发明公开
EP0475428A1 Gas turbine, gas turbine blade used therefor and manufacturing method for gas turbine blade
失效
用于该燃气轮机和用于制备这些叶片工艺燃气涡轮叶片。
- 专利标题： Gas turbine, gas turbine blade used therefor and manufacturing method for gas turbine blade
- 专利标题（中）： 用于该燃气轮机和用于制备这些叶片工艺燃气涡轮叶片。
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申请号： EP91115542.2申请日： 1991-09-13
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公开(公告)号： EP0475428A1公开(公告)日： 1992-03-18
- 发明人: Yoshinari, Akira , Saito, Tosiaki , Iijima, Katsumi , Ishida, Tadami , Hashida, Ryozo , Kano, Kimio
- 申请人： HITACHI, LTD. , TOHOKU ELECTRIC POWER CO., INC.
- 申请人地址： 6, Kanda Surugadai 4-chome Chiyoda-ku, Tokyo 101 JP
- 专利权人： HITACHI, LTD.,TOHOKU ELECTRIC POWER CO., INC.
- 当前专利权人： HITACHI, LTD.,TOHOKU ELECTRIC POWER CO., INC.
- 当前专利权人地址： 6, Kanda Surugadai 4-chome Chiyoda-ku, Tokyo 101 JP
- 代理机构： Patentanwälte Beetz - Timpe - Siegfried Schmitt-Fumian - Mayr
- 优先权： JP245210/90 19900914
- 主分类号： F01D5/28
- IPC分类号： F01D5/28
摘要：
A heavy-duty gas turbine includes a compressor; a combustion liner; a turbine blade (7) in a single stage or multi-stages; and a turbine nozzle provided in correspondence to the turbine blade (7). The turbine blade (7) has a dovetail (10) secured to a turbine disk and has an overall length of not less than 180 mm, and it is made of a single-crystal Ni-base alloy whose γ phase is a single crystal. Operating gas temperature is not less than 1400 C, and metal temperature of a first blade is not less than 1000 °C under working stress.
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