REFRIGERATION DEVICE FOR REFRIGERATION VEHICLE

摘要

A refrigeration device for a refrigeration vehicle, used for cooling the inside of a cooling chamber of the refrigeration vehicle (10) and having a sub-engine (30), a compressor (40) driven by the sub-engine (30), and a refrigeration circuit (70) of a vapor compression refrigeration cycle, connected to the compressor (40). The refrigeration device further has a rotation speed control section (91) for linearly increasing and decreasing the speed of the sub-engine (30) so that cooling ability increases and decreases corresponding to refrigeration load, a battery (51) for storing electric power, and a generator (50) for generating electric power by rotation of the sub-engine (30) and storing it in the battery (51). A fan motor (7a) of the refrigeration circuit (70) is constructed so as to be selectively connectable to the generator (50) and the battery (51) in order that power supply is made by either of the generator (50) and the battery (51).