The present invention addresses the problem of enabling an amount of compression of a bead part to be ensured and sealing properties to be improved in a gasket that is supported on one side with a bolt hole provided only on one side of the bead part. A gasket (1) is provided that has an opening (103) to be sealed, a bead part (12) provided along a circumference of the opening (103), and a bolt hole arranged on one side of the bead part (12). The gasket (1) is arranged between a case (101) and a cover (102) and is fastened with a bolt to seal the opening (103) while being supported on one side by the bolt (200). A height adjusting part (14) is provided in a side edge portion (1a) that is located on the opposite side of the bolt hole from the bead part (12). The height adjusting part (14) regulates a gap between the case (101) and the cover (102) during fastening with the bolt and serves as a fulcrum to press the cover (102) into contact with the bead part (12).

A gasket is provided to reduce a reaction force in an attached state and suppress deterioration of sealing performance due to a corrosive foreign matter such as salty water and a snow melting agent. A gasket includes a metal base plate made of metal, and a covering layer formed of an elastic body that covers at least a part of the metal base plate. The metal base plate includes a pair of an upper face and a lower face that are back-to-back to each other, a bead portion protruding toward a side facing the upper face, an inner periphery portion extending from an inner periphery edge of the bead portion, and an outer periphery portion extending from an outer periphery edge of the bead portion. The outer periphery portion extends toward a side facing the lower face, in an oblique manner with respect to a protruding direction of the bead portion.

A coating solution comprising an organic solvent solution containing polyol-crosslinkable fluororubber, a polyol vulcanizing agent, and N-phenyl-3-aminopropyltrialkoxysilane, preferably a coating solution further containing an epoxy resin in addition thereto, and a fluororubber metal laminated sheet formed by applying the above coating solution to a metal sheet, followed by vulcanization. The coating solution can not only impart stability over time to the fluororubber paste, but also improve the interlayer adhesion and abrasion resistance of the fluororubber metal laminated sheet. Therefore, when it is used as a cylinder head gasket, it is possible to cope with the reduction in rigidity due to the increase in combustion pressure of the engine, and with weight saving. As a result, it will greatly contribute to the improvement of fuel efficiency of automobiles.

A pipe joint includes first and second sleeves having fluid flow paths communicating with each other; an annular gasket interposed between abutting end surfaces of the sleeves; a male screw member having a through hole into which the first sleeve is inserted; and a female screw member having a through hole into which the second sleeve is inserted, the sleeves being joined by screwing the male screw member with the female screw member, wherein the pipe joint has a leak port opened at a portion of the outer peripheral surface of the male screw member not covered by the female screw member and communicates with a gap between the male screw member and the first sleeve to detect a leak fluid leaked from gaps between the sleeves and the gasket.

A pipe joint includes first and second sleeves having fluid flow paths communicating with each other; an annular gasket interposed between abutting end surfaces of the sleeves; a male screw member having a through hole into which the first sleeve is inserted; and a female screw member having a through hole into which the second sleeve is inserted, the sleeves being joined by screwing the male screw member with the female screw member, wherein the pipe joint has a leak port opened at a portion of the outer peripheral surface of the male screw member not covered by the female screw member and communicates with a gap between the male screw member and the first sleeve to detect a leak fluid leaked from gaps between the sleeves and the gasket.

A plate heat exchanger gasket is configured to be positioned between adjacent heat transfer plates in a plate heat exchanger and includes a continuous seal part integrated with spaced-apart wedge parts. The media pressure produced by the fluids flowing in the plate interspaces act on the continuous seal part and applies a force tending to push the continuous seal part outwardly. The wedge parts are sized to contact and act against portions of the heat transfer plates so that movement of the wedge parts is prevented. Because the wedge parts are integrated with the continuous seal part, the wedge parts thus prevent the continuous seal part (plate heat exchanger gasket) from being pushed outwardly and so blow-outs are not so likely to occur.

A method for obtaining and applying a sealing gasket element on a slide-valve sliding in a cavity of an apparatus for the recirculation and mixing of chemically reactive polymeric components, comprises the steps of: obtaining from an elastic-plastic material a precursor element of the seal element, with a grid structure having a reticular shape; positioning the precursor element around the slide-valve; exerting on the precursor element, through temporary clamping elements, a radial compression and contraction action to insert it and couple it to one or more housing seats provided on the slide-valve so as to obtain the seal element well coupled to the latter; progressively removing the clamping elements to sequentially release successive parts of the gasket element and gradually free the slide-valve to gradually introduce the parts of the slide-valve—freed in succession—in the housing cavity allowing the sealing gasket element to gradually expand radially due to the elastic return by adhering tightly to the inner surface of the same housing cavity. The special equipment for fitting the sealing gasket element on the slide-valve and the so obtained recirculation and mixing apparatus is also described.

An apparatus for sealing such a gap may be a plunger seal which may include a flap arm comprising resilient sheets and a wall arm comprising resilient sheets. A proximal end portion of the flap arm may include a closeout seal coupled to the flap. A proximal end portion of the wall arm may include a plunger having a geometry corresponding to that of the closeout seal so the plunger may be matingly received by the closeout seal. When positioned in a gap, the plunger seal may exert a force to urge the flap arm towards the flap and to urge the wall arm and resilient sheet towards the structure to seal the gap.

An engine head gasket includes a base layer, an upper layer, and a lower layer. The base layer includes a base layer inner edge. The engine head gasket further includes an anti-preignition wrap defining a cylinder opening and wrapped around the base layer inner edge. The engine head gasket is configured with a combustion seal and selective thicknesses to direct a combustion sealing load to a cylinder block. The anti-preignition wrap shields angular corners of the base layer inner edge from a cylinder to limit preignition.

A sealing apparatus for a gas turbine engine includes: a first component; a second component positioned in proximity to the first component such that cavity is defined between the first and second components; a resilient seal disposed in the cavity so as to block gas flow between the first and second components, the resilient seal having a first contact surface contacting the first component and a second contact surface contacting the second component; and wherein the resilient seal is configured so as to produce a rolling movement in response to relative movement of the first and second components.