| 摘要 |
PROBLEM TO BE SOLVED: To enhance a heating efficiency by a heater. SOLUTION: An external combustion engine includes a tubular container 10 into which an working medium 14 is flowably sealed in a liquid state, a heater 15 arranged at one end side of the container 10, for heating to evaporate the working medium 14 by externally supplied heat, a cooler 19, arranged at the other end side of the arrangement area of the heater 15 in the container 10, for cooling to condensate vapor of the working medium 14 evaporated by the heater 15, and an output unit 11, communicating with the other end portion of the container 10, for converting displacement of liquid portion of the working medium 14 caused by volume fluctuations of the working medium 14 associated with evaporation and condensation of the working medium 14 into mechanical energy, and outputting it. The heater 15 is formed such that areas near the cooler 19 have thick wall, and areas apart from the cooler 19 have thin wall. COPYRIGHT: (C)2009,JPO&INPIT
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