Discharge flow control system and method in hydraulic pump

Details Discharge flow control system and method in hydraulic pump Discharge flow control system and method in hydraulic pump

1994-04-26

1997-08-19

Voeltz, Emanuel T.

Boots, shoes, and leggings

60487, 60489, 60490, 60491, 60492, F16D 3102

Patent

active

056594852

ABSTRACT:
A discharge flow control system and method of a hydraulic pump driven by an engine for the minimization of the difference between a discharge mount of flow in the pump and total mount of operating oil necessary to operate each actuator in hydraulic equipment. The control system is provided with a detector which detects the number of rotation of the engine, generates equal number of pulses to the number of rotation, a detector which detects the tilt angle of a swash plate of the pump, a detector which detects the operating displacement of the actuator, a detector which detects the load pressure acting on the pump, and a controll unit which controls a target discharge flow mount of the pump which is suitable for performing a predetermined work based on the number of rotation, the tilt angle, the displacement and the load pressure.

REFERENCES:
patent: 4967557 (1990-11-01), Izumi et al.
patent: 5155996 (1992-10-01), Tatsumi et al.
patent: 5174114 (1992-12-01), Aoyagi
patent: 5251440 (1993-10-01), Bong-dong et al.
patent: 5351914 (1994-10-01), Nagao et al.

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