发明名称 |
Hole liners for repair of variable vane shroud counterbore holes |
摘要 |
<p>A variable vane shroud (36) for a gas turbine engine (10) comprises a cylindrically shaped body, a hole (55B) arranged at a circumference of the body, and a counterbore (56B) arranged concentrically around the hole on a radially inward facing surface of the body. The hole (55B) is for receiving a trunnion (43) from a variable vane (32B) and the counterbore is for receiving a hub (45) from the variable vane (32B). A liner (52) is inserted into the hole (55B) and counterbore (56B) such that the trunnion (43) and hub (45) are provided with a contact surface. The invention also provides a method for repairing a damaged counterbore (54B) in a variable vane shroud (36). A liner (52) having a shape corresponding to a layer of material removed from the shroud is inserted into the void left by removing damaged material such that the counterbore is restored to pre-damaged dimensions.</p> |
申请公布号 |
EP1959094(A2) |
申请公布日期 |
2008.08.20 |
申请号 |
EP20080250529 |
申请日期 |
2008.02.13 |
申请人 |
UNITED TECHNOLOGIES CORPORATION |
发明人 |
ADDIS, MARK E. |
分类号 |
B23P6/00;F01D17/16;F04D29/52;F04D29/54 |
主分类号 |
B23P6/00 |
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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