Capacitance-type fuel sensor for sensing methanol in methanol-mi

Details Capacitance-type fuel sensor for sensing methanol in methanol-mi Capacitance-type fuel sensor for sensing methanol in methanol-mi

1989-12-15

1993-03-23

Harvey, Jack B.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

324690, 324449, 324450, 73 6143, G01R 2726, G01N 2722

Patent

active

051968010

ABSTRACT:
A fuel sensor for sensing methanol in methanol-mixed fuel, which comprises a structure which defines a fuel passage through which the mixed fuel flows, an electrode assembly including a pair of probe portions which are exposed to the fuel passage, and an electric circuit causing the paired probe portions to exhibit positive and negative characteristics respectively in the mixed fuel. At least the positive probe portion is intimately covered with an electrically insulating film.

REFERENCES:
patent: 2832039 (1958-04-01), Hardesty
patent: 3215900 (1965-11-01), Harvey
patent: 3314005 (1967-04-01), Whitener
patent: 3368147 (1968-02-01), Graham
patent: 3778706 (1973-12-01), Thompson
patent: 3882381 (1975-05-01), Gregory
patent: 4470300 (1984-09-01), Kobayashi
patent: 4510436 (1985-04-01), Raymond
patent: 4559493 (1985-12-01), Goldberg et al.
patent: 4789822 (1988-12-01), Ohmatoi
patent: 4939467 (1990-07-01), Nogami et al.

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