[특허]Layered seal for turbomachinery

General Electric Company

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Layered seal for turbomachinery

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16J-015/12 F01D-011/00
출원번호	US-0560357 (2012-07-27)
등록번호	US-9188228 (2015-11-17)
발명자 / 주소	Sarawate, Neelesh Nandkumar Morgan, Victor John Weber, David Wayne
출원인 / 주소	General Electric Company
대리인 / 주소	Darling, John P.
인용정보	피인용 횟수 : 4 인용 특허 : 21

초록
▼

The present application provides seal assemblies for reducing leakages between adjacent components of turbomachinery. The seal assemblies may include outer shims, and at least a portion of the outer shims may be substantially impervious. At least one of the outer shims may be configured for sealing engagement with seal slots of the adjacent components. The seal assemblies may also include at least one of an inner shim and a filler layer positioned between the outer shims. The at least one inner shim may be substantially solid and the at least one filler layer may be relatively porous. The seal assemblies may be sufficiently flexible to account for misalignment between the adjacent components, sufficiently stiff to meet assembly requirements, and sufficiently robust to operating meet requirements associated with turbomachinery.

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1. A seal assembly for sealing a gap between adjacent turbomachinery components, the assembly including: a first outer shim; anda second outer shim;wherein the first and second outer shim are operably coupled;wherein at least one of the first and second outer shims includes at least one substantially impervious portion configured to span across the gap and engage each of the adjacent turbomachinery components to substantially seal the gap therebetween;wherein the seal assembly includes at least first and second filler layers;wherein the first and second filler layers are operably coupled to the first and second outer shims by at least two welds; andwherein the at least two welds include a first weld that directly couples the at least two filler layers to one another, and a second weld that is weaker than the first weld that directly couples the first outer shim and the first filler layer and directly couples the second outer shim and the second filler layer. 2. The seal assembly of claim 1, wherein each of the first and second outer shims include at least one substantially impervious portion configured to span across the gap and engage each of the adjacent turbomachinery components to substantially seal the gap. 3. The seal assembly of claim 1, wherein the seal assembly includes at least one of an inner shim and a filler layer positioned between the first and second outer shims. 4. The seal assembly of claim 3, wherein the seal assembly includes at least one inner shim, and wherein the at least one inner shim is substantially solid. 5. The seal assembly of claim 4, wherein the seal assembly includes at least one filler layer, and wherein the at least one filler layer is as flexible as or less flexible than at least one of the first and second shims. 6. The seal assembly of claim 4, wherein the at least one filler layer is more porous than at least one of the first and second shims. 7. The seal assembly of claim 6, wherein the at least one filler layer includes at least one of a wire mesh woven cloth, a flat ribbon mesh woven cloth, a honeycomb structure, a corrugated shim and a compliant shim. 8. The seal assembly of claim 6, wherein the seal assembly includes at least one inner shim positioned between the at least one filler layer and the first outer shim, and wherein the at least one inner shim is less porous than the at least one filler layer. 9. The seal assembly of claim 8, wherein the seal assembly includes: a first inner shim adjacent a first filler layer, the first inner shim being positioned between the first outer shim and the first filler layer; anda second inner shim adjacent a second filler layer, the second inner shim being positioned between the second outer shim and the second filler layer. 10. The seal assembly of claim 6, wherein the seal assembly includes at least one inner shim positioned between at least two filler layers, and wherein the at least one inner shim is adjacent at least one of the at least two filler layers. 11. The seal assembly of claim 3, wherein the seal assembly defines a width and a thickness defining an interior of the seal assembly, wherein the first and second outer shims extend at least along the width of the seal assembly, and wherein the seal assembly includes first and second members operably connected to opposing sides of the first outer shim and extend therefrom at least along the thickness of the seal assembly in a direction towards the interior of the seal assembly. 12. The seal assembly of claim 11, wherein the second outer shim and the at least one of an inner shim and a filler layer are positioned between the first and second members, and wherein the thickness of the first and second members is greater than the combined thickness of the second outer shim and the at least one of an inner shim and a filler layer. 13. The seal assembly of claim 11, wherein the seal assembly includes third and fourth members operably connected to opposing sides of the second outer shim that extend therefrom along the thickness of the seal assembly towards the interior of the seal assembly. 14. The seal assembly of claim 13, wherein at least a portion of the first outer shim is oriented substantially perpendicular to at least one of the first and second members, and wherein at least a portion of the second outer shim is oriented substantially perpendicular to at least one of the third and fourth members. 15. The seal assembly of claim 13, wherein at least one of the first and second members also extend along the width of the seal assembly away from the interior of the seal assembly, and wherein at least one of the third and fourth members also extend along the width of the seal assembly away from the interior of the seal assembly. 16. The seal assembly of claim 15, wherein the first, second, third and fourth members also extend along the width of the seal assembly away from the interior of the seal assembly, wherein the first member and the third member are positioned on a first side of the seal assembly and the second member and the fourth member are positioned on a second side of the seal assembly, wherein the first and third members are operably connected to form an apex, and wherein the second and fourth members are spaced at least along the thickness of the seal assembly. 17. The seal assembly of claim 16, wherein at least the first outer shim and the at least one of an inner shim and a filler layer are operably coupled by at least one weld positioned in a medial portion of the width of the seal assembly. 18. The seal assembly of claim 17, wherein at least the second outer shim, first outer shim and the at least one of an inner shim and a filler layer are operably coupled by at least one weld positioned in a medial portion of the width of the seal assembly. 19. The seal assembly of claim 3, wherein the seal assembly defines a width and a thickness, wherein the first and second outer shims extend at least along the width of the seal assembly, wherein the seal assembly includes a first member operably connected to a first width side of the first outer shim and a second member operably connected to a second width side of the second outer shim, and wherein the first and second shims are oriented such that the first width side of the first outer shim and the second width side of the second outer shim are positioned at opposing width sides of the seal assembly. 20. The seal assembly of claim 19, wherein the first member extends from the first outer shim at least along the thickness of the seal assembly in a direction towards the interior of the seal assembly and along the width of the seal assembly away from the interior of the seal assembly; and wherein the second member extends from the second outer shim at least along the thickness of the seal assembly in a direction towards the interior of the seal assembly and along the along the width of the seal assembly away from the interior of the seal assembly. 21. The seal assembly of claim 20, wherein the seal assembly includes a third member operably coupled to the first member and a fourth member operably coupled to the second member, wherein the third member extends from the first member at least along the thickness of the seal assembly in a direction towards the second outer shim and along, the width of the seal assembly towards the interior of the seal assembly to form a first apex with the first member at a first side of the seal assembly, and wherein the fourth member extends from the second member at least along the thickness of the seal assembly in a direction towards the first outer shim and along, the width of the seal assembly towards the interior of the seal assembly to form a second apex with the first member at a second side of the seal assembly. 22. The seal assembly of claim 3, wherein the seal assembly defines a width and thickness, and wherein the first outer shim, the second outer shim and the at least one of an inner shim and a filler layer are operably coupled by at least one weld or braze extending generally along the thickness of the seal assembly in a medial portion of the width of the seal assembly. 23. A seal assembly for sealing a gap between adjacent turbomachinery components, the assembly including: a first outer shim;a second outer shim; andat least one of an inner shim and a filler layer positioned between the first and second outer shims,wherein the at least one of an inner shim and a filler layer is operably coupled to the first and second outer shims,wherein the first and second outer shim are operably coupled,wherein at least one of the first and second outer shims includes at least one substantially impervious portion configured to span across the gap and engage each of the adjacent turbomachinery components to substantially seal the gap therebetween,wherein the seal assembly defines a width and thickness, and wherein the first outer shim, the second outer shim and the at least one of an inner shim and a filler layer are operably coupled by at least one weld or braze extending generally along the thickness of the seal assembly in a medial portion of the width of the seal assembly;wherein the seal assembly includes at least first and second woven cloth filler layers, wherein the first and second woven cloth filler layers are operably coupled to the first and second outer shims by at least two welds, andwherein the at least two welds include a first weld that directly couples the at least two woven cloth filler layers to one another, and a second weld that is weaker than the first weld that directly couples the first outer shim and first woven cloth filler layer and directly couples the second outer shim and second woven cloth filler layer.

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Layered seal for turbomachinery

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이 특허에 인용된 특허 (21)

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Layered seal for turbomachinery

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이 특허에 인용된 특허 (21)

이 특허를 인용한 특허 (4)

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