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    • 1. 发明申请
    • GAS TURBINE ENGINE WITH A TURBINE BLADE TIP CLEARANCE CONTROL SYSTEM
    • 气动涡轮发动机带涡轮叶片间隙控制系统
    • WO2016064393A1
    • 2016-04-28
    • PCT/US2014/061902
    • 2014-10-23
    • SIEMENS ENERGY, INC.
    • ZHANG, JipingPEPPERMAN, Barton M.
    • F01D11/18
    • F01D11/18F01D9/042F01D11/025F01D11/08F01D11/16F05D2240/11F05D2260/36F05D2260/38F05D2300/50212
    • A gas turbine engine (10) having a turbine blade tip clearance control system (12) for increasing the efficiency of the engine (10) by reducing the gap (14) between turbine blade tips (16) and radially outward ring segments (18) is disclosed. The turbine blade tip clearance control system (12) may include one or more clearance control bands (20) positioned radially outward of inner surfaces (22) of ring segments (18) and bearing against at least one outer surface (24) of the ring segments (18) to limit radial movement of the ring segments (18). During operation, the clearance control band (20) limits radial movement of the ring segments (18), and the turbine blade tips (16) do not have a pinch point during start-up transient conditions. In addition, the smallest gap (14) during turbine engine operation may be found at steady state operation of the gas turbine engine (10). Thus, the clearance control system (12) can set the gap (14) between turbine blade tips (16) and ring segments (18) to be zero at steady state operation.
    • 一种具有涡轮叶片顶端间隙控制系统(12)的燃气涡轮发动机(10),用于通过减小涡轮叶片尖端(16)和径向向外的环形段(18)之间的间隙(14)来提高发动机(10)的效率, 被披露。 涡轮叶片顶端间隙控制系统(12)可以包括一个或多个位于环段(18)的内表面(22)径向外侧的间隙控制带(20),并且抵靠环的至少一个外表面(24) 段(18)以限制环段(18)的径向移动。 在操作期间,间隙控制带(20)限制环段(18)的径向移动,并且涡轮叶片尖端(16)在启动瞬态条件下不具有夹点。 此外,在涡轮发动机运转中的最小间隙(14)可以在燃气轮机(10)的稳态运行中找到。 因此,间隙控制系统(12)可以将稳定状态操作期间涡轮机叶片尖端(16)和环形段(18)之间的间隙(14)设定为零。
    • 5. 发明申请
    • RADIAL POSITION CONTROL OF CASE SUPPORTED STRUCTURE
    • 案例支持结构的径向位置控制
    • WO2014014598A1
    • 2014-01-23
    • PCT/US2013/046270
    • 2013-06-18
    • UNITED TECHNOLOGIES CORPORATION
    • MCCAFFREY, Michael G.
    • F02C7/00F02C7/20F02C7/32
    • F01D11/16F01D11/18Y02T50/672
    • A radial position control assembly for a gas turbine engine stage includes a case structure. A supported structure is operatively supported by the case structure. The supported structure includes a hook providing an annular recess. A support ring is received in the recess. The supported structure and the support ring have different coefficients of thermal expansion. A sealing structure is adjacent to the supported structure. The support ring maintains the supported structure relative to the sealing structure at a clearance during thermal transients based upon a circumferential gap between adjacent supported structure and based upon a radial gap between the support ring and the supported structure.
    • 用于燃气涡轮发动机级的径向位置控制组件包括壳体结构。 支撑结构由壳体结构可操作地支撑。 支撑结构包括提供环形凹部的钩。 一个支撑环被容纳在凹槽中。 支撑结构和支撑环具有不同的热膨胀系数。 密封结构与支撑结构相邻。 基于相邻的支撑结构之间的周向间隙,并且基于支撑环和支撑结构之间的径向间隙,支撑环在热瞬变期间的间隙处相对于密封结构保持支撑结构。
    • 6. 发明申请
    • HOT GAS EXPANDER INLET CASING ASSEMBLY AND METHOD
    • 热气体扩散器入口组件和方法
    • WO2013101873A1
    • 2013-07-04
    • PCT/US2012/071716
    • 2012-12-27
    • ELLIOTT COMPANY
    • JOSEFCZYK, Ronald, JohnSCHUSTER, Carl, John
    • F02C7/20
    • F02C7/20F01D11/18F01D25/246F05D2220/62F05D2230/642F05D2240/12Y10T29/49323
    • A gas turbine device includes an inlet casing and a stator diaphragm provided inside the inlet casing. The stator diaphragm has an integral inner stator shroud and an outer stator shroud and a plurality of stator vanes provided in a circumferential arrangement between the inner stator shroud and the outer stator shroud. A plurality of key slots is provided in a circumferential arrangement on the stator diaphragm and a corresponding plurality of key slots is provided in a circumferential arrangement on the inlet casing. The key slots provided on the stator diaphragm are aligned with the plurality of key slots provided on the inlet casing. A key is inserted into each of the plurality of key slots provided to prevent rotation of the stator diaphragm with respect to the inlet casing. The stator diaphragm is secured in an axial direction by a stator shear ring.
    • 燃气轮机装置包括入口壳体和设置在入口壳体内部的定子膜片。 定子膜片具有整体的内部定子护罩和外部定子护罩以及设置在内部定子护罩和外部定子护罩之间的周向布置的多个定子叶片。 多个键槽设置在定子隔膜上的周向布置中,并且相应的多个键槽以周向布置设置在入口壳体上。 设置在定子膜片上的键槽与设置在入口壳体上的多个键槽对准。 将多个键槽中的每一个插入钥匙以防止定子隔膜相对于入口壳体旋转。 定子隔膜通过定子剪切环沿轴向固定。
    • 8. 发明申请
    • EXPANDING SEALING STRIPS FOR STEAM TURBINES
    • 扩大蒸汽轮胎密封条
    • WO2005024186A1
    • 2005-03-17
    • PCT/US2004/028773
    • 2004-09-03
    • GENERAL ELECTRIC COMPANYPARRY, William, Thomas
    • PARRY, William, Thomas
    • F01D11/02
    • F01D11/025F01D11/18F05D2220/31F05D2240/56F05D2300/50212
    • A turbine (10) includes, in an exemplary embodiment, an outer housing (22), a turbine shaft (12) rotatably supported in the outer housing, and a plurality of turbine stages located along the turbine shaft. Each turbine stage includes a diaphragm (20) attached to the casing, a rotor (46) having a plurality of buckets (16) and a bucket cover (52) fixedly attached to the turbine shaft, and a packing ring (54) mounted in a first circumferentially extending groove (56) in said diaphragm. The packing ring includes a seal shroud (58) and a sealing means (60) and is positioned adjacent the turbine shaft. The seal shroud is fabricated from a first material having a first coefficient of expansion, and the is diaphragm fabricated from a second material having a second coefficient of expansion. The first and second materials are selected so that at a first temperature a gap between the turbine shaft and the diaphragm is larger than at a second higher temperature.
    • 涡轮(10)在一个示例性实施例中包括外壳(22),可旋转地支撑在外壳中的涡轮轴(12)和沿涡轮轴定位的多个涡轮级。 每个涡轮级包括附接到壳体的隔膜(20),具有多个铲斗(16)的转子(46)和固定地连接到涡轮轴的铲斗盖(52),以及安装在 所述隔膜中的第一周向延伸槽(56)。 密封环包括密封罩(58)和密封装置(60)并且邻近涡轮机轴定位。 密封罩由具有第一膨胀系数的第一材料制成,并且是由具有第二膨胀系数的第二材料制成的隔膜。 选择第一和第二材料使得在第一温度下,涡轮轴和隔膜之间的间隙大于在第二较高温度下的间隙。