发明名称 |
Turbine stage shroud segment |
摘要 |
<p>A shroud segment for a turbine stage of a gas turbine engine forms an endwall for the working gas annulus of the stage. The segment also provides a close clearance to the tips of a row of turbine blades which sweep across the segment. In use a leakage flow of the working gas passes through the clearance gap between the blade tips and the segment. The segment has a plurality of cooling holes and respective air feed passages for the cooling holes. The cooling holes are distributed over that part of the gas-washed surface of the segment which is swept by the blade tips. The cooling holes deliver, in use, cooling air which spreads over the gas-washed surface. The feed passages are configured such that the delivered air opposes the leakage flow of the working gas.</p> |
申请公布号 |
EP2412934(A2) |
申请公布日期 |
2012.02.01 |
申请号 |
EP20110172840 |
申请日期 |
2011.07.06 |
申请人 |
ROLLS-ROYCE PLC |
发明人 |
TIBBOTT, IAN;IRELAND, PETER;RAWLINSON, ANTHONY JOHN;TURNER, LYNNE HELEN |
分类号 |
F01D11/08;F01D11/10;F01D25/12 |
主分类号 |
F01D11/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|