[특허]Closed circuit steam cooled turbine shroud and method for steam cooling turbine shroud

[미국특허] Closed circuit steam cooled turbine shroud and method for steam cooling turbine shroud 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F04D-031/00
출원번호	US-0567296 (2000-05-08)
발명자 / 주소	Steven Sebastian Burdgick Brendan Francis Sexton Iain Robertson Kellock
출원인 / 주소	General Electric Company
대리인 / 주소	Nixon & Vanderhye PC
인용정보	피인용 횟수 : 15 인용 특허 : 5

초록 ▼

A turbine shroud cooling cavity is partitioned to define a plurality of cooling chambers for sequentially receiving cooling steam and impingement cooling of the radially inner wall of the shoud. An impingement baffle is provided in each cooling chamber for receiving the cooling media from a cooling media inlet in the case of the first chamber or from the immediately upstream chamber in the case of the second through fourth chambers and includes a plurality of impingement holes for effecting the impingement cooling of the shroud inner wall.

대표청구항 ▼

1. lmpingement cooling apparatus for a turbine shroud assembly having inner and outer walls spaced from one another to define a cooling cavity therebetween, comprising:partition walls provided in said cavity to define at least four cooling chambers within said cavity, each said cooling chamber having a cooling medium inlet and a cooling medium outlet and defining a cooling medium flow path therethrough; an impingement baffle being disposed in each said chamber to define upstream and downstream compartments therewithin, each said impingement baffle having a plurality of flow openings therethrough for communicating cooling medium between said compartments through said openings; each said upstream compartment being in flow communication with the respective cooling medium inlet and each said downstream compartment being in flow communication with the respective cooling medium outlet; a supply passage in communication with a first of said cooling chambers for supplying cooling medium to said upstream compartment of said first chamber for flow through the openings of the impingement baffle thereof into said downstream compartment of said first chamber for impingement cooling of said inner wall; an exhaust passage in communication with a fourth of said cooling chambers for exhausting post-impingement cooling medium from said downstream compartment of said fourth chamber.

이 특허에 인용된 특허 (5) 인용/피인용 타임라인 분석

Marey Daniel Jean,FRX, Apparatus for ventilating a turbine stator ring.
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Watanabe Koji,JPX ; Aizawa Akiko,JPX ; Chikami Rintaro,JPX ; Suenaga Kiyoshi,JPX, Gas turbine cooling structure.
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Correia Victor H. (Scotia NY) Brown Theresa A. (Ballston Lake NY) Chiu R. Paul (Scotia NY), Impingement cooling and cooling medium retrieval system for turbine shrouds and methods of operation.
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Correia Victor H. S. (Scotia NY), Impingement cooling apparatus for turbine shrouds having ducts of increasing cross-sectional area in the direction of po.
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Proctor Robert (West Chester OH) Plemmons Larry W. (Fairfield OH) Brainch Gulcharan S. (West Chester OH) Hess John R. (West Chester OH) Albers Robert J. (Park Hills KY), Shroud cooling assembly for gas turbine engine.
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이 특허를 인용한 특허 (15) 인용/피인용 타임라인 분석

Schiavo, Anthony L., Circumferential shroud inserts for a gas turbine vane platform.
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Bulgrin,Charles Alan; Kellock,Iain Robertson; Tesh,Stephen William; Nigmatulin,Tagir, Closed loop, steam cooled turbine shroud.
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Ojiro, Yasuhiro; Akagi, Kouichi; Magoshi, Ryotaro; Morimoto, Hitoshi; Hashimoto, Shinya; Yashiki, Tadao, Gas turbine cooling passages for blade rings, combustor transition piece connecting portions and stationary blades.
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Mishra, Niraj K., Gas turbine shroud assemblies.
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Bigi, Manuele; Iacopetti, Piero; Ciani, Alessandro, Protection device for a turbine stator.
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Nigmatulin,Tagir Robert, Resilient seal on trailing edge of turbine inner shroud and method for shroud post impingement cavity sealing.
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Murphy, John Thomas; Burdgick, Steven Sebastian, Sealing of steam turbine bucket hook leakages using a braided rope seal.
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Murphy, John Thomas; Burdgick, Steven Sebastian, Sealing of steam turbine nozzle hook leakages using a braided rope seal.
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Eastman, John Alan; Itzel, Gary Michael; Malinowski, Charles; Morgan, Victor; Johns, David Richard; Lewis, Bryan, Shroud configuration having sloped seal.
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Wang, John Zhiqiang; Scaeffer, Jon Conrad; Kellock, Iain Robertson; Sims, Calvin L., Turbine bucket damper pin.
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Meisels,David, Turbine shroud cooling system.
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Lucas, Terrence; B?dard, Dominic; Daniel, Amir; Synnott, Remy, Turbine shroud segment apparatus for reusing cooling air.
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McMahan, Kevin Weston; Dillard, Daniel Jackson, Turbine system.
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Marini,Bonnie D.; Schiavo,Anthony L., Turbine vane with removable platform inserts.
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Marini, Bonnie D.; Schiavo, Anthony L., Turbine vanes with airfoil-proximate cooling seam.
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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] Closed circuit steam cooled turbine shroud and method for steam cooling turbine shroud 원문보기