公开(公告)号：US20240175408A1

公开(公告)日：2024-05-30

申请号：US18234177

申请日：2023-08-15

Applicant: ROLLS-ROYCE plc

Inventor： Jack F COLEBROOKE

IPC: F02K1/12 ,  F02K1/00 ,  F02K1/15 ,  F02K1/80

CPC classification number: F02K1/1207 ,  F02K1/002 ,  F02K1/15 ,  F02K1/80 ,  F05D2220/323 ,  F05D2250/231 ,  F05D2250/311

Abstract: An exhaust nozzle for a gas turbine engine includes: an exhaust duct configured to receive an exhaust flow of gas from a combustor of the engine; a first flap rotatably coupled to the exhaust duct for rotation about a first axis; a first actuator configured to actuate the first flap about the first axis between a first inner and a first outer position; a second flap rotatably coupled to the exhaust duct for rotation about a second axis; and a second actuator configured to actuate the second flap about the second axis between a second inner and a second outer position. The first and second flaps at least in part define a passageway configured to convey the exhaust flow of gas to an exterior of the gas turbine engine. The first and second axes of rotation are coaxial. Also provides is a method of operating an exhaust nozzle.

公开(公告)号：US20200025129A1

公开(公告)日：2020-01-23

申请号：US16269192

申请日：2019-02-06

Applicant: ROLLS-ROYCE plc

Inventor： Jack F COLEBROOKE

IPC: F02K1/12 ,  F02K1/82

Abstract: A flap for a variable area exhaust nozzle of a gas turbine engine, having a support structure and a gas shield having a plurality of gas shield segments connected to the support structure and adjacently arranged along a longitudinal direction of the flap corresponding to flow through the nozzle. Each of the gas shield segments has a flowpath section arranged to cooperate with a corresponding flowpath section of an adjacent gas shield segment to define a flowpath surface of the gas shield to bound flow through the nozzle. The gas shield segments are configured to permit the respective flowpath section to move longitudinally relative the support structure in response to thermal expansion of the gas shield.

公开(公告)号：US20190226424A1

公开(公告)日：2019-07-25

申请号：US16247890

申请日：2019-01-15

Applicant: ROLLS-ROYCE plc

Inventor： Jack F COLEBROOKE ,  David STEELE

IPC: F02K1/12 ,  F02K1/82

Abstract: A flap for a variable area exhaust nozzle of a gas turbine engine. The flap includes a support structure and a gas shield retained thereto. The support structure and the gas shield include a pair of grooves extending in a longitudinal direction of the flap and a pair of corresponding tongues that engage the pair of grooves so as to retain the gas shield to the support structure and to allow movement of the gas shield by thermal expansion along the support structure in the longitudinal direction.