发明申请
- 专利标题： STEAM TURBINE AND STEAM TURBINE BLADE
- 专利标题（中）： 蒸汽涡轮机和蒸汽涡轮叶片
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申请号： US12977548申请日： 2010-12-23
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公开(公告)号： US20110150641A1公开(公告)日： 2011-06-23
- 发明人: Akio SAYANO , Masashi Takahashi , Masahiro Saito , Kazuyoshi Nakajima , Tadashi Tanuma , Satoru Asai , Kenji Kamimura
- 申请人： Akio SAYANO , Masashi Takahashi , Masahiro Saito , Kazuyoshi Nakajima , Tadashi Tanuma , Satoru Asai , Kenji Kamimura
- 申请人地址： JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JP Tokyo
- 优先权： JP2008-163209 20080623
- 主分类号： F01D9/02
- IPC分类号： F01D9/02
摘要：
A steam turbine 3 includes: a turbine rotor 4; a rotor blade 5 implanted to the turbine rotor 4; a stator blade 6 provided at an upstream side of the rotor blade 5; and a turbine casing 13 supporting the stator blade 6 and including the turbine rotor 4, the rotor blade 5 and the stator blade 6, and have a constitution in which a stage 7 is formed by a pair of the rotor blade 5 and the stator blade 6, and a steam passage 8 is formed by arranging plural stages 7 in an axial direction of the turbine rotor 4. A surface treatment to suppress an increase of a surface roughness caused by oxidation is performed for at least a part of a surface of the stator blade 6 and a surface of the rotor blade 5.
公开/授权文献
- US09309773B2 Steam turbine and steam turbine blade 公开/授权日：2016-04-12