Gas turbine engine nacelle
AssigneeROLLS-ROYCE plc
InventorsChristopher Alan MOSLEY, Angus Roy SMITH, Christopher Thomas John SHEAF, John Richard WELLS
Life of this patent
Estimating the term…
Abstract
A nacelle for a turbofan gas turbine engine is provided. An inner wall of the nacelle defines an air intake which directs air into the fan section of the engine. The intake has, in flow series, an intake lip, a throat and a diffuser. The diffuser has, in flow series, first and second flow conditioning sections over both of which the flow cross-sectional area of the diffuser increases with increasing downstream distance from the throat. In addition, over the second section the nacelle inner wall lies substantially on a surface of an oblique circular cone having an apex which is offset from the centreline of the engine.
Claims10
A nacelle for a turbofan gas turbine engine, an inner wall of the nacelle defining an air intake which directs air into the fan section of the engine, the intake having, in flow series, an intake lip, a throat and a diffuser;
- wherein the diffuser has, in flow series, first and second flow conditioning sections over both of which the flow cross-sectional area of the diffuser increases with increasing downstream distance from the throat, and over the second section the nacelle inner wall lying substantially on a surface of an oblique circular cone having an apex which is offset from the centreline of the engine.
Dependencies are inferred from the claim text.