| 摘要 |
<p>A pump comprising a guide (1) forming a closed loop of variable radius and at least one piston assembly (2). The piston assembly (2) comprises a chamber (4) and a piston (5) slidably mounted within the chamber (4). A first end of the piston assembly (T) is arranged to follow the guide (1) and a second distant end of the piston assembly (2) is mounted proximate the radial centre axis of the loop. At least one of the guide (1) and the piston assembly (2) are arranged to rotate causing relative rotational movement between the guide (1) and the piston assembly (2). The relative rotational movement causes the piston (5) to reciprocally displace within the chamber (4) for pumping a fluid from an inlet (22) to an outlet (20) of the pump.</p> |
