Patent ID: 7370695

Claim:
Combined cooling/climate control system for motor vehicles for cooling the motor vehicle's electrical components and electronic components and air conditioning of a passenger compartment of the vehicle, comprising: a main ventilation duct; a fan for drawing in air disposed in the main ventilation duct; a heating unit downstream of the fan for selective warming of air, which is to be supplied to the passenger compartment; a cooling unit disposed upstream of the fan in the main ventilation duct; a set of first butterfly valves for controlling an air flow into the passenger compartment; a closed housing for the electrical and/or electronic components connected by an air supply pipe downstream of the fan and upstream of the heating unit, the air supply pipe being connected to the main ventilation duct and by an air discharge pipe upstream of the cooling unit, the air discharge pipe being connected to the main ventilation duct; whereby the electrical and/or electronic components are cooled with air drawn in by the fan, and a second butterfly valve for controlling the air flow into the air supply pipe; and a control unit configured to control the set of first butterfly valves, the second butterfly valve and the fan power to compensate for interference in the air flow into the passenger compartment by the air flow into the air supply pipe so as to maintain air conditioning of the passenger compartment at a constant or substantially constant level.