Carburetor start pump circuit

Details Carburetor start pump circuit Carburetor start pump circuit

1996-05-24

1998-01-13

Dolinar, Andrew M.

Internal-combustion engines

Starting device

Auxiliary fuel supply device

12317914, 123DIG5, 261 35, F02M 116

Patent

active

057067740

ABSTRACT:
A carburetor start pump circuit, for starting an engine, has an auxiliary fuel pump mounted on a relatively standard carburetor body, a pulse passageway extending through the carburetor body to the auxiliary fuel pump, and a fuel circuit having an intake side extending from a metering chamber in the carburetor body to the auxiliary pump where it is interconnected to a discharge side extending from the auxiliary pump to a throttle bore in the air intake of the carburetor body. To facilitate control of fuel flow, the fuel circuit includes inlet and discharge check valves and a metering jet.

REFERENCES:
patent: 3743254 (1973-07-01), Tuckey
patent: 4159012 (1979-06-01), Pizzuto et al.
patent: 4554896 (1985-11-01), Sougawa
patent: 4814114 (1989-03-01), Charmley
patent: 5150673 (1992-09-01), Hoshiba et al.

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