| 摘要 |
PCT No. PCT/DK95/00294 Sec. 371 Date Feb. 14, 1997 Sec. 102(e) Date Feb. 14, 1997 PCT Filed Jul. 7, 1995 PCT Pub. No. WO96/07065 PCT Pub. Date Mar. 7, 1996A control arrangement for cooling of an apparatus comprising a compressor, a condenser, and at least one branch with an expansion valve and an evaporator in series, contains a controller, a superheat temperature measuring device, and an ambient temperature sensor. The controller controls the expansion valve for maintaining the superheat temperature substantially at the desired value. The flow of coolant to the evaporator is controlled by the signal from the temperature sensor for maintaining the ambient temperature constant. The controller operates continuously and in two operating modes in which the first mode the superheat temperature is controlled to the maximum admissible state of fill of liquid coolant in the evaporator and is switchable to a second mode in which the state of fill of liquid coolant is controlled by the expansion valve.
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