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公开(公告)号：US10208664B2
公开(公告)日：2019-02-19
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
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.
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公开(公告)号：US09562691B2
公开(公告)日：2017-02-07
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
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 atomized 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。
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公开(公告)号：US11175042B2
公开(公告)日：2021-11-16
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
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.
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