Apparatus for supplying start-fuel in the internal combustion en

Details Apparatus for supplying start-fuel in the internal combustion en Apparatus for supplying start-fuel in the internal combustion en

1988-08-29

1989-09-05

Dolinar, Andrew M.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123180P, 261DIG8, F02M 108

Patent

active

048628484

ABSTRACT:
An apparatus for supplying a start-fuel to an internal combustion engine for a portable type machine such as a chain saw or brush cutter which has an electric battery for use in starting. An electrically driven reversible pump is used to draw fuel from a diaphragm carburetor metering chamber into a fuel reservoir and also to draw fuel from a fuel tank into the metering chamber. Under cold-start conditions, the pump is reversed and fuel from the reservoir is directed to a jet at the entrance of the carburetor venturi passage to provide a rich mixture to assist in starting.

REFERENCES:
patent: 3371658 (1968-03-01), Turner
patent: 4373479 (1983-02-01), Billingsley et al.
patent: 4508068 (1985-04-01), Tuggle et al.
patent: 4676204 (1987-06-01), Iroguchi et al.

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