| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigeration device for land transportation capable of heating refrigerant oil in a compressor, which has been at a stop, without consuming power of a battery.SOLUTION: A refrigeration device for land transportation comprises: an interior heat exchanger which is installed inside a cool box on a transportation vehicle; an exterior heat exchanger which is installed outside the cool box; a compressor 14 which compresses a coolant and has an oil sump 16 to accumulate refrigerant oil; a heat generation element (a generator 21 and a sub-engine 23) which can supply heat to the compressor 14 while the same has been at a stop; and a machine room 8A where the compressor 14 and the heat generation element are stored in an air passage. The heat generation element is operated when a predetermined condition is met while operation of the compressor 14 is stopped.SELECTED DRAWING: Figure 3 |
