[특허]Compressor rotor cross shank leak seal for axial dovetails

Compressor rotor cross shank leak seal for axial dovetails 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16J-015/32 F01B-005/32
출원번호	US-0876602 (1992-04-30)
발명자 / 주소	Glynn Christopher C. (Hamilton OH) Walker Roger C. (Middletown OH)
출원인 / 주소	General Electric Company (Cincinnati OH 02)
인용정보	피인용 횟수 : 26 인용 특허 : 0

초록 ▼

A seal assembly for use in a compressor stage of a turbine engine having a rotor disk which is attached to a plurality of rotor blades. Each rotor blade has an axially oriented dovetail attachment which connects to the rotor disk. Each rotor blade has an aftward side which is in contact with a high pressure region and a forward side which is in contact with a low pressure region. A plurality of seal segments form an annular ring located radially inward from the plurality of rotor blades. Each seal segment has an offset center of gravity which causes each seal segment to be securely attached to the rotor disk as centrifugal forces act upon each seal segment during rotation.

대표청구항 ▼

A seal assembly for minimizing air leakage about a blade root region of rotor blades in a compressor stage of a gas turbine engine, the blade root region including a blade platform and a blade root, the blade root being axially inserted into slots in a rotor disk, the seal assembly comprising: a plurality of arcuately shaped plate-like members forming an annular ring, said ring having a radially outer edge held in sealing engagement with a surface of the platform of the rotor blade and a radially inner edge held in sealing engagement with a surface on the rotor disk, the seal assembly overlaying the blade roots and corresponding slots for minimizing air flow therethrough; a plurality of disk posts each extending radially outward between adjacent ones of the rotor slots of the rotor disk, each disk post having a tang extending therefrom for capturing a mating finger-like member on said seal assembly for holding said seal assembly in engagement with the blade root region; a circumferential groove defined between an edge of the rotor disk and a circumferential flange formed thereon, said radially inner edge being defined on a radially inner portion of said seal assembly, said inner portion being at least partially disposed in said groove when said seal assembly is in an assembled position, said inner edge contacting an axially forward surface of said flange for establishing a seal therebetween; each of said tangs depending radially inward and defining an annular slot between the tangs and an adjacent surface of the disk posts, each of the finger-like members extending radially outward from each said seal assembly and into said slot for retaining said seal assembly in an assembled position; and each plate-like member of said seal assembly having a center of gravity axially displaced from said finger-like members, rotation of the rotor disk being effective to exert a centrifugal force to drive said seal assembly radially outward wherein said finger-like members engage said tangs for creating a pivot point for rotation of said seal assembly, said displaced center of gravity creating a moment of rotation of each plate-like member of said seal assembly about a tangent line to said finger-like members in a direction to enhance said sealing engagement with each of said platform surface and said circumferential flange.

이 특허를 인용한 특허 (26)

Liotta, Gary C.; Ward, Jr., John D., Clamped plate seal.
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Race, Nathan Stafford; Potter, Brian Denver, Compressor fairing segment.
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Anderson, Rodger O.; Willett, Fred T., Compressor stator vane.
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Anderson,Rodger O.; Willett,Fred T., Compressor stator vane.
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Da Costa, Emmanuel; Gendraud, Alain Dominique; Martet, Renaud; Sicard, Josselin; Varin, Bruno Andre Jean, Cooling for the retaining dovetail of a turbomachine blade.
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Walunj, Jalindar Appa; Honkomp, Mark, Damper coverplate and sealing arrangement for turbine bucket shank.
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Dejaune, Claude Gerard Rene; Gros, Valerie Annie; Loro, Gael; Soupizon, Jean-Luc, Device for axially retaining blades mounted on a turbomachine rotor disk.
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Walunj, Jalindar Appa; Arness, Brian Peter; Honkomp, Mark Steven; Ellis, Scott Edmond; Shukla, Prashant; Kuruboor Veerabhadrappa, Narayayanaswamy, Flexible seal for turbine engine.
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Steven Sebastian Burdgick ; Brendan Francis Sexton, Leaf seal for gas turbine stator shrouds and a nozzle band.
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Seib, David C.; Kuzdzal, Mark Joseph, Low deflection bi-metal rotor seals.
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Bosco, Franck Emmanuel, Means for locking a sealing ring on a turbine disk.
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Ravi, Srinivas; Akin, Robert Crag; Gutta, Richard Francis; Walker, Roger Clayton; Casanova, Fernando, Method and apparatus to facilitate increasing turbine rotor efficiency.
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Wunderle, Helmar; Schlechtriem, Stefan; Graf, Peter; Glaser, Silvio; Von Arx, Beat, Method for improving the sealing on rotor arrangements.
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Anderson, Rodger O.; Willett, Fred T., Method for modifying a compressor stator vane.
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Ryoji Muraki JP, Rotary ring and mechanical seal using the same.
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Desai, Tushar S.; Walker, Roger Clayton; Gutta, Richard Francis; Casanova, Fernando J.; Meenaksh, Ravi, Rotor cooling circuit.
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Bouru, Michel A.; Charbonnel, Jean-Louis; Prato, Jean-Claude, Sealing and retaining device for a rotor notched with pin settings receiving blade roots.
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Pouzet, Emilie; Casaliggi, Pascal; Pasquiet, Didier, Sealing ring for a turbine stage of an aircraft turbomachine, comprising slotted anti-rotation pegs.
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Boeck, Alexander, Securing element for fastening rotor blades.
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Ress ; Jr. Robert Anthony ; Rice Edward Claude, Segmented ring blade retainer.
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Aiello, Nicholas; Lee, Conor, Segmented seal with ship lap ends.
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Kerber, Onika Misasha; Johns, David Richard, Spring seal assembly and method of sealing a gap.
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Webb, Rene James, Turbine rotor with locking plates and corresponding assembly method.
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Hafner, Matthew Troy, Turbine seal plate assembly.
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Becker, Bernard, Turbo-engine and rotor for a turbo-engine.
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Norman Douglas Lathrop, Wheelspace windage cover plate for turbine.
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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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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
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연합인증

Compressor rotor cross shank leak seal for axial dovetails 원문보기

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이 특허를 인용한 특허 (26)

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Compressor rotor cross shank leak seal for axial dovetails 원문보기

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연구과제 타임라인

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이 특허를 인용한 특허 (26)

관련 콘텐츠

특허 원문 보기

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