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公开(公告)号：US20060156732A1
公开(公告)日：2006-07-20
申请号：US11220142
申请日：2005-09-06
申请人： Kiran Patwari
发明人： Kiran Patwari
IPC分类号： F02C7/22
CPC分类号： F23D11/38 , F23D2209/30
摘要： In a fuel injector assembly, for an internal combustion engine such as a gas turbine engine, a generally cylindrical air transfer sleeve is, in one embodiment, juxtaposed around a shroud, the sleeve having a peripheral inner recessed cavity, the outer end thereof encompassing a plurality of air inlets and the inner end thereof having a plurality of air openings connecting the cavity with tertiary air for a positive air wash, or in another embodiment, is located intermediate a fuel body and the shroud while having such inner radial dimensions so as to maintain first and second fuel/air venting gaps, with the transfer sleeve also having a peripheral outer recessed cavity wherein the inner end thereof encompasses the air inlets, with an outer end thereof being provided with a plurality of air openings, these openings connecting the recessed cavity with the first fuel/air gap downstream of a restrictor.
摘要翻译： 在燃料喷射器组件中，对于诸如燃气涡轮发动机的内燃机，在一个实施例中，大致圆柱形的空气传递套筒围绕护罩并列，套筒具有周边内凹腔，其外端包围 多个空气入口及其内端具有多个空气开口，用于将空腔与三次空气连接用于正空气洗涤，或者在另一个实施例中，位于燃料体和护罩的中间，同时具有这样的内部径向尺寸，以便 保持第一和第二燃料/空气排放间隙，转移套筒还具有周边的外凹腔，其内端包围空气入口，其外端设置有多个空气开口，这些开口连接凹入 在限流器下游具有第一燃料/空气间隙的空腔。
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公开(公告)号：US5307635A
公开(公告)日：1994-05-03
申请号：US968627
申请日：1992-10-29
申请人： Charles Graves , Todd Neill , Raman Ras , Kiran Patwari , Robert T. Mains , Curtis H. Scheuerman
发明人： Charles Graves , Todd Neill , Raman Ras , Kiran Patwari , Robert T. Mains , Curtis H. Scheuerman
CPC分类号： F23R3/36 , F23D11/38 , F23D2211/00
摘要： A fuel nozzle for the combustor of gas turbine engines includes evacuated radial and axial bellows concentrically mounted to the fuel passages to prevent coking of the fuel passages and maintain the structural integrity of the integral parts and particularly the weld joints and the method of construction is disclosed.
摘要翻译： 用于燃气涡轮发动机的燃烧器的燃料喷嘴包括同心地安装到燃料通道上的抽真空的径向和轴向波纹管，以防止燃料通道焦化并保持整体部件，特别是焊接接头的结构完整性，并且公开了结构方法 。
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公开(公告)号：US07140560B2
公开(公告)日：2006-11-28
申请号：US10948935
申请日：2004-09-24
CPC分类号： F23R3/14 , F23R3/28 , Y02T50/675
摘要： A deflector at the downstream end of a fuel tube deflects incoming fuel into an annular fuel channel in a fuel swirler of an injector. The deflector prevents direct impact of the cooler fuel on the exposed walls of the swirler body. The deflector can be formed by a tab or other integral portion of the heatshield, or as a separate piece fixed to the heatshield or swirler body. The deflector minimizes disruption of flow through any flow slots that are covered by the deflector, and may have i) a relatively small circumferential extent, such that the deflector covers only a few flow slots, ii) flow openings or slots that allow a portion of the fuel to flow inwardly of the deflector into the otherwise covered flow slot(s), or iii) a space or gap between the side(s) of the deflector and the inner walls of the annular channel.
摘要翻译： 在燃料管的下游端处的偏转器将进入的燃料偏转到喷射器的燃料旋流器中的环形燃料通道中。 偏转器防止冷却器燃料在旋流器主体的暴露的壁上的直接冲击。 偏转器可以由遮光板的突片或其它整体部分形成，或者作为固定到挡风玻璃或旋流器主体的分离件形成。 偏转器最小化通过由偏转器覆盖的任何流动槽的流动的破裂，并且可以具有相对小的圆周范围，使得偏转器仅覆盖几个流动槽，ii）流动开口或狭槽， 所述燃料从所述偏转器的内部流入所述另外覆盖的流动槽中，或iii）所述偏转器的侧面和所述环形通道的内壁之间的空间或间隙。
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公开(公告)号：US07430851B2
公开(公告)日：2008-10-07
申请号：US11220142
申请日：2005-09-06
申请人： Kiran Patwari
发明人： Kiran Patwari
IPC分类号： F02C7/22
CPC分类号： F23D11/38 , F23D2209/30
摘要： In a fuel injector assembly, for an internal combustion engine such as a gas turbine engine, a generally cylindrical air transfer sleeve is, in one embodiment, juxtaposed around a shroud, the sleeve having a peripheral inner recessed cavity, the outer end thereof encompassing a plurality of air inlets and the inner end thereof having a plurality of air openings connecting the cavity with tertiary air for a positive air wash, or in another embodiment, is located intermediate a fuel body and the shroud while having such inner radial dimensions so as to maintain first and second fuel/air venting gaps, with the transfer sleeve also having a peripheral outer recessed cavity wherein the inner end thereof encompasses the air inlets, with an outer end thereof being provided with a plurality of air openings, these openings connecting the recessed cavity with the first fuel/air gap downstream of a restrictor.
摘要翻译： 在燃料喷射器组件中，对于诸如燃气涡轮发动机的内燃机，在一个实施例中，大致圆柱形的空气传递套筒围绕护罩并列，套筒具有周边内凹腔，其外端包围 多个空气入口及其内端具有多个空气开口，用于将空腔与三次空气连接用于正空气洗涤，或者在另一个实施例中，位于燃料体和护罩的中间，同时具有这样的内部径向尺寸，以便 保持第一和第二燃料/空气排放间隙，转移套筒还具有周边的外凹腔，其内端包围空气入口，其外端设置有多个空气开口，这些开口连接凹入 在限流器下游具有第一燃料/空气间隙的空腔。
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公开(公告)号：US06895755B2
公开(公告)日：2005-05-24
申请号：US10366304
申请日：2003-02-13
CPC分类号： F23D11/107 , F23R3/28
摘要： A fuel injector for a gas turbine engine has an inlet fitting, a fuel nozzle, and a housing stem with a pair of fuel conduits fluidly interconnecting the nozzle and fitting. The fuel nozzle includes an annular secondary fuel passageway directing fuel from one fuel conduit to an annular discharge orifice at a discharge end of the nozzle. The secondary fuel passageway is defined between an outer, annular fuel conduit portion and a primary adapter. The primary adapter has an outer surface with a distinct, radially-outwardly-projecting annular shoulder to restrict flow through the secondary passageway and provide substantially uniform distribution of flow through the passageway downstream of the shoulder, for improved combustion and flame stability.
摘要翻译： 用于燃气涡轮发动机的燃料喷射器具有入口配件，燃料喷嘴和具有流体地互连喷嘴和配件的一对燃料管道的壳体杆。 燃料喷嘴包括将燃料从一个燃料管道引导到在喷嘴的排放端处的环形排放孔的环形二次燃料通道。 二次燃料通道限定在外部环形燃料导管部分和主适配器之间。 主适配器具有外表面，其具有不同的径向向外突出的环形肩部，以限制流过次级通道的流动并且提供通过肩部下游的通道的流体的基本上均匀的分布，以改善燃烧和火焰稳定性。
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公开(公告)号：US20050067506A1
公开(公告)日：2005-03-31
申请号：US10948935
申请日：2004-09-24
申请人： Robert Stotts , Brian Drake , Curtis Scheuerman , Kiran Patwari
发明人： Robert Stotts , Brian Drake , Curtis Scheuerman , Kiran Patwari
CPC分类号： F23R3/14 , F23R3/28 , Y02T50/675
摘要： A deflector at the downstream end of a fuel tube deflects incoming fuel into an annular fuel channel in a fuel swirler of an injector. The deflector prevents direct impact of the cooler fuel on the exposed walls of the swirler body. The deflector can be formed by a tab or other integral portion of the heatshield, or as a separate piece fixed to the heatshield or swirler body. The deflector minimizes disruption of flow through any flow slots that are covered by the deflector, and may have i) a relatively small circumferential extent, such that the deflector covers only a few flow slots, ii) flow openings or slots that allow a portion of the fuel to flow inwardly of the deflector into the otherwise covered flow slot(s), or iii) a space or gap between the side(s) of the deflector and the inner walls of the annular channel.
摘要翻译： 在燃料管的下游端处的偏转器将进入的燃料偏转到喷射器的燃料旋流器中的环形燃料通道中。 偏转器防止冷却器燃料在旋流器主体的暴露的壁上的直接冲击。 偏转器可以由遮光板的突片或其它整体部分形成，或者作为固定到挡风玻璃或旋流器主体的分离件形成。 偏转器最小化通过由偏转器覆盖的任何流动槽的流动的破裂，并且可以具有相对小的圆周范围，使得偏转器仅覆盖几个流动槽，ii）流动开口或狭槽， 所述燃料从所述偏转器的内部流入所述另外覆盖的流动槽中，或iii）所述偏转器的侧面和所述环形通道的内壁之间的空间或间隙。
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公开(公告)号：US5761907A
公开(公告)日：1998-06-09
申请号：US720252
申请日：1996-09-26
申请人： Robert R. Pelletier , Kiran Patwari
发明人： Robert R. Pelletier , Kiran Patwari
CPC分类号： F23D11/107 , F23R3/14 , F23R3/28 , F23D2211/00
摘要： An airblast fuel nozzle has an injector head with an outer air flow through an outer air flow swirler, an intermediate fuel flow through an intermediate fuel swirler, and an inner air flow through an inner air swirler. A heatshield assembly protects the intermediate fuel swirler from hot air passing through the inner air swirler. The heatshield assembly includes an inner heatshield extending from the inlet end of the fuel swirler to the outlet end of the fuel swirler, and an intermediate heatshield disposed between the inner heatshield and the fuel swirler. According to one embodiment, the inner heatshield is connected, such as by brazing, at its downstream end to the intermediate heatshield, and at its upstream end to the fuel swirler. The upstream connection to the fuel swirler is preferably at or downstream from the midpoint of the fuel swirler. An air gap is provided between the inner heatshield and the intermediate heatshield, and between the intermediate heatshield and the fuel swirler. According to a second embodiment, the intermediate heatshield is connected at its downstream end to the downstream end of the fuel swirler, and at its upstream end to the inner heatshield, at a location at or downstream from the midpoint of the inner heatshield. An air gap is also provided between the inner heatshield and the intermediate heatshield, and between the intermediate heatshield and the fuel swirler. The intermediate heatshield allows axial and radial expansion of the inner heatshield without affecting the fluid flow through the fuel passage or the inner air passage, has reduced stress concentration at the connection point, and has increased cycle life without fatigue failure.
摘要翻译： 喷气燃料喷嘴具有喷射头，其具有穿过外部空气流旋流器的外部气流，通过中间燃料旋流器的中间燃料流和通过内部空气旋流器的内部空气流。 挡风玻璃组件保护中间燃料旋流器免受通过内部空气旋流器的热空气。 挡风玻璃组件包括从燃料旋流器的入口端延伸到燃料旋流器的出口端的内部遮光罩，以及设置在内部遮光罩和燃料旋流器之间的中间挡风玻璃。 根据一个实施例，内部遮光罩例如通过钎焊在其下游端连接到中间挡风玻璃，并且在其上游端连接到燃料旋流器。 与燃料旋流器的上游连接优选在燃料旋流器的中点处或下游。 在内部遮光罩和中间挡风板之间以及中间挡风玻璃和燃料旋流器之间设置气隙。 根据第二实施例，中间遮光罩在其下游端连接到燃料旋流器的下游端，并且在其上部端连接到内部遮光罩，在内部遮光罩的中点处或下游的位置。 在内部遮光罩和中间挡风板之间以及中间挡风玻璃和燃料旋流器之间还设有气隙。 中间挡风玻璃允许内部遮光罩的轴向和径向膨胀，而不影响通过燃料通道或内部空气通道的流体流动，在连接点处具有减小的应力集中，并且具有增加的循环寿命而没有疲劳失效。
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