Gas and liquid contact apparatus – Fluid distribution – Valved
Patent
1975-02-07
1976-07-20
Miles, Tim R.
Gas and liquid contact apparatus
Fluid distribution
Valved
261121A, 261 62, 261121B, 261DIG63, F02M 724
Patent
active
039707300
ABSTRACT:
A variable venturi carburetor comprised of an open induction duct enclosing coaxial inside first and outside second venturi members. The second venturi member is axially movable relative to the first venturi member in response to operation of a throttle linkage to vary the volume and velocity of air passing through a restricted cross section between the two venturi members and into a downstream mixing chamber. Fuel, supplied from a float chamber within the induction duct, is released into the inwardly moving air through a fuel supply orifice and an idle fuel supply orifice. An idle air supply is provided to bypass the restricted cross section under idling conditions. Also, an intermediate phase bypass duct is provided to release air into the mixing chamber, in addition to air entering through the restricted cross section, during intermediate R. P. M. conditions. The caburetor is also designed to bleed air into the fuel being delivered to the mixing chamber in order to supply a pre-mixed charge to the mixing chamber that may then be thoroughly mixed with the air in the chamber.
REFERENCES:
patent: 1184873 (1916-05-01), Raymond
patent: 1394452 (1921-10-01), Taft
patent: 1441992 (1923-01-01), Meden
patent: 1467333 (1923-09-01), Riege
patent: 1623347 (1927-04-01), Kelley et al.
patent: 1733668 (1929-10-01), Leibing
patent: 1803150 (1931-04-01), Stokes
patent: 1944547 (1934-01-01), Dansreau
patent: 2887309 (1959-05-01), Raynor
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