Variable venturi type carburator

Details Variable venturi type carburator Variable venturi type carburator

1979-05-21

1980-10-14

Miles, Tim R.

Gas and liquid contact apparatus

Fluid distribution

Valved

F02M 906

Patent

active

042281113

ABSTRACT:
A variable venturi type carburetor having a suction chamber disposed upstream from the throttle valve, a suction piston having an increased diameter portion in sliding contact with the suction chamber and movable back and forth in the suction chamber, a piston rod of the suction piston being in sliding contact with a guide rod of the suction chamber, and a compression spring interposed between the suction chamber and the suction piston. In this carburetor, the space between the guide rod and the piston rod is filled with air rather than damper oil. Additionally, the outer peripheral surface of a flange formed at the end of the guide rod and the inner peripheral surface of the suction piston cooperate with each other in defining therebetween a pressure transmission delaying clearance means through which a gas damper chamber defined in the suction piston is communicated with a vacuum chamber defined in the suction chamber at the opposite side of the flange to the damper chamber.

REFERENCES:
patent: 1822712 (1931-09-01), Skinner
patent: 3424441 (1969-01-01), Caisley
patent: 3493217 (1970-02-01), Farley

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