Abstract: A heating and air conditioning device includes a warm air path that leads through a heat exchanger to a mixing chamber and to outlets of the heating and air conditioning device, and a cold air path that leads from the evaporator to the mixing chamber and the outlets of the heating and air conditioning device. A warm air duct is located at an end of the warm air path and an entrance to the mixing chamber. A cold air duct is located at the end of the cold air path and the entrance to the mixing chamber. One or more openings are formed on one of a side wall of the warm air duct and a side wall of the cold air duct so that air can flow from the cold air path into the warm air duct and from the warm air path into the cold air duct.

Abstract: A heat exchanger unit that enables a quick interchanging of function, form and size of the different heat exchanger modules. The interchanging may be possible in regard to the sequence of the individual heat exchanger modules. The heat exchanger unit in includes inserts configured such that appropriately configured cassettes can be inserted, and an inner shape of the cassettes is configured so that different heat exchanger modules can be accommodated therein. The cassettes are thus designed specific to the heat exchanger, while the outer shape of all cassettes conforms to the shape of the uniformly configured inserts.

Abstract: A heating and air conditioning device includes a warm air path that leads through a heat exchanger to a mixing chamber and to outlets of the heating and air conditioning device, and a cold air path that leads from the evaporator to the mixing chamber and the outlets of the heating and air conditioning device. A warm air duct is located at an end of the warm air path and an entrance to the mixing chamber. A cold air duct is located at the end of the cold air path and the entrance to the mixing chamber. One or more openings are formed on one of a side wall of the warm air duct and a side wall of the cold air duct so that air can flow from the cold air path into the warm air duct and from the warm air path into the cold air duct.

Abstract: A blower air suction device of a motor vehicle air conditioner includes a blower with a vertical arrangement including a blower motor, a blower rotor, and a blower opening, wherein the blower is ensheathed by a blower scroll, and an air inlet housing with a fresh air opening formed in a front wall and with an ambient air opening. The installation of blower is suspended, that is, with the blower rotor under the blower motor, and the air inlet housing is arranged in the process beneath the blower.

Abstract: An air conditioning apparatus for a ventilation, heating, and air conditioning of an interior of a vehicle with a foot vent, in which a shape of the foot vent is substantially rectangular with a dimension of the rectangular shape in a direction of travel of the vehicle larger than a dimension of the rectangular shape transverse to the direction of travel of the vehicle, the rectangular shape optimizing an installation space, an efficiency, and acoustics of the air conditioning apparatus.

Abstract: A blower air suction device of a motor vehicle air conditioner includes a blower with a vertical arrangement consisting of a blower motor, a blower rotor, and a blower opening, wherein the blower is ensheathed by a blower scroll, and an air inlet housing with a fresh air opening formed in a front wall and with an ambient air opening. The installation of blower is suspended, that is, with the blower rotor under the blower motor, and the air inlet housing is arranged in the process beneath the blower.

Abstract: A heat exchanger unit that enables a quick interchanging of function, form and size of the different heat exchanger modules. The interchanging may be possible in regard to the sequence of the individual heat exchanger modules. The heat exchanger unit in includes inserts configured such that appropriately configured cassettes can be inserted, and an inner shape of the cassettes is configured so that different heat exchanger modules can be accommodated therein. The cassettes are thus designed specific to the heat exchanger, while the outer shape of all cassettes conforms to the shape of the uniformly configured inserts.