Variable venturi-type carburetor

Details Variable venturi-type carburetor Variable venturi-type carburetor

1982-08-25

1984-02-28

Miles, Tim R.

Gas and liquid contact apparatus

Fluid distribution

Valved

261121B, 261DIG74, F02M 906

Patent

active

044341113

ABSTRACT:
A variable venturi-type carburetor comprising a vacuum chamber, connected to a venturi portion of the carburetor, and a suction piston actuated in response to a change in vacuum in the vacuum chamber. A fuel passage is formed in the carburetor and is open to the intake passage of the carburetor. The suction piston has a needle extending through the fuel passage. An air bleed passage is connected to the fuel passage. When the level of vacuum in the intake passage becomes smaller than a predetermined level, the amount of air fed into the fuel passage from the air bleed passage is reduced, and the vacuum chamber is caused to be open to the atmosphere.

REFERENCES:
patent: 4117046 (1978-09-01), Nohira et al.
patent: 4167547 (1979-09-01), Takamura et al.
patent: 4360482 (1982-11-01), Asai
patent: 4393012 (1983-07-01), Kato et al.

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