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Patent Searching and Data


Title:
HYDRAULIC CONTROL CIRCUIT FOR OIL HYDRAULIC MOTOR
Document Type and Number:
Japanese Patent JP2000205203
Kind Code:
A
Abstract:

To ensure necessary turn torque, avoid a lever hunting phenomenon caused by rapid change of a turn speed and avoid the complication of a control circuit.

A control valve 12 includes a sub-valve 14 opening/closing a sub-bypass oil path 12e formed in this control valve. The switching operation of this sub-valve from its opened position X to closed position Y is so constituted that it may be conducted in delayed response to switching operation from a neutral position N of the control valve to a pressure oil supply position X or Y.


Inventors:
IWASAKI HITOSHI
Application Number:
JP754899A
Publication Date:
July 25, 2000
Filing Date:
January 14, 1999
Export Citation:
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Assignee:
CATERPILLAR MITSUBISHI LTD
International Classes:
F15B11/00; (IPC1-7): F15B11/00
Attorney, Agent or Firm:
Tetsuo Hirose