Abstract: Provided is a gasket, and more particularly, to a gasket including a C-ring end formed at at least one side of a kammprofile. According to the present invention, a higher bolting force and restoring force may be secured than those of other gaskets having the same size as the gasket. Furthermore, a core spring may be easily fixed and attached to the gasket through the C-ring end formed at the kammprofile without an external jacket. Accordingly, production costs may be decreased by simplifying the structure of the gasket as described above.

Abstract: A gasket retainer that is absent sharp corners, has apertures of reasonable dimensional tolerance, and may be conveniently made by a variety of manufacturing processes. The retainer is made from thin flat springy material that readily returns to form after slight bending. Representative gasket capturing apertures are of smoothly non-convex outline with major dimension sufficiently large to allow passage of a ring shaped gasket turned on edge and minor dimension sufficiently small to engage, on approximately opposite circular segments that each engage along less than one third of a gasket circumference, a cavity or groove on the outside diameter periphery of the gasket turned flat parallel to the retainer material sheet. Fasteners may be retained by similar apertures.

Abstract: A multi-layer metal gasket includes a first functional layer and a second functional layer. A bore and a fastener hole extend through the first and second functional layers. The first functional layer has a first embossment protruding toward the second functional layer and the second functional layer has a second embossment protruding toward the first functional layer. The first embossment and the second embossment each encircle the bore. An intermediate layer is between the first and second functional layers. The intermediate layer extends between the first embossment and the second embossment and extends from the first and second embossments to the fastener hole. A spacer layer is between the intermediate layer and the first functional layer. The spacer layer has an inner edge defining a hole through the spacer layer. The inner edge encircles the first embossment. The spacer layer extends from the inner edge to the fastener hole.

Abstract: A cylinder head gasket with a carrier layer and at least one inserted sealing element, wherein the inserted sealing element has a passage opening for combustion gas, the inserted sealing element is fastened on the carrier layer on an outer side which is spaced apart from the passage opening, and the inserted sealing element has at least a first layer and at least one further layer. An engine component comprising the cylinder head gasket is disclosed, the engine component having an engine block unit, a cylinder sleeve unit which delimits the engine block unit at least in regions from a combustion chamber, and a cylinder head unit, wherein the cylinder head gasket is arranged between the cylinder head unit on one hand and the engine block unit and the cylinder sleeve unit on the other hand.

Abstract: An anti-polishing ring includes a ring body defining an axis of revolution, and a radial direction that is perpendicular to the axis of revolution, and a circumferential direction about the axis of revolution. The ring body includes an outer circumferential surface, a bottom surface, a top surface, and an inner circumferential surface. The inner circumferential surface defines an inner diameter, the ring body defines a radial thickness measured from the inner circumferential surface to the outer circumferential surface, and a ratio of the radial thickness to the inner diameter ranges from 0.015 to 0.020.

Abstract: An internal combustion engine gasket includes a plurality of annular plates that are stacked. Each of the annular plates includes: a through-hole; an inner circumferential portion; a plurality of bolt holes; an outer circumferential portion; and an intermediate portion. The annular plates includes: a grommet plate having a fold-back portion in the inner circumferential portion; and first and second seal plates stacked on both sides of the grommet plate, and having a bead in the intermediate portion. The inner circumferential portion of the first seal plate is wrapped or held by the fold-back portion of the grommet plate. A spacer member is formed between the grommet plate and the first or second seal plate along the entire circumference of the outer circumferential portion so as to have a thickness smaller than or equal to the grommet plate and include all of the bolt holes.

Abstract: Provided is a gasket being interposed between the flanges which are the connecting portions of the pipes. The gasket includes: a first jacket; a kammprofile provided in the first jacket; an O-ring member provided at the inner side of the kammprofile; and a second jacket encasing a portion of the first jacket, the kammprofile, and the O-ring member. A method of manufacturing the gasket is provided.

Abstract: A wave washer includes an annular member surrounding an opening arranged to receive a pipe axially therethrough, the annular member having a plurality circumferentially spaced holes formed therein. The wave washer also has associated with it at least one spring portion protruding axially from the annular member between two of the holes. The wave washer can be used in a pipe joint to join a first pipe and a second pipe, each having a pipe end having a pipe flange and an adjacent sealing flange. The wave washer is positioned against an inner side of the pipe flange of the first pipe. The wave washer and the flanges of the first and second pipes are fastened based on the deflection of the annular member of the wave washer.

Abstract: A multi-layer gasket including first and second functional layers, each having an opening. Each of the functional layers includes a compression bead, and the compression beads contact and seal against one another when the gasket is compressed between a cylinder head and an engine block. At least one of the functional layers includes a stopper disposed between the compression bead and the opening. The stopper has a gear-like shape including a plurality of circumferentially spaced teeth. Each tooth extends upwardly from a plane by a distance which is less than the combined height of the compression beads. When the gasket is compressed between the cylinder head and engine block, the stopper ensures that the compression beads remain elastically biased against one another and maintain a gas-tight seal.

Abstract: The cylinder head gasket includes a gasket layer which presents an inner periphery that surrounds an opening. The gasket layer has a first thickness adjacent the inner periphery. A combustion seal is positioned in the opening and extends circumferentially around an axis. The combustion seal is joined with the inner periphery of the gasket layer. The combustion seal has a height that is greater than the first thickness of the gasket layer. The combustion seal includes at least one seal body which is generally C-shaped as viewed in cross-section and is resiliently flexible for maintaining fluid tight seals with the cylinder head and the engine block. The C-shaped seal body presents a pocket which faces away from the inner periphery of the of the gasket layer for receiving combustion gasses during use to improve the fluid tight seals established with the cylinder head and the engine block.

Abstract: A heat-resistant gasket is provided with a first coating plate in which an annularly continuous emboss portion is formed and which is made of metal, a second coating plate which is arranged so as to face to the first coating plate in a thickness direction and is brought into close contact with a convex surface of the emboss portion, in which end portions in an inner peripheral side of the emboss portion are connected in a state of being in close contact with and lapped over the first coating plate and which is made of metal, and an expanded graphite core which is pinched between the first coating plate and the second coating plate, in a portion between the emboss portion and the overlapped portion of the end portions. Therefore, excellent sealing performance can be maintained even under a high-temperature environment while preventing stress relaxation due to heat.

Abstract: A manway lid gasket is an annular gasket that has top and bottom surfaces between the inside diameter and outside diameter of the gasket. Each of the top and bottom surfaces includes a concave, circumferential groove therein. Additionally, the gasket has a radial cut out that extends from the outside diameter face partway through the radial width of the gasket and has an annular corrugated metal insert positioned therein.

Abstract: The cylinder head gasket includes a gasket layer which presents an inner periphery that surrounds an opening. The gasket layer has a first thickness adjacent the inner periphery. A combustion seal is positioned in the opening and extends circumferentially around an axis. The combustion seal is joined with the inner periphery of the gasket layer. The combustion seal has a height that is greater than the first thickness of the gasket layer. The combustion seal includes at least one seal body which is generally C-shaped as viewed in cross-section and is resiliently flexible for maintaining fluid tight seals with the cylinder head and the engine block. The C-shaped seal body presents a pocket which faces away from the inner periphery of the of the gasket layer for receiving combustion gasses during use to improve the fluid tight seals established with the cylinder head and the engine block.

Abstract: A cylinder head gasket with a single layer carrier member, a sealing ring for sealing around the cylinder opening, and at least one protection layer. The sealing ring has a plurality of functional layers. A protection layer is positioned on at least one side of the sealing ring, and preferably on both sides. The sealing ring and protection layers are fixedly secured to the carrier member by welding.

Abstract: The invention relates to a metallic flat gasket comprising a gasket layer (2) having at least one combustion chamber through-opening (3) which is surrounded by an elastically deformable sealing element (4) which is configured in the form of an undulatory profiling (40) in the gasket layer (2) in such a way that on each of the surfaces (21, 22) of the gasket layer (2) at least two wave crests (41) and two wave troughs (42) are present. The thickness (hyl) of the gasket layer (2) in the region of the sealing element (4), in the unloaded state, is greater than the original thickness (alpha) of the gasket layer. Apart from the undulatory profiling (40), no further sealing or support elements are present around the combustion chamber through-opening (3). The sealing element has, when subjected to linear compression of from 500 to 2,800 N/mm in a direction which is substantially perpendicular to the plane (E) of the gasket layer, a thickness which is greater by from 0.05 to 0.

Abstract: The present invention relates to an exhaust manifold gasket having a metallic core, at least one insulating layer, and an embossed layer. The metallic core has two sides with at least one side having a plurality of projections. The insulating layer has two sides, with the first side contacting the projections of the metallic core and the second side contacting the embossed layer. The embossed layer is a metallic flange having a lower leg, a convex face, and an upper leg.

Abstract: Cylinder head gasket whose gasket plate comprises a single sheet metal layer, combustion chamber openings, and for each combustion chamber opening a ring-shaped combustion chamber sealing element, which is a sheet metal ring that is arranged on the sheet metal layer and is joined to the latter by welding; to avoid the risk of damage to a combustion chamber sealing element as a result of sliding movements occurring between a cylinder head sealing surface and the cylinder head gasket while the engine is in operation, all sheet metal rings are arranged on that side of the sheet metal layer which is to face an engine block.

Abstract: A metal laminate gasket includes a first metal substrate having a base portion and a folded portion, a second metal substrate laminated with the first metal plate, an intermediate plate disposed between the base portion and the second metal substrate, and a bead plate situated under the base portion. The bead plate includes a first full bead disposed around the first hole to project toward the base portion, and an outside portion disposed above the intermediate plate. The bead plate, first and second metal substrates and intermediate plate have first and second holes. The bead plate is formed to surround the first and second holes without extending to an entire area of the gasket. The total plate thickness of the first and second metal substrates, bead plate and intermediate plate at the full bead position is substantially same as that around the second hole.

Abstract: The present disclosure relates to a cylinder head gasket assembly for an internal combustion engine. The gasket assembly includes a sheet configured to fit between a cylinder head and engine block, an annular bead formed in the sheet configured to maintain sealing pressure during combustion, and a shim coupled to the bead in a manner to concentrate axial loading during combustion. This gasket assembly maintains adequate sealing load while using fewer sheets (or layers). In many cases only one sheet enables sufficient sealing.

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 crankcase is coupled to a lower end face of a cylinder block of an engine and includes first and second case halves coupled to each other in a plane perpendicular to joint surfaces of the cylinder block and the crankcase. A U-shaped seal groove is defined in one of the joint surfaces of the case halves. Enlarged recesses are made at opposite ends of the seal groove. A bar-shaped seal member having enlarged end portions formed at opposite ends thereof is mounted in the groove such that the enlarged end portions are filled in the enlarged recesses. Thus, it is possible to ensure accuracy of the positioning of the bar-shaped seal member without the need for a high level skill; thereby, reliably sealing portions of intersection between the joint surfaces of the cylinder block and the crankcase and the joint surfaces of the case halves of the crankcase.

Abstract: An exhaust gas manifold for mounting on a cylinder head of an internal combustion engine, composed of at least one cylinder support having bores for evacuating the exhaust gas. The exhaust gas manifold comprises an exhaust gas manifold collector housing (9) for collecting exhaust gas from the cylinder head, and a sealing device (10) placed between the exhaust gas collector housing (9) and the cylinder head (2). The exhaust gas manifold collector housing (9) is provided with recesses (12) so that it can be directly connected to the cylinder head (2) via a fixation mechanism (18), whereby the effect of heat enables movements between the exhaust gas manifold collector housing (9) and the cylinder head (2).

Abstract: In a cylinder head gasket, a base plate forming the gasket is formed of a first metallic material, and a grommet is provided around a hole for a cylinder bore and formed of a second metallic material different from the first metallic material. The grommet and the base plate are connected by welding. Accordingly, the grommet formed of the optimum material can be provided around the hole for the cylinder bore, and the base plate can be formed of the optimum material. Thus, the cylinder head gasket has a good sealing ability and excellent durability.

Abstract: An improved combustion gasket is disclosed incorporating a self-energizing combustion seal flange. The flange includes at least one valley that serves to redistribute combustion explosion forces acted upon the gasket during operation of the engine to provide improved combustion sealing and to extend flange life.

Abstract: A spring back fire ring is provided in a gasket assembly that is used for sealing combustion openings. In addition to the spring back fire ring, the gasket assembly includes a main gasket body and upper and lower gasket layers. The spring back fire ring has first and second ends. The first end is biased upwardly around the periphery of the combustion openings. The second end is positioned proximate to the main gasket body. In one embodiment, the second end is integral with the main gasket body.

Abstract: A cylinder head gasket includes a main gasket body having at least one cylinder opening, a wire sealing ring, and a metal armoring ensheathing the wire sealing ring. The metal armoring has a first annular flange portion extending beyond the cylinder opening in overlying relation to a first main surface of the main gasket body, a second flange portion opposite the first flange portion having a size no greater than that of the cylinder opening, and a curved portion joining the first and second flange portions. The cylinder opening is notched to receive lock tabs of the second flange portion through the main body, after which the metal armoring is rotated to offset the lock tabs from the notches to lock the armoring and sealing ring within the cylinder opening.

Abstract: A metal gasket assembly comprises a substrate metal sheet having at least one opening, and a peripheral member fitted into the opening along and welded to the periphery thereof. The peripheral member is made of a metal plate having a thickness greater than that of the substrate metal sheet.

Abstract: A head gasket assembly used in an internal combustion engine. The head gasket assembly optimizes a load distribution of the head gasket over an engine block of the internal combustion engine by decreasing a thickness profile of the head gasket assembly about a combustion chamber of the internal combustion engine. This increases the seal capabilities of the gasket assembly. The gasket assembly has a gasket body with an opening and tabs extending from the gasket body toward the opening. Cut-out portions are positioned between the tabs and a fire ring is provided about the opening. A wrap secures the fire ring to the tabs.

Abstract: A multi-layered gasket for a combustion engine having a plurality of active and spacer gasket layers that are removably secured together is disclosed. The active layers are arranged in face-to-face engagement with the spacer layers in an alternating manner. The spacer layers may be selectively removed or added to vary the compression ratio of the engine. Alternatively, spacer layers may be selectively substituted with additional spacer layers having differing thincknesses to selectively vary the compression ratio of the engine. Retaining mechanisms for removably securing the gasket layers together are also disclosed.

Abstract: This gasket comprises two superimposed similar metal plates, each of which comprises a central main part and a peripheral part which are separated from one another by a slot intended to house a bead of sealing elastomer, the two parts of each plate being locally connected by bridges, the coincident slots of the two superimposed metal plates being lined with one and the same bead of sealing elastomer protruding from both sides of the gasket, and means for laterally immobilizing the two metal plates.

Abstract: A metal gasket 10 for use between heads and blocks of an internal combustion engine in which such gasket is composed of a beaded plate 11 and a stopper plate 12 placed one on top of the other. The metal gasket 10 has an opening 13 corresponding to the cylinder hole of the engine. The metal gasket 10 has an annular stopper 17 formed by folding back the periphery of the opening 13 the stopper plate 12. The metal gasket 10 also has a stepped part 19 along the outer periphery of the stopper 17. This stepped part 19 projects toward the side of the gasket on which the stopper 17 is formed. The metal gasket 10 also has a spacer layer 20 formed between the stopper 17 and an annular pressure receiver 18 the stopper plate 12. The metal gasket 10 also has a rubber coating layer 21 formed at least on that side of the stopper plate 12 opposite to the side on which the stopper 17 is formed.

Abstract: A combustion seal for sealing high pressure combustion gas within at least one cylinder of an internal combustion engine including a cylinder block, a cylinder head having a groove formed in its bottom face, a cylinder liner having a complementary groove formed in its top face, and a O-ring formed from a ductile material and positioned between and contacting each edge of the groove formed in the cylinder head and the complementary groove formed in the cylinder liner, wherein the O-ring is compressed when the cylinder head is secured on the cylinder such that the O-ring has multiple radial restraint points of contact with the edges. When securing the cylinder head onto the cylinder block, the O-ring is positioned between the grooves in the cylinder head and cylinder liner before a compressive force is applied.

Abstract: A cylinder head gasket of the present invention includes a main gasket body and a metallic generally U-shaped flange which engages the inner periphery of a combustion bore opening formed in the main gasket body. A coating including tetrafluoroethylene and a high temperature resin binder such as either a polyimide or a polyamide-imide polymer are applied to at least the flange after it is formed and the entire gasket then cured at high temperatures in a series of steps including sintering to securely bond the coating to the flange. An optional plating layer disposed between the coating and the base material of the flange further improves bonding.

Abstract: A head gasket and method for making and using the same is provided wherein the head gasket includes a wire ring which has been preflattened. The preflattened ring facilitates broad load distribution and is preferably used in an internal combustion engine having a bi-metallic engine block-head arrangement wherein the head is composed of a soft metal.

Abstract: A metal laminate gasket of the invention is formed of first and second metal plates and an annular plate. The first metal plate has a base portion, a curved portion extending from the base portion to define a first opening corresponding to a hole of the engine to be sealed, and a flange extending from the curved portion and situated over the base portion. The annular plate is situated between the flange and the base portion and has the width at least partly shorter than that of the flange. The second metal plate is situated over the first metal plate at a side where the flange is located. The second metal plate has a second opening at least partly smaller than an outer diameter of the flange, and an edge portion around the second opening. The edge portion of the second plate is at least partly retained between the flange and the base portion. Thus, the first and second metal plates are assembled together with the annular plate.

Abstract: A cylinder head gasket assembly of the present invention includes a main gasket body and a fluid flow opening. A spiral wound component is received within and engages an inner periphery of the fluid flow opening to provide enhanced dynamic recovery and sealing to the fluid flow opening. In one embodiment a generally U-shaped flange engages the inner periphery of the fluid flow opening with the spiral wound gasket disposed within the flange.

Abstract: A metal laminate gasket of the invention is formed of first, second and third metal plates. The first metal plate includes a curved portion to define a first hole corresponding to a hole of an engine to be sealed, and a flange extending from the curved portion. The second metal plate is located above a first base portion of the first metal plate, and has a second hole with a diameter greater than a size of the flange. The third metal plate is situated above the second metal plate, and includes an inner portion situated around a third hole under the flange. A stepped portion is formed between the inner portion and a third base portion by bending the third metal plate to have a thickness greater than that of the third metal plate. When the gasket is compressed, the stepped portion is disposed between an outer edge of the flange and an edge of the second hole and provides a surface pressure thereat. The stepped portion securely seals around the hole of the engine outside a main sealing device.

Abstract: A head gasket assembly for an engine with minimal space between adjacent cylinder bores. Armoring including a bridge between adjacent combustion openings is provided with the legs of the combustion openings enclosing wire rings and being welded to each other in the zone of adjacency. The wires are stabilized and maintained in permanent close adjacency.

Abstract: A gasket has a flat body with openings provided for combustion chambers, lubricating fluid passages, engine coolant passages, and studs mounting a cylinder head on an engine block. Each of the combustion chamber openings is bordered by a sealing element defining an armor ring. Each armor ring has a tab located on its outer edge, extending over at least part of its periphery, attached to the gasket body enabling the armor ring to move perpendicularly to and/or in the plane of the gasket body.

Abstract: The invention is directed to a metal gasket for sealing a clearance between a pair of clamping members. The metal gasket is formed of a metallic base plate on which at least one opening is defined. An annular metallic shim is welded on the base plate around the opening thereof. The annular metallic shim is disposed around the opening, and welded on the base plate by spot welding, forming a plurality of nuggets in series around the shim in such a manner that two adjacent nuggets overlaps each other and a space between those two nuggets is smaller than a diameter of each nugget.