A turbine system and adapter are disclosed. The adapter includes a turbine attachment portion having a first geometry arranged to receive a corresponding geometry of a wheelpost of a turbine rotor, and a bucket attachment portion having a second geometry arranged to receive a corresponding geometry
A turbine system and adapter are disclosed. The adapter includes a turbine attachment portion having a first geometry arranged to receive a corresponding geometry of a wheelpost of a turbine rotor, and a bucket attachment portion having a second geometry arranged to receive a corresponding geometry of a root portion of a non-metallic turbine bucket. Another adapter includes a turbine attachment portion arranged to receive a plurality of wheelposts of a turbine rotor, and a bucket attachment portion arranged to receive a plurality of non-metallic turbine buckets having single dovetail configuration root portions. The turbine system includes a turbine rotor wheel configured to receive metal buckets, at least one adapter secured to at least one wheelpost on the turbine rotor wheel, and at least one non-metallic bucket secured to the at least one adapter.
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1. An adapter comprising: a single turbine attachment portion on a first mating side of the adapter, the single turbine attachment portion having a first geometry arranged to contact and receive a corresponding geometry of a single wheelpost of a turbine rotor comprising a plurality of wheelposts co
1. An adapter comprising: a single turbine attachment portion on a first mating side of the adapter, the single turbine attachment portion having a first geometry arranged to contact and receive a corresponding geometry of a single wheelpost of a turbine rotor comprising a plurality of wheelposts comprising the single wheelpost, the plurality of wheelposts defining and separating a plurality of receiving portions of the turbine rotor; anda single bucket attachment portion on a second mating side opposite the first mating side, the single bucket attachment portion having a second geometry arranged to receive and retain a corresponding geometry of a single root portion of a single non-metallic turbine bucket comprising the single root portion. 2. The adapter of claim 1, wherein the single turbine attachment portion having the first geometry comprises a turbine rotor interface. 3. The adapter of claim 1, wherein the single bucket attachment portion having a second geometry comprises a bucket interface. 4. The adapter of claim 1, wherein the single bucket attachment portion is arranged to receive the second geometry of the single non-metallic turbine bucket, wherein the second geometry corresponds to a zero skew angle dovetail. 5. The adapter of claim 1, wherein the single bucket attachment portion is arranged to receive the second geometry of the single non-metallic turbine bucket, wherein the second geometry corresponds to a non-zero skew angle dovetail. 6. The adapter of claim 1, wherein the single bucket attachment portion is arranged to receive the second geometry of the single non-metallic turbine bucket, wherein the second geometry corresponds to a curved dovetail. 7. The adapter of claim 1, comprising a wheelpost locking tab in the single turbine attachment portion. 8. The adapter of claim 1, comprising a dovetail locking tab in the single bucket attachment portion. 9. The adapter of claim 1, comprising a lockwire for axial retention in the single turbine attachment portion and the single bucket attachment portion. 10. The adapter of claim 1, comprising a wear couple on at least one of the first mating side and the second mating side of the adapter. 11. The adapter of claim 1, comprising a wear resistant coating applied over at least one of the first mating side and the second mating side of the adapter. 12. An adapter comprising: a plurality of turbine attachment portions on a first mating side of the adapter, each of the plurality of turbine attachment portions being arranged to contact and receive one of a plurality of wheelposts of a turbine rotor, the plurality of wheelposts defining and separating a plurality of receiving portions of the turbine rotor; anda plurality of bucket attachment portions on a second mating side opposite the first mating side, each of the plurality of bucket attachment portions being arranged to receive and retain a single dovetail root portion of one of a plurality of non-metallic turbine buckets having the single dovetail configuration root portions;wherein the plurality of turbine attachment portions are equal in number to the plurality of bucket attachment portions. 13. The adapter of claim 12, further comprising material selected from the group consisting of metal, ceramic, ceramic matrix composite, intermetallic material and metal matrix composite. 14. A turbine system comprising: a turbine rotor wheel configured to receive metal buckets, the turbine rotor wheel comprising a plurality of wheelposts defining and separating a plurality of receiving portions of the turbine rotor;at least one adapter contacting, receiving, and secured to at least one wheelpost of the plurality of wheelposts of the turbine rotor wheel on a first mating side of the at least one adapter; andat least one non-metallic bucket having a root portion secured to the at least one adapter on a second mating side of the at least one adapter opposite the first mating side;wherein the at least one adapter radially aligns each of the root portions with one of the at least one wheelpost; andwherein the at least one non-metallic bucket is selected from the group of materials consisting of ceramic, ceramic matrix composite, intermetallic material, and metal matrix composite. 15. The turbine system of claim 14, wherein the at least one adapter positions the at least one non-metallic bucket radially outward from the turbine rotor wheel. 16. The turbine system of claim 15, wherein the at least one non-metallic bucket comprises a short shank bucket. 17. The turbine system of claim 16, wherein a flow path of the turbine system remains unchanged. 18. The turbine system of claim 17, wherein the metal buckets further comprise a fir tree-type root portion. 19. The turbine system of claim 17, wherein the at least one adapter reduces a cooling air flow of the turbine system. 20. The turbine system of claim 17, wherein the at least one adapter is resistant to bending moments applied to the at least one non-metallic bucket.
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이 특허에 인용된 특허 (17)
Glenn ; Robert G., Blade attachment structure for gas turbine rotor.
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