Apparatus for controlling the mixture of an internal combustion

Details Apparatus for controlling the mixture of an internal combustion Apparatus for controlling the mixture of an internal combustion

1978-10-19

1979-10-16

Myhre, Charles J.

Internal-combustion engines

Noncompression

123119EC, F02B 300

Patent

active

041709675

ABSTRACT:
The fuel mixture of an engine is controlled by a mechanism responsive to the signals from an oxygen sensor located in the exhaust pipe. The oxygen sensor is provided with a heater to permit rapid attainment of normal operating temperatures. The heater is controlled by a switch actuated by a timing circuit. The timing circuit closes the switch whenever the alternating signals from a comparator responsive to sensor signals do not occur, indicating sensor non-operation.

REFERENCES:
patent: 3616274 (1971-10-01), Eddy
patent: 3730686 (1973-05-01), Breitenbach et al.
patent: 3868819 (1975-03-01), Knapp
patent: 3875907 (1975-04-01), Wessel et al.
patent: 3915135 (1975-10-01), Kushida et al.
patent: 3926154 (1975-12-01), Williams
patent: 3938479 (1976-02-01), Oberstadt
patent: 4027477 (1977-06-01), Storey
patent: 4029061 (1977-06-01), Asano
patent: 4030462 (1977-06-01), Sajayama et al.
patent: 4112893 (1978-09-01), Anzai

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