Mounting a piston in an accelerator pump of a carburetor and ass

Details Mounting a piston in an accelerator pump of a carburetor and ass Mounting a piston in an accelerator pump of a carburetor and ass

1981-07-24

1982-12-07

Miles, Tim R.

Gas and liquid contact apparatus

Fluid distribution

Pumping

417238, F02M 708

Patent

active

043626734

ABSTRACT:
A carburetor comprising an accelerator pump having a working chamber containing fuel and a piston displaceable in the working chamber to discharge fuel therefrom to an inlet passage of the carburetor. A sleeve is secured to the carburetor housing at one end of the working chamber and the piston is slidably guided by the sleeve for movement into and out of the chamber. A sealing ring adjoins the sleeve and includes a free sealing lip directed into the chamber and sealingly bearing against the piston. In order to vary the amount of fuel delivered to the inlet passage for a given stroke of the piston, a piston and sleeve of different diameter are employed while the linkage mechanism between the throttle valve and the piston can remain without change.

REFERENCES:
patent: 542766 (1895-07-01), Hultz
patent: 1770404 (1930-07-01), Holley
patent: 2035636 (1936-03-01), Chandler
patent: 2312819 (1943-03-01), Heftler
patent: 2892622 (1959-06-01), Goodyear
patent: 2989227 (1961-06-01), Statham
patent: 3730495 (1973-05-01), Elam
patent: 4003968 (1977-01-01), Rickert

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