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Title:
NORMALLY CLOSED SOLENOID VALVE DEVICE
Document Type and Number:
Japanese Patent JP2011256951
Kind Code:
A
Abstract:

To improve a normally closed solenoid valve device provided with a damper chamber for reducing the vibration of the mover to minimize the entry of air into the damper chamber to thereby stabilize the damping performance of the damper chamber.

A cylinder 9 which has one end open and has an inner diameter smaller than the outer diameter of a barrel section 6a of a mover and a piston 10 which is displaced relative to a cylinder 9 by the movement of the mover 6 are provided to the valve housing 2 and the mover 6 of a normally closed solenoid valve in such a manner that cylinder 9 and the piston 10 correspond to the valve housing 2 and the mover 6. This forms a damper chamber 11 between the cylinder 9 and the piston 10 inserted in the opening of the cylinder 9. A restriction flow path 12 for allowing a working liquid within a valve chamber 4 to enter and exit from the damper chamber 11 is provided between the damper chamber 11 and the valve chamber 4.


Inventors:
WATANABE SHOTA
SASAKI SHIN
KOBAYASHI KAZUYUKI
MIYAGI TAKAHIRO
Application Number:
JP2010132599A
Publication Date:
December 22, 2011
Filing Date:
June 10, 2010
Export Citation:
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Assignee:
ADVICS CO LTD
International Classes:
F16K31/06; B60T15/36; F16K47/04
Domestic Patent References:
JP2003343754A2003-12-03
JPH0875026A1996-03-19
JP2008164068A2008-07-17
JP2007040423A2007-02-15
JP2005024077A2005-01-27
JPS59175768U1984-11-24
Attorney, Agent or Firm:
Bunji Kamada
Higashio Masahiro
Takayoshi Tagawa



 
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