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    • 1. 发明授权
    • Fuel air mixer for a radial dome in a gas turbine engine combustor
    • 用于燃气涡轮发动机燃烧器中的径向圆顶的燃料空气混合器
    • US06339923B1
    • 2002-01-22
    • US09398559
    • 1999-09-17
    • Ely E. HalilaStuart C. GreenfieldPaul V. HeberlingJohn D. BiblerJohn A. Kastl
    • Ely E. HalilaStuart C. GreenfieldPaul V. HeberlingJohn D. BiblerJohn A. Kastl
    • F23R330
    • F23R3/286F23R3/343F23R3/50
    • A fuel air mixer for a gas turbine engine combustor having a longitudinal axis therethrough, wherein the fuel air mixer is configured for use in a dome oriented substantially radial to the longitudinal axis. The fuel air mixer includes a fuel injection assembly having a first end, a second end, a fuel passage extending therethrough, and a flange portion having a plurality of spaced openings formed therein which extends from the first end. The fuel air mixer also includes a mixer assembly having a first end, a second end, a cavity formed in a central portion thereof, and a flange portion having a plurality of spaced openings formed therein which extends from the first end. The mixer assembly is configured to receive the fuel injection assembly in the cavity so that the fuel injection assembly and the mixer assembly are able to be connected to an outer casing of the combustor by means of the respective flange portions.
    • 一种用于燃气涡轮发动机燃烧器的燃料空气混合器,其具有穿过其的纵向轴线,其中所述燃料空气混合器构造成用于基本上径向于所述纵向轴线的圆顶。 燃料空气混合器包括燃料喷射组件,其具有第一端,第二端,延伸穿过其中的燃料通道,以及在其中形成有从第一端延伸的多个间隔开口的凸缘部分。 燃料空气混合器还包括具有第一端,第二端,形成在其中心部分中的空腔的混合器组件,以及形成在其中的从第一端延伸的多个间隔开口的凸缘部分。 混合器组件构造成在空腔中接收燃料喷射组件,使得燃料喷射组件和混合器组件能够通过相应的凸缘部分连接到燃烧器的外壳。
    • 3. 发明授权
    • Cyclonic prechamber with a centerbody
    • 带有中心体的旋风预制室
    • US5444982A
    • 1995-08-29
    • US180245
    • 1994-01-12
    • Paul V. HeberlingMark P. KelseyWillard J. Dodds
    • Paul V. HeberlingMark P. KelseyWillard J. Dodds
    • F23D11/36F23D11/44F23R3/12F23R3/14F23R3/32
    • F23R3/12F23D11/36F23D11/441F23R3/14Y02T50/675
    • The present invention provides a cyclonic precombustion mixing chamber or prechamber having an axially extending annular cyclonic chamber to vaporize liquid fuel therein and a centerbody centrally disposed within. A fuel injection means introduces liquid fuel radially outward into the cyclonic chamber. The centerbody extends axially through an annular exit of the prechamber to define a throat and throat exit therebetween which is optimally designed for preventing backflash and autoignition. In one embodiment the diameter of the throat is sized to substantially match the diameter of the potential core. The diameter of the potential core and the centerbody at the throat exit, D.sub.c, may given by the solution to the following equation;4(D.sub.c /D.sub.t).sup.4 =(.rho./.DELTA.P)V.sub.w.sup.2 (D.sub.w /D.sub.t).sup.2 [1+(D.sub.c /D.sub.t).sup.2 ]where D.sub.t is the diameter of the outer edge of the throat exit, .rho. is the density of the air (determined from the air pressure and temperature at the inlet of the prechamber), D.sub.w is the inside diameter of the cyclone as defined by a cyclonic chamber inlet, V.sub.w is the tangential velocity, and .DELTA.P is the total pressure drop across the combustor (about 5% of the total pressure of the compressor discharge flow in many aircraft gas turbine engine combustors).
    • 本发明提供了一种旋风预燃混合室或预燃室,其具有轴向延伸的环形旋风室,以使其中的液体燃料蒸发并且集中设置在其内的中心体。 燃料喷射装置将液体燃料径向向外引入旋风室。 中心体轴向延伸通过预制室的环形出口,以在其间限定出喉部和喉部出口,其最佳设计用于防止反向闪光和自燃。 在一个实施例中,喉部的直径的尺寸被设计成基本匹配电位芯的直径。 喉部出口处的电位核心和中心体的直径Dc可以通过以下方程式求解: 4(Dc / Dt)4 =(rho / DELTA P)Vw2(Dw / Dt)2 [1+(Dc / Dt)2]其中Dt是喉口出口的外边缘的直径,rho是 空气(从空气压力和预制室入口处的温度确定),Dw是由旋风室入口限定的旋风分离器的内径,Vw是切向速度,DELTA P是整个压缩机的总压降 燃烧器(在许多飞机燃气涡轮发动机燃烧器中压缩机排放流的总压力的约5%)。
    • 5. 发明授权
    • Dual fuel mixer for gas turbine combustor
    • 用于燃气轮机燃烧器的双燃料混合器
    • US5675971A
    • 1997-10-14
    • US581813
    • 1996-01-02
    • Paul R. AngelJames M. CaldwellPaul V. HeberlingAnthony J. DeanNarendra D. Joshi
    • Paul R. AngelJames M. CaldwellPaul V. HeberlingAnthony J. DeanNarendra D. Joshi
    • F23R3/28F02C1/00F02G3/00
    • F23R3/286F23D2900/14004
    • An air fuel mixer is disclosed having a mixing duct, a shroud surrounding the upstream end of the mixing duct in which a fuel manifold is provided 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 for imparting swirl to an air stream, a hub separating the inner and outer annular swirlers to allow independent rotation of the air stream, and a centerbody located axially along and substantially the full length of the mixing duct. In order to inject one type of fuel into the mixing duct, fuel is supplied to the outer annular swirlers which include hollow vanes with internal cavities, wherein the internal cavities of the outer swirler vanes are in fluid communication with the fuel manifold in the shroud. The outer swirler vanes further include a plurality of fuel passages therethrough in flow communication with the internal cavities. A second fuel can be injected into the mixing duct by means of a plurality of orifices in the centerbody wall which are in flow communication with a fuel supply and control means. In this way, 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 outer swirler vane passages and/or the centerbody orifices so that the high pressure air and the fuel is uniformly mixed therein so as to produce minimal formation of pollutants when a fuel/air mixture is exhausted out the downstream end of the mixing duct into the combustor and ignited.
    • 公开了一种空气燃料混合器,其具有混合管道,围绕混合管道的上游端的护罩,其中设置有与燃料供应和控制装置流动连通的燃料歧管,一组相邻的内部和外部反向旋转旋流器 混合管道的上游端,用于向气流产生涡流;轮毂,分隔内外环形旋流器,以允许空气流的独立旋转;以及沿着混合管道的大致整个长度方向定位的中心体。 为了将一种类型的燃料喷射到混合管道中,燃料被供应到外部环形旋流器,其包括具有内部空腔的中空叶片,其中外部旋流器叶片的内部空腔与护罩中的燃料歧管流体连通。 外旋流器叶片还包括与内腔流动连通的多个通过其的燃料通道。 第二燃料可以通过与燃料供应和控制装置流动连通的中心体壁中的多个喷嘴喷射到混合管道中。 以这种方式,来自压缩机的高压空气通过旋流器喷射到混合管道中以形成强烈的剪切区域,并且燃料从外部旋流器叶片通道和/或中心体孔口喷射到混合管道中,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
    • Dual fuel mixer for gas turbine combustor
    • 用于燃气轮机燃烧器的双燃料混合器
    • US5778676A
    • 1998-07-14
    • US581817
    • 1996-01-02
    • Narendra D. JoshiPaul R. AngelJames M. CaldwellPaul V. HeberlingAnthony J. Dean
    • Narendra D. JoshiPaul R. AngelJames M. CaldwellPaul V. HeberlingAnthony J. Dean
    • F23D11/10F23D17/00F23R3/14F23R3/36F02C1/00F02G3/00
    • F23R3/14F23D11/101F23D17/002F23R3/36F23C2900/07001F23D2209/10F23D2209/30
    • An air fuel mixer is disclosed having a mixing duct, a shroud surrounding the upstream end of the mixing duct in which a fuel manifold is provided 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 for imparting swirl to an air stream, a hub separating the inner and outer annular swirlers to allow independent rotation of the air stream, and a centerbody located axially along and substantially the full length of the mixing duct. In order to inject one type of fuel into the mixing duct, fuel is supplied to the outer annular swirlers which include hollow vanes with internal cavities, wherein the internal cavities of the outer swirler vanes are in fluid communication with the fuel manifold in the shroud. The outer swirler vanes further include a plurality of fuel passages therethrough in flow communication with the internal cavities. A second fuel can be injected into the mixing duct by means of a plurality of orifices in the centerbody wall which are in flow communication with a fuel supply and control means. In this way, 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 outer swirler vane passages and/or the centerbody orifices so that the high pressure air and the fuel is uniformly mixed therein so as to produce minimal formation of poullutants when a fuel/air mixture is exhausted out the downstream end of the mixing duct into the combustor and ignited.
    • 公开了一种空气燃料混合器,其具有混合管道,围绕混合管道的上游端的护罩,其中设置有与燃料供应和控制装置流动连通的燃料歧管,一组相邻的内部和外部反向旋转旋流器 混合管道的上游端,用于向气流产生涡流;轮毂,分隔内外环形旋流器,以允许空气流的独立旋转;以及沿着混合管道的大致整个长度方向定位的中心体。 为了将一种类型的燃料喷射到混合管道中,燃料被供应到外部环形旋流器,其包括具有内部空腔的中空叶片,其中外部旋流器叶片的内部空腔与护罩中的燃料歧管流体连通。 外旋流器叶片还包括与内腔流动连通的多个通过其的燃料通道。 第二燃料可以通过与燃料供应和控制装置流动连通的中心体壁中的多个喷嘴喷射到混合管道中。 以这种方式,来自压缩机的高压空气通过旋流器喷射到混合管道中以形成强烈的剪切区域,并且燃料从外部旋流器叶片通道和/或中心体孔口喷射到混合管道中,使得高压 空气和燃料均匀地混合在一起,以便当燃料/空气混合物从混合管道的下游端排出到燃烧器中并点燃时,产生最小的起泡器的形成。