Convolution seal for transition duct in turbine system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02C-007/28
F01D-009/02
F01D-011/00
F16J-015/08
출원번호
US-0292351
(2011-11-09)
등록번호
US-8974179
(2015-03-10)
발명자
/ 주소
Flanagan, James Scott
LeBegue, Jeffrey Scott
McMahan, Kevin Weston
Dillard, Daniel Jackson
Pentecost, Ronnie Ray
출원인 / 주소
General Electric Company
대리인 / 주소
Dority & Manning, P.A.
인용정보
피인용 횟수 :
0인용 특허 :
37
초록▼
A turbine system is disclosed. In one embodiment, the turbine system includes a transition duct. The transition duct includes an inlet, an outlet, and a passage extending between the inlet and the outlet and defining a longitudinal axis, a radial axis, and a tangential axis. The outlet of the transi
A turbine system is disclosed. In one embodiment, the turbine system includes a transition duct. The transition duct includes an inlet, an outlet, and a passage extending between the inlet and the outlet and defining a longitudinal axis, a radial axis, and a tangential axis. The outlet of the transition duct is offset from the inlet along the longitudinal axis and the tangential axis. The transition duct further includes an interface member for interfacing with a turbine section. The turbine system further includes a convolution seal contacting the interface member to provide a seal between the interface member and the turbine section.
대표청구항▼
1. A turbine system, comprising: a transition duct comprising an inlet, an outlet, and a passage extending between the inlet and the outlet and defining a longitudinal axis, a radial axis, and a tangential axis, the outlet of the transition duct offset from the inlet along the longitudinal axis and
1. A turbine system, comprising: a transition duct comprising an inlet, an outlet, and a passage extending between the inlet and the outlet and defining a longitudinal axis, a radial axis, and a tangential axis, the outlet of the transition duct offset from the inlet along the longitudinal axis and the tangential axis, the transition duct further comprising an interface member for interfacing with a turbine section, the interface member comprising a channel, the channel comprising a radially inner first wall, a radially outer second wall opposing the first wall, and a third wall joining the first wall and the second wall; anda convolution seal contacting the interface member and at least partially disposed in the channel to provide a seal between the interface member and the turbine section, the convolution seal comprising a first outer leg and a second outer leg, and wherein the first outer leg and the second outer leg are angled outwardly from each other in an operating condition from an intersection of the first outer leg and an intersection of the second outer leg,wherein one of the first outer leg and the second outer leg contacts the third wall and the other of the first outer leg and the second outer leg contacts the turbine section,wherein the intersection of the first outer leg and the intersection of the second outer leg are entirely within the channel and contact the first wall, andwherein ends of the first outer leg and the second outer leg are facing and spaced apart from the second wall. 2. The turbine system of claim 1, wherein at least a portion of one of the first outer leg and the second outer leg is curvilinear. 3. The turbine system of claim 1, wherein at least a portion of one of the first outer leg and the second outer leg is linear. 4. The turbine system of claim 1, further comprising a plurality of convolution seals. 5. The turbine system of claim 1, further comprising a plurality of interface members. 6. The turbine system of claim 1, wherein the outlet of the transition duct is further offset from the inlet along the radial axis. 7. The turbine system of claim 1, further comprising a plurality of transition ducts, each of the plurality of transition ducts disposed annularly about the longitudinal axis and connected to the turbine section. 8. The turbine system of claim 1, wherein the interface member is a first interface member, further comprising the turbine section, the turbine section comprising a second interface member for interfacing with the first interface member, the convolution seal contacting the second interface member to provide a seal between the first and second interface members. 9. The turbine system of claim 8, wherein the turbine section comprises a first stage bucket assembly, and wherein no nozzles are disposed upstream of the first stage bucket assembly. 10. A turbine system, comprising: a transition duct comprising an inlet, an outlet, and a passage extending between the inlet and the outlet and defining a longitudinal axis, a radial axis, and a tangential axis, the outlet of the transition duct offset from the inlet along the longitudinal axis and the tangential axis, the transition duct further comprising a first interface member, the interface member comprising a channel, the channel comprising a radially inner first wall, a radially outer second wall opposing the first wall, and third wall joining the first wall and the second wall;a turbine section comprising a second interface member; anda convolution seal contacting and providing a seal between the first interface member and the second interface member, the convolution seal at least partially disposed in the channel and movable relative to the first interface member and the second interface member, the convolution seal comprising a first outer leg and a second outer leg, and wherein the first outer leg and the second outer leg are angled outwardly from each other in an operating condition from an intersection of the first outer leg and an intersection of the second outer leg,wherein one of the first outer leg and the second outer leg contacts the third wall and the other of the first outer leg and the second outer leg contacts the turbine section,wherein the intersection of the first outer leg and the intersection of the second outer leg are entirely within the channel and contact the first wall, andwherein ends of the first outer leg and the second outer leg are facing and spaced apart from the second wall. 11. The turbine system of claim 10, wherein at least a portion of one of the first outer leg and the second outer leg is curvilinear. 12. The turbine system of claim 10, wherein at least a portion of one of the first outer leg and the second outer leg is linear. 13. The turbine system of claim 10, further comprising a plurality of convolution seals. 14. The turbine system of claim 10, further comprising a plurality of first interface members and a plurality of second interface members. 15. A turbine system, comprising: a transition duct comprising an inlet, an outlet, and a passage extending between the inlet and the outlet and defining a longitudinal axis, a radial axis, and a tangential axis, the outlet of the transition duct offset from the inlet along the longitudinal axis and the tangential axis, the transition duct further comprising an interface member for interfacing with a turbine section; anda convolution seal contacting the interface member to provide a seal between the interface member and the turbine section, the convolution seal comprising a first outer leg and a second outer leg, each of the first outer leg and the second outer leg extending between an intersection and an end, each of the first outer leg and the second outer leg comprising a linear portion extending from the end towards the intersection, each of the first outer leg and the second outer leg further comprising a curvilinear portion extending between the linear portion and the intersection, and wherein a maximum width between the curvilinear portions of the first outer leg and the second outer leg is greater than a width between the ends of the first outer leg and the second outer leg. 16. The turbine system of claim 15, wherein the interface member comprises a channel, and wherein the convolution seal is at least partially disposed in the channel. 17. The turbine system of claim 15, wherein the outlet of the transition duct is further offset from the inlet along the radial axis. 18. The turbine system of claim 15, further comprising a plurality of transition ducts, each of the plurality of transition ducts disposed annularly about the longitudinal axis and connected to the turbine section. 19. The turbine system of claim 15, wherein the interface member is a first interface member, further comprising the turbine section, the turbine section comprising a second interface member for interfacing with the first interface member, the convolution seal contacting the second interface member to provide a seal between the first and second interface members. 20. The turbine system of claim 19, wherein the turbine section comprises a first stage bucket assembly, and wherein no nozzles are disposed upstream of the first stage bucket assembly.
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이 특허에 인용된 특허 (37)
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