Title:
【発明の名称】操作弁装置
Document Type and Number:
Japanese Patent JP2557000
Kind Code:
B2
Abstract:
A control valve provided with a pressure compensated valve without the interior of a valve body being complicated. In the valve body, a load pressure transmitting path, a check valve and a restriction are formed in a spool constituting a control valve thereof, and an intermediate pressure between a pressure at the inlet and a pressure at the outlet of the pressure compensated valve adjacently provided in the valve body can be fed to a pressure receiving portion of the pressure compensated valve through an oil hole formed in the spool, so that the control valve provided with the pressure compensated valve, which is simple in construction and easy to manufacture, can be provided.
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Inventors:
Teruo Akiyama
Kiyoshi Shirai
Naoki Ishizaki
Koji Yamashita
Shinozaki
Kiyoshi Shirai
Naoki Ishizaki
Koji Yamashita
Shinozaki
Application Number:
JP12296090A
Publication Date:
November 27, 1996
Filing Date:
May 15, 1990
Export Citation:
Assignee:
KOMATSU LTD.
International Classes:
F15B11/00; E02F9/22; F15B11/05; F15B11/08; F15B13/04; (IPC1-7): F15B11/05; F15B11/00; F15B11/08
Domestic Patent References:
| JP59197603A | ||||
| JP639703A | ||||
| JP1153802A |
Attorney, Agent or Firm:
Masaaki Yonehara (2 others)