Abstract: An air conditioning system is provided, particularly for a vehicle having a main air conditioning unit, an auxiliary air conditioning unit, wherein both the main air conditioning unit and the auxiliary air conditioning unit contain a blower, an evaporator and a heater core, a cold pass is attached to the evaporator, a hot pass is affiliated to the heater core and the cold pass is separated from the hot pass by at least one temperature door. By an air conditioning system, especially for a vehicle, which uses the conditioned air in the vehicle cabin for engine cooling, an additional pass is arranged before the heater core in the auxiliary air conditioning unit wherein said hot pass ends in a body exhauster during the cooling mode of said auxiliary air conditioning unit.

Abstract: A method to control coolant flow through an engine, especially for a motor vehicle, wherein the coolant is heated by the engine and cooled by a radiator and the coolant flow depends on the number of rotations of the engine. To prevents cavitations and high pressures on heat exchangers and to allow an optimal coolant flow, a magnetic field for controlling magneto rheological fluid to regulate the coolant flow is used.

Abstract: A method to control coolant flow through an engine, especially for a motor vehicle, wherein the coolant is heated by the engine and cooled by a radiator and the coolant flow depends on the number of rotations of the engine. To prevents cavitations and high pressures on heat exchangers and to allow an optimal coolant flow, a magnetic field for controlling magneto rheological fluid to regulate the coolant flow is used.

Abstract: A motor vehicle having air conditioning unit with a condensate drain and at least one water reservoir for a water using unit, especially a water injection unit, with an supply line to the water using unit. The motor vehicle allows a solid filling of water reservoir the condensate of the air conditioning unit to be filled into the water reservoir.

Abstract: A non idle air condition system, especially for a vehicle, is provided that includes a blower, a main evaporator, an auxiliary evaporator for a non idle mode and a heater core. The non idle air condition system needs less space by a high airflow performance, and uses the same condensate drains by the main evaporator and the auxiliary evaporator.

Abstract: An air conditioning system is provided, particularly for a vehicle having a main air conditioning unit, an auxiliary air conditioning unit, wherein both the main air conditioning unit and the auxiliary air conditioning unit contain a blower, an evaporator and a heater core, a cold pass is attached to the evaporator, a hot pass is affiliated to the heater core and the cold pass is separated from the hot pass by at least one temperature door. By an air conditioning system, especially for a vehicle, which uses the conditioned air in the vehicle cabin for engine cooling, an additional pass is arranged before the heater core in the auxiliary air conditioning unit wherein said hot pass ends in a body exhauster during the cooling mode of said auxiliary air conditioning unit.