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Patent Searching and Data


Title:
VALVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/216195
Kind Code:
A1
Abstract:
A valve device that makes a cylinder mechanism operate by switching the direction of an operating fluid that is supplied to the cylinder mechanism. The valve device has: a control valve that has a main spool that changes position by moving in the axial direction thereof; a lock valve that has a plunger and a pressure chamber; and a selector valve that has a selector spool that can move in the axial direction thereof and changes position by moving in association with the main spool. The selector spool is adjacent to the main spool, and the axis of the selector spool intersects the axis of the main spool.

Inventors:
FUJIWARA HIROAKI
ITO NOBORU
ITO HIROSHI
Application Number:
PCT/JP2019/017169
Publication Date:
November 14, 2019
Filing Date:
April 23, 2019
Export Citation:
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Assignee:
KAWASAKI HEAVY IND LTD (JP)
International Classes:
F15B11/00
Foreign References:
JPH09269001A1997-10-14
JPS54153669U1979-10-25
JPH07139515A1995-05-30
Other References:
See also references of EP 3792502A4
Attorney, Agent or Firm:
PATENT CORPORATE BODY ARCO PATENT OFFICE (JP)
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