A complementary heating system uses components of an A/C loop. Hot refrigerant vapour is injected in the evaporator where it heats up the airflow penetrating the passenger cabin. The energy is provided by the compressor compressing the refrigerant against a gas expansion device. A 3 -way diversion valve makes it possible to switch between the classical A/C operation and the new additional heating function. The Additional Heating System (AHS) has been installed on cars and tested in a climatic windtunnel and during field tests.
Additional Heating System Based on an A/C Loop
Sae Technical Papers
1995 Vehicle Thermal Management Systems Conference and Exhibition ; 1995
1997-05-19
Aufsatz (Konferenz)
Englisch
Valves , Compressors , Gases , Refrigerants , Switches
Additional Heating System Based on an A/C Loop
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