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21. 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。

22. 发明授权

US5351477A 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：US5351477A
公开(公告)日：1994-10-04
申请号：US170969
申请日：1993-12-21
申请人： Narendra D. Joshi , Eric J. Kress
发明人： Narendra D. Joshi , Eric J. Kress
IPC分类号： F23C7/00 , F23D17/00 , F23R3/28 , F23R3/36 , F02C3/20 , F23R3/32
CPC分类号： F23D17/002 , F23C7/004 , F23R3/286 , F23R3/36 , F23C2900/07001 , F23D2900/11101
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 gas fuel passages, all of which are in fluid communication with the gas fuel manifold to inject gas fuel into the air stream, the vane cavities also having liquid fuel passages therethrough in fluid communication with the liquid fuel manifold, and a hub separating the inner and outer annular swirlers to allow independent rotation thereof, the hub having a circumferential slot in fluid communication with the liquid fuel passages which injects liquid fuel into the air stream, wherein high pressure air from a compressor is injected into the mixing duct through the swirlers to form an intense shear region and gas fuel is injected into the air stream from the outer annular swirler vanes and/or liquid fuel is injected into the air stream from the hub slot.
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腔和气体燃料通道的中空叶片，所有这些中空叶片都与气体燃料歧管以将气体燃料喷射到空气流中，叶片腔还具有与液体燃料歧管流体连通的液体燃料通道，以及分隔内部和外部环形旋流器以允许其独立旋转的毂，毂具有与液体燃料通道流体连通的周向狭槽，其将液体燃料喷射到空气流中，其中来自压缩机的高压空气 sor通过旋流器注入到混合管道中以形成强烈的剪切区域，并且气体燃料从外环形旋流器叶片注入空气流中，和/或液体燃料从轮毂槽注入空气流中。

23. 发明授权

US4860533A Torch igniter for a combustor having U.V. flame detection 失效
标题翻译：用于具有紫外线的燃烧器的火炬点火器火焰探测
公开(公告)号：US4860533A
公开(公告)日：1989-08-29
申请号：US97676
申请日：1987-09-17
申请人： Narendra D. Joshi
发明人： Narendra D. Joshi
IPC分类号： F02C7/264 , F23M11/04
CPC分类号： F23M11/045 , F02C7/264
摘要： A gas turbine combustor is ignited by a torch igniter. The ignition chamber of the torch igniter receives a swirled stream of air into which is injected atomized fuel. The mixture of fuel and air is ignited by a spark plug in the ignition chamber. The combustion products and igniter flame are exhausted from the ignition chamber through a gas passageway penetrating through the sidewall of the gas turbine combustor to ignite a flame in the combustor. The igniter flame and the combustion flame are detected by a U.V. detector looking through aligned igniter air inlet and igniter exhaust passageways into the combustor. A U.V. transmissive window is disposed in the air inlet passageway to isolate the detector from the pressure of the igniter and combustor. A swirler in the air inlet tubulation supplies a flow of air across the window to inhibit deposit of combustion products thereon.
摘要翻译：燃气轮机燃烧器被火炬点火器点燃。火炬点火器的点火室接收旋转的空气流，喷射雾化燃料。燃料和空气的混合物被点火室中的火花塞点燃。燃烧产物和点火器火焰通过贯穿燃气轮机燃烧器的侧壁的气体通道从点燃室排出，以点燃燃烧器中的火焰。点火器火焰和燃烧火焰由U.V. 检测器通过对准的点火器进气口和点燃器排气通道进入燃烧器。一个U.V. 透气窗设置在空气入口通道中，以将检测器与点火器和燃烧器的压力隔离。空气入口管中的旋流器提供空气流过窗口以抑制燃烧产物在其上的沉积。

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