Title:
PUMP CONTROL DEVICE OF INERTIAL BODY DRIVING CIRCUIT
Document Type and Number:
Japanese Patent JPS6018658
Kind Code:
A
Abstract:
PURPOSE:To improve the operability of a hydrostatic pump, by a method wherein chambers across a servo piston are interconnected through the throttle parts of a servo bypass valve, and the throttle parts are closed only when a control command pressure is exerted. CONSTITUTION:Chambers 27 and 28 across a servo piston 26 of a servo cylinder 6 are interconnected through throttle parts 40 and 41 of a servo bypass valve 31. The throttle parts 40 and 41 of the servo bypass valve 31 are closed only when a control command pressure is exerted. Acceleration and deceleration properties, which are similar to preceding properties, are obtained during acceleration and deceleration of a motor, and when a control lever 29 during deceleration is brought to a neutral position, a hydrostatic motor is easily forced into a stop and besides at an arbitrary position. This enables sharp improvement of the operability of the hydrostatic pump.
Inventors:
NAKAGAWA MASAYA
WAKAMIYA TATSUYA
WAKAMIYA TATSUYA
Application Number:
JP12499983A
Publication Date:
January 30, 1985
Filing Date:
July 09, 1983
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD
International Classes:
F04B49/00; F16H61/42; F16H61/433; (IPC1-7): F16H39/44; F04B49/00
Attorney, Agent or Firm:
Kenzo Ota