Electronically controlled carburetor for internal combustion eng

Details Electronically controlled carburetor for internal combustion eng Electronically controlled carburetor for internal combustion eng

1979-07-10

1981-07-28

Myhre, Charles J.

Internal-combustion engines

Charge forming device

Auxiliary control of carburetor fuel metering

261DIG78, F02M 2304

Patent

active

042804620

ABSTRACT:
An electronically-controlled carburetor is disclosed. This electronically-controlled carburetor is provided with a control fuel path in addition to a main fuel path opened to the venturi of the air horn. This control fuel, after being introduced to a constant pressure chamber regulated at a constant pressure, is further introduced to the air horn through a sonic flow nozzle provided at the opening of the constant pressure chamber, together with the control air introduced to the constant pressure chamber. The amount of the control fuel introduced to the air horn and the amount of the control air are regulated on the basis of control electrical signals generated by an electronic control circuit supplied with data indicative of engine running conditions. In this way, the air-fuel ratio is properly controlled over the entire range of engine running conditions.

REFERENCES:
patent: 3802402 (1974-04-01), Swatman
patent: 3814389 (1974-06-01), August
patent: 3901202 (1975-08-01), Hollis, Jr. et al.
patent: 3983189 (1976-09-01), Taylor
patent: 4135482 (1979-01-01), Bier et al.
patent: 4169439 (1979-10-01), Tsiang et al.
patent: 4172433 (1979-10-01), Bianchi et al.
patent: 4173956 (1979-11-01), Ikeura et al.

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