Title:
圧力流量制御弁
Document Type and Number:
Japanese Patent JP3598235
Kind Code:
B2
Abstract:
A pressure adjustment device (23) is provided with a valve plug (82) for reducing the pressure of a pressure fluid based on the clearance between it and a seat part (94). A rod (86) has a seal (89) to be displaced together with the valve plug, and a spring element (76) which is attached to one end of the rod, to press the plug onto an annular projection (92) on the inside wall surface of a first valve body (12). When the secondary pressure supplied from a secondary connection (30) is balanced by the biasing force of the spring element, the valve assumes a closed state, and the plug rests on the seat part. An independent claim is included for a pressure or flow-rate control valve.
Inventors:
Masayuki Hosono
Yang Qinghai
Yang Qinghai
Application Number:
JP20068299A
Publication Date:
December 08, 2004
Filing Date:
July 14, 1999
Export Citation:
Assignee:
SMC Corporation
International Classes:
F15B11/028; F15B11/04; F16K17/196; G05D7/06; F16K1/00; (IPC1-7): F15B11/04; F16K1/00; F16K17/196; G05D7/06
Domestic Patent References:
| JP56131003U | ||||
| JP55150409U |
Attorney, Agent or Firm:
Takehiro Chiba
Tatsuhiko Sato
Tatsuhiko Sato