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    • 88. 发明专利
    • Clearance control of turbine rotor blade tip and shroud
    • 涡轮转子叶片尖端和裂缝的间隙控制
    • JP2011094615A
    • 2011-05-12
    • JP2010236942
    • 2010-10-22
    • General Electric Co ゼネラル・エレクトリック・カンパニイGeneral Electric Company
    • ZHANG HUALIU YANG
    • F02C7/28F01D11/08F02C7/18
    • F01D11/18F02C7/12F05D2260/208F05D2260/213
    • PROBLEM TO BE SOLVED: To reduce a variation in a clearance in the radial direction between the turbine blade tip and a shroud, while reducing or eliminating use of compressor air or power generation plant steam. SOLUTION: A gas turbine engine includes a turbine shell constituted so as to hold a turbine rotor shroud adjacently to a turbine rotor blade. A heat pipe has a first end part thermally communicated with a turbine shell and a second end part extending in the outward direction of a shell. A heating-cooling system has a heating medium thermally communicated with the second end part of the heat pipe and able to be constituted so as to exchange heat energy with the second end part of the heat pipe. The heating medium can be constituted so as to remove the heat energy from the turbine shell by removing the heat energy from the second end part of the heat pipe, and can also be constituted so as to add the heat energy to the turbine shell by adding the heat energy to the second end part of the heat pipe. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了减少或消除使用压缩机空气或发电厂蒸汽,减少涡轮叶片尖端和护罩之间的径向间隙的变化。 解决方案:燃气涡轮发动机包括涡轮壳体,涡轮壳体构造成将涡轮转子罩保持在与涡轮转子叶片相邻的位置。 热管具有与涡轮壳体热连通的第一端部部分和沿壳体向外延伸的第二端部部分。 加热冷却系统具有与热管的第二端部热连通的加热介质,并且能够与热管的第二端部交换热能。 加热介质可以构成为通过从热管的第二端部去除热能来除去来自涡轮壳体的热能,并且还可以构成为通过添加热能来将热能添加到涡轮壳体 热能到热管的第二端部分。 版权所有(C)2011,JPO&INPIT
    • 90. 发明专利
    • Thermally-activated clearance reduction for steam turbine
    • 用于蒸汽涡轮机的热激活间隙减少
    • JP2010106834A
    • 2010-05-13
    • JP2009246001
    • 2009-10-27
    • General Electric Co ゼネラル・エレクトリック・カンパニイGeneral Electric Company
    • WILLETT JR FRED THOMAS
    • F01D11/08F01D11/02F01D25/00F16J15/453
    • F01D11/18F01D5/225F01D11/025F05D2220/31F05D2300/50212F05D2300/505
    • PROBLEM TO BE SOLVED: To solve the problems wherein the clearance of labyrinth seal teeth often used for a seal between a rotary component and a stationary component of a steam turbine badly affects a seal, and a mechanism is required for closing a steam leakage path by a seal activated through a temperature difference when the steam turbine shifts from a stop state to a steady state. SOLUTION: A thermally-activated flow path clearance seal applied to the steam turbine is activated by temperature difference and seals or reduces the radial clearance of a steam flow path between the rotary component and the stationary component. When the temperature of the steam turbine reaches a steady state, a thermally-activated actuator 235 moves a piston 220 from a diaphragm outer ring 210 toward the seal teeth 205 of a bucket cover 200 according to temperature difference of the diaphragm outer ring 210. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了解决通常用于蒸汽轮机的旋转部件和固定部件之间的密封件的迷宫式密封齿的间隙严重影响密封件的问题,并且需要用于关闭蒸汽的机构 当蒸汽轮机从停止状态转移到稳定状态时,通过温度差激活的密封件的泄漏路径。 解决方案:施加到蒸汽轮机上的热激活流道间隙密封件由温差激活,并且密封或减小旋转部件和固定部件之间的蒸汽流动路径的径向间隙。 当蒸汽轮机的温度达到稳定状态时,热活化致动器235根据隔膜外圈210的温度差将活塞220从隔膜外环210移动到桶盖200的密封齿205。 P>版权所有(C)2010,JPO&INPIT