公开(公告)号：US11993387B2

公开(公告)日：2024-05-28

申请号：US17940046

申请日：2022-09-08

Applicant: ROLLS-ROYCE plc

Inventor： Jamie W Gallagher ,  Daniel Blacker ,  Hugh J Blakemore ,  Adrian M Manser ,  Jonathan V Watson ,  Alexander L Fry ,  Robert A Barker ,  James Thorp ,  Marie-Océane Parent

IPC: B64D27/40 ,  F02C7/20 ,  F01D25/28 ,  F02K3/06

CPC classification number: B64D27/40 ,  F02C7/20 ,  B64D27/402 ,  B64D27/404 ,  B64D27/406 ,  F01D25/28 ,  F02K3/06 ,  F05D2220/323 ,  F05D2240/90 ,  F05D2260/20

Abstract: A gas turbine engine comprises, in axial flow sequence, a fan assembly, a compressor module, a turbine module, and an exhaust module. The gas turbine engine comprises first and second engine mount planes. The first and second engine mount planes are configured to support gas turbine engine in machine body. The gas turbine engine has axial length L, with axial length extending from inlet face of engine to exhaust face of engine. The first engine mount plane is positioned axially along gas turbine engine at first engine mount plane position, with first engine mount plane position within a range of between 0.24*L to 0.32*L from the inlet face of the engine. The second engine mount plane is positioned axially along gas turbine engine at second engine mount plane position, with second engine mount plane position within a range of between 0.73*L to 0.79*L from the inlet face of the engine.

公开(公告)号：US10662896B2

公开(公告)日：2020-05-26

申请号：US15840751

申请日：2017-12-13

Applicant: ROLLS-ROYCE plc

Inventor： Jonathan V Watson ,  Jack F Colebrooke

IPC: F02K1/12 ,  F02K1/15

Abstract: A nozzle for a gas turbine engine. An array of convergent petals hingedly coupled to a nozzle exit of fixed diameter. An array of divergent petals, each divergent petal hingedly coupled to one of the array of convergent petals. A cam surface associated with the array of convergent petals. A pivot point coupled to the array of divergent petals by a first linkage and to a fixed point by a second linkage. A cam follower coupled to the second linkage by a third linkage, the cam follower arranged to abut and travel in contact with the cam surface. An actuator coupled to the cam follower and arranged to translate the cam follower along the cam surface to move the convergent and divergent petals.