| 摘要 |
PURPOSE:To obtain driving force through utilization of heat transfer of a heat medium caused by the temperature difference of the same, by sealing a heat medium such as Freon in an expansible container. CONSTITUTION:When no temperature difference exist between the lower end and the upper end of a container 6, a hole 12 is closed by a valve 10, so that the inner space of a lowe chamber 16 and that in an upper chamber 17 are isolated from each other. When a certain degree of temperature difference is caused, Freon liquid in the lower chamber 16 is vaporized and pressure in the chamber 16 is raised resultantly, so that the container 6 is expanded at the lower chamber 16 whereas the upper chamber 17 is contracted since pressure in the chamber 17 is lowered through contraction of Freon vapor. When the upper chamber 17 is contracted a certain length, the valve 10 is depressed by a pin 11 and the hole 12 is opened, so that Freon vapor in chamber 17 and Freon liquid in chamber 16 are replaced with each other and the pin 11 is brought back to its original position where it closes the hole 12. Then, the above process is repeated again. |
