Robert P. Scaringe,Gregory S. Cole,Daniel Lambert,Daniel Staples
申请号：
US12978723
公开号：
US09050360B1
申请日:
2010.12.27
申请国别(地区):
US
年份:
2015
代理人:
摘要：
A vapor compression thermal control system having at least one electrically powered evaporator fan and an apparatus for preventing compressor overloading apparatus having a sensor that measures temperature of air entering the evaporator. That measured temperature is compared with at least one predetermined temperature setting to activate a predetermined evaporator blower on/off duty cycle when the measured temperature exceeds the predetermined temperature. Alternatively, the apparatus can have a sensor that measures temperature of air being used to cool the condenser, and that measured temperature is then compared with at least one predetermined temperature setting to activate a predetermined evaporator blower on/off duty cycle when the measured temperature exceeds the predetermined temperature. In either case, it is evaporator air flow that is modulated when the system is operated as a heat pump. For liquid cooled evaporators, however the circulation pump instead of the fan is modulated.
