| 摘要 |
<P>PROBLEM TO BE SOLVED: To ensure that a protection function of a compressor operates before a compressor temperature (temperature of a sealed container) reaches an operation limit temperature, even in a negative pressure operation state where there is a little of or return inhaled refrigerant or no refrigerant returns, and to improve the reliability of the protection function. <P>SOLUTION: When a container temperature Tc is a predetermined operation limit temperature Tmax or lower and the container temperature Tc is higher than a discharge gas temperature Tg even in either of a time point t1 when a predetermined time has passed after the compressor starts operation and a time point t2 after a predetermined time has passed from the time point t1, the operation of the compressor is stopped. <P>COPYRIGHT: (C)2012,JPO&INPIT |
