Title:
SOLENOID VALVE
Document Type and Number:
WIPO Patent Application WO/2017/204290
Kind Code:
A1
Abstract:
A valve seat on which the valve body of a movable core sits protrudes toward the movable core from a region outside the valve seat located at an end of a cylindrical body. A gas flow passage in the movable core has: an inflow passage extending on the stationary core side in the direction in which the movable core moves; and two or more outflow passages branching on the valve body side from the inflow passage in a direction forming an acute angle relative to the direction in which the movable core moves. The height of protrusion of the valve seat is 0.3 times or more of the inner diameter of the outflow passages. A gas accumulation space is formed such that, in a state in which the valve body sits on the valve seat, the gas accumulation space includes: a region located away from the movable core a distance 0.5 times or more of the inner diameter of each of the outflow passages, the distance being measured from the stationary core-side edge of the outflow passage along a line extended along the outflow passage in the direction in which the outflow passage extends; and a region located away from the movable core a distance greater than or equal to the inner diameter of the outflow passage, the distance being measured from the valve body-side edge of the outflow passage along a line extended along the outflow passage in the direction in which the outflow passage extends.
More Like This:
| JPH0627894 | [Name of device] Opening and closing solenoid valve |
| WO/2009/028534 | CONTROL VALVE |
Inventors:
YAMAUCHI HIDEKAZU (JP)
ICHIYAMA RYOJI (JP)
ICHIYAMA RYOJI (JP)
Application Number:
PCT/JP2017/019516
Publication Date:
November 30, 2017
Filing Date:
May 25, 2017
Export Citation:
Assignee:
SHINWA CONTROLS CO LTD (JP)
International Classes:
F16K31/06
Domestic Patent References:
| WO2010113645A1 | 2010-10-07 |
Foreign References:
| JPS56160370U | 1981-11-30 |
Other References:
See also references of EP 3467362A4
Attorney, Agent or Firm:
TANAKA Shinichiro et al. (JP)
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