Acceleration pump of carburetor

Details Acceleration pump of carburetor Acceleration pump of carburetor

1978-07-19

1980-09-30

Miles, Tim R.

Gas and liquid contact apparatus

Fluid distribution

Pumping

92 13, 92 131, F02M 708

Patent

active

042255350

ABSTRACT:
In an acceleration pump of a carburetor for an internal combustion engine including a cylinder and a piston reciprocatorily inserted in the cylinder, the piston is formed in its upper portion with a transverse bore for a stopper member to extend therethrough to be urged by a heat sensitive element to move in a direction at right angles to the direction of reciprocatory movement of the piston, so that additional fuel for acceleration can be supplied to the engine in a quantity which is accurately corrected to accommodate itself to changes in ambient temperature, by means of the heat sensitive element. The transverse bore is formed at its top wall and bottom wall with projections, and the stopper member is formed at its upper surface and lower surface with depressed portions, so as to enable the lengths of the downward and upward strokes of the piston to be controlled in accordance with changes in ambient temperature. Thus the acceleration pump is capable of supplying to the engine additional fuel for acceleration in a quantity which is corrected to accommodate itself for changes in ambient temperature.

REFERENCES:
patent: 1881996 (1932-10-01), Bicknell
patent: 2048727 (1936-07-01), Boyce
patent: 2158777 (1939-05-01), Renner
patent: 2188355 (1940-01-01), Hunt
patent: 2261829 (1941-11-01), Cross
patent: 2293792 (1942-08-01), Ball
patent: 2355346 (1944-08-01), Weber
patent: 2438463 (1948-03-01), Snader et al.
patent: 3269711 (1966-08-01), Baldwin
patent: 3313530 (1967-04-01), Bickhaus et al.
patent: 3313531 (1967-04-01), Winkely et al.
patent: 3957929 (1976-05-01), Gural et al.
patent: 4108951 (1978-08-01), Niwa et al.

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