Corrosion inhibiting switched polarity fuel level sender module

Details Corrosion inhibiting switched polarity fuel level sender module Corrosion inhibiting switched polarity fuel level sender module

1991-04-15

1992-12-15

Gaffin, Jeffrey A.

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

3404502, 340623, B60L 300

Patent

active

051720078

ABSTRACT:
Galvanic corrosion of the fuel sender immersed in the corrosive fuel mixture is minimized by supplying the sender with current that periodically switches polarity. The switching rate is selected to prevent or greatly minimize irreversible oxidation buildup. The vehicle body computer responds to current flow through the sender without regard to the alternating polarity drive signal. The switched polarity sender module can thus be employed without necessitating modification of the sender or body computer components.

REFERENCES:
patent: 4412204 (1983-10-01), Pagane
patent: 4699003 (1987-10-01), Harde
patent: 4733560 (1988-03-01), Dam
patent: 4782699 (1988-11-01), Gonze
patent: 4789946 (1988-12-01), Sinz
patent: 4890491 (1990-01-01), Vetter et al.
patent: 4924704 (1990-05-01), Gaston
patent: 4967181 (1990-10-01), Iizuka et al.

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