Gas turbine engine nozzle loft for thrust reverser
AssigneePratt & Whitney Canada Corp.
InventorsMark Cunningham, Eray Akcayoz
Life of this patent
Estimating the term…
Abstract
An engine nacelle assembly includes a nacelle that defines a flow path between an intake end and an exhaust end, and a nozzle that is disposed at the exhaust end of the nacelle about a central axis. The nozzle includes opposing thrust reverser openings and thrust reverser doors. A cross-sectional area transverse to the central axis proximate a forward side of each of the opposing thrust reverser openings is oval shaped with an offset radius within offset arc segments that are aligned with the opposing thrust reverser openings and a first radius outside of the offset arc segment. The first radius is less than the offset radius.
Claims20
An engine nacelle assembly comprising:
- a nacelle defining a flow path between an intake end and an exhaust end;
- and
- a nozzle disposed at the exhaust end of the nacelle about a central axis, the nozzle including an inlet spaced axially apart from an exit along the central axis, opposing thrust reverser openings and thrust reverser doors, wherein an inner peripheral surface of the nozzle within a plane transverse the central axis at each of the inlet and the exit is of a constant radius and a cross-sectional area transverse to the central axis proximate and forward of a forward side of each of the opposing thrust reverser openings is defined by the inner surface of the nozzle that includes a first radius and an offset radius that is offset from the first radius within opposing offset arc segments aligned with the opposing thrust reverser openings, wherein the first radius is disposed between the offset segments and the first radius is less than the offset radius.
A thrust reverser for a turbine engine comprising:
- a nozzle including an inlet and exit spaced axially apart along a central axis, opposing thrust reverser openings and first and second side arms disposed on either side of each of the opposing thrust reverser openings, wherein an inner surface of the nozzle within a plane transverse to the central axis at each of the inlet and the exit is of a constant radius;
- and
- thrust reverser doors movable between a closed position covering a corresponding one of the opposing thrust reverser openings and an open position uncovering the opposing thrust reverser openings, wherein a cross-sectional area transverse to the central axis proximate and forward of a forward side of each of the opposing thrust reverser openings is defined by the inner surface of the nozzle that includes a first radius and an offset radius that is offset from the first radius within opposing offset arc segments aligned with the opposing thrust reverser openings, wherein the first radius is disposed between the offset arc segments and is less than the offset radius.
A turbine engine assembly comprising:
- a core engine;
- a nacelle surrounding at least a portion of the core engine defining a flow path between an intake end and an exhaust end;
- and a nozzle disposed at the exhaust end of the nacelle, the nozzle including an inlet and exit spaced apart axially along a central axis, opposing thrust reverser openings, and thrust reverser doors movable between a closed position covering a corresponding one of the opposing thrust reverser openings and an open position uncovering the opposing thrust reverser openings, wherein an inner peripheral surface of the nozzle within a plane transverse to the central axis at each of the inlet and the exit is of a constant radius and a cross-sectional area transverse to the central axis proximate and forward of a forward side of each of the opposing thrust reverser openings is defined by the inner surface of the nozzle that includes a first radius and an offset radius that is offset from the first radius within opposing offset arc segments aligned with the opposing thrust reverser openings, wherein the first radius is disposed between the opposing offset arc segments and is less than the offset radius.
Dependencies are inferred from the claim text.