Abstract: A gasket includes an endless loop of sealing material. The endless loop includes a first segment, a second segment, and a sinuous segment extending from the first segment to the second segment. The gasket includes fastener sections defining fastener holes. The fastener holes extends through the fastener sections. The sinuous segment is between two of the fastener holes. A lip is in each fastener hole. The lip extends from the fastener section into the fastener hole and extends around the circumference of the fastener hole. The sinuous segment retains the gasket in a groove of a cover, and the lip retains a fastener in a fastener hole of the cover.

Abstract: An air turbine drive spindle includes a rotary shaft, a bearing portion, a damper ring, a cover member, and at least one or more O rings. The bearing portion surrounds at least a portion of an outer circumferential surface of the rotary shaft. The damper ring is disposed at the outer circumferential side relative to the bearing portion with a gap being interposed therebetween. The cover member is disposed at the outer circumference side relative to the damper ring with a gap being interposed therebetween, and is configured to store the rotary shaft, the bearing portion, and the damper ring. At least one or more O rings are disposed in each of the gap and the gap.

Abstract: Flanges of half bodies provided in a compressor casing are fastened by multiple bolts and a multi-hole washer shared by two or more adjacent bolts. When F is fastening force, T is a thickness of the washer, ? is a distribution angle of the fastening force, Rb is a radius of the bolt, R is a radius of a distribution range of the fastening force on a bearing surface, A is an area of the distribution range on the surface, a is an area of a distribution range of the fastening force on a mating surface of the flange, and R=Rb+T·tan ? and A=?R2 are established, F/A is lower than yield strength of each of a flange material and a multi-hole washer material, and F/a is equal to or higher than predetermined surface pressure determined based on pressure of fluid inside the casing.

Abstract: An injector has an inlet and an outlet and an armature tube having passage structure and having a distal end spaced from the outlet. The passage structure communicates with the inlet. A movable, magnetic armature is coupled to the armature tube. An electromagnetic coil is associated with a stator and with the armature. A first spring is constructed and arranged, when the coil is not activated, to bias the armature tube so that the distal end engages in a sealing manner with a first seat to limit leakage of the gaseous fuel from the outlet. A second valve is movable in a valve body. A second spring is constructed and arranged, when the coil is not activated, to bias the second valve so that a seating surface thereof engages a second seat to close the outlet.

Abstract: A sealing component for reducing secondary airflow in a turbine system includes a first end segment configured to be disposed between, and retained in a radial direction by, a first land on a first rotor disk and a first turbine bucket platform operatively coupled to the first rotor disk. Also included is a second end segment configured to be disposed between, and retained in a radial direction by, a second land on a second rotor disk and a second turbine bucket platform operatively coupled to the second rotor disk. Further included is a main body portion extending axially from the first end segment to the second end segment.

Abstract: A gas turbine system is provided that includes a compressor section, a combustor assembly coupled to the compressor section, and a turbine section coupled to the compressor section. At least one of the combustor assembly and the turbine section includes a sealing sub-system for use in sealing between a first component and a second component. A first component defines a first seal member receiving region oriented between a higher-temperature gas region and a cooler-temperature gas region. A second component adjacent the first component defines a second seal member receiving region oriented adjacent the first seal member receiving region. The sealing system includes first and second end walls defined in at least one of the first and second seal member receiving regions. A seal member is oriented within the first and second seal member receiving regions, and includes at least a first layer defining at least a first resilient seal end portion that engages one of the first and second end walls.

Abstract: A sealing system is provided for a flanged joint. The sealing system includes a split seal and a spring. The split seal includes a radial outer surface, an axial outer surface, and a chamfered surface inclined with respect to the radial outer surface and the axial outer surface. The spring is disposed in urging contact with the chamfered surface and configured to apply an axial force, and a radial force on the axial outer surface, and the radial outer surface respectively.

Abstract: Kits and methods of sealing an engine oil pan to its respective engine block by using a molded gasket of removable type that fits between the oil pan and engine block and timing cover. A removable gasket that fits between the oil pan and engine block and timing cover that does not require silicone sealant for fastening the oil pan to the engine block.

Abstract: A sealed assembly includes a first component having a first flange, and a second component having a second flange matable with the first flange. The sealed assembly also includes a sealant disposed between and along the first flange and the second flange such that the first component is sealingly mated to the second component. The sealed assembly further includes a wire disposed within the sealant, wherein the wire is configured for unsealing the second component from the first component. A method of unsealing the sealed assembly is also disclosed.

Abstract: A gasket having a first upper layer, a second lower layer and a spacer layer is provided. The first upper layer has a bead located between two lands. The second lower layer also has a bead located between two lands. The spacer layer has an embossment located between two lands. A coating may be located within the embossment. The beads are located in an axial relationship with respect to the embossment.

Abstract: A service gasket includes a one-piece laminate body having a plurality of low pressure seals positionable between an engine head and an engine block, and a high pressure combustion seal positionable between the engine head and a sealing surface of a protruding cylinder liner. The one-piece laminate body further includes a plurality of pervasive base layers extending from the outer perimeter to the inner perimeter, and at least one non-pervasive service layer located outwardly of the inner radial region, such that the service gasket has an outwardly stepped-up thickness compensating for increasing a protrusion distance of a sealing surface of the cylinder liner during servicing the internal combustion engine.

Abstract: A method for installing a sealing ring in a ring groove of an injector, in particular a fuel injector, in which the diameter of the sealing ring is enlarged with the aid of an enlarging tool and is inserted into the ring groove, and the enlarged sealing ring accommodated in the ring groove is reshaped to a predefined sealing dimension with the aid of a calibration tool. For the purpose of shifting a residual ring gap remaining in the ring groove during the reshaping process to the groove flank of the ring groove facing away from the combustion chamber, the reshaping process of the sealing ring is carried out by removing the calibration tool from the fuel injector.

Abstract: To provide a seal layer-transferred metal gasket that can effectively prevent degradation in seal performance due to the wearing and peeling of the coating layer. A head gasket is interposed between a cylinder block and a cylinder head. In the metal gasket seal layers made by laminating a separation layer, a coating layer and an adhesive layer in this order from the bead sheet side is formed at least on the surface of the bead sheet facing the cylinder block and the cylinder head, and, in a state where the head gasket is interposed between the cylinder block and the cylinder head and the three objects are closely attached to each other, the adhesive layer is adhered to the seal target members, and at least some portions of the coating layer and adhesive layer are separated from the bead sheet with a boundary at the separation layer and then transferred to the seal areas of the cylinder block and cylinder head.

Abstract: A method and an apparatus for installing an engine seal include the steps of removing the existing seal and repositioning a replacement seal therein. A varying-diameter sleeve is compressed, inserted into the replacement seal and released. A telescoping pipe is inserted into the sleeve and extended until the seal is perfectly seated within a designated groove.

Abstract: A spiral wound gasket (20) is disposed between joint members (22, 24) of a hot fluid joint to seal a gap (48) therebetween. The spiral wound gasket (20) includes a first high temperature performance metallic strip (28) formed of a thermally conductive alloy, including, Ni Cr, and Fe, spirally wound around a central axis (A) to present a first high temperature performance metallic winding (30) exposed to hot fluids. A first non-metallic filler strip (32) formed of a mica material is spirally wound outwardly of the first high temperature performance metallic winding (30) to form a first non-metallic filler winding (34). A second high temperature performance metallic strip (36) formed of a stainless steel material is spirally wound outwardly of the first non-metallic filler winding (34). A second non-metallic filler strip (40) formed of a graphite material is spirally wound outwardly of the second high temperature performance metallic winding (38).

Abstract: A metal gasket includes at least three metal plates including first, second and third metal plates laminated in this order from a top to form the metal gasket. Identification marks are provided on at least second and third metal plates in a position not to overlap with one another, and penetration windows are formed in at least the first and second metal plates. The penetration windows are arranged to see the identification mark therethrough located lower than the metal plate where the penetration window is formed.

Abstract: A valve cover includes a base that attaches to an engine and a display window that attaches to the base. The display window is made of material that can withstand the operating environment of the engine, including temperature and resistance to petroleum-based substances. The display window is secured to the base using a flexible gasket that encircles the display window and snaps into a groove in the base to secure the display window to the base. The display window may be see-through so the valves are visible. The display window may also include one or more display elements, such as light-emitting diodes, optical fibers, electro-luminescent panels, incandescent bulbs, liquid crystal displays, etc. The display window may include embossed or etched portions, and may include multiple colors and sequenced operation to provide any desired effect on the display panel.

Abstract: Head gasket (1) comprising a plurality of blades, or rather of circular crown shaped discs that are laid on top of one another according to an alternation of metal (2)—non metal (3), said blades kept together by arranging an adhesive between each pair of consecutive blades, characterised in that the adhesive is applied in spray form.

Abstract: In one embodiment of the invention, a seal device is provided with integrated leak detection capability for detecting the initiation of a leak of a contained fluid and includes a seal member having at least one sealing contact surface and a sensing member located on the sealing contact surface, the sensing member detecting if a breach has occurred in a seal formed between the sealing contact surface and a member against which the sealing contact surface is sealed to provide an indication of the breach before a complete breach of the seal occurs; and a deposit of electrically conductive particulates on the seal member located between the contained fluid and the sensing member.

Abstract: A fuel injector includes first and second electrical actuators positioned within an injector body. First and second pairs of electrical conductors extend from a socket connector outside of the injector body to the first and second electrical actuators, respectively. The electrical conductors extend through an elastomeric sealing member that seals against fuel leakage from the fuel injector. The elastomeric sealing member provides annular sealing ridges in sealing contact with an access passage of the injector body and includes individual conductor seal passages that form seals around the outer surface of the individual electrical conductors. The elastomeric sealing member includes features that facilitate assembly of the fuel injector in a manner that reduces risk of damage to the sealing strategy.

Abstract: A gasket assembly includes a closed periphery core of compressible sealing material, the core having top and bottom surfaces and inner and outer edges; a first cover component enclosing at least the outer edge of the closed periphery core; and a second cover component enclosing the inner edge of the closed periphery core and extending into overlapping relationship with the first cover component.

Abstract: A spring seal system for a turbine dovetail tab. The spring seal system may include a sealing slot positioned about the tab and a spring seal positioned within the sealing slot. The spring seal may include a substantial “U” shape.

Abstract: A labyrinth seal that may include a first leg positioned about a high-pressure side of the dovetail tab, a second leg positioned about a low-pressure side of the dovetail tab, and a labyrinth chamber positioned between the first leg and the second leg. High-pressure fluid passing through the gap about the first leg expands within the labyrinth chamber so as to limit an amount of the high-pressure fluid that passes beyond the second leg.

Abstract: A fuel injector tip seal is provided including improved resistance to the heat and pressures of combustion gas. According to one aspect, the tip seal is formed from polytetrafluoroethylene and between 10 and 35 percent carbon fiber. The material offers improved surface finish and deformation resistance as well as improved thermal conduction and keeps thermal expansion low as compared to conventional fuel injector tip seal designs. According to a further aspect, a revised seal groove design is provided that allows for expansion and deformation of the tip seal and creates more pressure to the outside diameter face when pressure is applied at the tip. According to another aspect, the tip seal is formed of a flat disk-shaped seal body that can be assembled on the fuel injector by an assembly cone device that allows the disk-shaped seal body to be flipped to a ring-shaped configuration in its assembled position.

Abstract: A sealed joint for a gas sensor as described which includes a sensor shell having an attachment portion and a sealing portion. The sealing portion has an inner recessed section and an outer protruding section terminating at a free end of the shell, the outer protruding section having an outer section diameter which is greater than the diameter of the inner section. The sealed joint also has an upper shield having a shell portion disposed around the sealing portion of the shell and a connector portion which extends upwardly away from the shell portion. The sealed joint includes a first radial crimp of the upper shield proximate the inner recessed section and a second radial crimp of the upper shield in the connector portion proximate the shell portion, such that the second crimp has a crimp diameter which is less than the outer section diameter of the shell.

Abstract: A method for reducing fuel permeation through gasketed joints in an internal combustion engine (10) includes surface treating the gaskets in a halogenated medium before placing them into service. A low-cost elastomer such as acrylic, EPDM or HNBR, can be used for the gasket body. The halogenated medium may comprise either a liquid bath or a gaseous bath, into which the gasket is immersed. The halogenated medium bath is excited by heating to accelerate the halogenation process. A gasket treated according to this invention possesses a chemically altered exterior surface which substantially enhances its fuel permeability resistance at relatively low cost.

Abstract: A filter assembly for fuel is disclosed. The assembly includes a housing and a filter element located in the housing and held in place by a spring. In the space between the inner wall of the housing and the base of the filter element a compressibly resilient element is located which absorbs hydraulic pulses, the filter assembly is subjected to.

Abstract: A seal for an engine is disclosed. The seal may include a cylinder head gasket. The seal may also include a cylinder head having a top surface and a bottom surface, the bottom surface of the cylinder head attached to the cylinder head gasket. The seal may also include a plurality of adjacent openings extending through the cylinder head, from the top to the bottom surface. The seal may further include one or more elongated slots in the bottom surface of the cylinder head, the one or more slots being located between at least two of the adjacent openings and extending between the openings. The seal may also include filler material filling each of the elongated slots.

Abstract: A fuel injector includes first and second electrical actuators positioned within an injector body. First and second pairs of electrical conductors extend from a socket connector outside of the injector body to the first and second electrical actuators, respectively. The electrical conductors extend through an elastomeric sealing member that seals against fuel leakage from the fuel injector. The elastomeric sealing member provides annular sealing ridges in sealing contact with an access passage of the injector body and includes individual conductor seal passages that form seals around the outer surface of the individual electrical conductors. The elastomeric sealing member includes features that facilitate assembly of the fuel injector in a manner that reduces risk of damage to the sealing strategy.

Abstract: A method for reducing fuel permeation through gasketed joints in an internal combustion engine (10) includes surface treating the gaskets in a halogenated medium before placing them into service. A low-cost elastomer such as acrylic, EPDM or HNBR, can be used for the gasket body. The halogenated medium may comprise either a liquid bath or a gaseous bath, into which the gasket is immersed. The halogenated medium bath is excited by heating to accelerate the halogenation process. A gasket treated according to this invention possesses a chemically altered exterior surface which substantially enhances its fuel permeability resistance at relatively low cost.

Abstract: A gasket assembly for an internal combustion engine having a cylinder head gasket and an exhaust manifold gasket. The cylinder head gasket and the exhaust manifold gasket have a common layer of gasket material. The gasket assembly is formed by stamping a cylinder head gasket portion for the engine in one region of a common layer of gasket material concurrently with stamping an exhaust gasket portion for the engine in an adjacent region of the common layer of material.

Abstract: Sealing gasket construction for providing a fluid seal intermediate a pair of opposed, mating parts or structures. The gasket includes a metal retainer and a resilient seal element received in a groove formed into the retainer. Such groove is adapted to be fabricated by coining or a like sheet metal stamping or forming process.

Abstract: A gasket for the cylinder head of a motor-vehicle engine comprises: a body, including a polymeric matrix containing a reinforcement material constituted by a dispersion of microfibres or nanofibres or nanotubes of electrically conductive material, in which each nanotube or nanofibre has a substantially elongated conformation; a uniform distribution of electrodes associated to said body; two layers of electrically insulating material, arranged on the top and bottom surfaces of said body, one on top of and one underneath said polymeric matrix, and designed to insulate electrically said dispersion of nanofibres or nanotubes contained therein; and control and processing means, designed to be connected to any pair of electrodes of said distribution for detecting any variation of electrical resistance across said electrodes and consequently determining any corresponding variation of load applied in the axial direction to the gasket, in such a way that the gasket functions as integrated load sensor.

Abstract: In a method of manufacturing an axis seal, first, a roll of rolled metal material is cut into metal material plates of a predetermined size. Next, metal material plates are etched from both sides so as to form a predetermined size. Subsequently, the thin metal plates are arranged so as to be in a ring shape, oriented in the same direction, and are welded so as to be fixed. Additionally, during these processes, heat treatment is performed by heating rolls of rolled metal materials or metal material plates or thin metal plates at a predetermined timing, thereby eliminating residual stress (strain).

Abstract: A flange structure (10?) for a fuel supply unit of a vehicle includes at least one electrically conductive fuel port (16?) having first and second ends (22, 24) and features (25, 26) defining a channel (28) about a periphery thereof. An elastomer seal (30) is disposed in the channel. A plastic flange (20?) is overmolded on at least a portion of the fuel port between the first and second ends and on at least a portion of the elastomer seal, with the elastomer seal defining a barrier preventing fuel or fuel vapor from passing between the periphery of the fuel port and the overmolded flange.

Abstract: In order to provide a flat gasket, in particular a cylinder head gasket, comprising at least one gasket sheet, which comprises at least one through-opening and at least one sealing bead, which extends around the through-opening and is delimited at the side facing the through-opening by an inner bead foot and at the side remote from the through-opening by an outer bead foot and has a bead crest extending between the inner bead foot and the outer bead foot, and at least one deformation-limiting device, which limits the deformation of the sealing bead and comprises at least one stopper element disposed on a stopper-supporting surface of the gasket sheet, in which flat gasket the effective stopper height of the stopper element may easily be set to a value that differs from the thickness of the stopper element, it is proposed that the stopper-supporting surface is shifted in a direction extending at right angles to the stopper-supporting surface by an offset relative to a part of the surface of the gasket sheet th

Abstract: A fuel injector for the direct injection of fuel into the combustion chamber of a mixture-compressing internal combustion engine having external ignition includes a valve housing formed by a nozzle body, and a seal which seals the fuel injector from a cylinder head of the internal combustion engine. The seal has a sleeve-type design with a structured cross section and extends across the axial length of the nozzle body.

Abstract: A multi-use gasket assembly includes at least two lobes each having a fluid-conveying opening with an associated axis. Four mounting holes are formed in each of the lobes about the openings. The gasket has symmetry across a plane of symmetry containing the axes of the openings.

Abstract: A three-prong integrally formed resilient seal for sealing the juncture of three gasketed members. The seal has a common region having an embedded strain distributor of stiffer material than the remainder of the seal which is integrally formed, preferably by insert molding as a one-piece member.

Abstract: An injector for directly injecting fuel into a cylinder of an internal combustion engine having a socket. The injector is provided with a nozzle insertable into the socket. An annular gap is defined between the nozzle and the socket when the nozzle is received in the socket. A first seal groove, formed in the nozzle, receives a first gas seal that seals the annular gap. A second seal groove, formed in the nozzle, receives a second gas seal that seals the annular gap. The second seal groove is formed closer to the distal end of the nozzle than the first seal groove. The depth of the second seal groove is greater than that of the first seal groove. This structure prevents the formation of deposits and maintains the sealing capability of the gas seals without lowering installation and maintenance efficiency.

Abstract: A flat gasket for sealing off a region, especially for sealing off a region bordered by a cylinder head cap, includes an elastic material that effects the sealing function and at least one pass-through region for passing through a conductor such that the conductor can extend, in the mounted condition of the flat gasket, from outside the region to be sealed off into the interior of such region. The flat gasket also includes a shaped tongue connected to the pass through region and extending into the region to be sealed off, the shaped tongue having opposed flat sides and being deformable at least vertically relative to the plane of the seal, and the tongue supporting on its flat sides at least one conductor guiding- and/or conductor securing-element.

Abstract: A gasket (48, 48?, 48?) and (70) for disposition between a fuel injector (22) and a cylinder head (14) comprises compressible polymer layers (62, 64, 74, 92) and incompressible and flat metal layers (60, 72, 90) sandwiched between the polymer layers. In the embodiments of FIGS. 6-8, a polymer body (80, 96) is disposed radially inwardly of the incompressible layer (72) or layers (90) and includes a bead portion (86) thicker than the total thickness of the incompressible and polymer layers (72), and (74, 90) and (92). The body (80, 96) also includes a recess portion (82-84) having a thickness less than the total thickness to define a recess (88) adjacent the bead portion (86). The bead portion (86) is disposed radially between the recess portion (82-84) and the incompressible layer (72 or 90).

Abstract: A casing cover (1, 10, 20) for an internal-combustion engine, particularly valve covers or oil pans, for being mounted detachably and fluid-tight to the engine block (5, 13, 21), having a peripheral edge that is profiled to receive an elastomer seal (3, 12) at the edge (2, 11) of the casing cover (1, 10, 20). The cover is provided with an axial extension (7, 14) that is oriented in the direction of the engine block (5, 13, 21) and is disposed at an inner portion of the edge (2, 11) of the casing cover (1, 10, 20). The extension is positioned to project axially beyond the sealing surface (4, 15), an engine block wherein the casing cover is inserted so the casing cover is at least positioned correctly on the engine block.

Abstract: A seal kit for vehicle air conditioning systems and associated methods are provided. The seal kit includes a container and a set of a plurality of retrofit seals positioned in the container and adapted to retrofit a set of a plurality of existing seals of any one preselected group of different vehicle air conditioning systems corresponding to a preselected group of different vehicles. The seal kit simplifies and shortens the selling cycle by condensing multiple similar vehicles' seal requirements into kits allowing the ready identification of system seals by year, make, model, and when applicable, engine type. The condensing of individual components or seals into kits also allows reduction of inventory. The identification by year, make, model, and engine type speeds the selling process by quickly identifying the necessary kit and allowing one kit to be sold instead of multiple components or seals.

Abstract: A valve stem seal assembly includes an elastomeric sealing member for sealing between a reciprocally moveable valve stem and an associated valve guide in an internal combustion engine. The assembly includes a cylindrical retainer that incorporates an end wall at a first end thereof for securing the elastomeric sealing member to the retainer. The valve assembly is installed over the valve guide, and the retainer is adapted for frictional securement to the guide, whereas the retainer extends down to and engages the surface or deck of the associated engine cylinder head. The retainer includes a radially extending bottom flange at a second end opposite the end wall, wherein the flange bears directly against the cylinder head deck. The upper surface of the flange provides a bearing surface for valve return springs, while the bottom surface of the flange includes an elastomeric sealing media bonded thereto.

Abstract: A casing cover (1, 10, 22) for an internal-combustion engine, particularly valve covers or oil pans, to be mounted detachably and fluid-tight to an engine block (5, 13, 23), having an elastomer seal profile (3, 12, 28) disposed at the peripheral edge (2, 11) of the casing cover (1, 10, 22), and an inside (6, 17), axial extension (7, 14, 26) oriented in the direction of the engine block (5, 13, 23) disposed at the edge (2, 11) of the casing cover (1, 10, 22). The extension projects axially beyond the sealing surface (4, 15) of the engine block when the cover is installed, and a seal (20, 29) is disposed at least between the axial extension (7, 14, 26) and the engine block (5, 13, 23).

Abstract: A sealed cover, such as an engine valve or rocker cover, is mounted on an engine with balanced grommets which support the cover through equal compression loads on inner and outer sides of the cover. A sealing surface of the cover is positioned with a fixed gap from a facing sealing surface of a cylinder head or other engine component. The gap is sealed by a liquid RTV seal material that is vulcanized in place at room temperature after installation of the cover. The arrangement separates the function of noise isolation from the sealing function performed by the RTV material so that the specifications of the sealing material and the noise isolating grommet material can be varied as desired to perform their separate functions without a change in one affecting the other.

Abstract: A method of installing a valve seal at the base of a valve stem of an automotive internal combustion engine is disclosed. A two-piece tool consisting of first and second tool parts is employed for carrying out the method. The first tool part is used to push upon the valve seal while the second tool part is engaged over the free end of the valve stem and guides the movement of the first tool part as it pushes upon the valve seal. The method employs a coaxial assembly to keep square the pushing upon the valve seal by the first tool part consisting both of the slidable engagement between the two tool parts and of the fixed engagement between the second tool part and the valve stem.

Abstract: A method and apparatus for a gasket with a molded-in bolt retention means is herein provided. The apparatus includes a gasket carrier encased in a silicone rubber gasket, with the gasket carrier containing a series of holes. The holes in the gasket carrier are preferably in a star-shape and secure the bolt in place when the bolt is pressed through the opening. The method of assembling the gasket is also provided, the method including the steps of encasing the gasket carrier within the gasket, attaching an associated cover to the gasket, sliding the associated bolt through the various openings, and securing the bolt in place.

Abstract: For manufacturing a seal between two machine parts (10, 11) which together enclose a space (14) in which, at least at times, high pressure and/or high temperature prevail, sealing means which contain a curable composition (30) are arranged between the two machine parts (10, 11). The curable composition (30) is applied directly onto one or both machine parts (10, 11) in liquid form at least in the area which does not directly adjoin the space (14) in which, at least at times, high temperature and/or high pressure prevails. The two machine parts are built in before the curing of composition (30). A sealing ring can be inserted between the two machine parts (10, 11) directly around the edge of the high pressure and high temperature space (14) or that edge can be slightly raised and the curable composition (30) can be used for sealing outside this area.