| 摘要 |
PURPOSE: A device for injecting refrigerant oil of evaporator is provided to prevent shortage of the refrigerant oil on initial driving of an air conditioning system. CONSTITUTION: An injection part(4) of refrigerant oil, lubricating and smoothing circulation of refrigerant, is formed on a compressor(1). An auxiliary injection part(5) is formed on an evaporator(3) for auxiliary injection of refrigerant oil so that auxiliary refrigerant oil is stored in the evaporator. 70-80% of refrigerant oil is injected and stored in the compressor while 20-30% of refrigerant oil is injected and stored in the evaporator. When an air conditioning system is initially driven, refrigerant oil stored in the evaporator is sent to the compressor as pressure generates and refrigerant circulates.
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