IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0788956
(2013-03-07)
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등록번호 |
US-8578860
(2013-11-12)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Lawrence Livermore National Security, LLC
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대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
7 인용 특허 :
9 |
초록
▼
Inductrack III configurations are suited for use in transporting heavy freight loads. Inductrack III addresses a problem associated with the cantilevered track of the Inductrack II configuration. The use of a cantilevered track could present mechanical design problems in attempting to achieve a stro
Inductrack III configurations are suited for use in transporting heavy freight loads. Inductrack III addresses a problem associated with the cantilevered track of the Inductrack II configuration. The use of a cantilevered track could present mechanical design problems in attempting to achieve a strong enough track system such that it would be capable of supporting very heavy loads. In Inductrack III, the levitating portion of the track can be supported uniformly from below, as the levitating Halbach array used on the moving vehicle is a single-sided one, thus does not require the cantilevered track as employed in Inductrack II.
대표청구항
▼
1. An apparatus, comprising: a first track comprising a first levitation portion and a first current adjusting portion;a first Halbach (HB) array spaced from, by a first gap, and about parallel with, said first levitation portion for producing a first current in said first track, wherein there is no
1. An apparatus, comprising: a first track comprising a first levitation portion and a first current adjusting portion;a first Halbach (HB) array spaced from, by a first gap, and about parallel with, said first levitation portion for producing a first current in said first track, wherein there is no other Halbach array located on the side of said first levitation portion that is directly opposite with respect to said first Halbach array;a second Halbach array spaced from and about parallel with said first current adjusting portion for producing a second cur t in said first track, wherein said first current and said second current are opposite in polarity;a second track comprising a second levitation portion and a second current adjusting portion;a third Halbach array spaced from, by a second gap, and parallel with, said second levitation portion for producing a third current in said second track, wherein there is no other Halbach array located on the side of said second levitation portion that is directly opposite with respect to said third Halbach array; anda fourth Halbach array spaced from and parallel with said second current adjusting portion for producing a fourth current in said second track, wherein said third current and said fourth current are opposite in polarity, wherein upon movement along said track, said first Halbach array will levitate above said first levitation portion and said second Halbach array will levitate above said second levitation portion. 2. The apparatus of claim 1, wherein said first current adjusting portion and said second current adjusting portion are about parallel to form a parallel track portion, wherein said second FIB array and said fourth HB array are about parallel and located en opposite sides of said parallel track portion. 3. The apparatus of claim 2, wherein said second HB array and said fourth HB array are configured so that their transverse field is maximized, acting to reduce the current induced in said first levitation portion and said second levitation portion resulting in a higher overall levitation efficiency of said apparatus. 4. The apparatus of claim 1, wherein said first current adjusting portion together with said second HB array and said second current adjusting portion together with said fourth HB array are altogether configured to operate as a linear synchronous motor, wherein said LSM comprises LSM windings and wherein said first track and said second track comprise track windings, wherein said LSM windings are collocated with said track windings. 5. The apparatus of claim 1, wherein said first track and said second track each comprise laminated windings. 6. The apparatus of claim 1, further comprising a carrier fixedly attached to said second HB array and said fourth HB array. 7. The apparatus of claim 1, further comprising a. uniform non-cantilevered support operatively fixed to support said first levitation portion and said second levitation portion. 8. The apparatus of claim 7, wherein said support comprises a dihedral angle that narrows toward said second HB array and said fourth HB array to provide a centering force between said second Halbach array and said fourth HB array. 9. The apparatus of claim 7, wherein said first current adjusting portion and said second current adjusting portion overhang an edge of said support. 10. The apparatus of claim L further comprising a fifth HB array located about parallel with said second HB array and located on the opposite side of said first current adjusting portion with respect to said second HB array. 11. The apparatus of claim 1, further comprising means for changing a parameter of at least one of said third Halbach array and said fourth Halbach array to optimize levitation efficiency. 12. A method utilizing the apparatus of claim 1, the method comprising translating said first Halbach array together with said third Halbach array along said first levitation portion and said second levitation portion, respectively. 13. The method of claim 12, wherein a first repelling force exerted between said first levitation portion and first Halbach array increases as said first gap between them decreases and vise versa and wherein a second repelling force exerted between said second levitation portion and third Halbach array increases as said second gap between them decreases and vice versa. 14. The method of claim 12, wherein the sum of the current in each of said. first track and said second track increases as said first gap and said second gap decrease, respectively, and vice versa. 15. The method of claim 12, wherein said first current adjusting portion and said second current adjusting portion are about parallel to form a parallel track portion, wherein said second HB array and said fourth HB array are about parallel and located on opposite sides of said parallel track portion. 16. The method of claim 15, wherein said second HB array and said fourth MB array are configured so that their transverse field is maximized, acting to reduce the current induced in said first levitation portion and said second levitation portion resulting in a higher overall levitation efficiency of said apparatus. 17. The method of claim 12, wherein said first current adjusting portion together with said second HB array and said second current adjusting portion together with said fourth HB array are altogether configured to operate as a linear synchronous motor, wherein said LSM comprises LSM windings and wherein said first track and said second track comprise track windings, wherein said LSM winding are collocated with said track windings. 18. The method of claim 12, wherein said first track and said second track each comprise laminated windings. 19. The method of claim 12, further comprising a carrier fixedly attached to said second HB array and said fourth HB array. 20. The method of claim 12, further comprising a uniform non-cantilevered support operatively fixed to support said first levitation portion and said second levitation portion. 21. The method of claim 20, wherein said support comprises a dihedral angle that narrows toward said second HB array and said fourth HB array to provide a centering force between said second Halbach array and said fourth HB array. 22. The method of claim 20, wherein said first current adjusting portion and said second current adjusting portion overhang an edge of said support. 23. The method of claim 12, further comprising a fifth HB array located about parallel with said second HB array and located on the opposite side of said first current adjusting portion with respect to said second HB array. 24. The method of claim 12, further comprising changing a parameter of at least one of said third Halbach array and said fourth Halbach array to optimize levitation efficiency. 25. An apparatus, comprising: a first track comprising conductive windings;first support for supporting said first, track;a first iron piece fixedly attached to said first support;a second track spaced apart from said first track and comprising conductive windings;a second support for supporting said second track;a second iron piece fixedly attached to said second support;a carrier;a first Halbach array attached to said carrier and located directly above said first track to provide a first levitation force;a second Halbach array attached to said carrier and located directly above said second track to provide a second levitation force;a first biasing magnet located directly below said first iron piece; anda second biasing magnet located directly below said second iron piece, wherein said first biasing magnet and said second biasing magnet are adjustably attached to said carrier such that the greater the load on said carrier the closer said first biasing magnet will be to said first iron piece and the closer said second biasing magnet will be to said second iron piece. 26. The apparatus of claim 25, wherein said first biasing magnet and said second biasing magnet are mechanically adjustable to move toward or away from said first iron piece and said second iron piece respectively as a load on said carrier increases or decreases to add to or subtract from said first levitation force and said second levitation force respectively, 27. The apparatus of claim 25, wherein said first biasing magnet together with said first iron piece and said second biasing magnet together with said second iron piece are configured to provide lateral centering forces, wherein said first iron piece comprises a dimension sized to insure that edge effects between said first biasing magnet and said first iron piece give rise to a centering force and wherein said second iron piece comprises a dimension sized to insure that edge effects between said second biasing magnet and said second iron piece give rise to a centering force. 28. A method utilizing the apparatus of claim 25, the method comprising translating said first Halbach array and said second Halbach array along said first track and said second track, respectively. 29. The method of claim 28, further comprising mechanically adjusting said first biasing magnet and said second biasing magnet to move toward or away from said first iron piece and said second iron piece respectively as a load on said carrier increases or decreases to add to or subtract from said first levitation force and said second levitation force respectively, 30. The apparatus of claim 28, wherein said first biasing magnet together with said first iron piece and said second biasing magnet together with said second iron piece are configured to provide lateral centering forces, wherein said first iron piece comprises a dimension sized to insure that edge effects between said first biasing magnet and said first iron piece give rise to a centering force and wherein said second iron piece comprises a dimension sized to insure that edge effects between said second biasing magnet and said second iron piece give rise to a centering force.
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