outer member is angularly displaceable about the axis with respect to the inner member and having an outer circumferential surface and a recess extending generally radially inwardly from the outer surface. At least one and preferably a plurality of retainer members are each disposed at least partially within the bearing outer member recess and is configured to engage with the bit so as to rotatably couple the bit with the shaft. Preferably, each retainer member includes a generally spherical ball rollable through a passage and into the bearing recess during installation into the recess.
E21B 10/34 - Trépans avec une partie pilote, c.-à-d. trépans comportant un organe coupant piloteTrépans pour élargir le trou de forage, p. ex. alésoirs à organes coupants expansibles du type à organe coupant roulant
A seal assembly is for sealing a space between a housing and a shaft rotatable about a central axis. The seal assembly includes a seal body connectable with the housing and having an inner circumferential sealing surface. The sealing surface has opposing axial ends and is slidably contactable with the shaft outer surface to define a sealing interface. An annular biasing member, preferably a garter spring, is disposed about a portion of the seal body and has a centerline. The biasing member exerts a biasing force directed radially inwardly toward the centerline, such that the seal exerts a contact pressure on the shaft. Further, the biasing member is angularly positioned on the seal body such that the contact pressure extends axially along the shaft axis to direct substances entering the sealing interface toward a proximal axial end of the sealing surface when the shaft rotates about the central axis.
A fluid seal assembly of the present invention is disposed between an outer surface, i.e. engine block or any other part that requires application of the assembly and a rotatable member, such as, for example a shaft, wherein the assembly circumscribes the shaft and lubricated the shaft and the same rotates around the axis. The assembly includes at least three members: a casing unit, a sealing ring unit, and a collar. The assembly eliminates problems associated with prior art designs such as static leakage of oil, clogging up the spirals with carbonized oil that negatively impact lifecycle of the fluid seals.
F16J 15/34 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par bague glissante pressée contre la face plus ou moins radiale d'une des deux parties
A seal is for sealing a clearance space between first and second members disposed generally coaxially about an axis, one of the two members being linearly displaceable generally along the axis relative to the other one of the two members. The seal includes a generally annular body coupled with the first member, the body having a centerline generally coaxial with the central axis, a sealing surface extending circumferentially about the axis, and a plurality of projections extending generally radially from the sealing surface and into contact with the second member. The projections are spaced circumferentially about the axis so as to define a separate lubrication gap between each pair of adjacent projections. The body is configured to radially deflect when exposed to at least a predetermined fluid pressure such that recessed sections of the sealing surface extending between the projections contact the second member to substantially obstruct the clearance space.
A kit for testing grease includes components for testing consistency, oil bleed characteristic and contamination. Consistency of the grease is tested by compressing a sample of the grease between two surfaces (e.g., glass plates), measuring the extent of spread, and comparing the measured spread to a calibrated reference. Oil bleed characteristic is tested by placing a quantity of the used grease on a test medium, heating the test sample, measuring a dimension of the grease quantity on the heated test sample, and determining the bleed characteristic of the used grease by comparing the dimension of the grease quantity to a reference. A contamination test may be performed by further compressing the consistency sample and inspecting the sample both by the naked eye and with a microscope.
A wear sleeve assembly for a seal on a shaft includes a sleeve having inner and outer circumferential surfaces, the outer surface being engageable by a seal inner surface at a contact location to prevent fluid flow between the seal inner surface and the sleeve outer surface. The sleeve inner surface defines a bore sized to receive a portion of the shaft with clearance. A coupler is configured to connect the sleeve with the shaft and provides a clearance space between the sleeve inner surface and a shaft outer surface at about the seal contact location. Thereby, the sleeve is adjustably positionable relative to the shaft so that the sleeve remains generally centered within the seal as the sleeve and shaft rotate about the axis. The coupler preferably includes an annular body with first and second axially-spaced, relatively displaceable sections for displacing the sleeve relative to the shaft.
F16J 15/50 - Joints d'étanchéité entre organes mobiles l'un par rapport à l'autre, par étanchéité sans surfaces mobiles l'une par rapport à l'autre, p. ex. des garnitures étanches aux fluides pour transmettre un mouvement au travers d'une paroi
An elastomer-containing rod end isolator. The isolator includes a handle for connection to a load and inner and outer members. The outer member is a pocket and the inner member is spherical or nearly so. The pocket and the inner member are concentric and the inner member has two continuous exterior legs extending in a circular path. An elastomer fills most of the space between members.
A seal assembly is for a shaft rotatable about an axis, having an outer circumferential surface and being disposed within a housing having an inner circumferential surface defining a bore. The seal assembly includes an annular base member having an outer circumferential surface and a central opening for receiving the shaft with clearance, the base member being sized such that the base outer surface is engageable with the housing inner surface to form an interference fit to retain the seal assembly. An annular seal member is disposed on the base member and has an inner circumferential sealing surface for sealing against the shaft outer surface and an outer circumferential sealing surface for sealing against the housing inner surface. A support member includes a one-piece annular body, is disposed generally between the seal member sealing surface and a portion of the base member, and prevents axial deflection of the sealing member.
A bearing assembly is for a mechanism including a housing and a rotatable shaft disposed within the housing. The bearing assembly includes a sleeve disposeable within the housing and having an inner circumferential surface defining a bore and a radial surface extending radially inwardly from the inner surface. A bearing is disposed within the bore and includes inner and outer races and rolling elements disposed between the races, the inner race being coupleable with the shaft such that the shaft and the inner race rotate as a single unit. Further, a biasing member biases the outer race generally against the sleeve radial surface or a housing radial surface to prevent axial displacement of the outer race during shaft rotation. Preferably, a retainer couples the biasing member with the outer race to retain the bearing and the biasing member within the bore when the assembly is separate from the housing.
F16C 19/02 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires
A lubrication system for lubricating at least one bearing includes a sensor configured to sense a condition of the at least one bearing, such as vibration or temperature, and a dispenser configured to deliver lubricant to the bearing. A control is coupled with the sensor and configured to operate the dispenser such that lubricant is delivered to the bearing when the condition has a value of either at least a predetermined value or lesser than a predetermined value. Preferably, the control is further configured to operate the dispenser to periodically deliver a predetermined quantity of the lubricant to the bearing. Further, the control is preferably further configured to provide an alarm when the value of the condition is either at least the predetermined value for a predetermined period of time or lesser than the predetermined value for a predetermined period of time.
F16C 5/00 - Crosses de biellesStructure des pieds de bielles ou des liaisons des tiges de piston faisant corps avec les crosses
F16C 33/10 - Structures relatives à la lubrification
F16C 33/16 - Surface de glissement principalement constituée de graphite
F01M 9/00 - Dispositifs de lubrification ayant des caractéristiques importantes non couvertes dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
A portable monitoring device includes a hand-held housing, a processing circuit disposed within the housing, and a primary sensor extending outwardly from the housing, coupled with the processing circuit, and configured to transmit input to the processing circuit. A rechargeable battery is disposed within the housing and is configured to provide electric power to at least the processing circuit. A connector is coupled with the processing circuit and configured to operatively couple the battery with a battery charger and to alternatively couple the processing circuit with at least one of a secondary sensor and a calibration device. Preferably, a temperature sensor is disposed proximal to the primary sensor and configured to transmit temperature input to the processing circuit, and a switch disposed within the housing is electrically connected with the processing circuit, the connector and the primary sensor and couples the connector with the battery charger or the processing circuit.
G01H 17/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores non prévue dans les autres groupes de la présente sous-classe
22.
PORTABLE SYSTEM FOR IMMOTIVE MULTIPHASIC MOTIVE FORCE ELECTRICAL MACHINE TESTING
A portable test device (1) can be configured as a rotor conductivity anomaly tester, a magnetic core anomaly tester, or a rotational eccentricity fault tester for a multiphasic motive force electrical machine (6) by providing an immotive multiphasic motive force electrical machine test signal from a plurality of multiphasic motive force electrical machine signal generators (4) through a detachable electrical power connectivity (2) and by having a multiphasic motive force electrical machine fault analyzer (16) that can sense responses and discern the existence of a fault. Control of the test signal can be accomplished by an immotive multiphasic test signal controller (3) that varies frequency and achieves incremental movement or to achieve stator magnetization plane angle changes or movement that tests angular relationships.
G01R 31/02 - Essai des appareils, des lignes ou des composants électriques pour y déceler la présence de courts-circuits, de discontinuités, de fuites ou de connexions incorrectes de lignes
A seal assembly having a seal bumper wall with a series of pyramid shaped formations lying on the bumper wall. The formations cause their apex portion to wear down rapidly in use, while the remainder of the pyramids remain and act as slingers and/or produce a convection effect to reduce temperature along the sealed area. In another embodiment, there are two each pyramid shaped formations located on each of several thrust bumpers, which are held in position by a retainer.
F16J 15/34 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par bague glissante pressée contre la face plus ou moins radiale d'une des deux parties
24.
MECHANICAL COMPONENT WITH A COATED RUNNING SURFACE
A mechanical component having enhanced tribological characteristics includes a body having at least one surface and a coating layer disposed on the body surface and having an outer surface providing at least a section of a running surface. The layer is formed by directing relatively high velocity particles of a first material toward the body surface such that at least a portion of the first material particles impact the body surface and embed within the body.
A bearing is for a mooring turret for anchoring a vessel or work platform to a seafloor and includes an annular rail having a central pivot axis and inner and outer circumferential surfaces, the rail being connectable with the vessel or the turret upper end. A plurality of inner rollers are rotatable about separate axes extending parallel to the rail axis and are disposed against the rail inner surface and a plurality of outer rollers are rotatable about separate axes extending parallel to the rail axis and are disposed against the rail outer surface. A carriage is connectable with the other one of the vessel and turret, is connected with the rollers, and retains the rollers engaged with the rail. Thereby, the inner rollers roll along the rail inner surface and the outer rollers roll along the rail outer surface as the vessel or platform pivots about the pivot axis.
A bearing assembly having improved impact Brinell resistance is provided. Due to a controlled gap between a rotating component and a non-rotating component or a vehicle suspension structure, the non-rotating component or the vehicle suspension structure is permitted to share impact loads caused by a sufficient side impact to the rotating component, thus preventing excessive loads from being transmitted to rolling elements, and providing greater resistance against Brinell impact damage that would generate a noise and/or vibration condition in the bearing assembly. The width of the controlled gap and of the area of potential contact between the rotating component and the vehicle suspension structure or the non-rotating component are optimized to increase impact Brinell resistance while avoiding excessive contact between the rotating component and the non-rotating component or the vehicle suspension structure during extreme cornering maneuvers.
F16C 33/58 - Chemins de roulementBagues de roulement
F16C 39/02 - Allégement de la charge appliquée aux paliers par moyens mécaniques
F16C 19/52 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec dispositifs affectés par des conditions anormales ou indésirables
F16C 19/50 - Autres types de roulements à billes ou à rouleaux
F16C 19/18 - Paliers à contact de roulement pour mouvement de rotation exclusivement avec roulements à billes essentiellement du même calibre, en une ou plusieurs rangées circulaires pour charges à la fois radiales et axiales avec plusieurs rangées de billes
An earth bit includes a cone rotatably mounted to a shaft with a hub unit and thrust roller bearings. The hub unit is moveable between mounted and unmounted positions on the shaft, as a single unit, in a repeatable manner. The hub unit includes a pair of roller bearings positioned between inner and outer races. The outer race includes a recess extending around its outer periphery. A sealing structure is slidingly engaged with the recess to provide a seal between the cone and shaft.
An air drying system using plural air drying units. The system includes moist air and dry air plenums and a pair of substantially identical air drying canisters. Each unit has a single lower bases and a single, flanged mounting bracket. The moist air plenum is connected to an air inlet in the lower base, and the dry air plenum is connected to a dry air outlet in the lower base.
B01D 53/02 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p. ex. chromatographie préparatoire en phase gazeuse
An oil seal having the usual lips for retaining oil and a guide member made of a variety of relatively stiff or rigid materials. The guide member is made slightly larger than the smallest diameter of the seal member when the seal rests on the shaft. The seal member can have the guide member on either the air side or the oil side of the seal. The disclosure also relates to a shipping plug, which is inserted into the seal and retains the oil in place during shipping when the seal is installed but a shaft is not installed.
A drain bolt which includes a threaded shank portion, a driving head, and an enlarged primary flange and a pair of secondary circular flanges of reduced diameter with respect to said enlarged flange, said reduced diameter flanges holding a captive O-ring between them. The seal is between a cylindrical counterbore and the O-ring, and is completely independent of the force with which the drain bolt is installed. In other embodiments, there is a drain bolt with a captured washer, allowing limited movement of the washer, and in another embodiment, the drain bolt is coined just below the O-ring.
F16N 33/00 - Dispositions mécaniques pour le nettoyage des dispositifs de lubrificationÉgouttoirs ou autres dispositifs particuliers pour débarrasser les parties de machines du lubrifiant
An elastomer-containing rod end isolator. The isolator includes a handle for connection to a load and inner and outer members. The outer member is a pocket and the inner member is spherical or nearly so. The pocket and the inner member are concentric and the inner member has two continuous exterior legs extending in a circular path. An elastomer fills most of the space between members.
An elastomer-containing rod end isolator. The isolator includes a handle for connection to a load and inner and outer members. The outer member is a pocket and the inner member is spherical or nearly so. The pocket and the inner member are concentric and the inner member has two continuous exterior legs extending in a circular path. An elastomer fills most of the space between members.
B64D 11/00 - Arrangements pour passagers ou équipageInstallations de postes de pilotage non prévues ailleurs
F16C 7/04 - Bielles ou organes de liaisons similaires pivotant aux deux extrémitésStructure des pieds de bielles avec une pièce intermédiaire élastique ou un coussinet à fluide
F16F 7/00 - Amortisseurs de vibrationsAmortisseurs de chocs
F16F 7/12 - Amortisseurs de vibrationsAmortisseurs de chocs utilisant une déformation plastique de ses organes
F16F 9/30 - Ressorts, amortisseurs de vibrations, amortisseurs de chocs ou amortisseurs de mouvement de structure similaire, utilisant un fluide ou moyen équivalent comme agent d'amortissement avec un matériau solide ou semi-solide, p. ex. des masses pâteuses, comme agent d'amortissement
A seal assembly having a seal bumper wall with a series of pyramid shaped formations lying on the bumper wall. The formations cause their apex portion to wear down rapidly in use, while the remainder of the pyramids remain and act as slingers and/or produce a convection effect to reduce temperature along the sealed area. In another embodiment, there are two each pyramid shaped formations located on each of several thrust bumpers, which are held in position by a retainer.
A composite drain plug for an automobile engine. The drain plug is made up of a hollow metal sleeve that is flanged at one end and closed at the other end. There is a core portion filling the hollow sleeve and having a head portion and a stub flange adjacent the flanged end of the sleeve. A circumferential sealing bead is bonded to the stub flange. The core portion is a glass-filled polymer and the sealing bead is made from a material which includes a cross-linked elastomer dispersed in a thermoplastic carrier.
F16B 35/00 - Boulons filetésBoulons d'ancrageGoujons filetésVisVis de pression
B03C 1/03 - Séparateurs magnétiques à gradient de champ élevé avec une matrice ou des éléments de matrice à circulation rotatifs, p. ex. du type carrousel
A large diameter seal having a band of elastic material on its outer diameter to insure a complete and effective sealing in the counterbore and a method for manufacturing this large diameter seal having elastomeric material on its outer diameter.
An end face seal having two thin, opposed faces of a composite PDC/tungsten carbide or like material for example of a thickness of from about 2 to 5 mm to about 10 to 15 mm, brazed or adhesively adhered by an epoxy resin to a substrate of tungsten carbide or silicon carbide/nitride formed in a ring shape. Thereafter, the PDC layer is finish lapped to a flatness of about 1 to about 10 helium lightbands, with a rough lapping to 3 or 4 helium lightbands, and a finish lapping of about 1 helium lightband.
F16J 15/34 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par bague glissante pressée contre la face plus ou moins radiale d'une des deux parties
37.
Composite seals, seal structures and related methods
According to one embodiment, a composite seal may include a first, substantially annular seal element having an upper body portion, a neck portion, and an axial protrusion. The upper body portion includes opposing inclined surfaces extending toward the neck portion defining a first angle. The axial protrusion includes opposing inclined surfaces extending toward an axial end of the axial protrusion defining a second angle, wherein the first angle and the second angle are substantially similar. The composite seal may further include a second, substantially annular seal element having a mouth portion, a neck portion and a recess portion, wherein the axial protrusion is configured to be complementarily engaged with the recess portion in an interlocking manner.
A sealing system for sealing high liquid pressure and containing a wiper lip (68 or 69a and 68a) in either of two forms. The light pressure seal includes a seal casing, a seal body (40) including a lip seal (54), a snap ring (66) and a plastic back-up ring (42), and the wiper lip seals on either a radial (68a) or an axial surface (69a). The casing may have radial (32) and axial (30) flanges or a radial flange only. The space (85) between the two seals may be filled with grease.
A fluid seal assembly including a specialized protective filter unit which is adapted for use with a fluid seal, as well as to the combination of a protective filter unit with an associated seal unit to form a complete seal assembly. The seal provides increased reliability, particularly in those specialized seals wherein high internal pressure and the possibility of particulate contaminants are present.
A controlled leakage seal assembly (18) having a first stationary portion (20) adapted to be connected in substantially fluid-tight relation to a source of drilling fluid and a second portion adapted to be connected in substantially fluid tight relation to a rotary portion (22) including a washpipe (70). The seal includes a first housing (26) and a stack of radially inwardly extending, spaced apart annular stators (64a, 64b), and a second seal housing (22) and stack of spaced apart radially outwardly extending annular rotors (78a, 78b) interleaved with one another. The seal assembly, a cartridge, permits the first and second housings to rotate relative to each other in substantially fluid-tight relation except for drilling fluid entering an outlet region at greatly reduced pressure. In a preferred embodiment, the seal is held by a sleeve that permits the cartridge to be removed and replaced while the fluid connections to the sleeve remains.
E21B 19/00 - Manipulation de tiges, tubages, tubes ou autre objets analogues à l'extérieur du trou de forage, p. ex. dans la tour de forageAppareils pour faire avancer les tiges ou les câbles
b) are the only portions of the flange (56) in contact with the vehicle when the support member (14) is secured to the vehicle, reducing the contact area between the flange (56) and the vehicle, and reducing impact forces transferred to the bearings. A portion of the flange (56) may act as a spring member, enabling the flange (56) to flex in response to an impact load experienced by the wheel bearing assembly (11). This enables the flange (56) to absorb a portion of the side impact load, thereby attenuating the portion of the load transmitted to the bearings. A wheel bearing assembly (10) incorporating the support member (14) is also disclosed.
An elastomeric bearing having inner and outer races and a novel core. The novel core has a plurality of resilient laminae and a plurality of non-resilient laminae interleaved with one another. Each of the lamina has an axially inner cylindrical portion of a given diameter, an axially outer cylindrical portion of a greater diameter than the given diameter and, lying between the inner and outer laminae, an angled portion joining the axially inner and outer laminae to each other. The laminae are continuous and of one piece. In this way, the elastomeric bearing has comparatively small resistance to torsional movement, but great resistance to both radial and axial movement.
A heavy duty composite oil seal with an outer cup and a plastic inner cup. The outer cup includes a major diameter mounting flange portion terminating in a curl, a minor diameter wear sleeve portion, and a transition portion joining the major and minor diameter portions. There is an elastomeric seal body and an embedded stiffener, with the elastomeric seal body having a sealing lip contacting the inner axial surface of the wear sleeve portion. There is a plastic inner cup member with an axial flange substantially co-extensive with the mounting flange and entrapped along the major diameter flange portion between the curl portion and the transition portion of the outer cup. The inner cup also has a radially extending flange that engages a radial portion of the elastomeric seal body. The plastic inner cup member has plural, evenly spaced diagonal braces extending between and joining the axial flange and the radial flange of the inner cup.
brevets
