Title:
CONTROL DEVICE FOR PLURAL ACTUATORS
Document Type and Number:
Japanese Patent JP3124094
Kind Code:
B2
Abstract:
PURPOSE: To provide a control device for plural actuators by which the reduction in the discharge quantity of a variable pump due to the sudden rise of its discharge pressure can be prevented, even in such a case that a specific actuator requires a low-pressure very small flow rate.
CONSTITUTION: The downstream side of an operation valve 10 of a turning motor 9 is connected to the supply side of a boom cylinder 3 via a confluence passage 40, and also a changeover valve 41 which is changed over to the open position when the operation valve 4 for operating the boom cylinder 3 is changed over is provided to this confluence passage 40.
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Inventors:
Yoshitake Yonekubo
Yoshimi Hasegawa
Hideshi Koiwai
Yoshimi Hasegawa
Hideshi Koiwai
Application Number:
JP35712891A
Publication Date:
January 15, 2001
Filing Date:
December 25, 1991
Export Citation:
Assignee:
Kayaba Industry Co., Ltd.
International Classes:
E02F9/22; F15B11/00; F15B11/05; F15B11/16; (IPC1-7): F15B11/00; E02F9/22; F15B11/05; F15B11/16
Domestic Patent References:
| JP6487901A | ||||
| JP2213524A |
Attorney, Agent or Firm:
Nobuyuki Shima