Carburetor

Details Carburetor Carburetor

1980-09-03

1982-05-25

Miles, Tim R.

Gas and liquid contact apparatus

Fluid distribution

Liquid supply tank

261DIG67, F02M 508

Patent

active

043316174

ABSTRACT:
A carburetor comprises an intake passage for supplying air and fuel, a venturi located in the intake passage, a nozzle opened in the venturi, a float member communicated with a fuel supply source and with the nozzle, an air vent for communicating the space above the liquid surface in the float chamber with the intake passage upstream of the venturi, and two communication conduits each of which has one end opened above the liquid surface in the float chamber and the other end opened at a suitable position in the intake passage in such a manner that a pressure difference is caused between the two communication conduits. One end of the first communication means is provided close to a fuel opening connected to the fuel supply source in the float chamber and the other end thereof receives higher pressure. One end of the second communication means is provided far from the fuel opening and the other end thereof receives lower pressure. With this structure, air is allowed to flow, from one end of the first communication means close to the fuel opening to one end of the second communication means far from the fuel opening, within the space above the liquid surface in the float chamber, to cool down and push away fuel bubbles formed on the liquid surface nearby the fuel opening in the float chamber, thereby preventing the fuel jetting from the air vent into the intake passage.

REFERENCES:
patent: 1586683 (1926-06-01), Mock
patent: 1752959 (1930-04-01), Monier
patent: 2694560 (1954-11-01), Olson
patent: 2731251 (1956-01-01), Lunn
patent: 2957683 (1960-10-01), Eberhardt
patent: 3307837 (1967-03-01), Winkler
patent: 3656736 (1972-04-01), York, Jr.
patent: 3742924 (1973-07-01), Bachle
patent: 3959417 (1976-05-01), Tateno et al.
patent: 3968189 (1976-07-01), Bier
patent: 4040399 (1977-08-01), Meininger
Foundations of Fluid Mechanics, S.W. Yuan, Prentice-Hall, Inc., Englewood Cliffs, N.J., Cpr. 1967, pp. 375-378.

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