| 摘要 |
PURPOSE:To take out axial momentum by a piston by a method wherein intermittent blow-up phenomenon generated from the collapse of a vapor pressure equibrium between an evaporating section and a condensing section due to the inflow and outflow of heat is utilized. CONSTITUTION:When heat flows into the evaporating section from a heat source, the column of vapor in liquid is expanded instantaneously and the phenomenon that the operating liquid is blown up against the piston 3 is caused. A kinetic energy, generated by the collision of the operating liquid against the internal surface of the piston, and vapor pressure energy lift up the piston 3 and the momentum is taken out of a vessel by a rod 9. The condensing section 6 begins to be exposed in accordance with the movement of the piston and the operating liquid as well as the vapor, contacted with the condensing section, are cooled whereby the vapor begins to be condensed. When the vapor pressure has become lower than an external pressure, the piston is decelarated by a downward force and begins a downward motion. At the same time, the operating liquid is recirculated into the evaporating section 5 by a reaction due to collision against the piston and the force of gravity. Then, the piston contacts with a stopper 8 in the vessel and the motion thereof is stopped. |
