Title:
Solenoid valve
Document Type and Number:
Japanese Patent JP6335693
Kind Code:
B2
Abstract:
A solenoid valve (100) includes a housing (1) having a cylindrical shape and having a valve path, a spool (2) adjusting an opening degree of the valve path, a coil (12) producing a magnetic force when a current passes therethrough, a first and a second stator core (14, 15) excited by the magnetic force of the coil (12), a shaft (16) configured to be movable along axial direction together with the spool (2), a plunger (17) fixed to the shaft (16) and moving in the axial direction by adsorption force acting between itself and the first stator core (14) by the magnetic force of the coil (12), and a coil spring (9) biasing the spool (2) against the adsorption force acting on the plunger (17). A spring constant of the coil spring (9) increases as the adsorption force increases by the movement of the plunger (17).
Inventors:
Takeshi Hironaka
Application Number:
JP2014140621A
Publication Date:
May 30, 2018
Filing Date:
July 08, 2014
Export Citation:
Assignee:
KYB Corporation
International Classes:
F16K31/06; H01F7/16
Domestic Patent References:
| JP56116968A | ||||
| JP55078831A |
Foreign References:
| US20120012769 |
Attorney, Agent or Firm:
Goto Patent Office
Masaki Goto
Masaaki Iida
Atsushi Sudo
Masaki Goto
Masaaki Iida
Atsushi Sudo
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