Title:
PRESSURE REDUCTION VALVE
Document Type and Number:
WIPO Patent Application WO/2016/199610
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a pressure reduction valve with which it is possible to minimize the swinging movement of the valve body in a very small opening region of a throttle passage using a vibration-minimizing member, and minimize wear in the main valve body caused by the minimizing of the swinging movement of the valve body by the vibration-minimizing member. In the pressure reduction valve, a throttle passage (51h) for channeling a pressure fluid is formed in the main valve body (51). A valve body (521) is displaced in the axial direction (DRax) of one axis (AXv) to increase/reduce the opening degree of the throttle passage. A valve body urging member (54) urges the valve body towards the closed side, in which the opening degree of the throttle passage is reduced. An actuation member (525) applies, to the valve body, an actuation force (Fv) in the direction in which the valve body is moved towards the open-valve side, in which the opening degree of the throttle passage is increased. The vibration-minimizing member (60) generates a pressing force (Fp) for pressing the main valve body between the main valve body and the valve body, and thereby inhibits vibration of the valve body in the direction intersecting the axial direction. The valve body releases the pressing force of the vibration-minimizing member by being displaced towards the open-valve side beyond a predetermined displacement position.
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Inventors:
ITO SHIGEKI (JP)
Application Number:
PCT/JP2016/065888
Publication Date:
December 15, 2016
Filing Date:
May 30, 2016
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
G05D16/06; F16K47/02; F16K31/68; F25B41/06
Foreign References:
| JP2013068368A | 2013-04-18 | |||
| JPS58196481U | 1983-12-27 | |||
| JP2001082835A | 2001-03-30 | |||
| JP2003090648A | 2003-03-28 | |||
| JP2004293779A | 2004-10-21 | |||
| JP2005156046A | 2005-06-16 | |||
| JP2007322058A | 2007-12-13 |
Attorney, Agent or Firm:
YOU-I Patent Firm (JP)
Patent business corporation ゆうあい patent firm (JP)
Patent business corporation ゆうあい patent firm (JP)
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