Device for maintaining joints with sealing leaves
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0489306
(2002-09-18)
|
우선권정보 |
FR-01 12133(2001-09-20) |
국제출원번호 |
PCT/FR02/003182
(2002-09-18)
|
§371/§102 date |
20040317
(20040317)
|
국제공개번호 |
WO03/025350
(2003-03-27)
|
발명자
/ 주소 |
- Antunes,Serge Louis
- Gazeau,Patrick Pierre Bernard
- Marchi,Marc
- Rosset,Patrice Jean Marc
|
출원인 / 주소 |
|
대리인 / 주소 |
Oblon, Spivak, McClelland, Maier &
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인용정보 |
피인용 횟수 :
8 인용 특허 :
4 |
초록
▼
The invention provides a device for holding strip sealing gaskets on a turbomachine nozzle, the nozzle being constituted by a plurality of sectors having guide vanes which extend between inner and outer platforms elements, at least one of said platform elements having a sealing strip (30) disposed r
The invention provides a device for holding strip sealing gaskets on a turbomachine nozzle, the nozzle being constituted by a plurality of sectors having guide vanes which extend between inner and outer platforms elements, at least one of said platform elements having a sealing strip (30) disposed radially in a space between said platform element and an adjacent structural element in order to provide fluid tightness between said elements, the corresponding strips of two adjacent sectors touching, and their joint being covered by a joint cover (31) disposed between said strips, and by a holding member for holding said strips in the sealing position.
대표청구항
▼
The invention claimed is: 1. A turbomachine including a nozzle interposed axially between two structural elements, said nozzle being made up of a plurality of sectors having guide vanes which extend between inner and outer platform elements, at least one of said platform elements including a sealin
The invention claimed is: 1. A turbomachine including a nozzle interposed axially between two structural elements, said nozzle being made up of a plurality of sectors having guide vanes which extend between inner and outer platform elements, at least one of said platform elements including a sealing strip disposed radially in a space between said at least one platform element and an adjacent structural element so as to provide fluid tightness between said elements, the corresponding strips of two adjacent sectors touching and their joint being covered by a joint cover disposed between said strips and by a holding member for holding said strips in the sealing position, wherein the holding member comprises a tab carried by one sector and extending circumferentially at the periphery of said sector, the free end of said tab bearing against the joint cover in an angular zone outside said sector, wherein the joint cover is urged against said sealing strip by the holding member. 2. A turbomachine according to claim 1, wherein the tab is held on the sector by two angularly offset connections. 3. A turbomachine according to claim 2, wherein one of the connections is capable of sliding circumferentially. 4. A turbomachine according to claim 1, wherein each holding member urges the joint cover at a point angularly externally of the strip to which the joint cover is attached. 5. A turbomachine including a nozzle interposed axially between two structural elements, said nozzle being made up of a plurality of sectors having guide vanes which extend between inner and outer platform elements, at least one of said platform elements including a sealing strip disposed radially in a space between said at least one platform element and an adjacent structural element so as to provide fluid tightness between said elements, the corresponding strips of two adjacent sectors touching and their joint being covered by a joint cover disposed between said strips and by a holding member for holding said strips in the sealing position. wherein the holding member comprises a tab carried by one sector and extending circumferentially at the periphery of said sector, the free end of said tab bearing against the joint cover in an angular zone outside said sector, wherein the tab is held on the sector by two angularly offset connections, wherein one of the connections is capable of sliding circumferentially, and wherein the connections are provided by axial rivets passing through openings formed in the tab. 6. A turbomachine according to claim 5, wherein the sliding connection is provided by a hairpin system continuously urging said tab towards the strip. 7. A turbomachine according to claim 6, wherein the other connection of the tab is disposed at the end of the tab remote from its free end and is axially fixed. 8. A turbomachine according to any one of claims 5 to 7 , wherein the joint cover has opposite notches at its ends, and said notches have neighboring rivets of two adjacent sectors passing therethrough. 9. A turbomachine comprising: a turbomachine structural element; a platform; and a sealing gasket between said structural element and said platform, wherein said sealing gasket comprises: two adjacent strips touching each other and forming a joint, a joint cover configured to cover said joint, and a tab having an end which bears against said joint cover so as to urge said joint cover against adjacent ends of said strips into a sealing position. 10. A turbomachine according to claim 9, wherein the end of said tab bears against the joint cover in an angular zone outside a sector for said platform. 11. A turbomachine according to claim 9, wherein the tab is held on a sector by connections. 12. A turbomachine according to claim 11, wherein one of the connections is capable of sliding circumferentially. 13. A turbomachine according to claim 11, wherein the connections are provided by axial rivets. 14. A turbomachine according to claim 13, wherein the axial rivets pass through openings formed in the tab. 15. A turbomachine according to claim 9, wherein the tab is held on a sector by two connections. 16. A turbomachine according to claim 15, wherein said two connections are angularly offset. 17. A turbomachine according to claim 9, wherein said tab extends circumferentially over the platform. 18. A turbomachine according to claim 9, wherein said tab has a second end curved into a U-shape.
이 특허에 인용된 특허 (4)
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Edward C. Rice ; Robert A. Ress, Jr., Combustor seal assembly.
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Marc Roger Marchi FR; Jean-Pierre Louis Mareix FR; Patrice Rosset FR, Leaf seal.
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Frost Wilson ; Staker John R. ; Starkweather John H., Turbine flowpath seal.
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Bobo ; Melvin ; Heyser ; James W. ; Shotts ; L. D. ; Wisbey ; Raymond W., Turbine nozzle.
이 특허를 인용한 특허 (8)
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Batt, Stephen, Component of a turbine with leaf seals and method for sealing against leakage between a vane and a carrier element.
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Scheib, Charles J.; Fox, William D., Deliverable surgical instrument.
-
Moore, Kyle P.; Shelton, IV, Frederick E.; Weisenburgh, II, William B.; Morgan, Jerome R.; Ransick, Mark H.; Timperman, Eugene L., Detachable motor powered surgical instrument.
-
Böck, Alexander, Housing system for an axial turbomachine.
-
West,James Anthony; Kvasnak,William Stephen; Sexton,Brendan Francis, Methods and apparatus for cooling combustion turbine engine components.
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Snook, Daniel D.; Benjamin, Edward D.; Harter, Ariel K.; Humanchuk, David J., Outer sidewall retention scheme for a singlet first stage nozzle.
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Baxter, III, Chester O.; Shelton, IV, Frederick E.; Swayze, Jeffrey S.; Aronhalt, Taylor W.; Schmid, Katherine J., Staple cartridge comprising a compressible layer.
-
Naryzhny, Oleg Dmitrievich; Morozov, Andrey Petrovich; Khanin, Alexander Anatolievich, Turbine vane.
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