Air intake side secondary air supply system for an internal comb

Details Air intake side secondary air supply system for an internal comb Air intake side secondary air supply system for an internal comb

1984-09-19

1985-12-31

Cuchlinski, Jr., William A.

Internal-combustion engines

Starting device

For airplane

123587, 123588, F02M 102, F02M 2310

Patent

active

045613940

ABSTRACT:
An air intake side secondary air supply system for an internal combustion engine equipped with an automatic choke valve and a fast idle system is provided with a detection means for detecting an operating condition of the engine in which the fast idle system is operated to open the throttle valve. The supply of the secondary air for the feedback control is stopped when a detection signal is produced by the detection means so that the feedback control of the air-fuel ratio is suspended when the throttle valve is opened by means of the fast idle system while the choke valve may be substantially closed. Thus, a hunting of the engine speed which might have occured after the start of the feedback control is prevented.

REFERENCES:
patent: 4334515 (1982-06-01), Otsuka
patent: 4369755 (1983-01-01), Saito
patent: 4484552 (1984-11-01), Kobayashi et al.

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