Demand compensated hydraulic system with pressure amplifier

Details Demand compensated hydraulic system with pressure amplifier Demand compensated hydraulic system with pressure amplifier

1977-06-24

1978-06-20

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

Condition responsive control of pump or motor displacement

60451, 60484, 417212, F16H 3946, F15B 1116

Patent

active

RE0296724

ABSTRACT:
A hydraulic system having fluid flow feedback from a fluid motor to a demand control valve which operates to change pump output to compensate for motor demand includes a pressure amplifier between the feedback system and the valve. The pressure amplifier includes a chamber with a piston therein which is slidable to connect or block pump output fluid flow to the valve in response to feedback pressure variations from the motor.

REFERENCES:
patent: 2892311 (1959-06-01), Van Gerpen
patent: 2892312 (1959-06-01), Allen et al.
patent: 3754400 (1973-08-01), Parquet
patent: 3826090 (1974-07-01), Bahl

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