Fuel supply system with carburetor air bleed control

Details Fuel supply system with carburetor air bleed control Fuel supply system with carburetor air bleed control

1996-09-30

1998-03-03

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Auxiliary control of carburetor fuel metering

F02M 724

Patent

active

057223726

ABSTRACT:
A single cylinder engine is equipped with a carburetor having an electrically controlled air bleed control valve. A microcomputer of an electronic controller calculates a target opening timing and a target opening time period of the air bleed control valve. The microcomputer, receiving a rotation pulse from a rotation sensor indicative of an engine rotational position, opens the air bleed control valve at the calculated target opening timing and for the calculated target opening period so that the air bleed control valve controls an amount of air-bleeding which in turn controls an air-fuel ratio of mixture supplied to the engine.

REFERENCES:
patent: 3861366 (1975-01-01), Masaki et al.
patent: 4483300 (1984-11-01), Hosaka et al.
patent: 4793306 (1988-12-01), Swain

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