发明名称 |
Dovetail for steam turbine rotating blade and rotor wheel |
摘要 |
A dovetail for a steam turbine rotating blade and rotor wheel is provided. The dovetail design comprises a rotating blade curved axial entry dovetail having a four hook profile and a rotor wheel dovetail slot sized to receive the blade dovetail. The blade dovetail and wheel dovetail slot each comprise a plurality of slanted crush surfaces, a plurality of non-contact surfaces, and a plurality of necks that each provide a transition between a slanted crush surface to a non-contact surface. Each neck comprises a slant angle defined by the transition of the slanted crush surface to the non-contact surface. The slant angle ranges from about 60 degrees to about 82 degrees. |
申请公布号 |
US8210822(B2) |
申请公布日期 |
2012.07.03 |
申请号 |
US20080205939 |
申请日期 |
2008.09.08 |
申请人 |
DEMANIA ALAN RICHARD;DELESSIO STEVEN MICHAEL;GENERAL ELECTRIC COMPANY |
发明人 |
DEMANIA ALAN RICHARD;DELESSIO STEVEN MICHAEL |
分类号 |
B64C11/04 |
主分类号 |
B64C11/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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