Fossil fuel burners
AssigneeRolls-Royce Power Engineering PLC
InventorPeter F. Hufton
Life of this patent
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Abstract
A fossil fuel air burner nozzle is provided with a wall (22) at its inlet, in which are apertures (34) which narrow in a direction radially outward of the nozzle. Each aperture is axially aligned with a respective bluff member (18) at the outlet so as to deliver thereto a fuel air mix flow at a velocity which is graded in said radial direction so as to ensure flame retention on the bluff members (18).
Claims6
A fossil and air burner nozzle comprising a primary nozzle having an axis and nested, inner and outer coaxial passages, each passage being connected to a common supply conduit for receipt of a flow of mixed fossil fuel and air, said outer passage having an inlet end provided with a wall having apertures therethrough, said apertures being spaced about said axis in a symmetrical manner, said outer passage having an outlet end provided with a peripheral, equi-angular array of bluff members with each bluff member being axially aligned with a respective aperture in said wall.
Dependencies are inferred from the claim text.