F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
F04D 1/00 (2006.01) F04D 13/06 (2006.01) F04D 17/12 (2006.01) F04D 25/06 (2006.01) F04D 31/00 (2006.01)
Patent
CA 2066672
2066672 9104417 PCTABS00003 Contra-rotating impeller assemblies in a pump-compressor unit comprise support plates (6, 7; 101, 102, 110; 203, 204) opposed along a common axis and mounting concentric annular arrays of impeller blades (14, 15; 115, 116; 205-208), the blades on each plate extending close to the other plate, preferably with support rings (25) connecting their outer edges and mounting means sealing to the other plate. The support plates are electrically rotated in contrary directions about the common axis and the blades are so located that fluid is moved radially through the arrays of the support plates alternatively. A support plate (110) can be received between two contra-rotating plates (101, 102) with blades providing radial flows in opposite directions. Annular support plates (204) can be carried within a sleeve (202) to co-operate with plates (203) mounted on a coaxial shaft (201).
Cassan Maclean
Framo Developments (uk) Limited
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