Abstract: An abradable coating for a turbomachine, as well as a turbomachine module and a turbomachine including such an abradable coating, the abradable coating including, with a content of greater than 50% by volume, an inorganic compound whose Mohs hardness is less than 6 and whose melting temperature is greater than 900° C.

Abstract: A cylinder head gasket is disclosed having a carrier layer, in which at least one through-opening for a combustion chamber is located, and a combustion chamber sealing element, which is inserted in the through-opening and extends in an intrinsically closed manner. In some examples, at least one gap is formed at least in some sections between the carrier layer and the combustion chamber sealing element, the gap extending around the combustion chamber sealing element at least in some sections. Further, in some example, the carrier layer has at least one slot-like or groove-like channel, which extends from the at least one gap between the carrier layer and the combustion chamber sealing element to the outer edge of the carrier layer.

Abstract: A method of producing a rubber seal includes placing a screen with an opening, above a workpiece including a base portion and a bead base protruding from the base portion and applying a liquid material for forming the rubber seal, onto a top part of the bead base through the opening. In the production, the liquid material is applied onto the top part by moving a squeegee along a surface of the screen in a state where a stopper portion is disposed at a position adjacent to the bead base within an area of the base portion and between the screen and the workpiece.

Abstract: An air seal for use in a gas turbine engine. The seal includes a thermally sprayed abradable seal layer. The abradable material is composed of aluminum powder forming a metal matrix, and co-deposited methyl methacrylate particles and/or hexagonal boron nitride particles embedded as filler in the metal matrix.

Abstract: An air seal for use in a gas turbine engine. The seal includes a thermally sprayed abradable seal layer. The abradable material is composed of aluminum powder forming a metal matrix, and co-deposited methyl methacrylate particles and/or hexagonal boron nitride particles embedded as filler in the metal matrix.

Abstract: To eliminate pins for specifying a vertical position of a metal fixture from a dust cover forming mold to suppress variation in product shape caused by wear of the pins, the ring-shaped metal fixture is embedded in the dust cover to fix the dust cover at an installation position, inner diameter teeth are formed integrally at one end in the axial direction of an outer diameter tube section via a bend, the metal fixture is embedded in the dust cover so that one end in the axial direction of the bend is set at axially the same position as one end face in the axial direction of the dust cover, and groove communication sections radially penetrating the bent section are formed in a radial shape at the one end.

Abstract: The disclosure is directed to a method of forming a seal device. The method includes forming a laminate construction including a flexible material layer and a rigid material layer, patterning the rigid material layer after forming the laminate construction, and shape forming the laminate construction into the seal device.

Abstract: A bore seal is includes a polymeric interface portion adapted for coupling to an initiator activation signal transmission medium, and an initiator-receiving portion adapted for receiving an initiator therein. The bore seal generally houses a pyrotechnic initiator or igniter therein, for incorporation into a gas generating system or other system having a pyrotechnically actuatable element.

Abstract: A plastic component, usable in a combustion engine, is made by forming an elastomeric seal onto at least one support element. The support element, complete with the seal, is placed in a cavity or fixture of a plastic injection mold, and the plastic component is created only by forming plastic material onto the support element. The finished plastic component with the molded-on seal is removed from the cavity.

Abstract: A power transmission system which facilitates positioning of gaskets to ensure their sealing performance. The power transmission system includes a constant velocity universal joint provided with an inner ring having a plurality of track grooves formed on its outer periphery and an outer ring having a plurality of track grooves formed on its inner periphery. The inner ring is disposed on the side of the inner periphery of the outer ring, wherein balls are accommodated within ball tracks formed with the track grooves of the inner and outer rings and retained by a cage.

Abstract: The invention refers to a gasket (1), the gasket having at least one metal layer (3) and at least one metal ring (5) welded thereto, the metal layer (3) having at least one through-hole (4) and the metal ring (5) being arranged around the through-hole, (4). The metal layer (3) and the metal ring (5) are welded to each other along a welding bead (7) which keeps the metal layer (3) and the metal ring (5) in a spaced apart relationship to one another. The gasket (1) has welding joints which are stable for a long time, and thus a high sealing capacity.

Abstract: Metal wire bundles are combined into brushes as a run-in coating for the axial-flow compressor stage of a gas turbine engine. The metal wire bundles are inserted into the basic material or are combined into brush segments that are inserted into corresponding recesses of the rotor housing.

Abstract: Provided is a gasket capable of maintaining a high sealing property under a high temperature, in which a gasket basic substance and coverture are not sublimated or decomposed when the gasket is used under a high temperature above 500° C. The gasket for a high-temperature joint includes a gasket basic substance formed by filling a heat-resistant filler mainly composed of diatomaceous earth into gaps of a meshed metallic reinforcing member, and coverture made of a heat-resistant antifriction material mainly composed of a mixture of boron nitride and polytetrafluoroethylene resin for covering a surface of the gasket basic substance.

Abstract: Seal devices of this invention are prepared by the process of depositing a polymer material onto a metallic substrate to form a composite construction, and shape forming the composite construction into the shape of a seal device. The so-formed seal device comprises a casing member that is formed from the metallic substrate, and a sealing element disposed along a surface of the casing member that is formed from the polymer material for placement against a sealing surface. Seal devices of this invention can be shaped formed into a variety of different types of seals, e.g., lips seals, L-shaped seals, and U-cup seals, which may or may not be energized. Seal devices prepared according to this invention using such preformed composite construction enable seal formation by a single step of shape forming, without having to both make and form individual seal members, and subsequently combine or join the separately formed seal members together.

Abstract: A gasket is disclosed, which is adapted for the use in sealing of a tri-face area where a cylinder block, cylinder head and timing-chain housing meet together and come into abutment against one another. With the gasket of this invention, a deposit of bonding agent is applied on an end lug of a solid gasket material to improve the adhesive property and close adherence of the solid gasket material with a fluid gasket material that is filled in the tri-face area. The fluid gasket material charged in the tri-face area is securely fastened to the solid gasket material through the bonding agent. The end lug of the solid gasket material on which the bonding agent is applied is exposed to the tri-face area where both the cylinder head and the cylinder block are cut at their confronting edges to form bevels.

Abstract: A seal features a first curved region generally concave in a direction of concavity, and a second curved region generally concave in the direction of the concavity of the first curved region. The second curved region is oriented within the direction of concavity of the first curved region. A first bend connects the first curved region to the second curved region, and a second bend connects the first curved region to the second curved region.

Abstract: A bypass seal for a rotary regenerative air preheater includes primary and secondary seal leaves that are joined at a single position longitudinally intermediate their first and second sends. The first end portion of the primary seal leaf extends longitudinally beyond the first end of the secondary seal leaf and the second end portion of the secondary seal leaf extends longitudinally beyond the second end of the primary seal leaf. When installed in the air preheater, the first end portion of the primary seal leaf of each bypass seal in one of the seal rings overlaps the second end portion of the secondary seal leaf of an adjacent bypass seal in the seal ring.

Abstract: A pair of substantially opposed mating surfaces are joined to each other and sealed in place by means of an electrically-conductive member which is placed in proximity to the mating surfaces. The electrically-conductive member has at least one element secured thereto which is positioned to contact the mating surfaces, and which softens when the electrically-conductive member is heated by passing an electric current therethrough. The softened element conforms to the mating surfaces, and upon cooling of the softened element the mating surfaces are joined together in an effective seal. Of particular significance is an embodiment of the electrically-conductive member which is a gasket having an electrically-conductive gasket base and a pair of the elements secured to opposite sides of the gasket base. This embodiment is positioned between the opposed mating surfaces to be joined to each other.

Abstract: The present invention provides a seal for rolling bearings having improved sealing properties, undergoing no separation between a core and a peripheral portion nor deformation even in long-term use. The seal comprises a flexible resin portion which comes into contact with an outer race and a rigid resin portion which is more rigid than the flexible resin portion, the rigid resin portion and the flexible resin portion being fusion bonded together into an integral body.

Abstract: An apparatus (10) includes a bearing (24) linking first and second vehicle parts (12, 14) for movement relative to each other, and a boot seal (30) protecting the bearing (24). The boot seal (30) is a tube of heat shrinkable thermoplastic material. The tube (30) has a first end portion (34) shrunken against the first vehicle part (12), a second end portion (42) shrunken against the second vehicle part (14), and a flexible intermediate portion (44) which is deflectable between the opposite end portions (34, 40) upon movement of the vehicle parts (12, 14) relative to each other.

Abstract: An apparatus (10) includes a bearing (24) linking first and second vehicle parts (12, 14) for movement relative to each other, and a boot seal (30) protecting the bearing (24). The boot seal (30) is a tube of heat shrinkable thermoplastic material. The tube (30) has a first end portion (34) shrunken against the first vehicle part (12), a second end portion (42) shrunken against the second vehicle part (14), and a flexible intermediate portion (44) which is deflectable between the opposite end portions (34, 40) upon movement of the vehicle parts (12, 14) relative to each other.

Abstract: A gasket assembly for securing a pair of surfaces together wherein an electrically conductive gasket base having a central opening is provided with a pair of layers secured to opposite sides of the gasket base, with the layers being a fusible alloy, a brazing alloy or a synthetic, thermoplastic material which will melt, without degrading, when the gasket base is heated. The surfaces may be secured to each other by a plurality of bolts to squeeze the gasket assembly therebetween or by some other clamping means. An electrical current is passed through the gasket base to heat it to a temperature sufficient to melt the layers to seal the surfaces to opposite sides of the gasket base.

Abstract: A seal for movable structural components, such as piston rods or shafts, includes a carrier body made of plastics and a sealing member made of polytetrafluoroethylene (PTFE) material and bonded to the carrier body. A plastic material may be mixed with the PTFE and fused to the plastic carrier body during injection molding.