GASKET

摘要

A gasket in which a high sealing property can be certainly ensured is provided. A gasket 1 is to be interposed between a first flange 21 of a first exhaust pipe 11 and a second flange 22 of a second exhaust pipe 12 in a state where the gasket is fitted onto an end portion of the first exhaust pipe, in order to seal a gap between end portions of the first and second exhaust pipes 11, 12. The gasket 1 includes a first sealing portion 51 and a second sealing portion 52. The first sealing portion has a first butting surface 51a having a tapered shape corresponding to a tapered shape of a first tapered inner circumferential surface 27a of the first flange, and a first projecting portion 51b. The first sealing portion is formed in a radially outer side of the gasket. The second sealing portion has a second butting surface 52a having a tapered shape corresponding to a tapered shape of a second tapered inner circumferential surface of the second flange, and a second projecting portion 52b. The second sealing portion is formed in a radially outer side of the gasket.

主权项

1. A gasket which is annular, which is to be interposed between a first flange of a first exhaust pipe and a second flange of a second exhaust pipe in a state where the gasket is fitted onto an end portion of the first exhaust pipe, in order to seal a gap between an end portion of the first exhaust pipe and an end portion of the second exhaust pipe, the gasket being configured by using an expanded graphite tape and a metal mesh member, wherein
the gasket includes:
a first sealing portion having: a first butting surface having a tapered shape corresponding to a tapered shape of a first tapered inner circumferential surface of the first flange in which a diameter is gradually increased as proceeding toward the second flange; and a first projecting portion which is projectable toward the first tapered inner circumferential surface as compared with the first butting surface, the first sealing portion being formed in a radially outer side so as to allow the first butting surface and the first projecting portion to butt against the first tapered inner circumferential surface; and
a second sealing portion having: a second butting surface having a tapered shape corresponding to a tapered shape of a second tapered inner circumferential surface of the second flange in which a diameter is gradually increased as proceeding toward the first flange; and a second projecting portion which is projectable toward the second tapered inner circumferential surface as compared with the second butting surface, the second sealing portion being formed in a radially outer side so as to allow the second butting surface and the second projecting portion to butt against the second tapered inner circumferential surface.