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    • 4. 发明申请
    • Gas turbine rotor blade, gas turbine using the rotor blade, and power plant using the gas turbine
    • 燃气轮机转子叶片,使用转子叶片的燃气轮机,以及使用燃气轮机的发电厂
    • US20070065283A1
    • 2007-03-22
    • US11433497
    • 2006-05-15
    • Masaru SekiharaYasushi HayasakaKunihiro Ichikawa
    • Masaru SekiharaYasushi HayasakaKunihiro Ichikawa
    • F01D5/18
    • F01D5/225F01D5/3007
    • A gas turbine rotor blade capable of effectively reducing creep damage by forming a cooling through hole to cool a target area in which significant creep damage of a shroud cover is predicted based on analysis of stress and temperature acting on the gas turbine rotor blade. A gas turbine using the rotor blade, and a power plant using the gas turbine are also provided. The gas turbine rotor blade includes a blade section provided with a shroud cover at an outer peripheral end thereof, and a platform, a shank and a dovetail which are formed in integral structure to successively continue from the blade section. An inner cooling hole is formed to penetrate through the gas turbine rotor blade from the dovetail to the shroud cover. The shroud cover has a cooling through hole formed to open in an outer surface of the shroud cover and extend in communication with the inner cooling hole.
    • 一种燃气轮机转子叶片,其能够通过形成冷却通孔来冷却目标区域,从而通过基于作用在燃气轮机转子叶片上的应力和温度的分析来预测护罩盖的显着的蠕变损伤,来有效地减少蠕变损伤。 还提供了使用转子叶片的燃气轮机和使用燃气轮机的动力装置。 燃气轮机转子叶片包括在其外周端处设置有护罩盖的叶片部分,以及形成为一体结构的平台,柄部和燕尾榫,从叶片部分连续延伸。 形成内部冷却孔,以从燕尾槽穿过燃气轮机转子叶片到罩盖。 护罩罩具有形成为在护罩罩的外表面上开口并与内部冷却孔连通延伸的冷却通孔。
    • 9. 发明授权
    • Repair method for a gas turbine
    • 燃气轮机的修理方法
    • US06546627B1
    • 2003-04-15
    • US09824641
    • 2001-04-04
    • Masaru SekiharaShigeo Sakurai
    • Masaru SekiharaShigeo Sakurai
    • B23P600
    • B23P6/005F01D9/023F05D2250/231F23R3/00F23R3/06Y10T29/49318Y10T29/49323Y10T29/4973
    • A gas turbine has a compressor for compressing air as a working fluid, a combustor for producing combustion gas by mixing fuel with the compressed air, and a turbine for generating a rotating force at the time of expansion of combustion gas. The gas turbine further includes a cylindrical liner; a transition piece for transferring the working fluid from the liner to the turbine; an outlet portion of the transition piece, which has a region parallel with a direction of a rotating shaft of the turbine; cooling holes formed in the region so that longitudinal intervals thereof are lengthened; and a picture frame portion provided to secure stiffness at an outlet of the outlet portion.
    • 燃气轮机具有用于压缩空气作为工作流体的压缩机,用于通过将燃料与压缩空气混合来产生燃烧气体的燃烧器,以及用于在燃烧气体膨胀时产生旋转力的涡轮机。 燃气轮机还包括圆柱形衬套; 用于将工作流体从衬套转移到涡轮机的过渡件; 所述过渡件的出口部分具有与所述涡轮机的旋转轴的方向平行的区域; 在该区域中形成的冷却孔使得其纵向间隔被延长; 以及设置用于确保出口部分的出口处的刚度的相框部分。
    • 10. 发明授权
    • Coolant recovery type gas turbine
    • 冷却液回收式燃气轮机
    • US06393829B2
    • 2002-05-28
    • US09308981
    • 1999-05-28
    • Shinya MarushimaManabu MatsumotoKazuhiko KawaikeTakashi IkeguchiTakashi MachidaMasaru Sekihara
    • Shinya MarushimaManabu MatsumotoKazuhiko KawaikeTakashi IkeguchiTakashi MachidaMasaru Sekihara
    • F02C300
    • F02C7/18F01D25/12F05D2260/205F05D2260/2322
    • A gas turbine has a rotor shaft which includes a plurality of discs, each having a plurality of moving blades driven by combustion gas and arranged annularly on the peripheral portion and having spaces arranged between the discs. The respective discs and spacers are arranged in the axial direction. Gap portions are formed between the rotor axis side regions of the discs facing the spacers and adjacent spacers. Contact surfaces contacting each other on both rotor peripheral side regions of the discs facing the spaces and adjacent spacers are formed. A first flow path for supplying a coolant into the moving blades and a second flow path for recovering the coolant heated by the moving blades from the moving blade are provided. A third flow path for introducing fluid into the gap portions is formed in the discs with the third flow path being independent from the first and second flow paths.
    • 燃气轮机具有转子轴,该转子轴包括多个盘,每个盘具有由燃烧气体驱动的多个活动叶片,环形地布置在周边部分上,并且在盘之间具有间隔。 相应的盘和间隔件沿轴向布置。 间隙部分形成在面向间隔物和相邻间隔物的盘的转子轴线侧区域之间。 形成面对空间和相邻间隔物的圆盘的两个转子周边区域彼此接触的接触表面。 提供了用于将冷却剂供应到动叶片中的第一流动路径和用于从动叶片回收由移动叶片加热的冷却剂的第二流路。 用于将流体引入间隙部分的第三流动路径形成在盘中,其中第三流动路径独立于第一和第二流动路径。