Demand compensated hydraulic system with pilot line pressure-mai

Power plants – Pressure fluid source and motor – Condition responsive control of pump or motor displacement

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Details

60452, 60484, 417212, F16H 3946, F15B 1306

Patent

active

039954250

ABSTRACT:
A hydraulic system having pilot line fluid feedback from a fluid motor to valving which operates to change pump output to compensate for motor demand includes a pressure regulator valve for maintaining a predetermined minimum pressure in the pilot line. The pressure regulator valve eliminates the power wasting pressure differential which normally exists between the pump output and the fluid motor demand in demand compensated hydraulic systems.

REFERENCES:
patent: 2892312 (1959-06-01), Allen et al.
patent: 2984985 (1961-05-01), MacMillin
patent: 3754400 (1973-08-01), Parquet
patent: 3826090 (1974-07-01), Bahl
patent: 3865514 (1975-02-01), Lonnemo

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