Air-fuel ratio control system for an internal combustion engine

Details Air-fuel ratio control system for an internal combustion engine Air-fuel ratio control system for an internal combustion engine

1979-12-14

1981-09-29

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Having fluidic logic control means

123589, F02M 712, F02M 110, F02B 7510

Patent

active

042916593

ABSTRACT:
The air-fuel ratio for an internal combustion engine is controlled at the three stages: (A) when the engine temperature is lower than a first predetermined value, the air-fuel ratio is controlled only by a choke valve, (B) when the engine is at a temperature of the first predetermined value to a second predetermined value, the air-fuel ratio is controlled according to the output signals of engine temperature detecting means, and (C) when the engine temperature is higher than the second predetermined value, the air-fuel ratio is controlled according to the signals from air-fuel ratio detecting means.

REFERENCES:
patent: 4111010 (1978-09-01), Minami
patent: 4122809 (1978-10-01), Iwasa
patent: 4167924 (1979-09-01), Carlson et al.
patent: 4215656 (1980-08-01), Manaka et al.
patent: 4223651 (1980-09-01), Eshelman et al.
patent: 4252098 (1981-02-01), Tomczak et al.

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