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1. 发明授权

US5251447A Air fuel mixer for gas turbine combustor 失效
标题翻译：用于燃气轮机燃烧器的空气燃料混合器
公开(公告)号：US5251447A
公开(公告)日：1993-10-12
申请号：US955379
申请日：1992-10-01
申请人： Narendra D. Joshi , Edward E. Ekstedt , Michael J. Epstein
发明人： Narendra D. Joshi , Edward E. Ekstedt , Michael J. Epstein
IPC分类号： F23R3/14 , F23R3/32
CPC分类号： F23R3/14 , F05B2250/411
摘要： An air fuel mixer is disclosed having a mixing duct, a shroud surrounding the upstream end of the mixing duct having contained therein a fuel manifold in flow communication with a fuel supply and control means, a set of inner and outer counter-rotating swirlers adjacent the upstream end of the mixing duct, hollow vanes in at least the outer swirler having passages therethrough in fluid communication with the fuel manifold to inject fuel into the mixing duct, and a hub separating the inner and outer swirlers to allow independent rotation thereof, wherein high pressure air from a compressor is injected into the mixing duct through the swirlers to form an intense shear region and fuel is injected into the mixing duct from the swirler vanes so that the high pressure air and the fuel is uniformly mixed therein so as to produce minimal formation of pollutants when the fuel/air mixture is exhausted out the downstream end of the mixing duct into the combustor and ignited. Further, the air fuel mixer of the present invention may include passages in the wall of the mixing duct in fluid communication with the fuel manifold, a centerbody in the mixing duct having a passage therethrough to admit air into the downstream end of the mixing duct, and tubes extending from the passages in the swirler vanes and/or mixing duct wall to inject liquid fuel downstream of the swirlers.
摘要翻译：公开了一种具有混合管道的空气燃料混合器，围绕混合管道的上游端的护罩，其中容纳有与燃料供应和控制装置流体连通的燃料歧管，与燃料供应和控制装置相邻的一组内部和外部反向旋转旋流器至少外旋流器的中空叶片具有与燃料歧管流体连通的通道，以将燃料喷射到混合管道中;以及毂，分离内旋流器和外旋流器以允许其独立旋转，其中高来自压缩机的压力空气通过旋流器注入混合管道中以形成强烈的剪切区域，并且燃料从旋流器叶片注入到混合管道中，使得高压空气和燃料均匀地混合在其中，从而产生最小的当燃料/空气混合物从混合管道的下游端排出到燃烧器中并点燃时，形成污染物。此外，本发明的空气燃料混合器可以包括在与燃料歧管流体连通的混合管道的壁中的通道，混合管道中的中心体具有穿过其中的通道，以将空气吸入混合管道的下游端，以及从旋流器叶片和/或混合管道壁中的通道延伸的管以在旋流器下游注入液体燃料。

2. 发明授权

US5511375A Dual fuel mixer for gas turbine combustor 失效
标题翻译：用于燃气轮机燃烧器的双燃料混合器
公开(公告)号：US5511375A
公开(公告)日：1996-04-30
申请号：US304341
申请日：1994-09-12
申请人： Narendra D. Joshi , Edward E. Ekstedt
发明人： Narendra D. Joshi , Edward E. Ekstedt
IPC分类号： F01D9/06 , F23C7/00 , F23D17/00 , F23R3/14 , F23R3/28 , F23R3/36 , F02C3/20
CPC分类号： F23D17/002 , F01D9/065 , F23C7/004 , F23R3/14 , F23R3/286 , F23R3/36 , F23C2900/07001
摘要： A dual fuel mixer is disclosed having a mixing duct, a shroud surrounding the upstream end of the mixing duct having contained therein a gas fuel manifold and a liquid fuel manifold in flow communication with a gas fuel supply and a liquid fuel supply, respectively, and control means, a set of inner and outer annular counter-rotating swirlers adjacent the upstream end of the mixing duct, where at least the outer annular swirlers include hollow vanes with internal cavities and fuel passages, all of which are in fluid communication with the gas and liquid fuel manifolds to inject gas and liquid fuel into the air stream, and a hub separating the inner and outer annular swirlers to allow independent rotation thereof wherein high pressure air from a compressor is injected into the mixing duct through the swirlers to form an intense shear region and gas and/or liquid fuel is injected into the air stream from the outer annular swirler vanes so that the high pressure air and the fuel is uniformly mixed therein so as to produce minimal formation of pollutants when the fuel/air mixture is exhausted out the downstream end of the mixing duct into the combustor and ignited.
摘要翻译：公开了一种双燃料混合器，其具有混合管道，围绕混合管道的上游端的护罩分别包含气体燃料歧管和与气体燃料供应源和液体燃料源流动连通的液体燃料歧管，以及控制装置，一组邻近混合管道的上游端的内外环形反向旋转旋流器，其中至少外环形旋流器包括具有内部空腔和燃料通道的中空叶片，所有中空叶片都与气体流体连通以及用于将气体和液体燃料注入到空气流中的液体燃料歧管，以及将内部和外部环形旋流器分离以允许其独立旋转的毂，其中来自压缩机的高压空气通过旋流器注入到混合管道中以形成强烈的剪切区域和气体和/或液体燃料从外部环形旋流器叶片注入到空气流中，使得高压空气和燃料是单一的混合在其中，以便当燃料/空气混合物从混合管道的下游端排出到燃烧器中并点燃时，产生最小的污染物形成。

3. 发明授权

US5323604A Triple annular combustor for gas turbine engine 失效
标题翻译：用于燃气轮机的三重环形燃烧器
公开(公告)号：US5323604A
公开(公告)日：1994-06-28
申请号：US976752
申请日：1992-11-16
申请人： Edward E. Ekstedt , Narendra D. Joshi , Adrian M. Ablett , Timothy R. Gresla , John M. Koshoffer , William F. Burke
发明人： Edward E. Ekstedt , Narendra D. Joshi , Adrian M. Ablett , Timothy R. Gresla , John M. Koshoffer , William F. Burke
IPC分类号： F23R3/34 , F02C7/228
CPC分类号： F23R3/34 , F23R3/002 , F23R2900/03043 , Y02T50/675
摘要： In accordance with one aspect of the present invention, a combustor is disclosed having three separate domes, each dome having disposed therein a plurality of circumferentially spaced mixers for uniformly mixing air and fuel. The combustor utilizes a high percentage of the total available combustion air at the dome area in order to maintain a lean mixture of air and fuel during all levels of engine output. Besides providing an unobstructed area in the diffuser dump region upstream of the mixers for the combustion air, sealing means is included to prevent cooling air from entering the combustion chamber until downstream of the primary combustion zone. Heat shields having radial centerbodies are also included between each dome to isolate each primary combustion zone.
摘要翻译：根据本发明的一个方面，公开了一种具有三个独立圆顶的燃烧器，每个圆顶上设置有多个周向间隔开的混合器，用于均匀混合空气和燃料。燃烧器在圆顶区域使用高百分比的总可用燃烧空气，以便在所有级别的发动机输出期间保持空气和燃料的贫混合。除了在用于燃烧空气的混合器上游的扩散器倾卸区域内提供无障碍区域之外，还包括密封装置以防止冷却空气进入燃烧室直到主燃烧区域的下游。每个圆顶之间还包括具有径向中心体的隔热隔离每个主燃烧区。

4. 发明授权

US5165241A Air fuel mixer for gas turbine combustor 失效
标题翻译：用于气体涡轮搅拌机的AIR FUEL MIXER
公开(公告)号：US5165241A
公开(公告)日：1992-11-24
申请号：US660315
申请日：1991-02-22
申请人： Narendra D. Joshi , Edward E. Ekstedt
发明人： Narendra D. Joshi , Edward E. Ekstedt
IPC分类号： F23R3/12 , F23R3/14 , F23R3/28 , F23R3/30
CPC分类号： F23R3/14 , F23R3/286 , Y02T50/675
摘要： A mixer having a mixing duct, a set of inner and outer counter-rotating swirlers at the upstream end of the mixing duct, and a fuel nozzle located axially along and forming a center-body of the mixing duct is provided, wherein high pressure air from a compressor is injected into the mixing duct through the swirlers to form an intense shear region and fuel is injected into the mixing duct from the fuel nozzle so that the high pressure air and the fuel is uniformly mixed therein so as to produce minimal formation of pollutants when the fuel/air mixture is exhausted out the downstream end of said mixing duct into the combustor and ignited.

5. 发明授权

US5613363A Air fuel mixer for gas turbine combustor 失效
标题翻译：用于燃气轮机燃烧器的空气燃料混合器
公开(公告)号：US5613363A
公开(公告)日：1997-03-25
申请号：US312374
申请日：1994-09-26
申请人： Narendra D. Joshi , Michael J. Epstein , Michael E. Ewbank
发明人： Narendra D. Joshi , Michael J. Epstein , Michael E. Ewbank
IPC分类号： F23C7/00 , F23D11/10 , F23R3/14 , F23R3/28 , F02C3/20
CPC分类号： F23C7/004 , F23D11/107 , F23R3/14 , F23R3/286 , Y02T50/675
摘要： An air fuel mixer having a mixing duct, a set of inner and outer counter-rotating swirlers at the upstream end of the mixing duct, and means for injecting fuel into the mixing duct is provided, wherein high pressure air from a compressor is injected into the mixing duct through the swirlers to form an intense shear region and fuel is injected into the mixing duct from the fuel nozzle by means of a plurality of fuel spokes so that the high pressure air and the fuel is uniformly mixed therein so as to produce minimal formation of pollutants when the fuel/air mixture is exhausted out the downstream end of said mixing duct into the combustor and ignited.
摘要翻译：一种空气燃料混合器，其具有混合管道，一组在混合管道的上游端的内部和外部反向旋转旋流器，以及用于将燃料喷射到混合管道中的装置，其中将来自压缩机的高压空气注入通过旋流器形成强烈剪切区域的混合管道和燃料通过多个燃料辐条从燃料喷嘴喷射到混合管道中，使得高压空气和燃料均匀地混合在一起，从而产生最小的当燃料/空气混合物从所述混合管道的下游端排出到燃烧器中并点燃时，形成污染物。

6. 发明授权

US5590529A Air fuel mixer for gas turbine combustor 失效
标题翻译：燃气轮机燃烧器用空气燃料混合器
公开(公告)号：US5590529A
公开(公告)日：1997-01-07
申请号：US312373
申请日：1994-09-26
申请人： Narendra D. Joshi , Michael J. Epstein , Michael E. Ewbank
发明人： Narendra D. Joshi , Michael J. Epstein , Michael E. Ewbank
IPC分类号： F23D14/02 , F23R3/14 , F23R3/38 , F02C1/00
CPC分类号： F23R3/14 , F23D14/02 , F23R3/38 , Y02T50/675
摘要： An air fuel mixer having a mixing duct, a set of inner and outer counter-rotating swirlers at the upstream end of the mixing duct, and means for injecting fuel into the mixing duct is provided, wherein high pressure air from a compressor is injected into the mixing duct through the swirlers to form an intense shear region and fuel is injected into the mixing duct from the fuel nozzle by means of a plurality of non-linear fuel spokes so that the high pressure air and the fuel is uniformly mixed therein so as to produce minimal formation of pollutants when the fuel/air mixture is exhausted out the downstream end of said mixing duct into the combustor and ignited.
摘要翻译：一种空气燃料混合器，其具有混合管道，一组在混合管道的上游端的内部和外部反向旋转旋流器，以及用于将燃料喷射到混合管道中的装置，其中将来自压缩机的高压空气注入通过旋流器形成强烈剪切区域的混合管道和燃料通过多个非线性燃料辐条从燃料喷嘴喷射到混合管道中，使得高压空气和燃料均匀地混合在一起，以便当燃料/空气混合物从所述混合管道的下游端排出到燃烧器中并点燃时，产生最小的污染物形成。

7. 发明授权

US5638682A Air fuel mixer for gas turbine combustor having slots at downstream end of mixing duct 失效
标题翻译：用于燃气轮机燃烧器的空气燃料混合器，其在混合管道的下游端具有槽
公开(公告)号：US5638682A
公开(公告)日：1997-06-17
申请号：US311639
申请日：1994-09-23
申请人： Narendra D. Joshi , Michael J. Epstein
发明人： Narendra D. Joshi , Michael J. Epstein
IPC分类号： F23D14/02 , F23M99/00 , F23R3/12 , F23R3/32
CPC分类号： F23D14/02 , F23M20/005 , F23R3/12 , F23C2900/07001 , F23D2209/10 , F23D2900/14021
摘要： An air fuel mixer is disclosed having a mixing duct, a set of inner and outer counter-rotating swirlers adjacent the upstream end of the mixing duct, and a hub separating the inner and outer swirlers to allow independent rotation thereof, wherein high pressure air from a compressor is injected into the mixing duct through the swirlers to form an intense shear region and fuel is injected into the mixing duct so that the high pressure air and the fuel is uniformly mixed therein so as to produce minimal formation of pollutants when the fuel/air mixture is exhausted out the downstream end of the mixing duct into the combustor and ignited. In addition, the mixing duct of the mixer includes slots, preferably with flares associated therewith, at its downstream end which modify the shape and direction of mixing eddies emanating therefrom.
摘要翻译：公开了一种空气燃料混合器，其具有混合管道，邻近混合管道的上游端的一组内部和外部反向旋转旋流器，以及分离内部和外部旋流器以允许其独立旋转的毂，其中来自通过旋流器将压缩机注入到混合管道中以形成强烈的剪切区域，并且将燃料注入到混合管道中，使得高压空气和燃料均匀地混合在一起，以便当燃料/ 空气混合物从混合管道的下游端排出到燃烧器中并点燃。此外，混合器的混合管道在其下游端包括槽，优选地具有与其相关的耀斑，其改变了从其发出的混合涡流的形状和方向。

8. 发明授权

US06460340B1 Fuel nozzle for gas turbine engine and method of assembling 有权
标题翻译：燃气轮机用燃油喷嘴及组装方法
公开(公告)号：US06460340B1
公开(公告)日：2002-10-08
申请号：US09466557
申请日：1999-12-17
申请人： Claude H. Chauvette , Narendra D. Joshi
发明人： Claude H. Chauvette , Narendra D. Joshi
IPC分类号： F02C100
CPC分类号： F23R3/283 , B05B15/65 , F23D11/38 , F23D14/48 , Y10T29/49348
摘要： A fuel nozzle for a gas turbine engine has a spray tip and a housing coaxially disposed around the spray tip. Bi-directional axial movement of the spray tip relative to the housing is constrained by first and second rows of tabs formed on one of the housing and the spray tip and a third row of tabs formed on the other one of the housing and the spray tip. The third row of tabs is disposed between the first and second rows to constrain spray tip motion in either axial direction.
摘要翻译：用于燃气涡轮发动机的燃料喷嘴具有喷射尖端和围绕喷嘴同轴设置的壳体。喷嘴相对于壳体的双向轴向运动由形成在壳体和喷嘴顶端之一上的第一和第二排突片所限制，第三排突片形成在壳体和喷嘴的另一个上。第三排突片设置在第一和第二行之间以限制沿任一轴向的喷嘴端运动。

9. 发明授权

US6141967A Air fuel mixer for gas turbine combustor 失效
公开(公告)号：US6141967A
公开(公告)日：2000-11-07
申请号：US5343
申请日：1998-01-09
申请人： Paul R. Angel , James M. Caldwell , Narendra D. Joshi , Steven Marakovits , Kelley A. Foresman , Steven G. Goebel , Richard E. Warren, Jr.
发明人： Paul R. Angel , James M. Caldwell , Narendra D. Joshi , Steven Marakovits , Kelley A. Foresman , Steven G. Goebel , Richard E. Warren, Jr.
IPC分类号： F23R3/14 , F23R3/28 , F02C1/00
CPC分类号： F23R3/14 , F23R3/286
摘要： An apparatus for premixing fuel and air prior to combustion in a gas turbine engine, including: a linear mixing duct having a circular cross-section defined by a wall; a centerbody located along a central axis of the mixing duct and extending substantially the full length of the mixing duct, the centerbody having a plurality of orifices therein to inject fuel into the mixing duct with an axial velocity component; a fuel supply in flow communication with the centerbody orifices; an outer annular swirler located adjacent an upstream end of the mixing duct and including a plurality of circumferentially spaced vanes oriented so as to swirl air flowing therethrough in a first direction; an inner annular swirler located adjacent the mixing duct upstream end and including a plurality of circumferentially spaced vanes, the vanes having an outer radial portion having a leading edge and a trailing edge oriented so as to swirl air flowing therethrough in a second direction opposite the first swirl direction by the outer annular swirler vanes and an inner radial portion with a leading edge and a trailing edge oriented so as to provide a boundary layer of air substantially along the centerbody; and, a hub separating the inner and outer annular swirlers to permit independent rotation of an air stream therethrough. The outer annular swirler may also include vanes having an inner radial portion with a leading edge and a trailing edge oriented so as to swirl the air flow therethrough and an outer radial portion having a leading edge and a trailing edge oriented so as to provide a boundary layer of air substantially along the mixing duct wall. High pressure air is injected from a compressor into the mixing duct through the inner and outer annular swirlers and fuel is injected into the mixing duct so that the high pressure air and the fuel is uniformly mixed therein, whereby minimal formation of pollutants is produced when the fuel/air mixture is exhausted out the downstream end of the mixing duct into a combustor and ignited.

10. 发明授权

US6050082A Intercooled gas turbine engine with integral air bottoming cycle 失效
标题翻译：具有整体气底循环的中间燃气涡轮发动机
公开(公告)号：US6050082A
公开(公告)日：2000-04-18
申请号：US9192
申请日：1998-01-20
申请人： Gary L. Leonard , Narendra D. Joshi
发明人： Gary L. Leonard , Narendra D. Joshi
IPC分类号： F02C3/10 , F02C6/00 , F02C7/143 , F02C3/04 , F02C6/18
CPC分类号： F02C6/003 , F02C3/10 , F02C7/143 , Y02T50/675
摘要： A gas turbine engine that includes a 2/3 stage intercooled booster compressor is described. In one embodiment, the engine includes a low pressure turbine and a booster compressor rotatable on a low pressure shaft. The engine further includes a high pressure compressor, a high pressure combustor, and a high pressure turbine rotatable on a high pressure (HP) shaft and forming the core engine. A low pressure combustor is located at the outlet of the high pressure turbine and a power turbine. The booster compressor includes first and second stage compressors, and air flow from the first stage compressor is supplied to a first intercooler, and air flow from the second stage compressor is supplied to a second intercooler. Airflow from the first intercooler is supplied to the inlet of the second stage compressor, and airflow from the second intercooler is split between being provided to the inlet of the high pressure compressor and a recuperator. The recuperator also is coupled to receive air from the power turbine so that air from the power turbine heats air split away from the second stage compressor before being exhausted to atmosphere. Air heated in the recuperator drives the low pressure turbine connected to the booster compressors.
摘要翻译：描述了包括+ E，fra 2/3 + EE级中间冷却式增压压缩机的燃气涡轮发动机。在一个实施例中，发动机包括可在低压轴上旋转的低压涡轮机和增压压缩机。发动机还包括高压压缩机，高压燃烧器和可在高压（HP）轴上旋转并形成核心发动机的高压涡轮机。低压燃烧器位于高压涡轮机的出口处和动力涡轮机。增压压缩机包括第一级和第二级压缩机，并且来自第一级压缩机的空气流被供应到第一中间冷却器，并且来自第二级压缩机的空气流被供应到第二中间冷却器。来自第一中间冷却器的气流被供应到第二级压缩机的入口，并且来自第二中间冷却器的气流在被提供到高压压缩机的入口和换热器之间被分开。换热器还联接以从动力涡轮机接收空气，使得来自动力涡轮机的空气在排放到大气之前加热从第二级压缩机分离的空气。在换热器中加热的空气驱动连接到增压压缩机的低压涡轮机。

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