Title:
【発明の名称】水圧モータ制御装置
Document Type and Number:
Japanese Patent JP2923379
Kind Code:
B2
Abstract:
An arrangement intended for controlling hydraulic motors and comprising inlet elements (17, 18) and outlet elements (7, 5) in the form of valves arranged in a hydraulic circuit which connects the hydraulic motor (1) with a pump (15) which functions as a power source for at least the hydraulic motor (1) and preferably, but not necessarily, for one or more further hydraulic motors, and also to a tank (9). Each inlet element (17, 18) is mounted in the hydraulic circuit on the pressure side of the pump, whereas each outlet element (5, 7) is mounted in the hydraulic circuit on the suction side of the pump. The arrangement is characterized in that each inlet element (17, 18) detects the pressure prevailing in the hydraulic circuit at a location between the hydraulic motor (1) and the outlet element (7, 5), and is also controlled by this detected pressure on load lowering occasions in accordance with a separately applied control-pressure, such as to steer the flow of fluid from one piston side of the hydraulic motor to the other piston side thereof and relieve the pump (15) of load.
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Inventors:
BO ANDERUSON
Application Number:
JP18233691A
Publication Date:
July 26, 1999
Filing Date:
July 23, 1991
Export Citation:
Assignee:
BO ANDERUSON
International Classes:
F03C1/007; F03C1/40; F03C1/253; F15B11/00; F15B13/01; F15B13/04; (IPC1-7): F03C1/253; F03C1/40
Domestic Patent References:
| JP3115781A | ||||
| JP55115608A | ||||
| JP265980A |
Attorney, Agent or Firm:
Akira Asamura (3 outside)