Apparatus and method for detecting leak in hydraulic system

Details Apparatus and method for detecting leak in hydraulic system Apparatus and method for detecting leak in hydraulic system

1994-03-03

1995-10-31

Williams, Hezron E.

Measuring and testing

With fluid pressure

Leakage

73168, 340605, G01M 1900

Patent

active

054619033

ABSTRACT:
An apparatus and method for detecting a leak in a closed, fluid transfer system, specifically a hydraulic system, by comparing the actual rate of fluid level change in the fluid reservoir to the rate of fluid level change computed from the rate of flow and capacity of the system wherein an actual rate of level change in excess of the computed change indicates leakage from the system. An apparatus for determining direction of flow through a conduit and method using the apparatus in which a magnet on a piston slidably engaged inside a valve body is caused to move thereby causing a variance in a measured inductance indicating the direction the piston has moved.

REFERENCES:
patent: 3748898 (1973-07-01), de Menibus
patent: 4131010 (1978-12-01), Eyres
patent: 4425789 (1984-01-01), Andreev et al.

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