Engine oil level detecting device

Details Engine oil level detecting device Engine oil level detecting device

1983-02-07

1986-04-22

Caldwell, Sr., John W.

Communications: electrical

Selective

Having indication or alarm

340620, B60Q 100

Patent

active

045845549

ABSTRACT:
A device for measuring the oil level in the sump of an internal combustion engine. A resistive wire probe extends into the oil contained in the sump. The voltage across the terminals of the probe will vary according to the immersion of the probe in the oil and such voltage is transmitted to a galvanometer in the form of an oil level gauge for indicating the level of the oil to the driver. In order to prevent termination of the signal to the oil level gauge when the engine is started and pumps the oil out of the sump, a timer circuit is provided to continue the signal to the oil level gauge for a predetermined period of time after the ignition switch is closed.

REFERENCES:
patent: 3626400 (1971-12-01), Bates
patent: 4023137 (1977-05-01), Olsho et al.
patent: 4163391 (1979-08-01), Bezard et al.
patent: 4306525 (1981-12-01), Faxvog
patent: 4356480 (1982-10-01), Dressler
patent: 4385290 (1983-05-01), Fiala

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