公开(公告)号：US20170328278A1

公开(公告)日：2017-11-16

申请号：US15493407

申请日：2017-04-21

Applicant: ROLLS-ROYCE plc

Inventor： Zahid M HUSSAIN ,  Oliver TAYLOR-TIBBOTT

IPC: F02C6/08

CPC classification number: F02C6/08 ,  F05D2260/606

Abstract: A gas turbine engine comprises a bleed duct for receiving bleed flow and a plurality of valve members pivotable relative to the bleed duct for variably controlling fluid flow along the bleed duct. The gas turbine engine also comprises an actuation mechanism for pivoting the valve members relative to the bleed duct, wherein the actuation mechanism is configured such that pivoting of the valve members is staggered.

公开(公告)号：US20200232338A1

公开(公告)日：2020-07-23

申请号：US16670241

申请日：2019-10-31

Applicant: ROLLS-ROYCE plc

Inventor： Zahid M HUSSAIN ,  Timothy TRAMONTIN

IPC: F01D17/16 ,  F01D17/26

Abstract: A modular fluid-driven linear actuator comprising an actuator support comprising a first part and a second part configured for relative linear movement, wherein the actuator support is configured to hold a plurality of removable actuator modules in parallel and in respective module-receiving locations defined between the first part and the second part. At least one actuator module is removably installed in the actuator support and held in a respective module-receiving location of the plurality. A first fluid manifold is configured to provide a drive fluid to each actuator module when received in a respective module-receiving location, to act on a piston of the actuator module having a respective piston area to drive the piston in a first direction. A total piston area of the modular actuator is variable by installing and uninstalling actuator modules in the actuator support.

公开(公告)号：US20170328280A1

公开(公告)日：2017-11-16

申请号：US15494665

申请日：2017-04-24

Applicant: ROLLS-ROYCE plc

Inventor： Zahid M HUSSAIN ,  Christopher T J SHEAF ,  Mark J WILSON ,  David G MACMANUS

IPC: F02C7/141 ,  F28F3/02 ,  F28F27/02 ,  F28F13/12

CPC classification number: F02C7/141 ,  F02C7/185 ,  F02K3/115 ,  F05D2260/22141 ,  F28F3/02 ,  F28F13/12 ,  F28F27/02 ,  F28F2250/06 ,  Y02T50/671 ,  Y02T50/675

Abstract: A heat sink for location in a fluid flow, including a heat sink base and a plurality of heat dissipating elements, such as elongate fins, extending from the surface of the heat sink base. In certain arrangements the heat sink is provided with a diversion flow passageway for diverting a fraction of fluid flow away from the heat dissipating elements. In other arrangements there may be two arrays of elongate fins laterally offset. In yet a further arrangement the heat sink may be configured to promote the generation of at least one vortex.

公开(公告)号：US20160305368A1

公开(公告)日：2016-10-20

申请号：US15079797

申请日：2016-03-24

Applicant: ROLLS-ROYCE plc

Inventor： Zahid M HUSSAIN

IPC: F02K1/10 ,  F02K3/08 ,  F02K1/18

CPC classification number: F02K1/18 ,  F02K1/06 ,  F02K1/08 ,  F05D2250/323 ,  F05D2250/324 ,  F05D2300/505

Abstract: A convergent-divergent nozzle arranged to convey fluid from an upstream zone to a downstream zone via a throat aperture, wherein the nozzle includes an assembly movable to vary the size of the throat aperture of the nozzle, thereby regulating the flow of fluid to the downstream zone.

Abstract translation: 收敛发散喷嘴，布置成经由喉部孔口将流体从上游区域输送到下游区域，其中喷嘴包括可移动以改变喷嘴的喉部孔径的尺寸的组件，从而调节流体到下游的流动 区。