F - Mech Eng,Light,Heat,Weapons – 04 – C
Patent
F - Mech Eng,Light,Heat,Weapons
04
C
F04C 2/30 (2006.01) F01C 21/08 (2006.01) F04C 2/344 (2006.01) F04C 11/00 (2006.01) F04C 15/00 (2006.01) G01F 3/06 (2006.01) G01F 3/08 (2006.01)
Patent
CA 2068640
- 12 - DUAL REVOLVING VANE METER-MOTOR-PUMP Abstract of Disclosure A positive displacement fluid handling apparatus comprises a pair of cylindrical cavities (2 and 3) connected to one another by a connecting flow passage (4) and connecting an inlet port (5) to an outlet port (6), wherein each of the pair of cylindrical cavities (2 and 3) includes a vane (9) extending from a hub (10) rotatably disposed about the central axis (8) of the cylindrical cavity and a sealing roller (11) with an axial cavity (13) rotatably disposed about the central axis (14) thereof in such an arrangement that the combination of the vane (9), the hub (10) and the sealing roller (11) under rolling contact with the hub (10) at one side and engaging an axially disposed elongated recess (12) included in the cylindrical wall of the cylindrical cavity at the other side provides a barrier against fluid flow thereacross, and the two combinations of those elements respectively included in the pair of cylindrical cavities are geared to each other in such a way that the two vanes (9 and 16) rotate at the same speed in two opposite directions and at least one of the two combinations of those elements provides a barrier against fluid flow thereacross located between the two ports (5 and 6) at all instances.
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