PRESSURE COMPENSATING VALVE - KOMATSU MFG CO LTD

Title:

PRESSURE COMPENSATING VALVE

Document Type and Number:

WIPO Patent Application WO/1996/004482

Kind Code:

A1

Abstract:

The invention relates to a pressure compensating valve which comprises a valve for opening and closing an inlet port and an outlet port, a pressure receiving chamber, a piston driven by a negative pressure in the pressure receiving chamber to move the valve in a closing direction, an intermediate pressure receiving chamber communicating with the inlet port through a first fine hole to have its internal pressure push the valve in the closing direction, and a variable set pressure type relief valve for causing a pressure oil in the intermediate pressure receiving chamber to be relieved to the outlet port through a second fine hole.

Inventors:

ISHIZAKI NAOKI (JP)
TAKANO TOSHIRO (JP)

Application Number:

PCT/JP1995/001546

Publication Date:

February 15, 1996

Filing Date:

August 03, 1995

Export Citation:

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Assignee:

KOMATSU MFG CO LTD (JP)
ISHIZAKI NAOKI (JP)
TAKANO TOSHIRO (JP)

International Classes:

F16K17/30; E02F9/22; F15B11/05; F15B13/04; G05D16/10; (IPC1-7): F15B11/05; F15B11/16

Foreign References:

JPS59197603A	1984-11-09
JPS6469804A	1989-03-15
JPH0218903A	1990-01-23

Other References: