Title:
FOUR−WAY VALVE
Document Type and Number:
WIPO Patent Application WO/2002/099324
Kind Code:
A1
Abstract:
A four−way valve, comprising a body having a main flow passage, a valve chamber, and a pair of branch flow passages and a cylinder body having a piston inserted therein, wherein the valve chamber is allowed to communicate with the main flow passage through a communication port having a valve seat, the branch flow passage is formed so that the lowest part of the inner diameter thereof is flush with the bottom surface of the valve chamber, a rod part having a valve element at the tip thereof is projectedly provided on the lower surface of the piston, the valve element is connected to a diaphragm supported by the body, and a pair of working fluid feed ports for vertically moving the piston are provided in the cylinder body.
More Like This:
| JPH0640539 | [Name of device] Two-way valve |
Inventors:
HANADA TOSHIHIRO (JP)
INOUE WATARU (JP)
INOUE WATARU (JP)
Application Number:
PCT/JP2002/005167
Publication Date:
December 12, 2002
Filing Date:
May 28, 2002
Export Citation:
Assignee:
ASAHI ORGANIC CHEM IND (JP)
HANADA TOSHIHIRO (JP)
INOUE WATARU (JP)
HANADA TOSHIHIRO (JP)
INOUE WATARU (JP)
International Classes:
F16K7/17; F16K11/04; F16K31/122; F16K41/10; (IPC1-7): F16K31/122; F16K7/17; F16K11/04
Foreign References:
| JPH08233151A | 1996-09-10 | |||
| JPH1151239A | 1999-02-26 | |||
| JPH1182786A | 1999-03-26 |
Attorney, Agent or Firm:
Ishida, Takashi (ISHIDA & ASSOCIATES Toranomon 37 Mori
Bldg. 5-, Toranomon 3-chome Minato-ku Tokyo, JP)
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