Electronic closed loop air-fuel ratio control system

Details Electronic closed loop air-fuel ratio control system Electronic closed loop air-fuel ratio control system

1977-05-09

1980-06-24

Engle, Samuel W.

Internal-combustion engines

Noncompression

123119EC, 60276, F02B 502

Patent

active

042089905

ABSTRACT:
The operation of an electronic closed loop air-fuel ratio control system is inhibited while exhaust gas temperature is low, and a rich air-fuel mixture is intermittently fed to an internal combustion engine in order to properly initiate the operation of the system.

REFERENCES:
patent: 3938479 (1976-02-01), Oberstadt
patent: 4019470 (1977-04-01), Asano
patent: 4027477 (1977-06-01), Storey
patent: 4029061 (1977-06-01), Asano
patent: 4046118 (1977-09-01), Aono
patent: 4112880 (1978-09-01), Asano et al.
patent: 4117815 (1978-10-01), Ikeura

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