CONTAINER REFRIGERATION DEVICE

摘要

PROBLEM TO BE SOLVED: To realize countermeasures against heat of a gas supply device including a pump mechanism part at low cost.SOLUTION: A container refrigeration device (10) comprises: an outside fan (25) for supplying outside air to a radiator (22); and a gas supply device (30) for generating nitrogen-enriched air having a higher nitrogen concentration than that of ambient air and supplying it to an inside space. The gas supply device (30) comprises: a unit case (70) in which a cooling air flow inlet (79a) and a cooling air flow outlet (79b) are formed; and a pump mechanism part (31P) housed in the unit case (70) to suck and compress ambient air. The container refrigeration device (10) comprises an exhaust passage (85) for connecting the unit case (70) and the negative pressure side of the outside fan (25) so that air in the unit case (70) is sucked out from the cooling air flow outlet (79b) by the outside fan (25).SELECTED DRAWING: Figure 11