| 摘要 |
<P>PROBLEM TO BE SOLVED: To appropriately and promptly control heating capacity during heating operation by hot gas. <P>SOLUTION: This refrigerating device for a container includes: a refrigerant circuit (20) formed by sequentially interconnecting a compressor (30), a condenser (31), a main expansion valve (32) and an evaporator (33), having a hot gas bypass circuit (22) for sending a compressed refrigerant in the compressor (30) to the evaporator (33) by bypassing the condenser (31) and the main expansion valve (32) and performing a refrigerating cycle; and a compressor control part (81) controlling operation rotational frequency of the compressor (30) so that an interior temperature becomes a target temperature during heating operation for heating the interior side of the container by the evaporator (33), in a circulation flow for making the compressed refrigerant in the compressor (30) return to the compressor (30) via the hot gas bypass circuit (22) and the evaporator (33). <P>COPYRIGHT: (C)2011,JPO&INPIT |
