| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a refrigerating cycle device which can estimate a discharge pressure with high accuracy even when an operation of the refrigerating cycle device is transient. <P>SOLUTION: A discharge pressure estimating means 11 estimates a discharge pressure from a current value supplied to a compressor 1, a temperature of a refrigerant circulating in an evaporator 4, and a suction temperature. To correctly estimate the discharge pressure, an overheat level sucked by the compressor 1 is recognized using a suction temperature detecting means 9 even when suction overheat level changes because a heat exchanger is provided between the evaporator 4 and the compressor 1. <P>COPYRIGHT: (C)2013,JPO&INPIT |
