Pivot door thrust reverser with variable area nozzle
A gas turbine engine includes a nacelle assembly having a core nacelle defined about an engine axis and a fan nacelle assembly mounted at least partially around the core nacelle to define a fan bypass flow path. The fan nacelle assembly includes a fan duct nacelle section and a fan nozzle nacelle section moveable relative to the fan duct nacelle section. A thrust reverser system includes a plurality of pivot doors movable relative to the fan nacelle assembly between stowed and deployed positions. A variable area fan nozzle is in communication with the fan bypass flow path. A first actuator is mounted to the fan duct nacelle section to actuate the pivot door thrust reverser system, and a second actuator is mounted to the fan duct nacelle section to move the fan nozzle nacelle section relative to the fan duct nacelle section to vary a fan nozzle exit area.
1. A nacelle assembly for a gas turbine engine comprising:
a core nacelle defined about an engine centerline axis;
a fan nacelle assembly mounted at least partially around the core nacelle to define a fan bypass flow path, the fan nacelle assembly including a fan duct nacelle section and a fan nozzle nacelle section moveable relative to the fan duct nacelle section;
a thrust reverser system including a plurality of pivot doors movable relative to the fan nacelle assembly between a stowed position and a deployed position;
a variable area fan nozzle in communication with the fan bypass flow path;
a first actuator mounted to the fan duct nacelle section to actuate the thrust reverser system, wherein the first actuator includes a first housing mounted to the fan duct nacelle section forward of the pivot doors and a first rod that extends outwardly of the first housing to a distal end that is pivotally coupled to at least one pivot door of the plurality of pivot doors; and
a second actuator mounted to the fan duct nacelle section to move the fan nozzle nacelle section relative to the fan duct nacelle section to vary a fan nozzle exit area, and wherein the second actuator includes a second housing mounted to the fan duct nacelle section and a second rod that extends outwardly of the second housing to a distal end that is coupled to the fan nozzle nacelle section, and wherein the second housing is positioned aft of the pivot doors and aft of the first actuator.
2. The nacelle assembly according to claim 1 wherein the first and second actuators operate independently of each other.
3. The nacelle assembly according to claim 1 wherein the first actuator is configured to pivot the plurality of pivot doors relative to the fan duct nacelle section between the stowed and deployed positions as the distal end of the first rod moves relative to the first housing.
4. The nacelle assembly according to claim 1 wherein the second actuator is configured to axially translate the fan nozzle nacelle section relative to the fan duct nacelle section as the distal end of the second rod moves relative to the second housing.
5. The nacelle assembly according to claim 1 wherein the second actuator is configured to axially and radially translate the fan nozzle nacelle section relative to the fan duct nacelle section as the distal end of the second rod moves relative to the second housing.
6. The nacelle assembly according to claim 1 wherein the first actuator comprises a plurality of first actuators.
7. The nacelle assembly according to claim 1 wherein the second actuator comprises a plurality of second actuators.
8. The nacelle assembly according to claim 1 wherein the first actuator comprises a plurality of first actuators and wherein the second actuator comprises a plurality of second actuators, and wherein the first plurality of actuators are positioned forward of the pivot doors and the second plurality of actuators are positioned aft of the pivot doors.
9. The nacelle assembly according to claim 1 wherein the first actuator comprises one of a hydraulically, pneumatically, or electrically driven actuator.
10. The nacelle assembly according to claim 1 wherein the second actuator comprises one of a hydraulically, or electrically driven actuator.
11. The nacelle assembly according to claim 1 wherein the variable area fan nozzle comprises a ported variable area fan nozzle.
12. The nacelle assembly according to claim 1 wherein the variable area fan nozzle comprises a non-ported variable area fan nozzle.
13. A method of operating a gas turbine engine, wherein the engine is provided with a core nacelle defined about an engine centerline axis and a fan nacelle assembly mounted at least partially around the core nacelle to define a fan bypass flow path, the fan nacelle assembly including a fan duct nacelle section and a fan nozzle nacelle section positioned aft of the fan duct nacelle section;
the method comprising the steps of:
selectively actuating a pivot door thrust reverser system with a first actuator mounted to the fan duct nacelle section to move pivot doors between a stowed position and a deployed position, wherein the first actuator includes a first housing mounted to the fan duct nacelle section forward of the pivot doors and a first rod that extends outwardly of the first housing to a distal end that is pivotally coupled to at least one of the pivot doors; and
selectively actuating a second actuator mounted to the fan duct nacelle section to move the fan nozzle nacelle section relative to the fan duct nacelle section to vary a fan nozzle exit area, wherein the second actuator includes a second housing mounted to the fan duct nacelle section and a second rod that extends outwardly of the second housing to a distal end that is coupled to the fan nozzle nacelle section, and wherein the second housing is positioned aft of the pivot doors and aft of the first actuator.
14. The method according to claim 13 including independently controlling the first and second actuators.
15. The method according to claim 13 including pivoting the plurality of pivot doors relative to the fan duct nacelle section with the first actuator as the distal end of the first rod moves relative to the first housing.
16. The method according to claim 13 including axially translating the fan nozzle nacelle section relative to the fan duct nacelle section with the second actuator as the distal end of the second rod moves relative to the second housing.
17. The method according to claim 13 wherein the first actuator comprises a plurality of first actuators.
18. The method according to claim 13 wherein the second actuator comprises a plurality of second actuators.
19. The method according to claim 13 wherein the first actuator comprises a plurality of first actuators and wherein the second actuator comprises a plurality of second actuators, and wherein the first plurality of actuators are positioned forward of the pivot doors and the second plurality of actuators are positioned aft of the pivot doors.
20. The method according to claim 13 wherein the variable area fan nozzle comprises a ported variable area fan nozzle.
21. The method according to claim 13 wherein the variable area fan nozzle comprises a non-ported variable area fan nozzle.
22. The method according to claim 13 wherein the variable area fan nozzle comprises a ported variable area fan nozzle that moves both axially and radially.