| 摘要 |
<p>An engine heat pump, comprising a main compressor (2) driven by an engine, an indoor heat exchanger (8), an outdoor heat exchanger (5), an expansion valve (23) for the indoor heat exchanger, an expansion valve (21) for the outdoor heat exchanger, an engine waste heat recovery device (6) installed parallel with the outdoor heat exchanger, an expansion valve (22) for the engine waste heat recovery device, and an auxiliary compressor (3), wherein the auxiliary compressor compresses refrigerant passed through the engine waste heat recovery device at the time of heating and the refrigerant discharged from the auxiliary compressor is merged with refrigerant discharged from the main compressor, and the volumetric capacity of the auxiliary compressor is reduced less than that of the main compressor.</p> |
