Gas and liquid contact apparatus – Fluid distribution – Valved
Patent
1974-02-14
1976-02-24
Miles, Tim R.
Gas and liquid contact apparatus
Fluid distribution
Valved
261 62, 261 72R, 261 52, 261121A, F02M 706, F02M 724
Patent
active
039404609
ABSTRACT:
An air valve type carburetor is described having an enlarged mixing chamber in an induction duct. Fuel is supplied to the mixing chamber at a plurality of annularly spaced locations about the circumference of the mixing chamber. An air valve having an umbrella-shaped disc is positioned at the entrance to the mixing chamber for regulating the flow of the air into the mixing chamber in response to the vacuum pressure prevailing in the mixing chamber. The air valve is designed to direct the air radially outward over the disc and along the periphery of the mixing chamber and to create a pressure depression behind the valve to cause the air to flow radially inward in a turbulent eddy into the central portion of the mixing chamber to thoroughly mix the fuel with the air. Fuel is metered to the mixing chamber in amounts responsive to the manifold pressure, atmospheric pressure and mixing chamber pressure. Additionally, the fuel is premixed with air prior to discharge into the mixing chamber. The fuel delivery system includes a plurality of annular chambers about the induction duct with one chamber serving as a fuel well with a plurality of fuel tubes extending from the well to the mixing chamber.
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