Altitude compensating device of an internal combustion engine

Details Altitude compensating device of an internal combustion engine Altitude compensating device of an internal combustion engine

1980-11-25

1981-09-15

Cox, Ronald B.

Internal-combustion engines

Charge forming device

Having fluidic logic control means

60285, 60276, F02B 3300, F02M 700

Patent

active

042891035

ABSTRACT:
An internal combustion engine comprising a secondary air feed control device for feeding secondary air into the exhaust passage from the air pump. The amount of the secondary air fed into the exhaust passage is controlled by the output signal of an oxygen concentration detector arranged in the exhaust passage. An air-fuel ratio control device is arranged in the main fuel passage of the carburetor for controlling the amount of air bled into the main fuel passage in response to the output signal of the oxygen concentration detector. The amount of the air bled into the main fuel passage is increased as the altitude becomes higher so as to reduce the difference between the stoichiometric air-fuel ratio and an air-fuel ratio of the mixture formed by the carburetor.

REFERENCES:
patent: 4224911 (1980-09-01), Mitsuda
patent: 4231334 (1980-11-01), Peter
patent: 4248196 (1981-02-01), Toelle

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