Brush-seal designs for turbines and similar rotary apparatus
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F01D-011/02
F01D-011/00
출원번호
US-0543951
(2000-04-06)
발명자
/ 주소
Dalton,Wiliam S.
Sulda,Eric
Dalton,Patrick S.
Catlow,William G.
출원인 / 주소
TurboCare, Inc.
인용정보
피인용 횟수 :
16인용 특허 :
13
초록▼
A seal segment for a turbine is provided having labyrinth teeth and a brush seal disposed along the labyrinth teeth. A plurality of the segments for a seal ring. The segments are separable from each other so that the seal can retract. Each segment has two ends, each of which abuts another segment, w
A seal segment for a turbine is provided having labyrinth teeth and a brush seal disposed along the labyrinth teeth. A plurality of the segments for a seal ring. The segments are separable from each other so that the seal can retract. Each segment has two ends, each of which abuts another segment, with those ends lying along along a radius (when looking down the shaft of the turbine). The brush disposed in each segment has ends that do not lie along a radius, but fit together in a tongue and groove configuration when the seal segments come together to form a seal.
대표청구항▼
What is claimed is: 1. A retractable packing segment for an apparatus that extracts work from the expansion of a gaseous working fluid, said apparatus comprising: a rotating shaft disposed in a casing, wherein a plurality of packing segments are disposed in a ring and centered on an axis defined by
What is claimed is: 1. A retractable packing segment for an apparatus that extracts work from the expansion of a gaseous working fluid, said apparatus comprising: a rotating shaft disposed in a casing, wherein a plurality of packing segments are disposed in a ring and centered on an axis defined by said shaft to provide a seal therearound, each said packing segment being retractable and comprising: an inner face for sealing against said shaft and an outer face supporting a T-shaped extension, said inner and outer faces and said extension spanning opposing common side ends, said common side ends cut parallel with radii of said axis; and at least one brush seal disposed on the inner face of said segment, said brush seal having opposing ends, at least one of said ends cut non-parallel with radii of said axis and extending past one of said common side ends, and bristles of said brush disposed at approximately the same non-parallel direction, wherein said plurality of packing segments provide a continuous 360째 brush seal around said shaft. 2. The packing segment of claim 1, wherein both ends of said brush seal are cut non-parallel with radii of said axis. 3. The packing segment of claim 1, said inner face further comprising a plurality of fins. 4. The packing segment of claim 3, wherein the fins extend different distances from the inner face. 5. The packing segment of claim 1, said inner face comprising a plurality of brush seals. 6. A retractable brush seal for an apparatus that extracts work from the expansion of a gaseous working fluid, said apparatus comprising: a rotating shaft disposed in a casing, said brush seal in the geometry of a ring formed from a plurality of adjacent abutting packing segments and centered on an axis defined by said shaft to provide a brush seal therearound, each said segment being retractable and comprising: an inner face for sealing against said shaft and an outer face supporting a T-shaped extension, said inner and outer faces and said extension spanning opposing common side ends, said common side ends cut parallel with radii of said axis; and; at least one brush seal disposed on the inner face of said segment, said brush seal having opposing side ends cut non-parallel with radii of said axis, with bristles disposed at essentially the same non-parallel direction, one of said side ends cut angled to form a tongue extending past the segment common side end and the other of said brush seal ends cut at the same angle relative to said segment to provide a groove inset from the common side end for accepting a tongue formed by a brush seal on an adjacent packing segment, wherein a plurality of segments provide an continuous 360째 brush seal ring around said shaft. 7. The brush seal of claim 6, said inner face further comprising a plurality of fins. 8. The brush seal of claim 7, wherein the fins extend different distances from the inner face. 9. The brush seal of claim 6, said inner face comprising a plurality of brush seals.
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이 특허에 인용된 특허 (13)
Turnquist Norman Arnold ; Wolfe Christopher Edward ; Dinc Osman Saim, Anti-hysteresis brush seal.
Skinner David Robert ; Bagepalli Bharat S. ; Cromer Robert Harold ; Dinc Osman Saim,TKX ; Turnquist Norman Arnold ; Wolfe Christopher Edward, Combined brush seal and labyrinth seal segment for rotary machines.
Skinner David Robert ; Bagepalli Bharat S. ; Cromer Robert Harold ; Dine Osman Saim,TRX ; Turnquist Norman Arnold ; Wolfe Christopher Edward, Combined brush seal and labyrinth seal segment for rotary machines.
Brandon Ronald E. (Melbourne FL), Retractible segmented packing ring for fluid turbines having gravity springs to neutralize packing segment weight forces.
Dalton William S. (Chesterfield MA) Clark Richard S. (Feeding Hills MA) Trunkett Kevin S. (Springfield MA), Spillstrip design for elastic fluid turbines.
Bagepalli Bharat S. (Schenectady NY) Cromer Robert H. (Gloversville NY) Dinc Osman S. (Troy NY) Maynard James (Clifton Park NY), Woven seal and hybrid cloth-brush seals for turbine applications.
Wilson, Ross; McCaffrey, Michael G.; Farris, John R.; Hall, Theodore W.; Korzendorfer, John W.; Vinson, Elizabeth F.; Jacques, Jeffrey Michael; Paul, John E.; Otero, Edwin; Stoner, Alan W., Brush seal plate.
Deo, Hrishikesh Vishvas; Turnquist, Norman Arnold; Baily, Frederick George; Couture, Jr., Bernard Arthur; Feeny, Sean Douglas; Adis, William Edward; Awtar, Shorya, Compliant plate seal with an annular ring for turbomachinery and methods of assembling the same.
Verma, Nikhil Kumar; Imam, Imdad; Ghate, Vineet; Feeny, Sean Douglas; Adis, William Edward; Awtar, Shorya; Mortzheim, Jason Paul, Methods and apparatus to facilitate sealing in rotary machines.
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