公开(公告)号：US20160290225A1

公开(公告)日：2016-10-06

申请号：US15061150

申请日：2016-03-04

Applicant: ROLLS-ROYCE plc

Inventor： Christopher ARMIT ,  Emmanuel AURIFEILLE ,  Shahrokh SHAHPAR ,  Paul DENMAN ,  Christopher FORD

IPC: F02C3/04 ,  F23R3/00

CPC classification number: F02C3/04 ,  F23R3/002 ,  F23R3/10 ,  F23R3/26

Abstract: Combustion equipment includes annular combustion chamber having an annular upstream wall structure. Annular outer casing surrounds and is spaced from annular combustion chamber and annular inner casing is within and spaced from annular combustion chamber. Ogee shaped annular cowl is positioned upstream of annular upstream wall structure and a stage of compressor outlet guide vanes is positioned upstream of annular cowl. Pre-diffuser extends in downstream direction from stage of compressor outlet guide vanes, pre-diffuser is positioned upstream of cowl. Stage of compressor outlet guide vanes is connected to outer and inner casing. Outer fairing extends radially inwardly from outer casing such that annular outer casing, outer fairing and pre-diffuser define annular outer cavity and outer fairing is spaced from cowl or inner fairing extends radially outwardly from inner casing such that annular inner casing, inner fairing and pre-diffuser define an annular inner cavity and inner fairing is spaced from cowl.

Abstract translation: 燃烧设备包括具有环形上游壁结构的环形燃烧室。 环形外壳环绕并与环形燃烧室隔开，环形内壳在环形燃烧室内并与其隔开。 O形环形罩被设置在环形上游壁结构的上游，压缩机出口导叶的一级位于环形罩的上游。 预扩散器从压缩机出口导叶的阶段沿下游方向延伸，预扩散器位于整流罩的上游。 压缩机出口导叶的阶段连接到外壳和内壳。 外整流罩从外壳径向向内延伸，使得环形外壳，外整流罩和预扩散器限定环形外腔，并且外整流罩与整流罩间隔开，或内整流罩从内壳径向向外延伸，使得环形内壳，内整流罩和预 -diffuser定义一个环形内腔，内部整流罩与整流罩隔开。

公开(公告)号：US20190120139A1

公开(公告)日：2019-04-25

申请号：US16229093

申请日：2018-12-21

Applicant: ROLLS-ROYCE PLC

Inventor： Christopher ARMIT ,  Emmanuel AURIFEILLE ,  Shahrokh SHAHPAR ,  Paul DENMAN ,  Christopher FORD

IPC: F02C3/04 ,  F23R3/10 ,  F23R3/26 ,  F23R3/00

Abstract: Combustion equipment includes annular combustion chamber having an annular upstream wall structure. Annular outer casing surrounds and is spaced from annular combustion chamber and annular inner casing is within and spaced from annular combustion chamber. Ogee shaped annular cowl is positioned upstream of annular upstream wall structure and a stage of compressor outlet guide vanes is positioned upstream of annular cowl. Pre-diffuser extends in downstream direction from stage of compressor outlet guide vanes, pre-diffuser is positioned upstream of cowl. Stage of compressor outlet guide vanes is connected to outer and inner casing. Outer fairing extends radially inwardly from outer casing such that annular outer casing, outer fairing and pre-diffuser define annular outer cavity and outer fairing is spaced from cowl or inner fairing extends radially outwardly from inner casing such that annular inner casing, inner fairing and pre-diffuser define an annular inner cavity and inner fairing is spaced from cowl.

公开(公告)号：US20150089920A1

公开(公告)日：2015-04-02

申请号：US14490789

申请日：2014-09-19

Applicant: ROLLS-ROYCE PLC

Inventor： Christopher FORD ,  Ashley Gavin BARKER ,  Alastair Duncan WALKER ,  Jonathan CARROTTE

IPC: F23R3/30

CPC classification number: F23R3/30 ,  F23R3/14

Abstract: An airblast fuel injector is provided for a fuel spray nozzle of a gas turbine engine. The injector has an annular air passage for the passage of a swirling air flow therethrough. The swirling air flow is used by the injector to produce an atomised fuel spray. The air passage contains a swirler for producing the swirling air flow, the swirler comprising a circumferential row of vanes which span inner and outer side walls of the air passage. Viewed on a longitudinal section through the injector, the air passage has a bend downstream of the swirler, the bend changing the direction of the air passage. The vanes are configured to introduce a radial component to the air flow exiting the swirler, the radial component guiding the air flow around the bend.

Abstract translation: 为燃气涡轮发动机的燃料喷嘴提供喷气燃料喷射器。 喷射器具有环形空气通道，用于使旋流气流通过其中。 喷射器使用旋转空气流产生雾化燃料喷雾。 空气通道包括用于产生旋流空气流的旋流器，所述旋流器包括跨过空气通道的内侧壁和外侧壁的圆周排的叶片。 在通过喷射器的纵向截面上观察，空气通道在旋流器下游具有弯曲部，弯曲部改变了空气通道的方向。 叶片构造成将径向分量引入离开旋流器的空气流中，径向分量引导围绕弯曲部的气流。