Fuel injection control means for internal combustion engines

Details Fuel injection control means for internal combustion engines Fuel injection control means for internal combustion engines

1985-08-13

1987-02-10

Wolfe, Jr., Willis R.

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

Air or combustible mixture entering the combustion chamber...

123445, 123472, F02M 3510

Patent

active

046416200

ABSTRACT:
An engine intake system including a primary and secondary intake passages which are separated from each other and are respectively provided with a primary and a secondary fuel injection valve. The secondary intake passage is closed and the secondary fuel injection valve is inoperable for light load engine operation. When the secondary fuel injection valve is restarted to operate for heavy load engine operation, the quantity of fuel supply is momentarily increased to avoid any stepwise change in the engine output torque. The amount of the increase in the fuel supply is increased in response to a decrease in the engine speed. When operation of the secondary fuel injection valve is stopped, the fuel supply is decreased.

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