HEAT PUMP SYSTEM CAPABLE OF ADJUSTING AMOUNT OF REFRIGERANT STORED IN LIQUID RECEIVER

摘要

A heat pump system includes a liquid receiver valve that adjusts the amount of a refrigerant stored in a liquid receiver so that a circulation amount of the refrigerant that circulates the heat pump system can be adjusted according to a driving speed of a compressor and performance of the compressor and the heat pump system can be further improved. Also, since a plurality of liquid receiver refrigerant outlets can be selectively opened using a pressure difference between an inlet and an outlet of the compressor, active control can be performed.

主权项

1. A heat pump system comprising:
a compressor; a condenser; an expansion unit; and an evaporator, further comprising: a liquid receiver which is disposed so that a refrigerant condensed by the condenser flows into the liquid receiver in a direction of gravity and in which a plurality of liquid receiver refrigerant outlets are formed at sides of the liquid receiver so as to be spaced apart from each other by a predetermined gap in the direction of gravity; and a liquid receiver valve that adjusts an amount of the refrigerant discharged from the liquid receiver by selectively opening the plurality of liquid receiver refrigerant outlets based on a pressure difference between an inlet and an outlet of the compressor.