Translating nozzle for mixed flow turbofan engine

Patent metadata

Field	Value
Publication number	US-2019162136-A1
Application number	US-201715822505-A
Country	US
Kind code	A1
Filing date	Nov 27, 2017
Priority date	Nov 27, 2017
Publication date	May 30, 2019
Grant date	—

Abstract

A thrust reverser for a gas turbine engine includes a reverser door pivotally mounted to a frame, an exhaust duct translationally mounted to the frame and an actuator having an actuator rod connected to the reverser door and to the exhaust duct.

First claim

What is claimed:

1 . A thrust reverser, comprising:
a reverser door pivotally mounted to a frame; an exhaust duct translationally mounted to the frame and an actuator having an actuator rod connected to the reverser door and to the exhaust duct.

2 . The thrust reverser of claim 1 , further comprising a door link connecting the reverser door to the actuator rod.

3 . The thrust reverser of claim 2 , further comprising a translating member connecting the exhaust duct to the actuator rod.

4 . The thrust reverser of claim 3 , further comprising a first support member mounted to the frame and wherein the translating member is configured to translate linearly with respect to the first support member.

5 . The thrust reverser of claim 4 , further comprising a beam link connecting the translating member to the actuator rod.

6 . The thrust reverser of claim 5 , wherein the translating member comprises a first beam configured to translate linearly with respect to the first support member.

7 . The thrust reverser of claim 6 , wherein the translating member comprises a second beam spaced apart from the first beam and wherein the first beam and the second beam are connected by one or more rung members.

8 . The thrust reverser of claim 6 , further comprising a bearing system positioned between the first beam and the first support member.

9 . The thrust reverser of claim 4 , wherein the actuator further comprises a base connected to the frame and wherein the actuator rod is configured to translate linearly with respect to the base.

10 . The thrust reverser of claim 5 , wherein the frame comprises a first side beam and wherein the reverser door is pivotally mounted to the first side beam and the exhaust duct is translationally mounted to the first side beam.

11 . The thrust reverser of claim 10 , wherein the frame comprises a second side beam and wherein the reverser door is pivotally mounted to both the first side beam and the second side beam.

12 . The thrust reverser of claim 11 , further comprising a second actuator having a second actuator rod connected to the reverser door and to the exhaust duct.

13 . The thrust reverser of claim 12 , further comprising a second door link connecting the reverser door to the second actuator rod, a second translating member connecting the exhaust duct to the second actuator rod and a second beam link connecting the second translating member to the second actuator rod.

14 . A thrust reverser for a turbofan engine, comprising:
an upper reverser door pivotally mounted to a frame and a lower reverser door pivotally mounted to the frame; an exhaust duct translationally mounted to the frame; a first actuator having a first actuator rod connected to the upper reverser door, the lower reverser door and the exhaust duct and a second actuator having a second actuator rod connected to the upper reverser door, the lower reverser door and the exhaust duct.

15 . The thrust reverser of claim 14 , further comprising a first upper door link connecting the upper reverser door to the first actuator rod and a second upper door link connecting the upper reverser door to the second actuator rod.

16 . The thrust reverser of claim 15 , further comprising a first lower door link connecting the lower reverser door to the first actuator rod and a second lower door link connecting the lower reverser door to the second actuator rod.

17 . The thrust reverser of claim 16 , further comprising a first translating member connecting the exhaust duct to the first actuator rod and a second translating member connecting the exhaust duct to the second actuator rod.

18 . The thrust reverser of claim 17 , further comprising a first beam link connecting the first translating member to the first actuator rod and a second beam link connecting the second translating member to the second actuator rod.

19 . A gas turbine engine, comprising
a core engine; a nacelle surrounding the core engine; a fan operably connected to the core engine and configured to drive air along a flow path in a bypass duct between the nacelle and an outer casing of the core engine; a mixing section where exhaust from the core engine is mixed with air in the flow path as the air exits the flow path and a thrust reverser downstream of the mixing section, wherein the thrust reverser comprises
an upper reverser door pivotally mounted to a frame and a lower reverser door pivotally mounted to the frame,
an exhaust duct translationally mounted to the frame,
a first actuator having a first actuator rod connected to the upper reverser door, the lower reverser door and the exhaust duct and
a second actuator having a second actuator rod connected to the upper reverser door, the lower reverser door and the exhaust duct.

20 . The gas turbine engine of claim 19 , wherein the thrust reverser further comprises
a first upper door link connecting the upper reverser door to the first actuator rod and a second upper door link connecting the upper reverser door to the second actuator rod, a first lower door link connecting the lower reverser door to the first actuator rod and a second lower door link connecting the lower reverser door to the second actuator rod, a first translating member connecting the exhaust duct to the first actuator rod and a second translating member connecting the exhaust duct to the second actuator rod.

Assignees

• Rohr Inc

Inventors

• Lacko Anthony

Classifications

• F02K1/70 Primary

  using thrust reverser flaps or doors mounted on the fan housing · CPC title

• F02K1/60

  by blocking the rearward discharge by means of pivoted eyelids or clamshells, e.g. target-type reversers · CPC title

• F02K3/06

  with front fan · CPC title

• F02K1/763 Primary

  with actuating systems or actuating devices; Arrangement of actuators for thrust reversers · CPC title

• F05D2220/323

  for aircraft propulsion, e.g. jet engines · CPC title