Method of controlling the fuel-air ratio of an internal combusti

Details Method of controlling the fuel-air ratio of an internal combusti Method of controlling the fuel-air ratio of an internal combusti

1992-12-15

1994-04-05

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

F02D 4106, F02D 4114

Patent

active

052995496

ABSTRACT:
In a method of controlling the fuel-air ratio of an internal combustion engine the combustion chamber and its contents are preheated at times when the engine is started from cold and during other operative conditions of thermal energy deficiency. The engine is operated with a lean fuel-air mixture from the very beginning when the engine is started, and the fuel-air ratio is controlled exclusively by oxygen sensor means in the exhaust gas.

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