Gas and liquid contact apparatus – Fluid distribution – Valved
Reexamination Certificate
2005-08-18
2010-06-29
Chiesa, Richard L (Department: 1797)
Gas and liquid contact apparatus
Fluid distribution
Valved
C261S050100, C261S059000, C261S078100
Reexamination Certificate
active
07744066
ABSTRACT:
A carburetor includes an air inlet with a mechanically adjustable air valve, a mechanically adjustable atomizer discharging in the air inlet, and a mechanical metering device connected with the air valve and the atomizer, maintaining a stoichiometric ratio between amounts of air and fuel. Additionally, the carburetor includes a fuel pressure regulating unit to regulate the fuel pressure of fuel injected in the air inlet, based on one or more dynamic engine load parameters under which a vacuum signal in the air inlet is obtained via a vacuum intake conduit discharging into the air inlet. By regulating the fuel pressure also in dependence of the measured vacuum signal, the emission of unburned fuel is reduced under certain dynamic conditions of the combustion engine.
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Chiesa Richard L
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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