A counter rotating helico-axial pump is provided, the pump comprising: (a) an inner rotor comprising a plurality of outwardly extending helico-axial impeller vanes; (b) a hollow outer rotor comprising a plurality of inwardly extending helico-axial impeller vanes; (c) a single driving device configur
A counter rotating helico-axial pump is provided, the pump comprising: (a) an inner rotor comprising a plurality of outwardly extending helico-axial impeller vanes; (b) a hollow outer rotor comprising a plurality of inwardly extending helico-axial impeller vanes; (c) a single driving device configured to drive the inner rotor or the hollow outer rotor; and (d) a force transmission coupling joining the inner rotor and the hollow outer rotor and configured to permit rotation of the inner rotor and hollow outer rotor in opposite directions; wherein at least a portion of the inner rotor is disposed within the hollow outer rotor, and wherein the inner rotor, the hollow outer rotor and the helico-axial impeller vanes define a fluid flow path, and wherein the inner rotor and hollow outer rotor are configured such that at least some of adjacent helico-axial impeller vanes are configured to rotate in opposite directions.
대표청구항▼
1. A counter rotating helico-axial pump comprising: (a) an inner rotor comprising one or more outwardly extending helico-axial impeller vanes;(b) a hollow outer rotor comprising one or more inwardly extending helico-axial impeller vanes;(c) a single driving device configured to drive the inner rotor
1. A counter rotating helico-axial pump comprising: (a) an inner rotor comprising one or more outwardly extending helico-axial impeller vanes;(b) a hollow outer rotor comprising one or more inwardly extending helico-axial impeller vanes;(c) a single driving device configured to drive the inner rotor or the hollow outer rotor; and(d) a force transmission coupling joining the inner rotor and the hollow outer rotor and configured to permit rotation of the inner rotor and hollow outer rotor in opposite directions;wherein at least a portion of the inner rotor is disposed within the hollow outer rotor, and wherein the inner rotor, the hollow outer rotor and the helico-axial impeller vanes define a fluid flow path, and wherein the inner rotor and hollow outer rotor are configured such that at least some of adjacent helico-axial impeller vanes are configured to rotate in opposite directions. 2. The counter rotating helico-axial pump according to claim 1, wherein the driving device drives the inner rotor. 3. The counter rotating helico-axial pump according to claim 1, wherein the driving device drives the hollow outer rotor. 4. The counter rotating helico-axial pump according to claim 1, wherein the force transmission coupling mechanically joins the inner rotor and the hollow outer rotor. 5. The counter rotating helico-axial pump according to claim 4, wherein the force transmission coupling is a planetary gear assembly. 6. The counter rotating helico-axial pump according to claim 1, wherein the force transmission coupling magnetically joins the inner rotor and the hollow outer rotor. 7. The counter rotating helico-axial pump according to claim 6, wherein the force transmission coupling is a magnetic gearbox assembly. 8. The counter rotating helico-axial pump according to claim 1, wherein there is no housing assembly. 9. The counter rotating helico-axial pump according to claim 1, not comprising a pump housing. 10. The counter rotating helico-axial pump according to claim 9, wherein the pump housing comprises an axial fluid inlet and axial fluid outlet. 11. A counter rotating helico-axial pump comprising: (a) an inner rotor comprising one or more outwardly extending helico-axial impeller vanes;(b) a hollow outer rotor comprising one or more inwardly extending helico-axial impeller vanes;(c) a single driving device configured to drive the inner rotor or the hollow outer rotor; and(d) a force transmission coupling joining the inner rotor and the hollow outer rotor and configured to permit rotation of the inner rotor and hollow outer rotor in opposite directions;wherein at least a portion of the inner rotor is disposed within the hollow outer rotor, and wherein the inner rotor, the hollow outer rotor and the helico-axial impeller vanes define a fluid flow path, and wherein the inner rotor and hollow outer rotor are configured such that at least some of adjacent helico-axial impeller vanes are configured to rotate in opposite directions, and wherein the inner rotor, the hollow outer rotor are disposed within a pump housing. 12. The counter rotating helico-axial pump according to claim 11, wherein at least some of adjacent helico-axial impeller vanes are configured to rotate in opposite directions, and at least some of at least some of adjacent helico-axial impeller vanes are configured to rotate in the same direction. 13. The counter rotating helico-axial pump according to claim 11, wherein the driving device drives the inner rotor. 14. The counter rotating helico-axial pump according to claim 11, wherein the driving device drives the hollow outer rotor. 15. The counter rotating helico-axial pump according to claim 11, wherein the force transmission coupling mechanically joins the inner rotor and the hollow outer rotor. 16. The counter rotating helico-axial pump according to claim 15, wherein the force transmission coupling is a planetary gear assembly. 17. The counter rotating helico-axial pump according to claim 11, wherein the force transmission coupling magnetically joins the inner rotor and the hollow outer rotor. 18. The counter rotating helico-axial pump according to claim 17, wherein the force transmission coupling is a magnetic gearbox assembly. 19. The counter rotating helico-axial pump according to claim 11, wherein the pump housing comprises an axial fluid inlet and axial fluid outlet. 20. The counter rotating helico-axial pump according to claim 11 wherein the force transmission coupling is configured to allow flow of a working fluid through a fluid flow path defined between the force transmission coupling and an inner wall section of the hollow outer rotor. 21. A counter rotating helico-axial pump comprising: (a) an inner rotor comprising one or more outwardly extending helico-axial impeller vanes;(b) a hollow outer rotor comprising one or more inwardly extending helico-axial impeller vanes;(c) a single motor configured to drive the inner rotor; and(d) a force transmission coupling mechanically joining the inner rotor and the hollow outer rotor and configured to drive the hollow outer rotor in a direction of rotation opposite that of the inner rotor;wherein at least a portion of the inner rotor is disposed within the hollow outer rotor, and wherein the inner rotor, the hollow outer rotor and the helico-axial impeller vanes define a fluid flow path, and wherein the inner rotor and hollow outer rotor are configured such that adjacent helico-axial impeller vanes are configured to rotate in opposite directions, and wherein the inner rotor, the hollow outer rotor, and the motor are disposed within a pump housing having an axial fluid inlet and an axial fluid outlet.
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이 특허에 인용된 특허 (11)
Gruner George P. (13 Bradley Rd. Andover MA 01810), Contra-rotating rotors with differential gearing.
Davies Richard G. (15 Dundonald Street Tainui ; Dunedin NZX) Davies Barry J. (15 Dundonald Street Tainui ; Dunedin NZX), Water jet propulsion unit for use in a jet boat.
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