Resettable coolant additive maintenance sensor

Details Resettable coolant additive maintenance sensor Resettable coolant additive maintenance sensor

1996-04-12

1997-07-15

Kamen, Noah P.

Internal-combustion engines

Cooling

Indicators and safety devices

204404, F01P 514

Patent

active

056473052

ABSTRACT:
An engine coolant additive sensor comprises two sections, each made of dissimilar metals which have a single point of contact therebetween. A closed circuit is formed through this point of contact and such point is placed into the engine coolant. When additives become depleted in the coolant, corrosion of one metal takes place breaking the closed circuit and creating an indication that coolant additive maintenance is required. Once maintenance is performed, the point of contact is reestablished, resetting the circuit.

REFERENCES:
patent: 3410764 (1968-11-01), Johnson et al.
patent: 4147596 (1979-04-01), Baboian et al.
patent: 4338959 (1982-07-01), Krueger
"Prevent Cavitation" Brochure No. CGE 445, Navistar International Transportation Corp., 1991.

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