Carburetor

Details Carburetor Carburetor

1982-07-01

1984-12-04

Miles, Tim R.

Gas and liquid contact apparatus

Fluid distribution

Valved

261 39E, 261121B, 261 67, 261 50A, 1375992, F02M 722

Patent

active

044863608

ABSTRACT:
A carburetor with a fuel nozzle in the throat, an upstream butterfly valve, a downstream butterfly valve, a first vacuum actuator for controlling the upstream butterfly valve as a function of vacuum in the throat, and a second vacuum actuator for controlling pre-mix air supply to the fuel nozzle as a function of vacuum downstream from the downstream butterfly valve. A cold start control for disabling the second vacuum actuator for a predetermined period of time at starting to block flow of pre-mix air to the fuel nozzle, including a cold start valve with a thermal responsive bimetal and a resistance heater for timing of the cold start operation. A main fuel control valve with an idle bypass passage therethrough, and means for adjusting the rate of flow through the idle bypass passage.

REFERENCES:
patent: 1242245 (1917-10-01), Rutz
patent: 2694412 (1954-11-01), Jaros
patent: 2981245 (1961-04-01), Sarto
patent: 3493217 (1970-02-01), Farley
patent: 3810606 (1974-05-01), Masaki
patent: 4118444 (1978-10-01), Abbey
patent: 4298549 (1981-11-01), Woodworth
patent: 4318070 (1982-03-01), Dohrmann
patent: 4393012 (1983-07-01), Kato et al.

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