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    • 51. 发明公开
    • SWIRLER WITH GAS INJECTORS
    • 带气体喷射器的旋流器
    • EP2257738A1
    • 2010-12-08
    • EP09727558.0
    • 2009-03-26
    • Siemens Aktiengesellschaft
    • MILOSAVLJEVIC, VladimirPERSSON, AllanPERSSON, Magnus
    • F23C7/00F23D14/02F23D14/70F23R3/14F23R3/28
    • F23C7/004F23C2900/07001F23D14/02F23D14/70F23D2900/14021F23R3/14F23R3/286
    • The invention relates to a swirler for premixing a flow of fuel (14) and a flow of air (12) provided to a burner (1) for a gas turbine engine, which burner (1) is provided with a swirler (3) for mixing the air (12) and the fuel (14) and wherein the swirler (3) is provided with swirler wings (3a), wherein a channel formed between two adjacent swirler wings (3a) defines a passage. It is one object of the invention to provide stability to a lean premixed combustion. This is achieved by a swirler of the above mentioned type having one fuel tube (15) for gaseous fuel positioned in parallel on each side of a mixing rod (15b) in said passage, wherein said fuel tubes (15) are provided with a plurality of diffuser holes (15a) distributed along the tube (15) acting as gas injectors for efficiently distributing fuel (14) in a flow of air passing through said swirler (3) passage.
    • 本发明涉及一种用于将燃料流(14)和提供给用于燃气涡轮发动机的燃烧器(1)的空气流(12)预混的旋流器,该燃烧器(1)设置有旋流器(3) 混合空气(12)和燃料(14),并且其中旋流器(3)设置有旋流器翼(3a),其中形成在两个相邻旋流器旋翼(3a)之间的通道限定通道。 本发明的一个目的是为贫燃预混燃烧提供稳定性。 这通过上述类型的旋流器实现,其具有用于气体燃料的一个燃料管(15),所述燃料管在所述通道中的混合杆(15b)的每侧上平行定位,其中所述燃料管(15)设置有多个 沿着作为气体喷射器的管(15)分布的扩散器孔(15a),用于在通过所述旋流器(3)通道的空气流中有效地分配燃料(14)。
    • 53. 发明公开
    • Gas turbine guide vanes with tandem airfoils and fuel injection and method of use
    • GasturbinenführungsschaufelnmitTandemflächenund Brennstoffeinspritzung sowie Verwendungsverfahrendafür
    • EP1933007A2
    • 2008-06-18
    • EP07121734.3
    • 2007-11-28
    • General Electric Company
    • Bunker, Ronald ScottEvulet, Andrei Tristan
    • F01D5/14F01D9/04F02K3/08
    • F01D5/146F01D9/041F01D9/065F02K3/08F23C2900/07001F23R3/20Y02T50/673
    • Gas turbine engine guide vanes (12) that include a first flange (26) connected with a casing (18) of a gas turbine engine, a second flange (28) connected with the casing, a first airfoil (22) disposed between the first and second flanges and connected thereto, and a second airfoil (24) disposed between the first and second flanges and connected thereto so as to form a gap (34) extending radially between a first trailing portion of the first airfoil and a second leading portion of the second airfoil, the hollow portion being in flow communication with the gap so as to allow a gaseous fuel (26) to flow from the hollow portion through the gap and into a fluid flowing over the guide vane. Gas turbines that use the guide vanes and methods for injecting a gaseous fuel for combustion in a gas turbine engine are also disclosed.
    • 包括与燃气涡轮发动机的壳体(18)连接的第一凸缘(26)的燃气涡轮发动机导向叶片(12),与壳体连接的第二凸缘(28),设置在第一 和第二凸缘并连接到其上,第二翼型件(24)设置在第一和第二凸缘之间并与之连接,以形成在第一翼型件的第一尾部之间径向延伸的间隙(34) 所述第二翼型件,所述中空部分与所述间隙流动连通,以允许气体燃料(26)从所述中空部分流过所述间隙并流入流过所述导向叶片的流体。 还公开了使用引导叶片的燃气轮机和用于在燃气涡轮发动机中燃烧气体燃料的方法。
    • 56. 发明公开
    • Gas turbine engine combustor can with trapped vortex cavity
    • Gasturbinenbrennkammer mit Hohlraumfüreingeschlossene Wirbel
    • EP1371906A2
    • 2003-12-17
    • EP03252293.0
    • 2003-04-10
    • GENERAL ELECTRIC COMPANY
    • Haynes, Joel MeierFeitelberg, Alan S.Burrus, David LouisJoshi, Narendra Digamber
    • F23R3/14F23R3/20F23R3/28F23R3/34
    • F23R3/346F23C2900/07001F23D2900/14004F23R3/283F23R3/286F23R3/58F23R2900/00015
    • A gas turbine engine combustor can (23) downstream of a pre-mixer (28) has a pre-mixer flowpath (134) therein and circumferentially spaced apart swirling vanes (32) disposed across the pre-mixer flowpath (134). A primary fuel injector (68) is positioned for injecting fuel into the pre-mixer flowpath (134). A combustion chamber (26) is surrounded by an annular combustor liner (27) disposed in supply flow communication with the pre-mixer (28). An annular trapped dual vortex cavity (40) located at an upstream end (30) of the combustor liner (27) is defined between an annular aft wall (44), an annular forward wall (46), and a circular radially outer wall (48) formed therebetween. A cavity opening (42) at a radially inner end (39) of the cavity (40) is spaced apart from the radially outer wall (48). Air injection first holes (112) are disposed through the forward wall (46) and air injection second holes are disposed through the aft wall (44). Fuel injection holes (70) are disposed through at least one of the forward and aft walls (46, 44).
    • 在预混合器(28)下游的燃气涡轮发动机燃烧室(23)在其中具有预混合器流动路径(134),并且跨过预混合器流动路径(134)设置周向间隔开的涡流叶片(32)。 主燃料喷射器(68)被定位成用于将燃料喷射到预混合器流路(134)中。 燃烧室(26)被设置成与预混合器(28)供应流动连通的环形燃烧器衬套(27)包围。 位于燃烧器衬套(27)的上游端(30)处的环形捕获双涡流腔(40)被限定在环形后壁(44),环形前壁(46)和圆形径向外壁 48)。 在空腔(40)的径向内端(39)处的空腔开口(42)与径向外壁(48)间隔开。 空气注入第一孔(112)穿过前壁(46)设置,空气注入第二孔穿过后壁(44)设置。 燃料喷射孔(70)穿过前壁和后壁(46,44)中的至少一个设置。
    • 59. 发明公开
    • Dry low emission combustor for gas turbine engines
    • Vormischbrennkammer mit Niedrigem Ausstossfürindustrielle Gasturbinen
    • EP0747636A2
    • 1996-12-11
    • EP96304162.9
    • 1996-06-05
    • ALLISON ENGINE COMPANY, INC.
    • Razdan, Mohan K.McLeroy, Jacob T.Smith, Duane A.
    • F23R3/14
    • F23R3/343F23C2900/07001F23D14/02F23D2206/10F23D2900/00008F23D2900/00015F23R3/14F23R3/286F23R2900/03041Y02T50/675
    • The present invention relates generally to a low emission can-annular combustion system for an industrial gas turbine engine to satisfy increasingly stringent environmental requirements. The combustion system of the present invention employs a dual mode combustion technique to meet engine operability requirements and high power emission targets without the use of combustor diluent injection or post combustor exhaust treatment. A lean premix combustion mode is utilized to minimize primary zone combustion temperatures and limit the oxide of nitrogen production during high power engine operation. A pilot-starting auxiliary fueling system is utilized to augment the main premix fueling system. The lean premix combustion mode is enabled by a lean premix dome having a fixed axial swirler with radial fuel pathways connecting to a circumferential main fuel manifold for distributing the fuel more uniformly across the flow path. A converging portion in the lean premix dome accelerates the fluid flow to prevent flashback from the primary combustion zone.
    • 本发明一般涉及一种用于工业燃气涡轮发动机的低排放罐环式燃烧系统,以满足越来越严格的环境要求。 本发明的燃烧系统采用双模燃烧技术,以满足发动机的可操作性要求和高功率发射目标,而不需要使用燃烧器稀释剂喷射或后燃烧器排气处理。 利用稀薄预混合燃烧模式来最小化初级区域燃烧温度并限制高功率发动机运行期间氮气生产的氧化物。 采用先导起动辅助加油系统来增加主要的预混燃料供给系统。 贫预混合燃烧模式由具有固定轴向旋流器的稀薄预混合圆顶实现,其具有连接到周向主燃料歧管的径向燃料通路,用于在整个流动路径上更均匀地分配燃料。 贫预混合圆顶中的会聚部分加速流体流动,以防止从初级燃烧区闪回。