Measuring and testing – Blower – pump – and hydraulic equipment
Patent
1988-10-07
1990-02-27
Yasich, Daniel M.
Measuring and testing
Blower, pump, and hydraulic equipment
73 37, G01M 1900
Patent
active
049035290
ABSTRACT:
A method for testing an hydraulic device of an hydraulic control system, the system having a source of hydraulic fluid under pressure and a fluid reservoir, and the device having a fluid inlet which is releasably coupled to the source when the system is in operation, a fluid outlet which is releasably coupled to the reservoir when the system is in operation, and an element which restricts fluid flow between the inlet and the outlet, by: halting operation of the system; providing a portable analyzing apparatus having a supply of hydraulic fluid, an outlet conduit, a unit for supplying hydraulic fluid under pressure from the supply to the outlet conduit, a return conduit communicating with the supply, a fluid pressure monitor connected to the outlet conduit, and a fluid flow monitor in the return conduit; disconnecting the fluid inlet of the device from the source and connecting that fluid inlet to the outlet conduit; disconnecting the fluid outlet of the device from the reservoir and connecting that fluid outlet to the return conduit; placing the unit for supplying hydraulic fluid under pressure into operation for supplying hydraulic fluid under pressure to the outlet conduit; and monitoring the fluid pressure in the outlet conduit and the flow of fluid through the return conduit with the monitors.
REFERENCES:
patent: 2098677 (1937-11-01), Saballus et al.
patent: 3861209 (1975-01-01), Amies
patent: 3942375 (1976-03-01), Shepherd
patent: 3975944 (1976-08-01), Aprily, Jr.
patent: 4181017 (1980-01-01), Markle
patent: 4722221 (1988-02-01), Jerguson
patent: 4821769 (1989-04-01), Mills et al.
Nath B. R.
Westinghouse Electric Corp.
Yasich Daniel M.
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