| 摘要 |
<p>The device uses a float (F) initially containing water, which is pumped out by a piston/cylinder unit (P.C). The float is carried at the end of an arm (TA) which can oscillate about a horizontal shaft (a) positioned at the water surface. The arm is coupled to the shaft (a) via a ratchet mechanism, allowing free rotation of the shaft in one direction, while allowing the arm to fall back below the surface when the water re-enters the float (F). The float (F) drops to a level beneath the water surface below that of the cylinder (C) so that the water within the float and that within the hollow tube (TA) acting as the oscillating arm, slowly flows into the cylinder under the effect of gravity. The piston (P) is acted on by the press of the column of water contained in the hollow tube, to allow compression of a volume of air (V) acted on by the opposite face of the piston (P), the piston movement aided by an electric motor (Me).</p> |
