Hydromechanical control of differential pressure across a variab

Details Hydromechanical control of differential pressure across a variab Hydromechanical control of differential pressure across a variab

1989-08-01

1991-11-05

Look, Edward K.

Power plants

Pressure fluid source and motor

Condition responsive control of pump or motor displacement

60451, 60327, F15B 1102, F03C 140

Patent

active

050622650

ABSTRACT:
A method and apparatus for controlling the differential hydraulic fluid pressure (.DELTA.P) across a variable displacement hydraulic motor (10) wherein the displacement of the motor is adjusted as a function of the differential fluid pressure across the motor to maintain a near constant differential pressure across the motor when the motor is operating under an opposing load and in an intermediate region of its speed-load torque profile (FIG. 4). In order to minimize the flow requirements of the motor, the displacement of the motor is reduced to minimum when the motor is operating under an aiding load or no load. The method and apparatus are useful in an apparatus for mechanically actuating a device (22) with the variable displacement hydraulic motor (10) driven by hydraulic fluid from a hydraulic power supply (25) such as an aircraft power supply for operating components of the aircraft, e.g. rudder, wing, etc.

REFERENCES:
patent: 2941365 (1960-06-01), Carlson et al.
patent: 3465680 (1967-03-01), Saila
patent: 3635021 (1972-01-01), McMillen et al.
patent: 4478136 (1984-10-01), Heiser et al.
patent: 4768340 (1988-09-01), Hamilton
patent: 4907408 (1990-03-01), Barker

Affiliated with

Also associated with

Rating

Hydromechanical control of differential pressure across a variab does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydromechanical control of differential pressure across a variab, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydromechanical control of differential pressure across a variab will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-492110