发明名称 |
Supplemental seal for the chordal hinge seals in a gas turbine |
摘要 |
In a gas turbine having a chordal hinge seal between an inner rail of each nozzle segment and an annular axially facing sealing surface of a nozzle support ring, a supplemental seal is disposed between the support ring and inner rail of the nozzle segment. The supplemental seal is formed of a preloaded flexible sheet metal seal having a first margin secured in a linear groove extending in a tangential direction along the inner rail of the nozzle segments with a bent-over edge to form a seal therewith. The opposite second margin has an edge which bears against the axially opposed sealing surface of the nozzle support ring. Sealing pressure against the preloaded flexible seal from a high pressure region maintains the seal between the sealing surfaces of the support ring and segments. The supplemental seal extends tangentially and end edges thereof overlap one another to form a seal between adjacent nozzle segments.
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申请公布号 |
US6572331(B1) |
申请公布日期 |
2003.06.03 |
申请号 |
US20010029228 |
申请日期 |
2001.12.28 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
MOHAMMED-FAKIR ABDUL-AZEEZ;AKSIT MAHMUT FARUK;SAFI AHMAD;VEDANTAM SRIKANTH;FANG NING |
分类号 |
F01D11/00;F16J15/08;(IPC1-7):F01D9/04 |
主分类号 |
F01D11/00 |
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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