Passenger compartment temperature control device for motor vehicle, has heat exchange unit with independent temperature control casings and flow control valves connected to respective semi-heat exchangers

摘要

The device has a reversible refrigerating loop (1) and a loop (9) provided with a heat exchanger (4) traversed by refrigerant and coolant fluids. A heat exchange unit is traversed by the coolant fluid and air flow intended to heat or cool passenger compartment. The heat exchange unit has independent temperature control casings (17a-17c), and flow control valves (24a-24c, 25a-25c) connected to respective semi-heat exchangers. An Independent claim is also included for a method for controlling temperature in a passenger compartment of a motor vehicle.