| 摘要 |
PURPOSE:To diminish variation of temperature of working fluid for relaxing thermal fatigue of components by connecting a cooler, a gas occluded alloy receiver and a heater in series for providing passages selectably connecting each of them to a displacer cylinder. CONSTITUTION:A cooler 11, a gas occluded alloy receiver 40 and a heater 10 are connected together in series and respective passages 31, 36, 37 and 31 are opened to a displacer cylinder 13 via check valves 32, 33, 34 and 35. When a displacer piston 18 is moved upward, the check valve 33 is made to close and the valve 32 is made to open, thereby gas in the upper side of the cylinder 13 flows into the cooler 11 via the passage 31 for passing through the occluded alloy receiver 40 to be discharged to the down side of the cylinder 13 form the passage 37 via the check valve 35. At this time, the fluid cooled in the cooler 11 is raised in its temperature and lowered in its pressure by occluding exothermic reaction of gas occluded alloy. And when the piston 18 goes down the fluid heated in the heater 10 in the opposite way, is lowered in its temperature and raised in its pressure in the opposite way and then discharged to the upper side of the cylinder 13. |
