Load responsive system pump controls

Details Load responsive system pump controls Load responsive system pump controls

G - Physics

05

D

341/39

G05D 15/01 (2006.01) F04B 49/08 (2006.01) F15B 11/16 (2006.01) F16H 61/46 (2006.01) G05D 16/20 (2006.01)

Patent

CA 1130891

Inventor: Tadeusz Budzich Title: Load Responsive System Pump Controls ABSTRACT OF THE DISCLOSURE A load responsive fluid power control system using servo type flow control valves and fluid motors supplied by a variable displacement pump. The pump displacement is regulated by a control valve in response to the motor load pressure to vary the pump displacement to maintain a constant preselectable ratio between the pump outlet pressure and motor load pressure and to vary the pressure differential between pump outlet pressure and motor load pressure with variation in magnitude of the load. The pump control also limits maximum and minimum system pressures.

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