发明名称 |
BOLTED JOINT FOR ROTOR DISKS AND METHOD OF REDUCING THERMAL GRADIENTS THEREIN |
摘要 |
Rotor disk stress is reduced in a bolted joint (52) for connecting adjacent rotor disks in a gas turbine engine (10). The bolted joint (52) includes a bolt hole (70) formed in the first rotor disk (40) and a tube (82) disposed in the bolt hole (70) such th at a channel (84) is defined between the tube (82) and the bolt hole (70). A bolt (66) is disposed in the tube (82) such that a gap (88) is defined between the bolt (66) and the tube (82). The gap (88) thermally insulates the bolt (66) from hot fluid in the channel (84). A first passage (96) provides fluid communication between the channel (84) and a forward cavity, and a second passage (98) provides fluid communication betwe en the channel (84) and an aft cavity. Hot fluid passing through the channel (84) reduces thermal gradients in the first rotor disk (40). The tube (82) thermally shields the bolt (66) from the hot fluid to minimize differential thermal growth.
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申请公布号 |
CA2364768(C) |
申请公布日期 |
2007.09.11 |
申请号 |
CA20012364768 |
申请日期 |
2001.12.13 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
EBERT, TODD ALAN;PEPI, JASON FRANCIS |
分类号 |
F02C7/00;F01D5/06;F01D5/08;F01D25/00;F16B35/00;F16B37/00 |
主分类号 |
F02C7/00 |
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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