Displacement of variable displacement pump controlled by load se

Details Displacement of variable displacement pump controlled by load se Displacement of variable displacement pump controlled by load se

1989-06-28

1992-02-04

Look, Edward K.

Power plants

Pressure fluid source and motor

Control by independently operated punch card, tape, digital...

60450, 60452, F16B 3102

Patent

active

050850512

ABSTRACT:
A hydraulic drive system has a variable displacement type pump, at least one hydraulic actuator driven by hydraulic fluid and a directional control valve for controlling a flow of the hydraulic fluid supplied to the actuator. The flow rate of the hydraulic fluid discharged from the hydraulic pump is controlled by a drive device that drives a displacement volume varying device of the hydraulic pump. A load-sensing control device controls the operation of the drive device and is responsive to a differential pressure between a discharge pressure of the hydraulic pump and a load pressure of the actuator to thereby hold the differential pressure at a setting value. The drive system further has an instruction device that instructs a change in the differential pressure between the discharge pressure of the hydraulic pump and the load pressure of the actuator. The instruction is received by a differential pressure setter capable of changing the setting value of the differential pressure.

REFERENCES:
patent: 4282898 (1981-11-01), Harmon
patent: 4292805 (1981-10-01), Acheson
patent: 4379389 (1983-04-01), Liesener
patent: 4487018 (1984-11-01), Budzich
patent: 4523430 (1985-06-01), Masuda
patent: 4617854 (1986-10-01), Kropp

Affiliated with

Also associated with

Rating

Displacement of variable displacement pump controlled by load se does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Displacement of variable displacement pump controlled by load se, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Displacement of variable displacement pump controlled by load se will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-341282