Acceleration pump for a carburetor

Details Acceleration pump for a carburetor Acceleration pump for a carburetor

1979-11-29

1981-07-14

Miles, Tim R.

Gas and liquid contact apparatus

Fluid distribution

Pumping

92140, 417470, 417471, F02M 708

Patent

active

042786185

ABSTRACT:
An acceleration pump for a carburetor incorporating first and second pump levers rockably secured to the carburetor body and moved via an acceleration rod connected at one end to the pump lever and a throttle lever connected at one end to the acceleration rod by a throttle valve rockably installed within the barrel of the carburetor, thereby telescopically moving a pump rod secured to a piston of a piston type acceleration pump or to a diaphragm of a diaphragm type acceleration pump. The acceleration pump thus employing the first and second pump levers can obtain an ideal fuel flow curve by increasing the fuel injection time thereof into the air intake opening of the carburetor to improve the exhaust gas purification while improving the drivability and acceleration of a vehicle by preventing a temporarily lean air/fuel ratio of the air/fuel mixture supplied to the carburetor immediately after the acceleration of the vehicle.

REFERENCES:
patent: 2299863 (1942-10-01), Trisler
patent: 2345168 (1944-03-01), Wirth et al.
patent: 2403390 (1946-07-01), Moseley et al.
patent: 2732193 (1956-01-01), Wentz, Jr.
patent: 2969745 (1961-01-01), Johnson et al.
patent: 3764119 (1973-10-01), Niebrzydoski
patent: 4075294 (1978-02-01), Saito et al.

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