Test stand for testing hydraulic devices

Details Test stand for testing hydraulic devices Test stand for testing hydraulic devices

1980-10-20

1983-01-18

Gill, James J.

Measuring and testing

Blower, pump, and hydraulic equipment

G01M 1900

Patent

active

043686389

ABSTRACT:
A test stand for testing hydraulic devices such as hydraulic pumps and motors, either separately or jointly. The test stand is comprised of a primary power source which acts in combination with a hydraulic motor to drive a drive train, which is in turn, operated by a hydraulic pump. The hydraulic pump and the hydraulic motor are fluidly connected together by passage means so that hydraulic fluid can be pumped therebetween. A pressure control means is present in the passage means for sensing and preventing the pressure from going above a predetermined value. Connected between this pressure control means and the hydraulic motor is a control means for adjusting the fluid displacement of the hydraulic motor to correspond to the fluid output of the hydraulic pump. This control means enables the hydraulic motor to operate in synch with the hydraulic pump at all times. The test stand also has power regenerative features wherein the hydraulic motor is capable of converting the fluid pressure to mechanical power. This power is then used to drive the drive train.

REFERENCES:
patent: 4176549 (1979-12-01), Eichinger

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