Variable venturi-type carburetor

Details Variable venturi-type carburetor Variable venturi-type carburetor

1982-08-17

1984-10-16

Miles, Tim

Gas and liquid contact apparatus

Fluid distribution

Valved

261 44C, F02M 906

Patent

active

044773927

ABSTRACT:
A variable venturi-type carburetor comprising a vacuum chamber and an atmospheric pressure chamber which are separated by a suction piston. A needle is mounted on the central portion of the tip face of the suction piston. A suction hole, interconnecting the vacuum chamber to a venturi portion of the carburetor, is formed on the tip face of the suction piston at a position located upstream of the needle. The vacuum chamber is open to the atmosphere via a flow rate control valve apparatus when the engine temperature is low. The vacuum chamber is disconnected from the atmosphere by the flow rate control valve apparatus when the engine temperature is high.

REFERENCES:
patent: 3243167 (1966-03-01), Winkler
patent: 3342463 (1967-09-01), Date et al.
patent: 3875917 (1975-04-01), Scarritt, Sr.
patent: 4110417 (1978-08-01), Konishi et al.
patent: 4276238 (1981-06-01), Yoshikawa et al.
patent: 4377538 (1983-03-01), Wada

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