Closed loop air fuel ratio control system using exhaust composit

Details Closed loop air fuel ratio control system using exhaust composit Closed loop air fuel ratio control system using exhaust composit

1977-06-14

1978-10-10

Cox, Ronald B.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123 32EE, 60276, F02M 700, F02B 300

Patent

active

041190726

ABSTRACT:
In a closed loop air fuel ratio control system, a throttle position detector senses full throttle operation. Means are provided to disable or clamp the closed loop to a minimum control level to permit reduction in the air fuel ratio below the stoichiometric value. The engine is allowed to operate with increased fuel to give more output power than is provided by the stoichiometric air fuel ratio.

REFERENCES:
patent: 3796200 (1974-03-01), Knapp
patent: 3903853 (1975-09-01), Kizlek
patent: 3910241 (1975-10-01), Fujisawa et al.
patent: 3939654 (1976-02-01), Creps
patent: 3986352 (1976-10-01), Casey

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