Apparatus for enriching fuel upon engine starting operation

Details Apparatus for enriching fuel upon engine starting operation Apparatus for enriching fuel upon engine starting operation

1982-10-27

1984-11-06

Cuchlinski, Jr., William A.

Internal-combustion engines

Charge forming device

Auxiliary control of carburetor fuel metering

123179G, F02M 700

Patent

active

044806183

ABSTRACT:
An apparatus for enriching an air-fuel mixture supplied by a carburetor upon starting operation of an internal combustion engine comprises a fuel quantity increasing passage which is operative independent of main fuel supply system. The passage has an inlet communicated to a fuel supply source and an outlet opened at a location downstream of a throttle valve. The amount of fuel ejected from the outlet of the passage is controlled by a control signal which represents a product of a value variable in dependence on a suction vacuum, the rotational frequency of the engine and a value variable in dependence on the temperature of engine cooling water.

REFERENCES:
patent: 4346682 (1982-08-01), Mader
patent: 4364354 (1982-12-01), Kosuge et al.

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