公开(公告)号：US20200318493A1

公开(公告)日：2020-10-08

申请号：US16828102

申请日：2020-03-24

Applicant: ROLLS-ROYCE plc

Inventor： Michael BOOTH ,  Andrew SMITH ,  Ajay PATEL

IPC: F01D25/18 ,  F01M1/10 ,  F01M1/20

Abstract: An oil pipe assembly for a gas turbine engine. The oil pipe assembly includes a first pipe that defines a first fluid passage between an oil supply and a bearing chamber, and a second pipe that houses the first pipe and defines a second fluid passage between the first pipe and the second pipe that is supplied with cooling air. The oil pipe assembly also includes a restrictor that extends from the second pipe and restricts the passage of fluid from the second fluid passage before it flows into a breather. Pressure and temperature sensors) are located adjacent the restrictor to detect and measure changes in air pressure and air temperature adjacent the restrictor from which a controller identifies whether a leak has occurred in the first pipe or the second pipe. A method for detecting a leak in the oil pipe assembly, and a gas turbine are also described.

公开(公告)号：US20200291867A1

公开(公告)日：2020-09-17

申请号：US16801251

申请日：2020-02-26

Applicant: ROLLS-ROYCE plc

Inventor： Steven P. CULWICK ,  Michael BOOTH

IPC: F02C9/18 ,  F02C7/18 ,  F02C7/22

Abstract: A gas turbine engine comprising an engine core comprising a compressor; a compressor bleed valve in fluid communication with the compressor and configured to release bleed air from the compressor; and a combustor comprising a fuel manifold configured to provide fuel to the combustor; wherein the fuel manifold is in thermal contact with a cooling conduit; and the gas turbine engine further comprises a fluid conduit to supply bleed air from the compressor bleed valve to the cooling conduit.

公开(公告)号：US20200284202A1

公开(公告)日：2020-09-10

申请号：US16800000

申请日：2020-02-25

Applicant: ROLLS-ROYCE plc

Inventor： Michael BOOTH ,  Steven P. CULWICK

IPC: F02C7/36

Abstract: A shaft apparatus for a gas turbine engine comprising: a first shaft portion; a second shaft portion; and a ratchet mechanism configured to permit the first shaft portion to rotate with respect to the second shaft portion in a first direction, and to prevent the first shaft portion from rotating with respect to the second shaft portion in a second direction opposite to the first direction. A gas turbine engines comprising the shaft apparatus and methods of operating a gas turbine engine are also disclosed.