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1. (WO2008002819) DISPOSITIFS ROTATIFS DE TRANSFERT DE PRESSION
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

CLAIMS
1. In a rotary pressure transfer device wherein a substantially cylindrical rotor having a plurality of channels extending longitudinally therethrough revolves about its axis in a cavity between a pair of end covers that sealingly interface with opposite flat ends of the rotor, and wherein a high pressure first fluid and a low pressure second fluid are supplied to opposite ends of the rotor through passageways in said end covers resulting in the simultaneous filling with and discharge of fluids through passageways in the opposite end covers, the improvement which comprises:
an annular assembly of a plurality of juxtaposed tubes that are mutually interconnected with one another as a part of a rotor which has a plurality of flow channels that extend end to end thereof.

2. The improvement according to claim 1 wherein all said tubes are of essentially the same diameter.

3. The improvement according to claim 2 wherein the total cross-sectional area of the lumens of said tubes is equal to at least about 40% of the cross-sectional area of said rotor.

4. The improvement according to claim 2 wherein said tubes are of circular cross-section and are disposed so that they are in contact with one another along longitudinal lines throughout their lengths.

5. The improvement according to any one of claims 1 to 4 wherein said rotor has a tubular outer casing.

6. The improvement according to claim 5 wherein an outer circle of said tubes in said assembly are in contact with the interior surface of said outer tubular casing.

7. The improvement according to claim 5 wherein said rotor has an inner hub that is coaxial with said outer casing and said hub and casing radially flank said annular tube assembly.

8. The improvement according to claim 1 wherein said tubes have varying diameters, are arranged in a repeating pattern around said rotor and provide a plurality of longitudinal flow channels having a combined area in the lumens of the tubes and in the arcuate cross-sectional interstitial regions therebetween equal to at least about 80% of the total cross-sectional area of the annular region between said hub and said outer tubular casing.

9. The improvement according to claim 8 wherein a plurality of radial walls extend from said inner hub to said outer tubular casing, dividing said annular region into a plurality of pie-shape compartments that are annular segments having essentially the same size, and wherein a plurality of said tubes of varying diameter are disposed within each of said annular segments.

10. A rotary pressure transfer device which comprises:
a substantially cylindrical rotor having a plurality of channels extending longitudinally therethrough, means for mounting said rotor so that it revolves about a central longitudinal axis between a pair of end covers that sealingly interface with opposite flat ends of the rotor in which there are openings into said channels,
means for supplying a high pressure first fluid to one said end cover at one end of said rotor, and
means for supplying a low pressure second fluid to said end cover at the opposite end of the rotor,
said end covers each having inlet and discharge passageways that extend therethrough, and
said rotor comprising a plurality of juxtaposed parallel tubes which essentially fill the annular region between said hub and said outer tubular casing,
whereby entry of one fluid into each said channel at one end of the revolving rotor results in the simultaneous discharge of the other fluid from the opposite end of said channel through outlet passageways in the opposite end cover.

11. The device according to claim 10 wherein all said tubes are of essentially the same diameter.

12. The device according to claim 11 wherein said tubes are of circular cross-section and are disposed in contact with one another along longitudinal lines throughout their lengths.

13. The device according to any one of claims 10 to 12 wherein said rotor has a tubular outer casing and an interior coaxial hub.

14. The device according to any one of claims 10 to 12 wherein said tubes are of circular cross-section and the total cross-sectional area of the lumens thereof is at least about 40% of the cross-sectional area of said rotor.

15. The device according to claim 10 wherein said tubes have varying circular diameters and are arranged about said rotor in a repeating pattern and provide a plurality of longitudinal flow channels having a combined cross-sectional area in the lumens of the tubes and in the arcuate interstitial regions therebetween equal to at least about 80% of the total cross-sectional area of the annular region between a central hub and a coaxial outer tubular casing.

16. The device according to claim 10 wherein a plurality of radial walls extend from said hub to said outer tubular casing, dividing said annular region into a plurality of compartments that are annular segments of essentially the same size and wherein a plurality of said tubes of varying diameter are disposed in like patterns within each of said annular segments.