[특허]Dovetail sealing device for axial dovetail rotor blades

[미국특허] Dovetail sealing device for axial dovetail rotor blades 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F01D-005/30
출원번호	US-0931079 (1992-08-17)
발명자 / 주소	Glynn Christopher C. (Hamilton OH) Walker Roger C. (Middletown OH) Lammas Andrew J. (Maineville OH) Fallon Richard J. (West Chester OH)
출원인 / 주소	General Electric Company (Cincinnati OH 02)
인용정보	피인용 횟수 : 45 인용 특허 : 0

초록 ▼

A sealing device for compressor axial dovetail rotor blades for a gas turbine engine comprising a sealing member having a finger portion extending from a main body portion which engages a disk hook located on each disk post and forms a first point of contact about which the sealing member rotates. The sealing member further comprises an extended skirt portion which engages the blade platform of the rotor blades forming a second point of contact. The main body has a center of gravity positioned such that during operation of the engine the main body pivots due to centrifugal force about the disk hook such that the skirt portion engages the blade platform. A split ring is located between the disk posts and a tail portion extending from the lower portion of the sealing member and engages the disk post and tail portion during operation of the engine thereby forming a third point of contact. The combination of the skirt element contacting the blade platform and the split ring contacting the tail portion and the disk posts effectively prevents any leakage axially through the rotor blade dovetail.

대표청구항 ▼

In a gas turbine engine of a type having a turbine disk including a plurality of spaced disk posts forming blade-retaining slots therebetween and a plurality of blades mounted on said disk and having blade roots shaped to engage said slots, an apparatus for sealing gaps between said blade roots and said posts comprising: an annular main body shaped to extend about said disk at said disk posts and cover said gaps, said body having a skirt portion engaging said blades radially outwardly of said gaps; means for interconnecting said disk posts and said main body; and said main body having a center of gravity positioned aft of said interconnecting means such that rotation of said disk and said main body generates centrifugal forces which urge said main body to pivot about said interconnecting means, whereby said skirt portion is urged into sealing engagement with said blades and said disk posts.

이 특허를 인용한 특허 (45) 인용/피인용 타임라인 분석

Robertson, Daniel, Anti fret liner assembly.
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Corley Thomas J. ; Etchison Donald P. ; Dailey George, Apparatus and method for sealing gas turbine blade roots.
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Schaub Fritz,CHX ; Wettstein Hans,CHX, Arrangement which consists of a number of fixing slots and is intended for fitting a rotor or a stator of a fluid-flow.
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Duesler, Paul W.; Rosborough, Richard; Vukovinsky, Michael, Axial retention system and components thereof for a bladed rotor.
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Burt, Jonathan P.; Sandoval, Jonathan Perry, Bayoneted anti-rotation turbine seals.
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Decardenas, Rafael A., Blade assembly in a combustion turbo-machine providing reduced concentration of mechanical stress and a seal between adjacent assemblies.
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Stapleton, David Scott, Blade skirt.
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Merlot, Damien; Sers, Remi, Blisk with low stresses at blade root, preferably for an aircraft turbine engine fan.
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Yehle, Gary Edward; Lillibridge, Wayne Alan; Bylina, Noel Jacob, Bucket dovetail design for turbine rotors.
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Liotta, Gary C.; Ward, Jr., John D., Clamped plate seal.
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Danescu, Radu Ioan; Ward, John D., Compliant seal for rotor slot.
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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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Cairo, Ronald Ralph; Bruce, Kevin Leon, Dovetail attachment seal for a turbomachine.
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Arness, Brian P.; Ward, John D., Gas assisted turbine seal.
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Harris, Jr., John Wesley; Piersall, Matthew Robert; Potter, Brian Denver, Gas turbine having seal assembly with coverplate and seal.
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Bilstein, Björn; Schröder, Peter, Gas turbine having sealing plates on the turbine disc.
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Suciu, Gabriel L.; Norris, James W., Integrally bladed rotor with slotted outer rim.
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Arness, Brian P.; McGovern, Tara Easter; Wardell, John D.; Samudrala, Omprakash, Labyrinth seal for turbine dovetail.
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Ward, John D.; Kottilingam, Srikanth; Tragesser, Daniel; Rauch, Steven, Method and apparatus for creating seal slots for turbine components.
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Connor, James Ryan; Honkomp, Mark Steven, Method and system for sealing a dovetail.
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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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Berg, Richard Hiram; Maier, Mark Stefan, Methods and apparatus for assembling gas turbine engines.
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Scott, Matthew Alban; Cornell, Jay L.; Grant, Robert Russell, Methods and apparatus for limiting fluid flow between adjacent rotor blades.
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Belmonte, Olivier; Gillant, Gregory Nicolas Gerald, Retaining ring assembly and supporting flange for said ring.
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Bricaud, Cyrille; Simon-Delgado, Carlos; Holzhaeuser, Steffen; Lamminger, Marco; Berger, Carl, Rotor assembly for gas turbine.
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Faulkner Andrew R.,GBX, Rotor assembly for use in a turbomachine.
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Caprario, Joseph T., Rotor cover plate retention method.
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Gendraud, Alain Dominique; Garin, Fabrice Marcel Noel; Lunel, Romain Nicolas, Rotor wheel for a turbine engine.
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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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Arness, Brian P.; Veltre, Louis; Harter, Ariel Kelsey Coleman; Wardell, John D., Sealing mechanism with pivot plate and rope seal.
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Wagner,Stefan Jochen, Securing assembly.
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Ward, John D.; Samudrala, Omprakash, Spring seal for turbine dovetail.
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Jayana, Srinivasa Govardhan, Systems, methods, and apparatus for sealing a bucket dovetail in a turbine.
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Tyler, Peter Michael, Testing of a transient voltage protection device.
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Zagar Thomas W. ; Schiavo Anthony L., Turbine blade platform seal.
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Normoyle,Maureen Theresa; Albers,Robert Joseph; Herron,William Lee; Bobo, deceased,Melvin; Plemmons, deceased,Lawrence Wayne, Turbine blade retainer seal.
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Douville, Benoit; Grivas, Nicholas; Chamoun, Jean, Turbine blade retaining apparatus.
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Harris, Jr., John Wesley; Liotta, Gary Charles, Turbine cover plate assembly.
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Liotta, Gary Charles; Bowes, Christopher Sean; Harris, Jr., John Wesley, Turbine coverplate systems.
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Kildea Robert J. ; Voigt Herbert R., Turbine disk and blade assembly seal.
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Tanaka, Tokuhito, Turbine rotor, turbine, and method for removing seal plate.
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Brauer, John Christopher; Lewis, Kenneth Martin; Heise, Fred Martin, Turbomachinery blade retention system.
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Afanasiev, Gennadiy; Brillert, Dieter, Wire seal for metering of turbine blade cooling fluids.
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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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[미국특허] Dovetail sealing device for axial dovetail rotor blades 원문보기