发明名称 |
SYSTEMS RELATING TO AXIAL POSITIONING TURBINE CASINGS AND BLADE TIP CLEARANCE IN GAS TURBINE ENGINES |
摘要 |
A gas turbine engine that includes: a flowpath defined through one of a compressor and a turbine; an inner casing defining an axially tilted outboard boundary of the flowpath, which, relative to the axial tilt, defines a converging direction in which the flowpath converges and a diverging direction in which the flowpath diverges; a row of rotor blades having outer tips that oppose the outboard boundary across a gap clearance defined therebetween; an outer casing concentrically arranged about the inner casing so to form an annulus therebetween; and a connection assembly that slidably connects the inner casing to the outer casing and includes a biasing means for axially preloading the inner casing in the converging direction. |
申请公布号 |
US2015037145(A1) |
申请公布日期 |
2015.02.05 |
申请号 |
US201313955647 |
申请日期 |
2013.07.31 |
申请人 |
General Electric Company |
发明人 |
Casavant Matthew Stephen;Black Kenneth Damon;Cox Christopher Paul |
分类号 |
F01D11/16 |
主分类号 |
F01D11/16 |
代理机构 |
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代理人 |
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主权项 |
1. A gas turbine engine comprising:
a flowpath defined through one of a compressor and a turbine; an inner casing defining an axially tilted outboard boundary of the flowpath, which, relative to the axial tilt, defines a converging direction in which the flowpath converges and a diverging direction in which the flowpath diverges; a row of rotor blades having outer tips that oppose the outboard boundary across a gap clearance defined therebetween; an outer casing concentrically arranged about the inner casing so to form an annulus therebetween; and a connection assembly that slidably connects the inner casing to the outer casing for axial movement; wherein the connection assembly includes mechanical biasing means for axially preloading the inner casing in the converging direction. |
地址 |
Schenectady NY US |