| 摘要 |
PURPOSE: A heat pump having a twin rotary compressor is provided to improve heating performance by performing gas injection when the high heating capacity is required. CONSTITUTION: A heat pump comprises a twin rotary compressor(6), a condenser, a first expanding tool(10), a vapor liquid separator, a second expanding tool(14), a third expanding tool(18), and a link path. The condenser condenses the refrigerant compacted in the twin rotary compressor. The first expanding tool expands the condensed refrigerant. A vapor and liquid refrigerant separator divides the liquid coolant and vapor refrigerant from the swelled refrigerant. The second expanding tool expands the liquid coolant separated from the vapor and liquid refrigerant separator. The refrigerant, expanded in the third expanding tool, is compacted in a second rotary compression part of the twin rotary compressor.
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