Oil pressure switch

Details Oil pressure switch Oil pressure switch

1984-06-12

1985-11-05

Tolin, G. P.

Electricity: circuit makers and breakers

Fluid pressure

Piston

200 819R, 73745, 340 60, H01H 3540

Patent

active

045515948

ABSTRACT:
An oil pressure monitoring system for an engine having an oil pressure switch comprising a piston located in a port associated with the lubricating system of the engine. The piston is biased into the port by means of a spring. Located between the piston and the wall of the port so as to undergo compression with movement of the piston into the port is an elastic, electrical conductor ring. The ring is placed in series in a warning circuit and is so constructed that compression of the ring resulting from a drop in oil pressure within the lubricating system will affect conductivity through the ring to initiate a warning signal.

REFERENCES:
patent: 3704458 (1972-11-01), Buchanan
patent: 3758733 (1973-09-01), Du Rocher

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