Fluid handling – Systems – Multi-way valve unit
Patent
1989-05-08
1990-06-12
Chambers, A. Michael
Fluid handling
Systems
Multi-way valve unit
251368, 2989012, E03B 100
Patent
active
049324381
ABSTRACT:
In a valve provided with a fixed valve body (13) forming a passage of a fluid and a movable valve body (14) arranged relatively movably in contact with this fixed valve body (13), in order to smooth the sliding between the fixed valve body (13) and movable valve body (14) over a long period, the sliding surface part of at least either of the above mentioned fixed valve body (13) and movable valve body (14) is formed of a ceramic compound charged with a lubricant in the open pores of a sintered ceramic body having open pores of a three-dimensional network structure. Thereby, the fluid passage can be connected and disconnected always lightly and stably by the operation of an operating lever (17) and the sliding of the fixed valve body (13) and movable valve body (14) in close contact with each other can be maintained over a long period to prevent the fluid from leaking out.
REFERENCES:
patent: 3592440 (1971-07-01), McFarland
patent: 3873344 (1975-03-01), Church et al.
patent: 3917149 (1975-11-01), Breton et al.
patent: 4088153 (1978-05-01), Paasikivi
patent: 4377892 (1983-03-01), Gonzalez
patent: 4420142 (1983-12-01), Dworak et al.
patent: 4560526 (1985-12-01), Okumura
Kitamura Kazuhiro
Tsukada Kiyotaka
Chambers A. Michael
Ibiden Co. Ltd.
Kitamura Valve Co., Ltd
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