[특허]Gas turbine engine case coated with thermal barrier coating to control axial airfoil clearance

Gas turbine engine case coated with thermal barrier coating to control axial airfoil clearance 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F01D-025/14
출원번호	US-0404230 (1995-03-15)
발명자 / 주소	Angus Todd James (Simsbury CT)
출원인 / 주소	United Technologies Corporation (Hartford CT 02)
인용정보	피인용 횟수 : 29 인용 특허 : 0

초록 ▼

An engine case of a gas turbine engine is selectively coated with a thermal barrier coating to control axial clearance between rotating and stationary airfoils. The coating is applied to the thinner portions of the engine case to retard thermal expansion of these portions of the engine case during transient conditions of the gas turbine engine operation. The selectively coated engine case responds substantially uniformly to heating and thermal expansion during transient conditions, thereby reducing axial vane lean in gas turbine engines.

대표청구항 ▼

A gas turbine engine including a compressor, a combustor, and a turbine, said gas turbine engine being enclosed in an engine case, said casing including a forward attachment point and a rear attachment point, said compressor and said turbine including alternating rows of stationary vanes and rotating blades, said rotating blades being secured within a rotating disk, said vanes being mounted onto said engine case by attachment at said forward and rear attachment points, said forward attachment point having more mass and being thicker than said rear attachment point, said rear attachment point having an inner rail surface for abutment with said vanes, and an outer rail surface comprising the inner surface of said casing immediately adjacent said inner rail surface, said gas turbine engine characterized by: a thermal barrier coating being applied onto said outer rail surface and having a limited axial extent and extending fully circumferentially, said inner rail surface remaining free of coating whereby tilting of said vanes around said attachment point is minimized to maintain axial spacing between said rotating blades and said stator vanes.

이 특허를 인용한 특허 (29)

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Freling Melvin ; Gupta Dinesh K. ; Lagueux Ken ; DeMasi-Marcin Jeanine T., Columnar zirconium oxide abrasive coating for a gas turbine engine seal system.
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Lee Ching-Pang, Cooled turbine blade platform.
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Strock, Christopher W.; Zajchowski, Paul H., Friable ceramic rotor shaft abrasive coating.
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Ford, Cody Jermaine; VanTassel, Brad Wilson, Gas turbine components having non-uniformly applied coating and methods of assembling the same.
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Jones, Alan R, Gas turbine engine and a rotor for a gas turbine engine.
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Rose, William M., Gas turbine engine case with replaced flange and method of repairing the same using cold metal transfer.
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Dodd Alec G,GBX, Gas turbine engine casing.
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Strock, Christopher W., Low density abradable coating with fine porosity.
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Griffin, Timothy R.; Gilarranz, Jose L., Method for on-line detection of liquid and potential for the occurrence of resistance to ground faults in active magnetic bearing systems.
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Gilarranz, Jose L.; Griffin, Timothy R., Method for on-line detection of resistance-to-ground faults in active magnetic bearing systems.
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Hasselberg, Timothy P.; Rose, William M.; Rutz, David A., Method for repairing a gas turbine engine component.
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Mase, Frank W.; Strock, Christopher W, Method of spraying a turbine engine component.
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Harris,Daniel John, Methods and apparatus for maintaining rotor assembly tip clearances.
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Bunting, Billie W., Repaired internal holding structures for gas turbine engine cases and method of repairing the same.
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Guo, Changsheng; Strock, Christopher W.; Stowe, Thomas W.; Baumann, Paul W., Rough dense ceramic sealing surface in turbomachines.
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Maier, Martin D.; Kidd, H. Allan, Segmented coast-down bearing for magnetic bearing systems.
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Willett, Jr., Fred Thomas; Montgomery, Michael Earl; Eisenzopf, Peter John; Miller, Richard James, Stator seal for turbine rub avoidance.
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Schmitz, Friedhelm; Wieghardt, Kai, Use of a thermal barrier coating for a housing of a steam turbine, and a steam turbine.
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Schmitz, Friedhelm; Wieghardt, Kai, Use of a thermal barrier coating for a housing of a steam turbine, and a steam turbine.
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Schmitz, Friedhelm; Wieghardt, Kai, Use of a thermal barrier coating for a housing of a steam turbine, and a steam turbine.
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Maier, Martin D.; Kidd, H. Allan, Whirl inhibiting coast-down bearing for magnetic bearing systems.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Gas turbine engine case coated with thermal barrier coating to control axial airfoil clearance 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (29)

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Gas turbine engine case coated with thermal barrier coating to control axial airfoil clearance 원문보기

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연구과제 타임라인

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