Fuel control apparatus for an internal combustion engine

Details Fuel control apparatus for an internal combustion engine Fuel control apparatus for an internal combustion engine

1985-12-27

1987-02-17

Cuchlinski, Jr., William A.

Internal-combustion engines

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

Air or combustible mixture entering the combustion chamber...

123589, F02M 2300

Patent

active

046431519

ABSTRACT:
The combustion, especially a lean mixture, in an internal combustion engine is improved by providing an additional air introducing device. The device comprises an air by-pass pipe introducing additional air independently from the airflow through an intake manifold and having its outlet in the manifold at the vicinity of an intake valve and an air by-pass valve for adjusting the flow rate of the additional air through the by-pass pipe according to operational conductions of the engine. As a consequence, during the suction stroke of a cylinder, additional air, stagnated in the vicinity of the intake valve, is at first drawn in and then an air-fuel mixture supplied by a fuel injector is supplied to the cylinder. Accordingly, the stratification of combustible fluid is performed within the cylinder, in which an ignition plug is exposed to an upper phase formed by the mixture.

REFERENCES:
patent: 4068472 (1978-01-01), Takata et al.
patent: 4105004 (1978-08-01), Asai et al.

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