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Metal laminate cylinder head gasket

Patent Number: 8109521
Publication Date: 2012-02-07
Inventor: Yasuda, Kisho

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 ...

Cylinder head gasket and method of making cylinder head gasket

Patent Number: 8109520
Publication Date: 2012-02-07
Inventor: Imai, Toshihiro

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 ...

Tubular shaft seal

Patent Number: 8109519
Publication Date: 2012-02-07
Inventor: Baumann, Hans D.

The invention describes a leak proof shaft seal for valves and other pressurized vessels, wherein the shaft seal can deform elastically by either stretching or twisting without loosing its ability to seal all, or a portion, of said shaft from harmful fluids. Furthermore, the elastic shaft seal is immune to static pressures, since it closely surrounds a shaft and thus is protected from ...

Block fitting and seal structure

Patent Number: 8104773
Publication Date: 2012-01-31
Inventors: Schroeder, Fred Georg; Nader, Joseph

An air conditioner system fitting is disclosed including a first seal portion with a metal material adapted to provide a primary scat, and a second seal portion attached to a free edge of said first seal portion and adapted to provide a secondary seal, wherein the fitting militates against leakage during operation of the air conditioning ...

Gas turbine nozzle seals for 2000° F. gas containment

Patent Number: 8104772
Publication Date: 2012-01-31
Inventor: Halling, Horace P.

A seal for containment of fluids or gases during high temperature applications, separating a high pressure area on one side from a low pressure area on an opposite side, and formed to convert axial displacements into radial movements eliminating axial strains, having at least one engaging, conical ring structure with a tapering arcuate side facing radially away from the high pressure side. The conical ring structure has a side opposite the tapering side that is cylindrical, and a ...

Oil-control ring for an internal combustion engine

Patent Number: 8104771
Publication Date: 2012-01-31
Inventors: Ferrarese, André ; Uehara, Samantha

An oil-control ring for an internal combustion engine, to be mounted between the sidewalls of a respective groove of a piston has two ring segments and an annular expander disposed between the two ring segments and presenting a support body defining a seating plane for each ring segment. The ring has at least one expander portion axially projecting from the support body of the expander, beyond at least one of the seating planes of a ring segment, and at least one superficial irregularity ...

Semiconductor process chamber

Patent Number: 8104770
Publication Date: 2012-01-31
Inventors: Amos, Peter G.; More, Dominick G.; Payne, Jeremy; Cornett, Kenneth W.; Datta, Amitava

A process chamber 10 comprising a container (12), a lid (14), and a sealed interface (16) therebetween. The container's interface surface (30) and/or the lid's interface surface (32) includes at least one groove (36) in which a seal (40) is situated. The seal (40) comprises an elastomeric element (50) and a metallic element (60). The elastomeric element (50) and the metallic element (60) can be ...

Bi-directional wellhead seal

Patent Number: 8104769
Publication Date: 2012-01-31
Inventor: Halling, Horace P.

A liquid and gas tight bi-directional metal frustro-conical seal is energized by compression between planar, annular faces causing its inner and outer diameters to sealingly engage opposing cylindrical surfaces of inner and outer metal pipes. The contact forces between the concentric sealing surfaces are high in order to locally deform the softer metal and eliminate leakage paths. The sealing ring is backed-up by a similar ring that is reduced in cross-sectional width, such that when ...

Sealing device

Patent Number: 8100412
Publication Date: 2012-01-24
Inventors: Helfert, Daniel; Sundheim, Werner

A sealing device (1) for providing a seal between a steering gear casing and a front wall sheet of a body of a motor vehicle around a steering shaft feed through lumen 21, the sealing device comprises a base body (2) to be connected to the steering gear casing and a foamed ring-shaped sealing body (3) which extends from a front area of the base body (2) and which comprises a far end designed and arranged to rest against the front wall sheet. The foamed ...

Cylinder head gasket

Patent Number: 8100411
Publication Date: 2012-01-24
Inventors: Schumacher, Thomas; Hinderer, Harry; Diez, Armin; Bendl, Klaus

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 ...

Sealing ring interposed between the block and the cylinder head of an internal combustion engine, having a composite structure

Patent Number: 8100410
Publication Date: 2012-01-24
Inventors: Perosino, Andrea; Alacqua, Stefano; Capretti, Gianluca; Veca, Antonino

A sealing ring is set between the engine block of an internal-combustion engine and a cylinder head fixed to the engine block, within a seat set concentrically around a cylinder of the engine. The sealing ring has a composite structure, with an external hollow annular body made of superelastic material, and an internal hollow annular body including a shape-memory ...

Metallic cylinder head gasket

Patent Number: 8100409
Publication Date: 2012-01-24
Inventor: Schmitz, Joerg

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 ...

Sealing element

Patent Number: 8100408
Publication Date: 2012-01-24
Inventor: Kurth, Jürgen

A sealing element is provided for placement between first and second components, wherein the first component includes a cylindrical cavity with a step-shaped shoulder which narrows the cavity, and the second component is a cylindrical component for placement in the cavity. The sealing element comprises a stiffening body with a L-shaped longitudinal cut surface, with the first leg of the L shape being provided extending between the jackets of the cavity and of the second component, and the ...

Packing cartridges and pressure-dampening elements for plunger-type pumps

Patent Number: 8100407
Publication Date: 2012-01-24
Inventors: Stanton, Eddie N.; Strickland, Michael L.

A package cartridge is provided for use in the maintenance of a packing bore for a plunger-type pump. According to one aspect, a packing cartridge includes: a generally-cylindrical sleeve adapted to be at least partially positioned in the packing bore, a first abutment ring positioned in the sleeve, and a second abutment ring positioned in the sleeve and co-axially spaced apart from the first abutment ring. Telescoping structures are operatively positioned between the first abutment ring ...

Sealing device

Patent Number: 8100406
Publication Date: 2012-01-24
Inventor: Wright, Christopher

A gap 6 between a stationary component 2 and a rotating component 4 is sealed by means of a leaf seal comprising an array of leaves 8, 9. The leaves 8, 9 are disposed in pairs, comprising a higher curvature leaf 8 and a lower curvature leaf 9 which contact each other resiliently at their tips 12. The contact at the tips 12 provides a damping effect. As a result, the tips 12 of the leaves 8, 9 are relatively stable ...

System and method for providing compliant rotating seals

Patent Number: 8100405
Publication Date: 2012-01-24
Inventors: Roush, Eric David; Kneeland, Andrew Ray

A system for providing compliant rotating seals including a rotating portion that has one or more teeth extending radially from it, and a stationary portion that has a plurality of bristles extending radially from it. The one or more teeth rotatively engage the plurality of bristles creating a tortuous path between them that resists a leakage of gas or fluid through ...

Leaf seal arrangement

Patent Number: 8100404
Publication Date: 2012-01-24
Inventor: Williams, David S

In order to provide simpler manufacture and lift up and blow down control, leaf elements are provided which have profile edges arranged to associate with each other in order to create a ring carousel, either about the front or rear edge of a leaf seal arrangement. In such circumstances gas flow through the leaf seal arrangement encounters the profile edge in order to adjust leaf section position for appropriate sealing ...

Hydrodynamic intershaft seal and assembly

Patent Number: 8100403
Publication Date: 2012-01-24
Inventor: Short, John F.

A seal and seal assembly for providing a seal between an outer shaft and an inner shaft. The assembly includes a seal subassembly disposed between the shafts. The subassembly includes a split carbon ring, a solid outer ring, and a spring mechanism provided between the split carbon ring and the solid outer ring. The carbon ring is radially split into a plurality of segments having splits between ends of adjacent segments. The segments include a circumferential inner radius and a sealing dam ...

Pressure sealing means for a cable transit

Patent Number: 8096562
Publication Date: 2012-01-17
Inventors: Johansson, Bengt; Birgerud, Bo

The claimed invention relates to a pressure sealing means (20) for a cable transit (10). The pressure sealing means (20) comprises two wedge shaped pressure applying elements (21) placed vertically opposite each other with their acute sides facing towards each other and two wedge-shaped tensioning elements (22) placed horizontally with their acute sides facing each other. The pressure sealing means (20) further comprises at least one tensioning ...

Flange gasket

Patent Number: 8096561
Publication Date: 2012-01-17
Inventor: Eisenach, Frank-Peter

Ring-shaped flange gasket produced from a rubbery-elastic material, said flange gasket comprising two rings (2, 3), each having a ring-shaped reinforcing insert (9, 10), said rings being formed in a wedge-shaped manner transversely relative to the ring axis (4) and, at sides (5, 6) that face each other, adjoining one another at right angles to the ring axis (4) by means of planar surfaces and there being in engagement with one another so as to be ...

Metal-to-metal seal for smooth bore

Patent Number: 8096560
Publication Date: 2012-01-17
Inventors: Lyle, Rockford D.; Pallini, Jr., Joseph W.; Lin, Chii-Ren

A high pressure seal assembly configured for sealing contact with an opposing surface. The seal assembly comprises an annular seal body with a sealing surface on one side of the seal body. An end of the sealing surface includes a sealing face for sealing contact with the opposing surface. The sealing surface also includes at least one support point that contacts the opposing surface when the seal is placed in sealing contact. Strategically positioning the support point on the sealing ...

Rotary seals

Patent Number: 8096559
Publication Date: 2012-01-17
Inventor: Cook, Hugh Q.

Seal assemblies are herein discussed. The seal assemblies can have a stiff backing ring supporting a seal ring, which is positioned adjacent an inner seal ring. In preferred embodiments, the inner seal ring is made from a material that enables the inner seal ring to absorb media particles in situ to change its particle density. This allows the seal assembly to form wearable surfaces on the fly to decrease wear on the seal ...