Abstract: A multi-layer metal gasket includes at least on active layer and at least one shim layer having aligned combustion holes. The shim layer has annular portions surrounding the combustion holes and tab portions projecting radially outwardly from the annular portions surrounding the combustion holes. The annular portions underlie associated sealing beads of the active layer. The tab portions each have a radially extending neck region and a set of lateral bend tabs supported at the end of the neck region and projecting laterally outwardly thereof. The bend tabs project through an associated set of laterally spaced mounting windows formed in the active layer and are bent back toward one another to secure the shim layer to the active layer.

Abstract: An arrangement for a non-hermetic seal between a stator and a rotor of a turbomachine in the root region of guide blades belonging to the stator. The arrangement includes a brush sealing ring which is mounted on the guide blades via a spoke centering means and whose bristles together with a rotating sealing surface form a fluid barrier which is permeable in a defined manner. On the sealing side of lower pressure, a supporting ring for the bristles is arranged at a slight distance from the rotating sealing surface, and this supporting ring is integrally connected to the guide blade roots and can be segmented by parting seams. The spoke centering means is permeable to pressure, as a result of which the brush sealing ring is pressure-relieved axially, with the exception of the bristle area between the sealing surface and supporting ring.

Abstract: The present invention is directed to a valve seal assembly for use in multi-chamber vacuum devices. The seal assembly comprises a door and a deformable seal ring running along the periphery of the door, wherein the seal ring is held in place by a reversibly mounted securing means such as a disk, ring or clamp.

Abstract: A system (10) for sealing and pressurization for the support cushion (24) of a gas turbine (20), wherein the gas turbine (20) is provided with a compressor (21), with which there is associated an inner barrel (23), and the support cushion (24) is in turn provided with seals (38, 39) relative to the axis of the compressor (21), and has at least one pipe (33) for the venting discharge. The air is fed into the inner barrel (23), using the venting piping (33) of the support cushion (24), such as to create a flow of air, which starts from an intermediate stage of the compressor (21), and goes towards the inner barrel (23).

Abstract: A seal has a metallic body having a convoluted cross-section extending between first and second ends and a first generally interior surface extending between the first and second ends and a second generally exterior surface extending between the first and second ends. An adhesive is located in one or more locations on at least one of the surfaces, the adhesive holding the body in a longitudinally contracted condition. There are related methods of manufacture. In related methods of use, the adhesive is caused to release, allowing the seal to expand toward the relaxed condition.

Abstract: In order to provide a cylinder head gasket, comprising at least one beaded gasket sheet, which comprises at least one combustion chamber opening and a bead, which may be vertically deformed and surrounds the combustion chamber opening, and at least one deformation limiting means adjacent to the bead, which can be produced simply and with low material usage and which is flexible with respect to the arrangement and configuration of the deformation limiting means, it is proposed that the deformation limiting means comprises at least one deformation limiting element disposed on a deformation limiting sheet of the cylinder head gasket, said element having at least one reinforcement region, which is located at a distance from the combustion chamber opening and is formed by separating a region of the deformation limiting sheet along a separating line and subsequently bending this region out of the plane of the deformation limiting sheet.

Abstract: Slit ring seal, especially running gear seal, consisting of an angle-shaped slip and/or opposing ring with a circumferential surface designed to accent a ring-shaped, approximately cross-sectional plate-spring shaped sealing body, where the sealing body, as needed, includes a secondary seal directed toward the area of the sealing shaft of the slip, and/or opposing ring, and supports itself with segment areas of its outer circumferential surface on corresponding surface areas of an installation bore, where a ring-shaped securing element is provided radially between the outer circumferential surface of the slip and/or opposing ring and the installation bore, contacting the sealing body in the installed condition.

Abstract: According to the invention a seal—arranged between a radially inwardly facing outer boundary surface of an annular sealing gap and a radially outwardly facing inner boundary surface of the sealing gap—is characterized by a sealing ring having a sealing surface which bears sealingly against one of the boundary surfaces of the sealing gap and having a pressure surface which on the side of the sealing ring in radially opposite relationship to the sealing surface forms with the other of the boundary surfaces of the sealing gap an intermediate space which is wedge-shaped in cross-section, and a pressure ring which is biased by a biasing means at least at times into the intermediate space against the other of the boundary surfaces of the sealing gap and the pressure surface for pressing the sealing surface against the one boundary surface of the sealing gap.

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 lip sealing ring for a relatively movable machine element (1), including a flexible sealing lip (2) made of polymeric material which adjacently encloses the machine element (1) in the region of a sealing gap (3) under elastic prestressing, the sealing gap (3) being penetrated in the longitudinal direction (5) in at least one circumferential location by a spiral stage (4); the spiral stage (4) being bounded by a screw thread-shaped groove (6) in the sealing lip and by the surface (7) of the machine element (1) to be sealed, facing the groove; and the groove (6) connecting the space (8) to be sealed to the surroundings (9). Sealing gap (3) is closed by a thixotropic medium (10) in the region of groove (6) bounding the spiral stage (4).

Abstract: A PTFE seal and method of fabrication therefor includes preparing a mixture of PTFE resin powder and a susceptor material which is then compacted and sintered by exciting the susceptor material with microwave energy. Preferably, the compaction and sintering of the mixture is carried out in a continuous process and a vacuum is drawn on the mixture in the heating zone to extract any air from the mixture. The sintered mixture is advanced, preferably continuously, to a cutting zone where PTFE wafers are cut from the sintered mixture, preferably while the mixture is still warm.

Abstract: A cap has a plug portion, a seal plug and a sleeve. At the plug portion a side and a cylindrical wall project from a top board. An inner circumferential surface of the side wall fits on an outer circumferential surface of an opening portion of a vessel and covers the opening portion with the top board. The cylindrical wall forms a receiving chamber having an opening mouth at its under end face. The seal plug seals the opening mouth. The sleeve is loosely fitted on the cylindrical wall and opens the opening mouth by separating the seal plug from the cylindrical wall at relative movement of the cap. A sepal portion on the outer circumference of the sleeve is larger than inner diameter of the opening portion at its outer diameter and has flexibility to pass the inner diameter bending so as to avoid backward moving.

Abstract: A primary technical goal of the present invention is to provide a mechanical seal device in which a manufacturing cost of the parts is decreased, a satisfactory seal performance is exhibited even under severe operating conditions, and the device can be easily mounted outside relative to the housing.

Abstract: A composite face seal has an annular seal rotor and an annular seal stator, both having a metal base portion and a radially extending flange. The flange has first and second axially facing surfaces. A first ceramic ring may be mounted to the first surface of the flange of either or both of the seal rotor and the seal stator by a first braze joint. A second ceramic ring may be mounted to the second surface of the flange of either or both of the seal rotor and the seal stator by a second braze joint. Each of the braze joints may include a molybdenum ring disposed between two braze rings or, for thicker seal assemblies, molybdenum and nickel rings disposed between braze rings.

Abstract: A seal with integrated sealing and rotation measuring capabilities includes a first slinger having an L-shaped cross section and is adapted to be fixed to a rotational bearing element of a bearing assembly, the first slinger including a first cylindrical portion extending axially and a first flanged portion extending radially from the first cylindrical portion. A seal ring is arranged axially inward from the first slinger and is adapted to be secured to a non-rotational bearing element, and the seal ring has elastic seal lips having respective tips adapted to make sliding contact with the side of the first slinger facing the seal ring. A second slinger has an L-shaped cross section arranged axially inward from the said seal ring and is adapted to be fixed to the rotational bearing element. The second slinger includes a second cylindrical portion extending axially and a second flanged portion extending radially from the second cylindrical portion.

Abstract: The present invention relates to a sealing arrangement which is formed between a rotating assembly (4, 6) and a static assembly (3, 14, 15). In this sealing arrangement, the rotating assembly (4, 6, 16) has at least one cutting element (1) which engages in a counterpart surface on the static component. The present sealing arrangement is distinguished by the fact that the cutting element (1) is designed as a chipping device with a geometrically determined cutting edge with respect to the counterpart surface (2) or forms a chipping device of this type when the rotating assembly is rotating. The proposed sealing arrangement reduces the wear to the cutting element even in the event of adverse rotation or temperature conditions.

Abstract: A cylinder head gasket (211) includes one or more alignment holes (301) and one or more drain-back holes (303) disposed in an area of the cylinder head gasket (211). One or more push rods (211) are extendable through the alignment holes (301). The one or more drain-back holes (303) are formed such that the one or more push rods (211) are incapable of fitting through the one or more drain-back holes (303).

Abstract: An MLS cylinder head gasket includes a relatively thick intermediate layer having resilient sealing beads flanked by stopper beads. The stopper beads limit compression of the sealing beads, which surround combustion cylinder bore apertures. The three-layer gasket, particularly designed for heavy duty racing engines, provides a relatively robust cross-section in web-areas between cylinder bore apertures. A thin bottom layer includes wrap-around flanged portions extending about cylinder bore edges of the intermediate layer to partially overlap cylinder bore aperture areas of that layer. A thin top layer overlies the intermediate layer, as well as the overlapping portions of the bottom layer. In one described embodiment, the overlapping portions are limited to cylinder bore edges between cylinder bores. As a between-engine-overhaul indication of engine health, the top gasket layer is adapted via plastic deformation to form a permanent indentation in an aluminum cylinder head to signal excessive engine operation.

Abstract: A metal gasket for an internal combustion engine is formed of a metal plate including a base portion extending substantially throughout an entire area to be sealed, at least one hole formed in the base portion, a curved portion extending from the base portion, and a flange extending from the curved portion and disposed on a part of an upper surface of the base portion. A coating member is deposited on the flange facing the base portion and/or the base portion facing the flange. The coating member is formed of a non-thermoplastic coating material to operate as a surface pressure regulating member between the flange and the base portion to thereby regulate a surface pressure at the flange.

Abstract: A sealing device for use with a drive shaft of a water vessel. The sealing device comprises a housing for a seal and bearing, a compression ring, a lip seal flange attachment and a diaphragm for tracking the movement of the shaft. The diaphragm is made of a resilient, flexible material and is operatively connected to the seal housing. In operation, the diaphragm tracks the motion of the drive shaft so that the drive shaft may move freely in the hull of the vessel. The diaphragm allows the rigid seal housing to also move in response to any axial, lateral or circular-axial (wobble-like) movement of the shaft so that a constant seal around the shaft is provided.