Apparatus and method detecting operating condition of an oil pum

Details Apparatus and method detecting operating condition of an oil pum Apparatus and method detecting operating condition of an oil pum

1997-04-29

1999-05-11

Wu, Daniel J.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340438, 340686, 417 63, B60Q1/00

Patent

active

059032154

ABSTRACT:
The present invention is an apparatus and method for detecting an operating condition of an oil pump of the type utilized in an oil supply system for a internal combustion engine. The apparatus includes a sensor for detecting the movement of a piston and/or a check valve of an oil pump. The apparatus preferably includes an engine control for monitoring the sensor over a fixed time interval and determining whether a signal is indicative of a malfunction or abnormality. In accordance with the method, the pump is monitored with the sensor and in the event an abnormality is detected, a warning indicator is activated and/or the engine is shut off.

REFERENCES:
patent: 4551069 (1985-11-01), Gilmore
patent: 4913108 (1990-04-01), Sougawa et al.
patent: 5024294 (1991-06-01), Van Fossen et al.
patent: 5159910 (1992-11-01), Ninomiya et al.
patent: 5390762 (1995-02-01), Nelson
patent: 5687598 (1997-11-01), Kirii et al.

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