发明申请
US20110217181A1 GAS TURBINE BLADE, MANUFACTURING METHOD THEREFOR, AND GAS TURBINE USING TURBINE BLADE
有权
气体涡轮叶片,其制造方法和使用涡轮叶片的气体涡轮机
- 专利标题: GAS TURBINE BLADE, MANUFACTURING METHOD THEREFOR, AND GAS TURBINE USING TURBINE BLADE
- 专利标题(中): 气体涡轮叶片,其制造方法和使用涡轮叶片的气体涡轮机
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申请号: US13093437申请日: 2011-04-25
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公开(公告)号: US20110217181A1公开(公告)日: 2011-09-08
- 发明人: Satoshi Hada , Takahiko Imada , Tomofumi Shintani , Katsutoshi Ooe , Norifumi Hirata , Hiroshi Asano
- 申请人: Satoshi Hada , Takahiko Imada , Tomofumi Shintani , Katsutoshi Ooe , Norifumi Hirata , Hiroshi Asano
- 申请人地址: JP Tokyo
- 专利权人: MITSUBISHI HEAVY INDUSTRIES, LTD.
- 当前专利权人: MITSUBISHI HEAVY INDUSTRIES, LTD.
- 当前专利权人地址: JP Tokyo
- 优先权: JP2010-046687 20100303
- 主分类号: F01D5/18
- IPC分类号: F01D5/18 ; B23P15/02
摘要:
Provided are gas turbine blades in which it is possible to simplify the formation of cooling channels provided inside the turbine blades while simultaneously avoiding loss of turbine blade strength and rigidity due to forming of the cooling channels. In a gas turbine blade (41), cooling channels (410) provided in the interior thereof include a plurality of straight channel-like base-side elongated holes (401a) that extend in a longitudinal direction at a base side of the turbine blade (41), a plurality of straight channel-like tip-side elongated holes (410b) that extend in a longitudinal direction at a tip side of the turbine blade (41), and a plurality of communicating hollow portions (410c) that are interposed at connection portions between the two types of elongated holes (410a, 410b) to individually allow the two types of elongated holes (410a, 410b) to communicate with each other and that have larger cross-sectional areas than the channel cross-sectional areas of both elongated holes (410a, 410b). In addition, the communicating hollow portions (410c) are formed so as to match the position of a platform portion (413) of the turbine blade (41).