[특허]Removable fan shroud panel

Removable fan shroud panel 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F01D-025/00
출원번호	US-0976235 (1992-11-13)
발명자 / 주소	Lenhart Kenneth J. (Cincinnati OH) Chouinard Brett R. (Springdale OH) Tegarden Frederick W. (Glendale OH)
출원인 / 주소	General Electric Company (Cincinnati OH 02)
인용정보	피인용 횟수 : 23 인용 특허 : 0

초록 ▼

A shroud panel is removably joinable inwardly of a fan casing and outwardly of a fan blade in a turbofan gas turbine engine. The panel includes an arcuate backing plate having a plurality of screws disposed therethrough for mounting the panel to the casing. Each of the screws includes a locking ring joined to the shank thereof and spaced from the screw head for allowing limited translation of the screw through the panel while preventing its liberation therefrom.

대표청구항 ▼

A shroud panel assembly comprising: an annular fan casing disposed radially outwardly of a fan blade in a turbofan gas turbine engine; a forward J-shaped support ring having a proximal end fixedly joined to said fan casing, and a distal end spaced radially inwardly from said fan casing; an aft J-shaped support ring having a proximal end fixedly joined to said fan casing downstream of said forward ring, and having a distal end spaced radially inwardly from said fan casing; a shroud panel removably joinable radially inwardly of, and to, said annular fan casing and radially outwardly of said fan blade comprising: an arcuate backing plate having axially spaced apart forward and aft opposite ends and radially spaced apart outer and inner surfaces defining a panel thickness therebetween, each of said plate ends having a plurality of circumferentially spaced apart panel apertures extending therethrough from said outer to inner surfaces; a plurality of screws disposed through respective ones of said panel apertures along said plate forward and aft ends, each screw including an enlarged head disposed adjacent said plate inner surface, an integral shank extending through said panel aperture, and an integral threaded distal end disposed adjacent said plate outer surface for threadingly joining said panel to said forward and aft support rings; and a plurality of enlarged locking rings each fixedly joined to a respective one of said screw shanks and sized greater than said panel aperture, said locking ring being spaced from said screw head at a longitudinal spacing greater than said panel thickness for allowing limited translation of said screw through said panel aperture as either said screw head contacts said panel inner surface or said locking ring contacts said panel outer surface for preventing disassembly of said screw from said panel; said distal ends of said forward and aft rings having access apertures receiving therethrough said threaded end and locking ring of respective panel screws; a plurality of captured nuts disposed on radially outer surfaces of said forward and aft ring distal ends, each of said nuts including a proximal end fixedly joined to respective ones of said ring distal ends, and a central bore having a diameter greater than said locking ring for allowing unobstructed translation of said locking ring therein, each of said nuts further including a threaded distal end threadingly receiving a respective one of said panel screw threaded ends; and said panel screw threaded end being disposed at a first height from said locking ring, said nut threaded distal end being disposed at a second height from said panel outer surface at said panel aperture, and said second height being greater than said first height.

이 특허를 인용한 특허 (23)

Lussier, Darin S.; Robertson, Thomas J., Attachment of threaded holes to composite fan case.
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Humphries, Neil, Casing assembly.
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Lussier, Darin S.; Robertson, Jr., Thomas J.; Costa, Mark W.; Voleti, Sreenivasa R.; Naik, Rajiv A., Composite fan containment case assembly.
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Bottome, Kristofer John, Containment casing for an aero engine.
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Porte, Alain; Fargues, Matthieu; Lalane, Jacques, Device for connecting an air inlet with an aircraft nacelle actuator assembly.
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Pool, Clare L.; Udall, Kenneth F.; Stretton, Richard G.; Reed, Julian M., Duct wall for a fan of a gas turbine engine.
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Cardarella, Jr., L. James, Fan case reinforcement in a gas turbine jet engine.
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Cardarella, Jr., L. James, Fan case reinforcement in a gas turbine jet engine.
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Allen Jeffrey S. ; Breeze-Stringfellow Andrew ; Manharth Gary B., Fan containment structure having contoured shroud for optimized tip clearance.
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Totten, Trevor John; Rivers, Jonathan Michael; Engebretsen, Eric William; Kappes, Matthew Joseph, Fan track liner designed to yield next to fan case hook.
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Evans, Dale Edward; Drozdz, Mickael; Christmas, David Laker, Gas turbine engine.
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Reed, Julian Mark, Gas turbine engine.
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Sathianathan, Sivasubramaniam K; Booth, Stephen J; Martindale, Ian G, Gas turbine engine blade containment assembly.
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Stephen J Booth GB, Gas turbine engine blade containment assembly.
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Mahan, Vance A., Gas turbine engine containment device.
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Ernst Peter,CHX ; Faller Kurt,CHX ; Fried Reinhard,CHX, Guide blade for steam turbines.
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Heeter, Robert Warren; Unton, Timothy John; Engebretsen, Eric; Rivers, Jonathan, Liner system.
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Cardarella, Jr., Louis James, Method and apparatus for improving fan case containment and heat resistance in a gas turbine jet engine.
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Maier, Alexander George; Maskiell, William Ralph, Methods and apparatus for assembling turbine engines.
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Roberts, III, Herbert Chidsey; Bruce, Kevin Leon; Blow, Gerald Kent; Cairo, Ronald Ralph, Methods and apparatus for assembling turbine engines.
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Mahmut Faruk Aksit ; Raymond Edward Chupp ; Osman Saim Dinc, Rotary machine having a seal assembly.
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Harper,Cedric Brett; Martindale,Ian Graham, Rotor blade containment assembly for a gas turbine engine.
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Kurokawa, Junichi; Kimura, Hitoharu; Okamura, Tomoyshi; Nagahara, Takahide; Sudo, Sumio; Manabe, Akira; Kuwabara, Norimitsu, Turbo machines.
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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

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Removable fan shroud panel 원문보기

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Removable fan shroud panel 원문보기

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연구과제 타임라인

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이 특허를 인용한 특허 (23)

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