| 摘要 |
<p>An apparatus comprises an axle (102) and at least one counterweight system (100), each comprising two weight systems (10, 20), of which the first weight system (10) comprises a closed cylinder (104) and therein a weight structure (108) and a movable fluid (120, 122) and the second weight system (20) comprises a weight structure (1 10), and a transmission mechanism (112) between the weight systems (10, 20). One weight structure (108, 110) weighs more than the other weight structure (110). As the heavier weight structure (108, 110) goes downwardly by the effect of gravitation, the transmission mechanism is arranged to transfer the other weight structure (110, 108) upwardly and the movable fluid (120, 122) is arranged to shift vertically inside the cylinder (104) due to the vertical movement of the heavier weight structure and through the shift to produce a torque with respect to the axle (102), which is arranged to provide rotation in the counterweight system (100) with respect to the axle (102).</p> |
