| 摘要 |
PURPOSE:To make a conventional spring tube unnecessary and eliminate the deterioration of reliability of whole of the FPSE driven refrigerating machine due to the fatigue breakage by a method wherein an evaporator or condenser, moving in the same speed as the piston of moving heat engine, is provided. CONSTITUTION:The piston 38 is rest substantially with respect to a sealed vessel 28 while the power piston 33 and a displacer 32 are moved into up-and- down direction. A compressor is constituted of the piston 38, suction valves 41, 42 and delivery valves 43, 44 and low-temperature low-pressure gas phase refrigerant in suction chambers 45, 46 is compressed to high-temperature high- pressure gas phase refrigerant by the relative motion between the sealed vessel 28 and the power piston 33, then the refrigerant is flowed into the delivery chambers 47, 48 of the compressor. Said refrigerant is flowed into a heat exchanger 52 through a flow path 50 and is cooled and compressed to obtain high-pressure liquid phase refrigerant, thereafter, the temperature and pressure thereof are reduced by passing it through an expansion valve 59, further, low- temperature low-pressure gas phase refrigerant is obtained by flowing it into the heat exchanger 51 to heat and evaporate it, then it is flowed into the suction chambers 45, 46 again through the flow path 49. |
