Variable displacement hydraulic servomotor system

Details Variable displacement hydraulic servomotor system Variable displacement hydraulic servomotor system

1988-04-22

1990-03-13

Look, Edward K.

Power plants

Pressure fluid source and motor

Condition responsive control of pump or motor displacement

60452, 60487, 60489, 60493, 60494, F16D 3102

Patent

active

049074083

ABSTRACT:
A bidirectional hydraulic servomotor system includes a variable-displacement motor which may impel or brake movement of a load member that either resists or assits movement by the servomotor, respectively. The direction of load movement is under control of a directional control valve with motor displacement and function (impelling or braking) being effected automatically to achieve controlled load movemement with minimal consumption of hydraulic fluid.

REFERENCES:
patent: 3890064 (1975-06-01), Boehringer et al.
patent: 4168652 (1979-09-01), Bick
patent: 4195479 (1980-04-01), Dezelan
patent: 4286927 (1981-09-01), Boehringer
patent: 4712377 (1987-12-01), Yoshida et al.
patent: 4768340 (1988-09-01), Hamilton

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