CIRCULATING LOOP OF A REFRIGERANT FLUID FOR THE AIR CONDITIONING OF A VEHICLE

摘要

The invention relates to a loop (1) for circulation of a refrigerant fluid (7) for the cabin air conditioning of a vehicle, said loop being able to provide at least one of the modes of operation of air conditioning, heating, dehumidification and heat recovery, said loop comprising the following elements: a compressor (2), an external heat exchanger (3), two internal heat exchangers (4, 5), including a first interior heat exchanger (4) which is able to exchange heat between the coolant (7) and fresh air to blow into the passenger compartment and / or the air of the recycled cabin, and actuators that are able to control the flow of the fluid and / or the flow direction of the fluid (7). In cooling mode, the fluid (7) discharged by the compressor (2) is first cooled in the external heat exchanger (3) and then in the second internal heat exchanger (5) with at least one cold source.