Variable venturi type carburetor

Details Variable venturi type carburetor Variable venturi type carburetor

1979-09-25

1981-06-23

Miles, Tim R.

Gas and liquid contact apparatus

Fluid distribution

Valved

261DIG67, 123519, F02M 508

Patent

active

042750164

ABSTRACT:
A variable venturi type carburetor incorporating a changeover valve which conducts the fuel vapor in the float chamber either into the internal passage leading to the suction pipe of the carburetor or into the external passage leading to the canister. The changeover valve is actuated via a rod projecting into the intake passage by a suction piston which is displaced according to the amount of air drawn into the engine and which abuttingly contacts the rod. With this invention, an electromagnetic valve employed in the conventional carburetor can be obviated and the structure of the carburetor becomes simple and small.

REFERENCES:
patent: 3548797 (1970-12-01), Hagihara et al.
patent: 3618578 (1971-11-01), Swatman et al.
patent: 3829069 (1974-08-01), Hailstone et al.

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