Apparatus for air conditioning a vehicle, in particular an electric vehicle

Apparatus for regulating the temperature in the passenger space of a motor vehicle comprising an air circuit having a first section subdivided over a fraction of its length into a first branch and a second branch disposed mutually in parallel and containing respectively a first condenser and a first evaporator, and a second section located downstream of the first section, subdivided over a fraction of its length into a third branch and a fourth branch disposed mutually in parallel, the third branch containing a second evaporator and the fourth branch containing a second condenser, means for circulating a refrigerant between Said first evaporator and said first condenser and between said second evaporator and said second condenser, means for producing a first flow of air in the first section, means for producing a second flow of air in the second section, selective shut-off means capable of allowing or preventing the circulation of said flows of air in each of the first, second, third and fourth branch, a controlled choke flap capable of interrupting communication between the first and second sections, an external air inlet at the upstream end of the first section, an air outlet to the exterior of the motor vehicle disposed adjacent the downstream end of the first section, a second external air inlet and a recirculation air inlet disposed adjacent the upstream end of the second section having means for regulating the proportions of external air and air in recirculation, and an air outlet to the passenger space disposed adjacent the downstream end of the second section.