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Patent Searching and Data


Title:
PRESSURE REDUCING VALVE
Document Type and Number:
WIPO Patent Application WO/2019/163879
Kind Code:
A1
Abstract:
A pressure reducing valve (1A) is provided with: a housing (10) in which a flow passage (15) is formed; a valve seat (30) formed in the flow passage (15); a valve body (20) capable of coming into contact with the valve seat; an auxiliary spring (40) for urging the valve body (20) in the direction in which the valve body (20) comes into contact with the valve seat (30); a spring (50) for urging the valve body (20) in the direction in which the valve body (20) is separated from the valve seat (30); a diaphragm (60) disposed between the spring (50) and the valve body (20), one surface of the diaphragm (60) being in contact with the spring (50) and being subjected to the urging force of the spring (50), the other surface of the diaphragm (60) being in contact with the portion of the flow passage (15), which is located closer to an outlet (14) than the valve seat (30), and being subjected to the pressure of fluid, the diaphragm (60) being deformed toward the valve body (20) when the urging force of the spring (50) is greater than a force caused by the fluid pressure, thereby separating the valve body (20) from the valve seat (30); and a regulation member (80) held by the housing (10) so as to be movable in the direction in which the spring (50) is compressed or allowed to extend, and regulating the magnitude of the urging force of the spring (50).

Inventors:
TAKAMATSU Ryohei (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
SUTO Masayuki (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
MURAKI Tomohiko (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2019/006508
Publication Date:
August 29, 2019
Filing Date:
February 21, 2019
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
G05D16/06; F16K31/128
Attorney, Agent or Firm:
KIMURA Mitsuru (2nd Floor, Kyohan Building 7, Kandanishiki-cho 2-chome, Chiyoda-k, Tokyo 54, 〒1010054, JP)
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