| 摘要 |
REVOLVING-ROTATING VANE METER-MOTOR-PUMP A positive displacement fluid handling apparatus comprises a closed loop cavity (45) with continuously varied cross sectional areas between the maximum and minimum values respectively occurring at two diametrically opposite sections thereof, and a plurality of vanes (40) disposed within and traveling through the closed loop cavity (45) and rotatably supported by a rotor (41), wherein the revolving motion of the vanes (40) are coupled to the rotating motion of the rotor (41) by positively meshing gearing in such a way that the individual vane (40) revolves about its own axis (39) at one half of the rotary speed of the rotating motion of the rotor (41) about the rotor axis (38), and the cross sectional areas of the closed loop cavity (45) are closely matched to the areas of sweep of the vanes (40) throughout the closed loop cavity (45).
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