Misfire detection system for an internal combustion engine

Details Misfire detection system for an internal combustion engine Misfire detection system for an internal combustion engine

1974-05-20

1977-02-08

Burns, Wendell E.

Internal-combustion engines

Noncompression

60276, F02M 5100

Patent

active

040067181

ABSTRACT:
A misfire detection system for an internal combustion engine is arranged to generate a first signal indicative of the oxygen concentration in the exhaust gas. Such first signal, whose instantaneous value is normally employed to adjust the engine fuel supply to control its air-to-fuel ratio, is additionally employed to interrupt the supply of fuel and secondary air to the engine when the first signal remains above a prescribed level after the elapse of a prescribed duration of the fuel supply adjustment.

REFERENCES:
patent: 3670565 (1972-06-01), Paulson
patent: 3738108 (1973-06-01), Goto et al.
patent: 3782347 (1974-01-01), Schmidt et al.
patent: 3831563 (1974-08-01), Brittain et al.
patent: 3851469 (1974-12-01), Eichler et al.
patent: 3875907 (1975-04-01), Wessel et al.

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