Closed loop carburetor air-fuel ratio control apparatus

Details Closed loop carburetor air-fuel ratio control apparatus Closed loop carburetor air-fuel ratio control apparatus

1975-09-15

1977-07-12

Weakley, Harold W.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123119E, 261 70, 261 27, 261DIG74, F02M 3900

Patent

active

040347303

ABSTRACT:
In an internal combustion engine with exhaust means and a carburetor including a fuel bowl, means are provided for delivering fuel to the fuel bowl at a pressure varying in response to the output signal of an air-fuel ratio sensor in the exhaust means to maintain a substantially constant air-fuel ratio to the engine. The fuel supply means may comprise, for example, an electric fuel pump whose input power is varied according to the sensor signal.

REFERENCES:
patent: 3724435 (1973-04-01), Bier
patent: 3730157 (1973-05-01), Gerhold
patent: 3841283 (1974-10-01), Wood
patent: 3841613 (1974-10-01), Eckert
patent: 3899552 (1975-08-01), Bauer

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