| 摘要 |
<p>PURPOSE:To obtain power switching operation of a car-mounted refrigerator by using both car engine output and a commercial power source selectively by driving a hydraulic motor by car engine output via a hydraulic pump so that an a.c. generator is operated by the output from the hydraulic motor. CONSTITUTION:A hydraulic pump 2 is operated by the output from a car engine 1 and the power from the pump 2 drives a hydraulic motor 3. At that time, the oil from the hydraulic motor 3 is returned to the hydraulic pump 2 via both a heat exchanger 4 and an oil tank 5, while it is also returned to the hydraulic pump 2 via a regulating valve 6. The output from the hydraulic motor 3 drives an a.c. generator 7 to produce a.c. power, and the generator 7 is connected to an inside-the-car terminal 9a side of a changeover switch 8 in order to operate a car-mounted refrigerator 10. On the other hand, by connecting the generator 8 to an outside-the-car terminal 9b, commercial power is supplied to the refrigerator 10. And terminal instruments for car illumination are arranged in parallel to the refrigerator 10 via a transistor 11.</p> |
