Patent ID: 9242527
Filing Date: 2016-01-26
CPC Classification: B60H,F25B

Claim Text:
1. A refrigerant circuit for a vehicle HVAC system, comprising: a circuit including, in order, a compressor, a tapping point, a first switching valve, a fourth heat exchanger, a refrigerant collector serving as a connection point, a first heat exchanger, a second switching valve connected to 1) the first heat exchanger, 2) an inlet of the compressor, and 3) an outlet of the compressor, and a first entering point that leads to the inlet of the compressor; a third heat exchanger in parallel with the fourth heat exchanger, the third heat exchanger located between the first switching valve and the refrigerant collector; a second heat exchanger in parallel with the first heat exchanger, the second heat exchanger located between the refrigerant collector and the first entering point; and a fifth heat exchanger in parallel with the first heat exchanger and the second heat exchanger and in series with the third heat exchanger; the refrigerant circuit configured to provide a combined cooling mode and heating mode, as well as a reheating mode for fresh air entering an interior of the vehicle.