发明授权
- 专利标题： Gas turbine blade with intra-span snubber
- 专利标题（中）： 带跨度缓冲器的燃气轮机叶片
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申请号： US12848456申请日： 2010-08-02
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公开(公告)号： US08790082B2公开(公告)日： 2014-07-29
- 发明人: Gary B. Merrill , Clinton Mayer
- 申请人： Gary B. Merrill , Clinton Mayer
- 申请人地址： US FL Orlando
- 专利权人： Siemens Energy, Inc.
- 当前专利权人： Siemens Energy, Inc.
- 当前专利权人地址： US FL Orlando
- 主分类号： F01D5/22
- IPC分类号： F01D5/22
摘要：
A gas turbine blade (10) including a hollow mid-span snubber (16). The snubber is affixed to the airfoil portion (14) of the blade by a fastener (20) passing through an opening (24) cast into the surface (22) of the blade. The opening is defined during an investment casting process by a ceramic pedestal (38) which is positioned between a ceramic core (32) and a surrounding ceramic casting shell (48). The pedestal provides mechanical support for the ceramic core during both wax and molten metal injection steps of the investment casting process.
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