| 摘要 |
PURPOSE: A heat pump is provided to improve heating capacity by injecting refrigerants into the inside a scroll compressor through two refrigerant injection lines. CONSTITUTION: A heat pump comprises a main circuit, a first refrigerant injection line(52), and a second refrigerant injection line(62). The main circuit comprises a scroll compressor(10), a condenser, expansion units(30,40), and an evaporator(70). The condenser condenses refrigerants passing through the scroll compressor. The first refrigerant injection line is branched between the condenser and the evaporator and is connected to one side of a gap between the inlet and outlet of the scroll compressor. The second refrigerant injection line is branched between the condenser and the evaporator and is connected to the other side of the gap between the inlet and outlet of the scroll compressor. |
