HYDRAULIC CONTROL VALVE - Nissin Industry Co., Ltd.

Title:

HYDRAULIC CONTROL VALVE

Document Type and Number:

Japanese Patent JP3730691

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To eliminate sealing between an input chamber and the outer end part of an output hole to reduce the number of sealing members by forming annular sealing members between a valve housing and a support body, between an output chamber and a releasing chamber, the releasing chamber and the input chamber, the outer end parts of the output hole and the second releasing hole respectively.
SOLUTION: When a linear solenoid 2 applies thrust corresponding to energizing amount to a plunger 21, a spool valve element 20 is pressed in a output hole 28 communicating direction with an input hole 25 against fluid pressure working upon the spring force of a return spring 22 and a reaction pin 19, so that fluid pressure corresponding to the energizing amount to the solenoid 2 from the output hole 28 is outputted. The outer end of the output hole 28 drilled in the guide member 10 of a valve housing 3 is blocked by a plugging member 31, therefore, sections between an output chamber 12 and a releasing chamber 13, the releasing chamber 13 and an input chamber 14, and outer ends of the output hole 28 and the outer end of the second opening hole 27 are sealed by the first to third sealing members 35-37 respectively. It is thus possible to provide complete sealing and reduction in the number of sealing members.

Inventors:

Go Hatada

Application Number:

JP28621595A

Publication Date:

January 05, 2006

Filing Date:

November 02, 1995

Export Citation:

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