Title:
LIQUID REGULATOR
Document Type and Number:
WIPO Patent Application WO/2006/022096
Kind Code:
A1
Abstract:
A liquid regulator capable of accurately controlling a flow by developing excellent responsiveness to flow control for not only a variation in primary side pressure but also a variation in secondary side pressure. The liquid regulator (10) comprises a first diaphragm chamber (16) in which an operating pressure by a gas such as air is received by a first diaphragm (14) to develop an adjusting force for valve opening, a second diaphragm chamber (17) in which a variation in the pressure of the liquid led from a secondary side therein is received by a second diaphragm (15) to generate an adjusting force for valve opening, a shaft part (12) axially slid by receiving the adjusting forces generated in the first and second diaphragm chambers (16) and (17), a valve element (13) performing the adjustment of the valve opening by operating integrally with the shaft part (12), a partition wall (11a) shielding the first diaphragm chamber (16) from the second diaphragm chamber (17) so that an interference is not present between the first diaphragm chamber and the second diaphragm chamber, and a bellows (22) cutting off the flow of the fluid between the first and second diaphragm chambers (16) and (17).
Inventors:
IGARASHI HIROKI (JP)
Application Number:
PCT/JP2005/013131
Publication Date:
March 02, 2006
Filing Date:
July 15, 2005
Export Citation:
Assignee:
SURPASS IND CO LTD (JP)
IGARASHI HIROKI (JP)
IGARASHI HIROKI (JP)
International Classes:
F16K7/17; G05D7/01
Foreign References:
| JPH1185287A | 1999-03-30 | |||
| JP2004070746A | 2004-03-04 |
Other References:
See also references of EP 1793298A4
Attorney, Agent or Firm:
Fujita, Takaharu (3-1 Minatomirai 3-chome, Nishi-k, Yokohama-shi Kanagawa 12, JP)
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