Variable venturi type carburetor

Details Variable venturi type carburetor Variable venturi type carburetor

1985-04-18

1986-09-02

Miles, Tim

Gas and liquid contact apparatus

Fluid distribution

Valved

261 44B, 261 52, F02M 906

Patent

active

046095055

ABSTRACT:
A variable venturi type carburetor comprising a carburetor body provided with a suction passage for flow of air therethrough, a slide valve supported by the body for slidable movement across the suction passage to serve as a variable venturi and a butterfly throttle valve pivotably supported by the carburetor body downstream of the slide valve. An interlocking mechanism connects the slide valve and butterfly throttle valve together for operating in correspondence with one another and one of the valves is operated by application of an external force thereto. A low-speed fuel nozzle opens into the suction passage in the vicinity of the butterfly throttle valve, an intermediate- and high-speed main fuel nozzle opens into the suction passage opposite the slide valve, and a low- and intermediate-speed primary fuel nozzle opens into the suction passage between the slide valve and the butterfly throttle valve. The lower edge of the slide valve is formed with an inverted cutaway to provide a widened passage facing in the downstream direction of the suction passage.

REFERENCES:
patent: 1375898 (1921-04-01), Ciglia et al.
patent: 2047661 (1936-07-01), Arff
patent: 3167599 (1965-01-01), Brown et al.
patent: 3169154 (1965-02-01), Martin et al.
patent: 3333832 (1967-08-01), O'Neill
patent: 3738622 (1973-06-01), Tuckey
patent: 4442046 (1984-04-01), Edmonston et al.

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