Title:
SOLENOID VALVE
Document Type and Number:
Japanese Patent JP2021063582
Kind Code:
A
Abstract:
To suppress the adsorption of a tip end surface of a plunger and a stopper portion due to a grease.SOLUTION: A solenoid valve comprises: a coil portion; a sleeve disposed on the inner side in a diametrical direction of the coil portion and formed with a shaft hole in an axial direction orthogonal to the diametrical direction; a plunger disposed in the shaft hole and sliding in the axial direction according to the exciting of the coil portion; a valve opening portion opened/closed by a base end portion of the plunger; an elastic member energizing the plunger toward the valve opening portion; and a stopper portion disposed oppositely to a tip end surface of the plunger. On a sliding surface of the plunger opposing to an inner peripheral surface of the sleeve forming the shaft hole, a grease is applied. The plunger has a projecting portion projecting outward in the diametrical direction at a sliding end portion that is an end portion in the axial direction of the sliding surface and on a closest side to the tip end surface, and the tip end surface is rougher than the sliding surface.SELECTED DRAWING: Figure 4
Inventors:
KOMIYA TAKETSUGU
Application Number:
JP2019190114A
Publication Date:
April 22, 2021
Filing Date:
October 17, 2019
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F16K31/06; H01F7/16
Attorney, Agent or Firm:
Meisei International Patent Office