Hydraulic piston pump with servo displacement control

Details Hydraulic piston pump with servo displacement control Hydraulic piston pump with servo displacement control

1991-10-28

1993-04-13

Smith, Leonard E.

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

92122, F04B 126

Patent

active

052016374

ABSTRACT:
A variable displacement hydraulic piston pump and servo displacement control which combines a rotary vane type actuator and a port plate to obtain both servo and actuation functions for a hydraulic piston pump. The control includes a construction which provides feel to the operator for how much work is being performed. The control also incorporates a failsafe mechanism so that the control is capable of transmitting torque to manually stroke the pump if charge pressure is lost.

REFERENCES:
patent: 3332323 (1967-07-01), Roeske
patent: 3967541 (1976-07-01), Born et al.
patent: 4739693 (1988-04-01), Honaga et al.

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