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    • 33. 发明专利
    • Fuel/air premixing system for turbine engine
    • 用于涡轮发动机的燃油/空气预处理系统
    • JP2013231582A
    • 2013-11-14
    • JP2013093293
    • 2013-04-26
    • General Electric Co ゼネラル・エレクトリック・カンパニイ
    • ZUO BAIFANG
    • F23R3/14F23R3/28F23R3/30F23R3/32
    • F23R3/14F23C2900/07001F23R3/286
    • PROBLEM TO BE SOLVED: To provide a fuel/air premixing system for a turbine engine.SOLUTION: A system includes a fuel nozzle. The fuel nozzle includes a center body configured to receive a first portion of air and to deliver the air to a combustion region. The fuel nozzle also includes a swirler configured to receive a second portion of air and to deliver the air to the combustion region. The swirler includes an outer shroud wall, an inner hub wall, and a swirl vane. The swirl vane includes a radial swirl profile at a downstream edge of the swirl vane. The radial swirl profile includes a first region extending from the outer shroud wall to a transition point and a second region extending from the transition point to the inner hub wall. At least one of the first and second regions is substantially straight and at least one of the first and second regions is arcuate.
    • 要解决的问题:提供一种用于涡轮发动机的燃料/空气预混合系统。解决方案:一种系统包括燃料喷嘴。 燃料喷嘴包括中心体,其构造成容纳第一部分空气并将空气输送到燃烧区域。 燃料喷嘴还包括旋流器,其构造成接收第二部分空气并将空气输送到燃烧区域。 旋流器包括外护罩壁,内毂壁和旋流叶片。 涡旋叶片包括在涡流叶片的下游边缘处的径向涡旋轮廓。 径向涡流轮廓包括从外护罩壁延伸到过渡点的第一区域和从过渡点延伸到内毂壁的第二区域。 第一和第二区域中的至少一个基本上是直的,并且第一和第二区域中的至少一个是弓形的。
    • 36. 发明专利
    • System and method for enhancing flow in nozzle
    • 在喷嘴中增加流量的系​​统和方法
    • JP2012145322A
    • 2012-08-02
    • JP2011284836
    • 2011-12-27
    • General Electric Co ゼネラル・エレクトリック・カンパニイ
    • BATHINA MAHESHZIMINSKY WILLY STEVE
    • F23R3/14F23R3/20F23R3/28
    • F23R3/14F23C2900/07001F23D2900/14004F23D2900/14021F23R3/286
    • PROBLEM TO BE SOLVED: To reduce a low flow area and a flow separation region of a nozzle.SOLUTION: A nozzle includes a center body 12 that defines an axial centerline and a shroud 14 circumferentially surrounding at least a portion of the center body 12 to define an annular passage between the center body 12 and the shroud 14. A plurality of vanes 16 between the center body 12 and the shroud 14 comprise a radially outward portion 40 separated from the shroud 14. A method for enhancing flow through a nozzle includes a step of flowing a fuel through a center body 12 and a step of flowing a fluid stream 46 across a vane 16 located between the center body 12 and a shroud 14 surrounding at least a portion of the center body 12. The method further includes a step of flowing the fluid stream 46 between a radially outward portion 40 of the vane 16 and the shroud 14, wherein the radially outward portion 40 is separated from the shroud 14.
    • 要解决的问题:减少喷嘴的低流动面积和流动分离区域。 解决方案:喷嘴包括限定轴向中心线的中心体12和周向围绕中心体12的至少一部分的护罩14,以在中心体12和护罩14之间限定环形通道。多个 中心体12和护罩14之间的叶片16包括与护罩14分离的径向向外部分40.用于增强通过喷嘴的流动的方法包括使燃料流过中心体12的步骤和使流体流动的步骤 流体46穿过位于中心体12和围绕中心体12的至少一部分的护罩14之间的叶片16.该方法还包括使流体流46在叶片16的径向向外部分40和 护罩14,其中径向向外部分40与护罩14分离。版权所有:(C)2012,JPO&INPIT
    • 37. 发明专利
    • Multiple zone pilot for low emission combustion system
    • 用于低排放燃烧系统的多区域引导
    • JP2011196680A
    • 2011-10-06
    • JP2011062476
    • 2011-03-22
    • General Electric Co ゼネラル・エレクトリック・カンパニイ
    • KHAN ABDUL RAFEYJOHNSON THOMAS E
    • F23R3/12F23R3/28F23R3/30F23R3/34
    • F23R3/343F23C2900/07001F23R3/346
    • PROBLEM TO BE SOLVED: To prevent combustion instabilities between primary and secondary combustion zones of a gas turbine combustor.SOLUTION: A method of operating the combustor includes steps of delivering a primary fuel flow through a plurality of primary fuel nozzles 30 toward a primary combustion zone 34 and combusting the primary fuel flow in the primary combustion zone. A secondary fuel flow is delivered through a secondary fuel nozzle 32 toward a secondary combustion zone 38 and combusted therein. The secondary fuel nozzle is located such that the plurality of primary fuel nozzles are arrayed around the secondary fuel nozzle. An outer swirler 40 is located between the plurality of primary fuel nozzles and the secondary fuel nozzle and includes a plurality of outer swirler channels 42 extending therebetween. A flow of swirler fuel 54 is delivered through the plurality of outer swirler channels into the combustor substantially between the primary combustion zone and the secondary combustion zone to stabilize combustion in the primary combustion zone and/or the secondary combustion zone.
    • 要解决的问题:为了防止燃气轮机燃烧器的主燃烧区域和二次燃烧区域之间的燃烧不稳定性。解决方案:操作燃烧器的方法包括以下步骤:将主燃料流通过多个主燃料喷嘴30朝向主燃烧区域 并且燃烧主燃烧区中的主要燃料流。 二次燃料流通过二次燃料喷嘴32被输送到二次燃烧区38并在其中燃烧。 第二燃料喷嘴被定位成使得多个主燃料喷嘴围绕第二燃料喷嘴排列。 外旋流器40位于多个主燃料喷嘴和次燃料喷嘴之间,并且包括在其间延伸的多个外旋流器通道42。 旋流器燃料54的流动通过多个外部旋流器通道输送到主燃烧区和次燃烧区之间的燃烧器中,以稳定主燃烧区和/或二次燃烧区中的燃烧。