发明名称 |
COOLING CIRCUIT FOR STEAM AND AIR-COOLED TURBINE NOZZLE STAGE |
摘要 |
The turbine vane segment includes inner and outer walls with a vane extending therebetween. The vane includes leading and trailing edge cavities and intermediate cavities. An impingement plate is spaced from the outer wall to impingement-cool the outer wall. Post-impingement cooling air flows through holes in the outer wall to form a thin air-cooling film along the outer wall. Cooling air is supplied an insert sleeve with openings in the leading edge cavity for impingement-cooling the leading edge. Holes through the leading edge afford thin-film cooling about the leading edge. Cooling air is provided the trailing edge cavity and passes through holes in the side walls of the vane for thin-film cooling of the trailing edge. Steam flows through a pair of intermediate cavities for impingement-cooling of the side walls. Post-impingement steam flows to the inner wall for impingement-cooling of the inner wall and returns the post-impingement cooling steam through inserts in other intermediate cavities for impingement-cooling the side walls of the vane.
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申请公布号 |
US2002037217(A1) |
申请公布日期 |
2002.03.28 |
申请号 |
US19990307719 |
申请日期 |
1999.05.10 |
申请人 |
ITZEL GARY MICHAEL;YU YUFENG |
发明人 |
ITZEL GARY MICHAEL;YU YUFENG |
分类号 |
F01D9/02;F01D5/18;F01D9/04;(IPC1-7):F01D5/14 |
主分类号 |
F01D9/02 |
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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