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    • 132. 发明申请
    • Counter Swirl Shear Mixer
    • 逆流搅拌机
    • US20060162337A1
    • 2006-07-27
    • US10905907
    • 2005-01-26
    • Peter StuttafordYan Chen
    • Peter StuttafordYan Chen
    • F23R3/14
    • F23R3/286F23R3/14F23R3/343
    • The present invention provides a mixer for a gas turbine combustor comprising a plurality of generally annular walls interconnected by at least a plurality of first vanes. The vanes are oriented at angles, so as to create a shear layer between the two flows. A fuel is then injected so as to penetrate the shear layer for enhanced mixing. The mixture passes through an extended mixing passage to provide sufficient time and distance for improved mixedness prior to ignition. Multiple embodiments of the present invention are disclosed comprising a plurality of first vanes and a plurality of first and second vanes.
    • 本发明提供了一种用于燃气轮机燃烧器的混合器,其包括由至少多个第一叶片互连的多个大体上环形的壁。 叶片以角度定向,以便在两个流之间产生剪切层。 然后喷射燃料以便穿透剪切层以增强混合。 混合物通过延长的混合通道以提供足够的时间和距离,以提高点火之前的混合度。 公开了本发明的多个实施例,其包括多个第一叶片和多个第一和第二叶片。
    • 135. 发明授权
    • Method of operating a flamesheet combustor
    • 操作火焰燃烧器的方法
    • US06986254B2
    • 2006-01-17
    • US10437748
    • 2003-05-14
    • Peter J. StuttafordStephen JenningsYan Chen
    • Peter J. StuttafordStephen JenningsYan Chen
    • F02C7/228F02C9/26
    • F23R3/286F23R3/343F23R2900/00014
    • A method of operating a gas turbine combustion system having reduced emissions and improved flame stability at multiple load conditions is disclosed. The improved combustion system accomplishes this through complete premixing, a plurality of fuel injector locations, combustor geometry, and precise three dimensional staging between fuel injectors. Axial, radial, and circumferential fuel staging is utilized including fuel injection proximate air swirlers. Furthermore, strong recirculation zones are established proximate the introduction of fuel and air premixture from different stages to the combustion zone. Fuel injection staging sequences are disclosed that create the conditions necessary to provide stable combustion and reduced emissions at multiple load conditions.
    • 公开了一种在多个负载条件下操作具有减少的排放和改善的火焰稳定性的燃气轮机燃烧系统的方法。 改进的燃烧系统通过完全预混合,多个燃料喷射器位置,燃烧器几何形状和燃料喷射器之间的精确三维分级来实现。 使用轴向,径向和周向燃料分级,包括靠近空气旋流器的燃料喷射。 此外,在从不同阶段到燃烧区的燃料和空气预混物的引入附近建立强的再循环区域。 公开了燃料喷射分级序列,其产生在多个负载条件下提供稳定燃烧和减少排放所必需的条件。
    • 136. 发明授权
    • Gas turbine fuel pilot nozzle
    • 燃气轮机燃油先导喷嘴
    • US06886346B2
    • 2005-05-03
    • US10644385
    • 2003-08-20
    • Peter A. SobieskiKelly Shawn SmithAlan LovelaceHany Rizkalla
    • Peter A. SobieskiKelly Shawn SmithAlan LovelaceHany Rizkalla
    • F02C7/22
    • F02C7/22F23R3/286F23R3/343
    • A pilot fuel nozzle configuration for use in a combustor is disclosed having a natural frequency outside the range of the operating frequencies of a gas turbine engine. Multiple embodiments are disclosed for the improved pilot fuel nozzle including configurations for newly manufactured nozzles, repair to existing pilot nozzles, as well as multiple natural frequency levels for the improved pilot fuel nozzle. The pilot fuel nozzle comprises an elongated housing, first and second flanges, and a nozzle tip, with the first flange fixed to the elongated housing at a first end and the nozzle tip fixed to the second end, opposite of the first end. The second flange is fixed along the elongated housing and is used for attaching the pilot fuel nozzle to a combustor. The present invention incorporates an increased wall thickness along at least a mid-span portion of the pilot nozzle to increase the stiffness and change the natural frequency.
    • 公开了一种用于燃烧器的先导燃料喷嘴构造,其具有在燃气涡轮发动机的工作频率范围之外的固有频率。 公开了用于改进的引燃燃料喷嘴的多个实施例,其包括用于新制造的喷嘴的构造,对现有导向喷嘴的修理以及用于改进的引燃燃料喷嘴的多个固有频率水平。 导向燃料喷嘴包括细长壳体,第一和第二凸缘以及喷嘴尖端,其中第一凸缘在第一端处固定到细长壳体,并且喷嘴尖端固定到与第一端相对的第二端。 第二凸缘沿着细长壳体固定,并用于将引燃燃料喷嘴连接到燃烧器。 本发明包括沿引导喷嘴的至少中跨部分增加的壁厚,以增加刚度并改变固有频率。
    • 138. 发明申请
    • Pressure ram device on a gas turbine combustor
    • 燃气轮机燃烧器上的压力冲击装置
    • US20030233833A1
    • 2003-12-25
    • US10302229
    • 2002-11-22
    • Power Systems Mfg, LLC
    • Vincent MartlingZenhua Xaio
    • F23R003/30
    • F23R3/286F23R3/005
    • A method for providing cooling air to the venturi and the combustion chamber in a low NOx emission combustor as used in a gas turbine engine that includes the steps of providing an annular air passage surrounding said combustion chamber and venturi where said cooling air under pressure enters the combustion chamber/venturi near the aft portion of the combustion chamber, passing the air along the combustion chamber, past the venturi where the air exits near the front portion of the convergent area of the venturi. The method prevents any channel/passage cooling air from being received into the combustion chamber, and at the same time, introduces the outlet of the cooling air, after the air has passed over the combustion chamber of the venturi and has been heated, back into the premix chamber thereby improving the efficiency of the combustor while reducing and lowering NOx emission in the combustion process. In an alternate embodiment, a combustion system is disclosed incorporating a shaped deflector to direct cooling air into a cooling passageway of a venturi. The deflector is configured to provide a cooling system with increased total pressure to increase overall cooling effectiveness.
    • 一种用于在燃气涡轮发动机中使用的低NOx排放燃烧器中的文丘里管和燃烧室的冷却空气的方法,该方法包括以下步骤:提供围绕所述燃烧室和文丘里管的环形空气通道,其中所述压力下的冷却空气进入 在燃烧室的后部附近的燃烧室/文丘里管,沿着燃烧室使空气通过文丘里管,其中空气在文丘里管的会聚区域的前部附近离开。 该方法防止任何通道/通道冷却空气被接收到燃烧室中,并且同时在空气已经经过文丘里管的燃烧室并且被加热之后引入冷却空气的出口 从而提高了燃烧器的效率,同时降低和降低了燃烧过程中的NOx排放。 在替代实施例中,公开了一种结合成形偏转器以将冷却空气引导到文氏管的冷却通道中的燃烧系统。 偏转器被配置为提供具有增加的总压力的冷却系统以增加总体冷却效果。