发明名称 |
Blade outer air seal and repair method |
摘要 |
<p>A blade outer air seal (BOAS) segment for a gas turbine engine is disclosed wherein the formation of cracks due to thermal mechanical fatigue in the body of the disclosed BOAS segment is minimized, if not eliminated, through a unique construction of the disclosed BOAS segment, whether original equipment manufacture or a repaired BOAS. The segment (44) has a body (50) formed in part of a first metal alloy and in part of a second metal alloy, the second metal alloy having a thermal coefficient of expansion that is less than the thermal coefficient of expansion of the first metal alloy. A method for manufacture of a BOAS segment and a method for modifying a BOAS segment are also disclosed.</p> |
申请公布号 |
EP2412932(A2) |
申请公布日期 |
2012.02.01 |
申请号 |
EP20110250673 |
申请日期 |
2011.07.25 |
申请人 |
UNITED TECHNOLOGIES CORPORATION |
发明人 |
BELANGER, PHILIP R.;THOLEN, SUSAN M. |
分类号 |
F01D9/04;F01D11/08;F01D11/12 |
主分类号 |
F01D9/04 |
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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