| 摘要 |
For use with a heat pump to increase cooling and heating efficiency, between an outdoor condenser and an indoor evaporator, a refrigerant receiver or sub-cooler is provided within the high pressure liquid refrigerant portion of the system, including at least one high flow, low pressure release check valve having an internal control element with a refrigerant turbulence producing backside that serves as an incremental expansion device to cool, by incremental expansion, and heat, by turbulence, the high pressure liquid refrigerant.
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