IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0681363
(2008-10-06)
|
등록번호 |
US-8358023
(2013-01-22)
|
우선권정보 |
AU-2007905470 (2007-10-04) |
국제출원번호 |
PCT/AU2008/001493
(2008-10-06)
|
§371/§102 date |
20100604
(20100604)
|
국제공개번호 |
WO2009/043119
(2009-04-09)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
인용정보 |
피인용 횟수 :
6 인용 특허 :
10 |
초록
▼
A turbine unit (11) comprising a passage (23) through which a fluid may pass. Located within the passage (23) is a driving turbine blade set (25) upstream from a pumping turbine blade set (27) wherein the diameter of the pumping turbine blade is larger than the diameter of the driving turbine blade
A turbine unit (11) comprising a passage (23) through which a fluid may pass. Located within the passage (23) is a driving turbine blade set (25) upstream from a pumping turbine blade set (27) wherein the diameter of the pumping turbine blade is larger than the diameter of the driving turbine blade set. The driving turbine blade set and pumping turbine blade set are mounted in opposed relation whereby the turbine blade sets are in reversed orientation with respect to each other such that in simultaneous operation a region between the two turbine blade sets has a lower pressure than the fluid pressure at an opening of the passage. This induces a greater mass flow rate through the turbine unit than would otherwise be created by a pumping turbine blade set equal to or smaller in diameter than the driving turbine blade set.
대표청구항
▼
1. A turbine unit comprising a passage through which a fluid may pass, located within the passage is a driving turbine blade set upstream from a pumping turbine blade set wherein the diameter of the pumping turbine blade set is larger than the diameter of the driving turbine blade set, the driving t
1. A turbine unit comprising a passage through which a fluid may pass, located within the passage is a driving turbine blade set upstream from a pumping turbine blade set wherein the diameter of the pumping turbine blade set is larger than the diameter of the driving turbine blade set, the driving turbine blade set and pumping turbine blade set are mounted in opposed relation whereby the turbine blade sets are in reversed orientation with respect to each other such that in simultaneous operation, whereby they rotate in the same direction, a region between the two turbine blade sets has a lower pressure than the fluid pressure at an opening of the passage, thereby inducing a greater mass flow rate through the turbine unit than would otherwise be created by the pumping turbine blade set equal to or smaller in diameter than the driving turbine blade set. 2. The turbine unit according to claim 1, wherein the driving turbine blade set is in spaced apart relation with the pumping turbine blade set so as to provide optimum flow conditions of the fluid through the passage between the blade sets. 3. The turbine unit according to claim 1, wherein the passage is contained in a housing. 4. The turbine unit according to claim 1, comprising a control system to initially start the unit so as to overcome the unit's inertia. 5. A turbine assembly comprising one or more turbine units as described in claim 1. 6. The turbine unit according to claim 1, wherein each turbine blade set is in the form of a set of blades and which is rotated by the force of the fluid striking the blades. 7. The turbine unit according to claim 6, wherein the reversed orientation of the driving turbine blade set with respect to the pumping turbine blade set is such that the blades of the driving turbine blade set are reversed to be a mirror image of the blades of the pumping turbine blade set when considered from a point between the two turbine blade sets. 8. The turbine unit according to claim 1, wherein the driving turbine blade set and pumping turbine blade set are co-axially mounted. 9. The turbine unit according to claim 8, wherein the turbine blade sets are mounted on a common shaft such that the turbine blade sets rotate simultaneously. 10. The turbine unit according to claim 1, wherein the driving turbine blade set and pumping turbine blade set are independently mounted. 11. The turbine unit according to claim 10, wherein the driving turbine blade set and pumping turbine blade set are interconnected by a gearbox. 12. The turbine unit according to claim 10, wherein the axis of rotation of the driving turbine blade set is offset to the axis of rotation of the pumping turbine blade set. 13. The turbine unit according to claim 1, wherein the passage comprises a chamber located between the two turbine blade sets. 14. The turbine unit according to claim 13, wherein the chamber is substantially conical such that it diverges outwardly from the driving turbine blade wheel to the pumping turbine blade wheel. 15. The turbine unit according to claim 13, wherein the gearbox is located in or external to the chamber. 16. The turbine unit according to claim 1, wherein the passage incorporates a converging portion located between a first end of the passage and the driving turbine blade set. 17. The turbine unit according to claim 16, wherein the converging portion is in the form of a converging nozzle. 18. The turbine unit according to claim 16, wherein the configuration of the converging portion is such that the fluid deflected from the walls of the converging portion is directed onto the blades in a manner which minimizes regions within the converging portion having a significantly reduced velocity relative to fluid entering the converging portion. 19. The turbine unit according to claim 16, wherein the converging portion and the portion of the chamber adjacent but downstream of the driving turbine blade set provides a first venturi. 20. The turbine unit according to claim 1, wherein the passage incorporates a diverging portion located between the pumping turbine blade set and a second end of the passage. 21. The turbine unit according to claim 20, wherein the diverging portion is in the form of a diverging nozzle. 22. The turbine unit according to claim 20, wherein the diverging portion and the portion of the chamber adjacent but upstream of the pumping turbine blade set provides a second venturi. 23. The turbine unit according to claim 1, wherein the passage of the turbine unit incorporates a regulating means to regulate the fluid passing therethrough. 24. The turbine unit according to claim 23, wherein the regulating means is located upstream from the driving turbine blade set. 25. The turbine unit according to claim 9, wherein the shaft is connected to a gearbox. 26. The turbine unit according to claim 25, wherein the gearbox is covered by a shroud. 27. The turbine unit according to claim 1, comprising a plurality of driving turbine blade sets, each being in an adjacent relationship with each other within the passage. 28. The turbine unit according to claim 27, wherein each of the plurality of driving turbine blade sets has varying diameters. 29. The turbine unit according to claim 27, wherein each of the plurality of driving turbine blade sets is of the same diameter. 30. The turbine unit according to claim 29, wherein the plurality of driving turbine blade sets is housed in a cylindrical sleeve within the passage. 31. The turbine unit according to claim 27, wherein each of the plurality of driving turbine blades sets has an increasing diameter in a downstream direction from a first end of the passage. 32. The turbine unit according to claim 31, wherein the plurality of driving turbine blade sets is housed in a sleeve within the passage, the sleeve diverging so as to accommodate the change in size of the driving turbine blade sets. 33. The turbine unit according to claim 27, wherein each of the plurality of driving turbine blades sets has a decreasing diameter in a downstream direction from the first end of the passage. 34. The turbine unit according to claim 33, wherein the plurality of driving turbine blade sets is housed in a sleeve within the passage, the sleeve converging so as to accommodate the change in size of the driving turbine blade sets. 35. The turbine unit according to claim 1, comprising a plurality of pumping turbine blade sets within the passage. 36. The turbine unit according to claim 35, wherein the pumping turbine blade sets is equal in size, variable in size, or are converging or diverging in size in a downstream direction. 37. The turbine unit according to claim 6, comprising one or more stators to direct fluid on to the blades of one or more of the relevant turbine blade set. 38. The turbine unit according to claim 37, wherein the one or more stators is located on the common shaft. 39. The turbine unit according to claim 6, wherein the reversed orientation of the driving turbine blade set with respect to the pumping turbine blade set is such that the blades of the driving turbine blade set are reversed in a 1800 manner from the blades of the pumping turbine blade set. 40. The turbine unit according to claim 39, wherein the blades of each turbine blade set are adjustable. 41. The turbine unit according to claim 1, wherein the turbine unit is connected to one or more generators to convert the rotational movement of the turbine blade sets into electrical energy. 42. The turbine unit according to claim 41, wherein the turbine unit is connected to the generator via the gearbox.
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