Gas and liquid contact apparatus – Fluid distribution – Pumping
Patent
1985-10-21
1987-06-02
Miles, Tim
Gas and liquid contact apparatus
Fluid distribution
Pumping
261 52, 261443, 2611212, 261 63, 261 692, 261 48, 261 395, 261DIG39, F02M 726
Patent
active
046701940
ABSTRACT:
A carburetor including a fuel inlet and first air inlet delivering fuel and air to a location at which they are intermixed, and from which they flow toward an outlet of the device, with additional air being introduced into the stream through a second air inlet at a location downstream of the fuel inlet and the first air inlet. A fuel metering valve may deliver fuel to the fuel inlet in precisely measured fashion, with the fuel being supplied to the metering valve by a pressure regulator. The second air inlet may include an air valve assembly having sleeves with apertured side walls which are relatively rotatable to vary the rate of delivery of air through that valve assembly. Full vaporization of the fuel may be enhanced by introduction of air into the stream or streams of intermixed fuel and air at other locations along a circuitous path or paths followed by the fuel air mixture. The mixture may be directed through tapering passages acting to increase the velocity of the mixture to a maximum velocity point at which some of the additional air is injected laterally into the stream. Automatic control mechanism responsive to engine vacuum and to a temperature actuated element functions to maintain the pressure of the fuel delivered to a fairly high value during starting of the engine and until it reaches a predetermined operating temperature, at which time the pressure automatically reduces to a lower operating value.
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Buford Charles G.
Buford Wesley E.
Green William P.
Miles Tim
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