Gas and liquid contact apparatus – Fluid distribution – Systems
Patent
1977-11-25
1978-11-07
Miles, Tim R.
Gas and liquid contact apparatus
Fluid distribution
Systems
261121B, 261DIG69, 261DIG74, F02M 724
Patent
active
041246616
ABSTRACT:
A carburetor for an internal combustion engine has at least two air passageways through which air is drawn into the engine, at least one fuel circuit for each air passageway through which fuel is drawn from a source thereof into the passageway and mixed with air passing therethrough to produce an air-fuel mixture combusted in the engine. The amount of fuel flowing through each fuel circuit is a function of the sub-atmospheric air pressure level to which each fuel circuit is subjected. An improvement comprises apparatus for balancing the fuel flow in the fuel circuits with the pressure level in each fuel circuit being sensed, the pressure levels in the fuel circuits differing as a result of the flow characteristics thereof. Air is introduced into one of the fuel circuits to modulate the quantity of fuel flowing therethrough. The amount of air introduced into the one fuel circuit is controlled as a function of the difference between the sensed pressure levels in the fuel circuits whereby the quantity of fuel drawn through the one fuel circuit is adjusted until it substantially equals the amount of fuel drawn through the other fuel circuit so the resulting air-fuel mixtures produced in the air passageways are substantially equal.
REFERENCES:
patent: 2252120 (1941-08-01), Ericson
patent: 3648987 (1972-03-01), Arikawa
patent: 3675906 (1972-07-01), Baldwin et al.
patent: 3921612 (1975-11-01), Aono
patent: 4007721 (1977-02-01), Regueiro
patent: 4046118 (1977-09-01), Aono
patent: 4050428 (1977-09-01), Masaki
ACF Industries Incorporated
Miles Tim R.
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