Patent ID: 6971440

Claim:
A heating or air-conditioning system for a motor vehicle, comprising: a housing; a heater that produces warm air situated within the housing; two cold-air ducts formed in the housing, the cold-air ducts being routed laterally around both sides of the heater and each cold-air duct having an associated cold-air flap that controls air flow therethrough; and partition walls within the housing, the partition walls forming four air-mixing chambers downstream of the heater in a direction of air flow, each individual mixing chamber including a warm-air control element that controls air flow therethrough and an air duct that feeds to an associated heating/air-conditioning zone, wherein the warm-air control element includes a plurality of moveable lamellae movable between an open position and a closed position to block heated air from the heater, wherein the lamellae of each warm-air control element in their open position are oriented to be partially open so as to deflect warm air laterally toward cold air entering the air-mixing chamber from the respective cold air duct.