Engine arrangement
AssigneeROLLS-ROYCE plc
InventorClive Lockwood
Life of this patent
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Abstract
An engine arrangement for a component subject to icing. The arrangement comprising a manifold as part of a flow path incident upon a heated component. The manifold including holes to create jets having an exit angle toward the component subject to icing. The jets of hot gas are entrained in a core flow passing through the main flow path before washing over a desired incident area of the component. The exit angle and spacing between the jet and the component are determined to reduce disruption of the core flow and/or provide the desired incident area on the component and/or use the minimum amount of hot air.
Claims12
An engine arrangement for de-icing a component subject to icing in use, the arrangement comprising an annular structure defining a main flow path, the component subject to icing being disposed within the main flow path, the annular structure further defining a manifold containing hot gas, the manifold including a hole to direct a jet of the hot gas at an exit angle toward the component subject to icing, the jet of hot gas being entrained in use in a core flow passing through the main flow path before washing over a desired incident area of the component, the exit angle and spacing between the jet and the component being determined to reduce disruption of the core flow and/or provide the desired incident area on the component and/or use the minimum amount of hot gas.
Dependencies are inferred from the claim text.