Abstract: A gasket which can uniformize the facial pressure on the thickened part more securely is to be provided. A gasket comprises a pair of base plates and stacked above and underneath, in which combustion chamber holes and bolt holes are bored, a doubling plate and shim plates intervene between these base plates. On this doubling plate, a second bead, which permits plastic deformation, extends in the circumferential direction of each combustion chamber hole. As the second bead is deformed according to the magnitude of the fastening load, the gasket height lowers where the fastening load is heavy and the facial pressure on the peripheries of combustion chamber holes is uniformized after fastening.

Abstract: A cylinder head gasket for an open deck engine includes a first metal plate having a base portion and a folded portion, and a second metal plate having a first half bead provided between inner and outer portions and extending in a direction away from the base portion. An annular bead plate with a first full bead is provided on the inner portion. An intermediate plate is provided between the outer portion of the second metal plate and the base portion of the first metal plate. The intermediate plate has a second half bead extending toward the base portion of the first metal plate. The inner periphery of the second half bead is located on or along an outer-periphery of the cylinder portion.

Abstract: A gasket commonly used for a plural kinds of objective members to be sealed, the objective members having the same outer shapes and differently figured plural bores to be sealed.

Abstract: A pressure resistant case (22) is constructed in a rectangular parallelepiped box shape by assembling a bottom plate (61) and ceiling plate (62) and first side plate (63) and second side plate (64) and third side plate (65) and a fourth side plate (66) formed of thick aluminum plate and by welding on four sides by the TIG welding method. In the TIG welding of the ceiling plate (62) and the first side plate (63), the end surface on the side where a hollow section (72) of the ceiling plate (62) is formed, abuts against the main surface on the side where the locating section (71) of the first side plate (63) is formed. The edge near the hollow section (72) of the ceiling plate (62) is abutted against the locating section (71), and a fillet weld section (75) is formed by TIG welding on the corner section formed by the ceiling plate (62) and the locating section (71).

Abstract: A gasket which can secure a sufficient sealing capability even for compact, light and less rigid high-performance engines is to be provided. The gasket comprises a metallic base plate and a shim plate stacked around each of combustion chamber holes in the base plate. A base plate bead consisting of a full bead is formed along the circumference of each of the combustion chamber holes. The shim plate is large enough to be arranged opposite a first flat part, a base plate bead formation position A and a second flat part in the base plate. A plurality of strips of auxiliary beads are formed in the part of the shim plate opposite the base plate.

Abstract: A flat seal, assembly comprises at least one metallic layer, which is to be supplied with several passages, spaced by bridges, whereby at least one corrugation and/or at least one wavelike contouring is to be set out at least in the area of one of the layers, on the passage side and at least for part of the area. The profile surrounding the pertaining passage has an approximately constant cross-section and a different profile is provided for the area of the pertaining bridge at a specified circumferential angle (?) to increase compression in this area.

Abstract: A metal gasket includes a first metal plate having a main full bead with bottom portions around a hole to be sealed, and a second metal plate laminated with the first metal plate on a depression side of the main full bead. The second metal plate has restricting members for restricting expansion of the bottom portions of the main full bead. Thus, when the gasket is compressed, lateral expansion of the main full bead is restricted to provide an appropriate surface pressure by the main full bead.

Abstract: The present invention relates to a gasket (1) which is suitable for the seal between two components. Gaskets (1) of this type are used for example in engine construction in order to seal all types of pipes and other connections in the exhaust pipes. According to the invention, this gasket (1) has at least one non-even gasket layer (2) which surrounds a through-opening (6) which is to be sealed. In this gasket layer (2) there is situated at least one periodic structure (12) with a period length greater than 1 which surrounds the through-opening (6) at least in regions. This periodic structure (12) is embossed in the gasket layer (2) in such a manner that the total thickness of the gasket layer (2) in the region of the periodic structure (12) is greater than the material thickness of the gasket layer (2).

Abstract: A cylinder head gasket for an internal combustion engine with a cylinder bore and a fluid hole includes a first metal plate having a curved portion around the cylinder bore and a folded portion extending from the curved portion, and a second metal plate laminated on the first metal plate and having a first full bead projecting toward the first metal plate. The first full bead is disposed on the folded portion. At least one secondary plate is inserted inside the folded portion.

Abstract: Flat gasket with a gasket plate comprising at least one sheet metal layer, at least one fluid through-opening to be sealed, and a plurality of screw through-openings, the sheet metal layer having at least one supporting element for receiving pressing forces, and the supporting element being in the form of a bead stamped into the sheet metal layer; in order to improve the durability of the supporting bead while in operation, the bead is designed so as to form with its bead crest, in a plan view of the sheet metal layer, an endless continuous line closed within itself, so that the bead does not have any free bead ends.

Abstract: A cylinder head gasket for an open deck engine includes a first metal plate having a folded portion extending from a curved portion and located under the base portion, and a second metal plate having an inner portion disposed on the folded portion, an outer portion outside the inner portion and a first half bead provided between the inner and outer portions. An annular bead plate having a full bead is provided on the inner portion of the second metal plate, and an intermediate plate is provided on the outer portion of the second metal plate, wherein an inner end portion of the intermediate plate is disposed under an outer edge of the annular bead plate. A total thickness of the metal plates at the flange is equal to a total thickness of the metal plates outside the flange including the inner end portion.

Abstract: A gasket system is described and depicting having a gasket located between and sealing a cylinder head and a cylinder block. The gasket has a first metal layer and a second metal layer adjacent said first metal layer. The second metal layer has a bead region and a stopper region. At least a portion of the bead region has a predetermined tensile strength and a predetermined range of yield strength.

Abstract: An embodiment provides a MLS gasket that includes a metal body portion having an external periphery, an upper body surface generally defining a first plane. At least one cylinder aperture formed in the metal body portion and defined by an inner aperture surface. The gasket also includes a combustion seal insert including a first insert layer having an outer first periphery, a top first insert surface and a bottom first insert surface. The outer first periphery is circumscribed by the inner aperture surface. The first insert layer includes a first insert bead portion. The gasket further includes a first sealing layer having a top first sealing surface and a bottom first sealing surface. Portions of the bottom first sealing surface are selectively in contact with each of the upper body surface and the top first insert surface. Compression of the first insert bead portion is selectively limited by the body portion.

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: A flat seal with increased wear resistance with respect to relative movements and local excess pressure includes a base support plate provided with profiling on both sides in the region of the fastening of the seal, which profilings lead to the surface being enlarge in this region and hence the forces being reduced, and also cause an increase in the friction or even a toothing effect with the pressed-on flanges. The profilings can lie freely or can be additionally coated or filled with an elastomer material. Through the local separation of functions which is thus achieved between sealing effect and fastening effect, a flat seal is provided which shows less wear and is therefore able to function for longer, without additional elements or costly processing steps being necessary.

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 high pressure metal-to-metal seal utilizes an expandable metal seal element able to withstand caustic fluids, high pressure, and high temperature. The metal-to-metal seal assembly is resilient for repeatable sealing and comprises an energizing metal ring and a metal sealing ring. Engagement of these two rings expands surfaces of the metal sealing ring to create inner and/or outer metal-to-metal seals.

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 metal laminate cylinder head gasket includes first and second metal plates laminated together. The first metal plate has a combustion hole, and an asymmetrical bead formed around the combustion hole. The asymmetrical bead has a large radius portion with a width (a) at a side of the combustion hole from a top of the bead, a small radius portion with a width (b) at the other side from the top of the bead, and a smallest radius (R). The second metal plate is laminated at a projecting side of the asymmetrical bead. A relationship between (a) and (b) is (a)>(b), the smallest radius (R) is (R)?0.5 mm, and a relationship between the width (a) and the radius (R) is (a)?2(R).

Abstract: Gas turbine engine seals and engines incorporating such seals are provided. In this regard, a representative seal includes: an annular seal body having an inner diameter and an outer diameter, the seal body extending along an axis of symmetry between a first end and a second end; the seal body being formed of a strip of material having first and second opposing edges, the strip of material being deformed to exhibit a first sealing surface at the first end, a second sealing surface at the second end, and a third sealing surface along the inner diameter, the first edge being located adjacent to the third sealing surface, the second edge being located adjacent to the second sealing surface; the first edge being spaced from the second edge to define an annular opening, the annular opening providing access to an annular cavity of the seal body.

Abstract: A cylinder head gasket includes at least one metal plate having a plurality of cylinder bores, a plurality of liquid holes and a plurality of bolt holes. Sealing beads are formed around the cylinder bores and the fluid holes, and a parting bead is formed separately from the sealing beads. In case the at least one metal plate is divided, in a plan view, into four areas including a front side and a rear side, and an intake side and an exhaust side by two straight lines perpendicular to each other to have equal areas, respectively, the parting bead is added to at least one of the four areas such that a total length of the sealing bead and the parting bead therein is between 95% and 100% of one of the four areas having a longest total length of the sealing bead.

Abstract: The invention relates to a gasket for sealing two components in a combustion engine, said gasket comprising at least one layer and having at least one through opening for fluid to pass through. The present invention thus provides a flat gasket comprising at least one metal layer which has at least one through opening for fluid to pass through. At the at least one through opening of the at least one layer, a projection is present which points in the direction of the through opening and forms an attachment area and on which a reinforced sealing insert is arranged by means of an adhesive bond to a flat reinforcing element.

Abstract: The invention relates to a flat gasket with a gasket sheet having a plurality of passages. The gasket sheet comprises at least one first sheet metal layer which has at least on one side at least one elongate elevation with an elongate base formed out of the sheet metal layer. The base, under maximum stress occurring during installation of the gasket and in machine operation, is stable with respect to the height thereof in at least first longitudinal sections. The flat gasket is particularly useful for cases where machine part sealing surfaces between which the flat gasket is to be inserted do not have the component elasticity required for a reliable seal. The gasket sheet has at least one second sheet metal layer which has a height-elastic bead in the area of the base which, together with the base, forms a thickness-elastic area of the flat gasket.

Abstract: There is disclosed a compressor capable of easily adjusting top clearances in a case where metal gaskets are used as a seal material between a valve plate and a casing main body. In the compressor in which pistons reciprocate in cylinders of the casing main body constituting a casing to perform a compression work and which is constituted by fixing cylinder heads with bolts to the casing main body via the seal material and the valve plate, the seal material to be interposed between the valve plate and the casing body is constituted by superimposing a plurality of metal gaskets on one another.

Abstract: A metal laminate cylinder head gasket is formed by a plurality of metal plates laminated together, and a misalignment preventing portion for preventing misalignment of the laminated metal plates, formed in the metal plates. The misalignment preventing portion includes a pair of notches facing each other and penetrating each of the metal plates, and a bridging portion provided between the notches in each of the metal plates and bulging in one direction to project from a surface of each of the metal plates. The metal plates are laminated together such that the notches and the bridging portions overlap and closely contact to engage together to thereby prevent displacement of the metal plates.

Abstract: Cylinder head gasket is provided having a single-layered or multilayered metallic gasket plate with sealing beads in at least one metal layer, which are elastically deformable in height and surround the combustion chamber through-openings, and deformation delimiting devices which delimit the flattening of the sealing beads. In order to achieve as good a sealing function as possible in the long term and as good a protection as possible of the sealing beads against inadmissibly high deformations during operation of the engine, the deformation delimiting devices, one of which is formed by a meandering bead stamped into a metal layer, and the other by a plurality of elevations stamped out of a metal layer, are provided radially inside and radially outside of the sealing beads.

Abstract: A gasket having at least one metal layer in which at least two through openings are arranged which are each surrounded by at least one bead and which are separated by a web area. The beads surrounding the adjacent through openings being so brought together in the web area, that at least two bead limbs extend through the web area. And at least in sections an undulating or meander-like profiling adjoins the bead(s) and forms a stopper for the bead. The stopper extending in the web area between the at least two bead limbs and the number of the raised portions of the stopper, formed respectively by the undulating or meander-like profilings, being smaller in the web area than the sum of the raised portions of the stopper outside the web area.

Abstract: A metal laminate gasket to be arranged between two members includes a first metal plate and a second metal plate laminated together. The first metal plate has a first hole to be sealed, a first bead around the first hole, and a plurality of second holes around the first bead as bolt holes. The second metal plate has a third hole and fourth holes corresponding to the first and second holes, respectively, and depressions formed at a side facing the first metal plate around the third hole. Each of the depressions is formed on two sides of a line connecting a center of the third hole and a center of each of the fourth holes so that a compressing force of the bead when the gasket is compressed becomes substantially equal around the first hole.

Abstract: A configuration of seals disposed around and between a plurality of ring segments (10) arrayed annularly about the periphery of moving blades in a gas turbine engine. The seals function to retain coolant in the plenum (18) within each of the ring segments (10). The seals are disposed atop a substrate (16A), which forms the top of the plenum (18). The first seal (25) is made of a piece of sheet material and seals the gap between adjacent ring segments. This seal has an edge (25A) thereof creased for mating with a similar seal on an adjacent ring segment. A second seal (27), which is also made of sheet material, seals the ends of the plenum (18) of the ring segments (10). Lastly, a third seal (29), which is also made of a piece of sheet material, seals the sides of the second seal (27).

Abstract: A gasket may have at least one metallic layer with at least one combustion gas through-opening and at least one fastener through-opening. The fastener through-opening may be at least partially circumferentially bounded by a deformation limiter having a plurality of troughs and crests. All of the troughs and crests are substantially aligned with one another.

Abstract: A metal gasket has at least two metal layers having an aligned fluid-conveying opening. One of the metal layers includes a carrier layer and an active layer. The active layer has a raised metal sealing bead circumscribing the opening. The carrier layer and the active layer are at least partially coplanar and are spaced from one another within the plane by at least one cut-out region between the carrier layer and the active layer. The cut-out region allows the active layer to move out of the plane of the carrier layer, and thus, the active layer is able to self-adjust for sealing engagement between opposing surfaces in assembly and during use.

Abstract: A cylinder head gasket includes a metal plate having at least one cylinder bore and a plurality of bolt holes arranged around the at least one cylinder bore. A bead is formed on the metal plate to surround the at least one cylinder bore. The bead has at least one pointed shape portion pointed outwardly between two of the bolt holes.

Abstract: A metallic gasket including a base plate having a convex metal bead formed, by bending the base plate, between a combustion chamber opening and on the outer periphery portion of the base plate, and a first thickness-increased portion formed thicker than the remaining portions of the base plate to provide a difference in thickness, by which a surface pressure is made to concentrate on the first thickness-increased portion to seal a joint between a cylinder head and a cylinder block when the metallic gasket is disposed between the joint surfaces of the cylinder head and the cylinder block and fastened by clamping bolts. An elastic sealing material is fixed to the convex portion of the metal bead and filled in a concave portion on the reverse side of the base plate to form a rubber bead, and the sealing material is deformed under compression in the through-thickness direction in cooperation with the deformation of the metal bead when the gasket is fastened with clamping bolts.

Abstract: Cylinder head gasket with a metallic gasket plate comprising a combustion chamber opening enclosed by a bead, and a stopper surrounding the opening and delimiting deformation of the bead, the stopper formed by elevations of a gasket sheet metal layer which are obtained by deformation thereof, the stopper is designed such that in sections through the sheet metal layer along circular cylindrical surfaces coaxial with the opening the stopper comprises a row of discrete elevations following one another in a circumferential direction of the opening and corresponding depressions located directly opposite these elevations, and in a plan view of the sheet metal layer in the area of the stopper, the total area occupied by the elevations is at least half of the total area of the stopper, and the shape of the elevations differs from the shape of circular arcs at least partially enclosing the opening.

Abstract: An asymmetric bead formed in a gasket is provided. The gasket defines a plane. The bead includes a first half emboss portion positioned at a first angle to the plane of the gasket. A bead top portion is positioned parallel to the plane of the gasket and is connected to the first half emboss portion. A second half emboss portion is positioned at a second angle to the plane of the gasket and is connected to the bead top portion. The first angle is greater than the second angle so that the length of the first half emboss portion is shorter than the second half emboss portion and therefore, has a smaller surface area being acted on by a higher pressure fluid on the first half emboss portion so that the forces acting on the first and second half emboss portions are equalized.

Abstract: An annular seal for use in sliding or translating applications is provided. An annular can comprises a metallic material formed into a ring. One or more ribs are disposed about an inner surface or an outer surface wall of the ring where the ribs provide a sliding sealing surface smaller having a reduced contact area relative to the width of the ring wall. The sliding sealing surface provides a seal against one or more sliding members. The rib-wall structure forms a circular beam providing greater structural integrity to the seal than would otherwise be possible.

Abstract: A gasket interposed between facing surfaces of two members to be sealed for sealing a space between the surfaces, the gasket comprising a loop-like shape jointed gasket base plate formed by being jointed an inner periphery of one loop-like shape gasket member to an outer periphery of the other loop-like shape gasket member, the two loop-like shape gasket members having different spring constant respectively; and a bead portion formed along a circumferential direction of the loop-like shape jointed gasket base plate. The one of loop-like shape gasket members faces one surface of the two members and the other loop-like shape gasket member faces the other surface of the two members by the bead portion, when the gasket is disposed between the facing surfaces of the two members.

Abstract: Included are embodiments of a gasket system. At least one embodiment of the gasket system includes a circuit enclosure and a 1-piece gasket, the 1-piece gasket including a plurality of tabs for the 1-piece gasket, the plurality of tabs configured for securing the 1-piece gasket with an aperture, the 1-piece gasket formed from a single piece of material.

Abstract: A gasket is provided with a metallic substrate formed from a flat sheet of metal and is deformed to provide a raised beam portion that creates a load bearing compression limiting feature to control stresses on the over molded gasket material.

Abstract: A gasket resistant to vibration and noise generation is interposed between a cylinder head and an exhaust manifold of an engine. The gasket includes a gasket main body interposed between a cylinder head and an exhaust manifold of an engine, a base plate affixed to the gasket main body and having a heat shielding portion integral with a base portion and extending to a side of the exhaust manifold, and a reinforcement plate fixed to the heat shielding portion, in which the reinforcement plate is not present at a region of the base portion in contact with the gasket main body, and a reinforcement rib is formed at the region of the base portion in contact with the reinforcement plate and a region of the heat shielding portion in contact with the reinforcement. The base portion is provided with a projected portion projected into a path of introducing secondary air from a side wall of the cylinder head to an exhaust port.

Abstract: A ring seal includes a sealing ring including an asymmetric body portion having axially-opposed and radially-offset seal beads. The ring seal may also include a reinforcement ring carried at least partially in the sealing ring to distribute load across the seal beads. The ring seal may further include a skirt depending generally axially from the body portion and defining an inner diameter of the sealing ring and preferably having frusto-conical cross-sectional shape.

Abstract: According to the invention, a sealing disc (16) serves to seal off a fuel injector with respect to an engine block of an internal combustion engine. Said sealing disc (16) comprises an inner opening (24) and a captive securing means (28) for captive retention on the fuel injector. It is proposed according to the invention that the sealing disc (16) has, overall, at least one support layer (30) and at least two sealing layers (32, 34) arranged to each side of the support layer (30), wherein the support layer (30) is made from a stiffer material than the sealing layers (32, 34), and that the captive securing means comprises, at an edge of the inner opening, at least one radially inwardly extending lug-like projection (28).

Abstract: A metallic gasket including a base plate having a convex metal bead formed, by bending the base plate, between a combustion chamber opening and on the outer periphery portion of the base plate, and a first thickness-increased portion formed thicker than the remaining portions of the base plate to provide a difference in thickness, by which a surface pressure is made to concentrate on the first thickness-increased portion to seal a joint between a cylinder head and a cylinder block when the metallic gasket is disposed between the joint surfaces of the cylinder head and the cylinder block and fastened by clamping bolts. An elastic sealing material is fixed to the convex portion of the metal bead and filled in a concave portion on the reverse side of the base plate to form a rubber bead, and the sealing material is deformed under compression in the through-thickness direction in cooperation with the deformation of the metal bead when the gasket is fastened with clamping bolts.

Abstract: A gasket for an engine is disclosed. The gasket may include a plate with at least one aperture formed therein, a half-bead or ramp portion formed in the plate adjacent an edge of the plate, and a wave portion or plurality of ridges formed adjacent the edge.

Abstract: A metal gasket includes embossments that exhibit essentially full functional recovery and full retained internal stress at temperatures up to about 1000° F. which is made from sheet material that is cold rolled and whose embossments are work hardened without any post embossment heat treating that would act to harden the material. This material may also receive a precipitation hardening heat treatment prior to being embossed. The gasket materials include alloys having greater than about 18% Ni, greater than about 14% Cr, from about 0.1 to 10% of at least one of Mo, Ti, V, Al, Co, Nb, Ta or Cu and the balance Fe with incidental impurities, which are cold rolled without any post embossment heat treating that would act to harden the material.

Abstract: A cylinder head gasket for an open deck engine includes a first metal plate having a base portion and a folded portion, and a second metal plate having a first half bead provided between inner and outer portions and extending in a direction away from the base portion. An annular bead plate with a first full bead is provided on the inner portion. An intermediate plate is provided between the outer portion of the second metal plate and the base portion of the first metal plate. The intermediate plate has a second half bead extending toward the base portion of the first metal plate. The inner periphery of the second half bead is located on or along an outer-periphery of the cylinder portion.

Abstract: A cylinder head gasket for an open deck engine includes a first metal plate having a folded portion extending from a curved portion and located under the base portion, and a second metal plate having an inner portion disposed on the folded portion, an outer portion outside the inner portion and a first half bead provided between the inner and outer portions. An annular bead plate having a full bead is provided on the inner portion of the second metal plate, and an intermediate plate is provided on the outer portion of the second metal plate, wherein an inner end portion of the intermediate plate is disposed under an outer edge of the annular bead plate. A total thickness of the metal plates at the flange is equal to a total thickness of the metal plates outside the flange including the inner end portion.

Abstract: A metal laminate gasket includes a first metal plate having a folded portion at a peripheral of a combustion chamber hole, a second metal plate provided in the folded portion, a third metal plate provided in the folded portion and having an extension portion extending outwardly from the folded portion, a fourth metal plate provided on a folded side of the first metal plate and partially overlapping a part of the extension portion of the third metal plate, and a fifth metal plate provided on the folded side of the first metal plate so that the fifth metal plate does not overlap the third metal plate. A bead is provided on at least one of the second and third metal plates and situated inside the folded portion. A total thickness of the metal laminate gasket declines in a stepwise fashion from the folded portion.

Abstract: The present invention relates to flat metallic gaskets, such as, for example, cylinder head gaskets on internal combustion engines, with at least three layers, namely a mid-layer, a function layer and a layer of a compression limiter. The mid-layer is arranged between the function layer and the compression limiter. The mid-layer has at least two essentially round fixing openings, outside a sealing region. The compression limiter is beaded around the edges of the fixing openings in the region thereof, and in this way fixes the compression limiter to the mid-layer. The function layer has recesses in the region of the fixing openings of the mid-layer, in order to accommodate the beaded region of the compression limiter, without increasing the total thickness of the gasket in the region of the fixing of the compression limiter.

Abstract: A planar seal, in particular, a cylinder head gasket for an internal combustion engine, is provided with several through openings forming a web between the same, several screw and media through openings, at least one bead in the region of each through opening and each web which are contiguous, whereby at least one through drilling is provided on the web side and embodied such that the beads on the through opening side pass to both sides of the through drilling in the direction of the web and are connected to the beads running through the web in the region of the web.