Disc valve

Details Disc valve Disc valve

1997-04-23

1998-11-03

Chambers, A. Michael

Valves and valve actuation

Valve

Materials

13762517, 13762541, F16K 3100

Patent

active

058297359

ABSTRACT:
The present invention provides a disc valve capable of enhancing an adhesion force between a valve body and a diamond-like hard carbon film so as to maintain leak-free and stable sliding characteristics for an extended period of time.
The disc valve of the present invention comprises two valve bodies which slide with each other, wherein at least one of the valve bodies is made of ceramics, and the surface of the valve body is coated with a diamond-like hard carbon film through an intermediate layer comprising a Ti film and a Si film laminated in this order.

REFERENCES:
patent: 4763876 (1988-08-01), Olda et al.
patent: 4932438 (1990-06-01), Kitamura et al.
patent: 5100565 (1992-03-01), Fujiwara et al.
patent: 5755261 (1998-05-01), Fukuzawaw et al.

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