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公开(公告)号：US12044180B2
公开(公告)日：2024-07-23
申请号：US17975110
申请日：2022-10-27
发明人： Lucas John Stoia , Yimin Huang , Abdul Khan , Thomas Edward Johnson , Heath M. Ostebee , Jayaprakash Natarajan
摘要： An igniter for a combustor of a turbomachine includes a fuel inlet in fluid communication with a mixing plenum. The mixing plenum is positioned upstream of a mixing channel. An air inlet is in fluid communication with the mixing plenum and an ignition source is in operative communication with the mixing channel. The igniter may include a mounting flange configured for coupling the igniter to the combustor. The ignition source may be positioned proximate to a downstream end of the mixing channel and upstream of the mounting flange. The mixing channel may define a venturi shape. The venturi shape includes a converging section between an upstream end of the mixing channel and a venturi throat.
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公开(公告)号：US10955141B2
公开(公告)日：2021-03-23
申请号：US15626387
申请日：2017-06-19
摘要： The present disclosure is directed to a fuel nozzle including a center body having a tube shape and a ring manifold disposed at an aft end of the center body. The fuel nozzle also includes an inner tube extending axially through the ring manifold and disposed within the center body. The inner tube is in fluid communication with a diluent supply. The fuel nozzle further includes a fuel tube extending helically around a portion of the inner tube. The fuel tube fluidly couples a fuel plenum of the ring manifold to a liquid fuel supply. Furthermore, the fuel nozzle includes a plurality of fuel injectors circumferentially spaced within an outer band of the ring manifold and in fluid communication with the fuel plenum. Each fuel injector is oriented to direct atomized liquid fuel radially outward from the center body. The ring manifold and the inner tube are thermally decoupled.
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公开(公告)号：US10947902B2
公开(公告)日：2021-03-16
申请号：US15621347
申请日：2017-06-13
摘要： An inlet manifold includes a main inlet oriented along a first direction and a pilot inlet oriented along a second direction perpendicular to the first direction. A wye passage includes an inlet branch in fluid communication with the main inlet. The inlet manifold also includes a first main passage in fluid communication with a first outlet branch of the wye passage and a second main passage in fluid communication with a second outlet branch of the wye passage. The first main passage extends generally along the first direction between the wye passage and a first main outlet. The second main passage extends generally along the first direction between the wye passage and a second main outlet. The inlet manifold also includes a pilot passage in fluid communication with the pilot inlet. The pilot passage extends generally along the first direction between the pilot inlet and a pilot outlet.
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公开(公告)号：US10697639B2
公开(公告)日：2020-06-30
申请号：US15460398
申请日：2017-03-16
摘要： A dual-fuel fuel nozzle includes a centerbody that at least partially defines an air plenum therein. A tip body is disposed at a downstream end of the centerbody. The tip body includes an upstream side that is axially spaced from a downstream side. The downstream side defines a circular slot and a circular recess that is positioned radially inwardly from the circular slot. The circular recess includes a floor and a side wall, The floor defines an insert opening and the side wall defines an annular groove that includes an undercut surface. The tip body further defines a plurality of orifices annularly arranged around the insert opening radially inward from the side wall of the circular recess. Each orifice includes an inlet that is in fluid communication with the air plenum and an outlet that is oriented towards the undercut surface.
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公开(公告)号：US09759426B2
公开(公告)日：2017-09-12
申请号：US14448321
申请日：2014-07-31
发明人： Thomas Edward Johnson , Christopher Paul Keener , Jason Thurman Stewart , Heath Michael Ostebee
摘要： A micro-mixer nozzle for use in a combustor of a combustion turbine engine, the micro-mixer nozzle including: a fuel plenum defined by a shroud wall connecting a periphery of a forward tube sheet to a periphery of an aft tubesheet; a plurality of mixing tubes extending across the fuel plenum for mixing a supply of compressed air and fuel, each of the mixing tubes forming a passageway between an inlet formed through the forward tubesheet and an outlet formed through the aft tubesheet; and a wall mixing tube formed in the shroud wall.
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公开(公告)号：US09546598B2
公开(公告)日：2017-01-17
申请号：US13760090
申请日：2013-02-06
摘要： The present application provides a variable volume combustor for use with a gas turbine engine. The variable volume combustor may include a liner, a number of micro-mixer fuel nozzles positioned within the liner, and a linear actuator so as to maneuver the micro-mixer fuel nozzles axially along the liner.
摘要翻译： 本申请提供了一种与燃气涡轮发动机一起使用的可变体积燃烧器。 可变体积燃烧器可以包括衬套，位于衬套内的多个微混合器燃料喷嘴，以及线性致动器，以便沿着衬套轴向地操纵微混合器燃料喷嘴。
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公开(公告)号：US20140216051A1
公开(公告)日：2014-08-07
申请号：US13760101
申请日：2013-02-06
IPC分类号： F02C7/22
CPC分类号： F23R3/04 , F23R3/045 , F23R3/286 , F23R2900/00012 , Y02T50/675
摘要： The present application provides a combustor for use with flow of fuel and a flow of air in a gas turbine engine. The combustor may include a number of micro-mixer fuel nozzles positioned within a liner and an air bypass system position about the liner. The air bypass system variably allows a bypass portion of the flow of air to bypass the micro-mixer fuel nozzles.
摘要翻译： 本申请提供了一种用于燃气涡轮发动机中的燃料流和空气流的燃烧器。 燃烧器可以包括位于衬套内的多个微混合器燃料喷嘴和围绕衬套的空气旁路系统位置。 空气旁路系统可变地允许空气流的旁路部分绕过微混合器燃料喷嘴。
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8.发明申请公开(公告)号：US20140144141A1
公开(公告)日：2014-05-29
申请号：US13684906
申请日：2012-11-26
IPC分类号： F23R3/28
CPC分类号： F23R3/286 , F23C2202/10 , F23L7/00 , F23L2900/07002
摘要： A premixer includes an air tube formed in a burner tube defining a longitudinal axis, and a coaxially disposed fuel tube with a turbulence enhancing chevron outlet. The fuel tube may include an exterior tube and an interior tube with the interior tube, the exterior tube or both having chevron outlets. The chevron outlets may be tapered and notched.
摘要翻译： 预混合器包括形成在限定纵向轴线的燃烧器管中的空气管和具有湍流增强人字形出口的同轴布置的燃料管。 燃料管可以包括外管和具有内管，外管或两者都具有人字形出口的内管。 人字形出口可以是锥形和凹口。
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公开(公告)号：US20190032561A1
公开(公告)日：2019-01-31
申请号：US15664025
申请日：2017-07-31
发明人： Lucas John Stoia , Yimin Huang , Abdul Khan , Thomas Edward Johnson , Heath M. Ostebee , Jayaprakash Natarajan
IPC分类号： F02C7/266
摘要： An igniter for a combustor of a turbomachine includes a fuel inlet in fluid communication with a mixing plenum. The mixing plenum is positioned upstream of a mixing channel. An air inlet is in fluid communication with the mixing plenum and an ignition source is in operative communication with the mixing channel. The igniter may include a mounting flange configured for coupling the igniter to the combustor. The ignition source may be positioned proximate to a downstream end of the mixing channel and upstream of the mounting flange. The mixing channel may define a venturi shape. The venturi shape includes a converging section between an upstream end of the mixing channel and a venturi throat.
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公开(公告)号：US20180363911A1
公开(公告)日：2018-12-20
申请号：US15626387
申请日：2017-06-19
摘要： The present disclosure is directed to a fuel nozzle including a center body having a tube shape and a ring manifold disposed at an aft end of the center body. The fuel nozzle also includes an inner tube extending axially through the ring manifold and disposed within the center body. The inner tube is in fluid communication with a diluent supply. The fuel nozzle further includes a fuel tube extending helically around a portion of the inner tube. The fuel tube fluidly couples a fuel plenum of the ring manifold to a liquid fuel supply. Furthermore, the fuel nozzle includes a plurality of fuel injectors circumferentially spaced within an outer band of the ring manifold and in fluid communication with the fuel plenum. Each fuel injector is oriented to direct atomized liquid fuel radially outward from the center body. The ring manifold and the inner tube are thermally decoupled.
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