Fuel delivery system for combustion devices
OwnerSherwood F. Webster, Richard L. Heiseinventors
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Abstract
An air-fuel mixture is delivered at a certain predetermined velocity through a pressure-regulated gate to a dual screen atomizer consisting of a first comparatively coarse mesh screen in contact with a finer mesh screen close to the throat of the gate. The liquid fuel is atomized to uniform size droplets in the small micron range and a homogeneous charge is created in an enlarged plenum downstream from the dual screen atomizer. Pressure in the downstream plenum is reduced in comparison to the pressure existing in the fuel mixture delivery passage upstream from the gate.
Claims10
A fuel delivery system for combustion devices comprising means to deliver air and liquid fuel in one direction including a confining passage, an adjustable valve means across the confining passage, a dual atomizing screen assembly close to the downstream side of the valve means including a comparatively coarse mesh upstream screen element and a finer mesh downstream screen element, the two screen elements lying in contact with each other substantially, a plenum for the atomized homogeneous fuel charge immediately downstream from the dual atomizing screen assembly and being considerably larger in cross sectional size than the confining passage, and a pressure regulator means controlling opening and closing movement of said valve means to maintain a constant velocity of air and liquid fuel through an adjustable throat of the valve means, the pressure regulator means including parts in communication with said plenum and confining passage to constantly sense the pressures therein.
Dependencies are inferred from the claim text.