Abstract: The invention relates to a heating device having a housing and having a fluid duct which is arranged in said housing and which has a fluid inlet and a fluid outlet, wherein, in the housing, there is provided an element which generates an alternating magnetic field and which is separated from the fluid duct in a sealed manner by at least one wall, wherein furthermore, at least one metallic areal heating element is provided which can be heated by the alternating magnetic field, wherein the at least one areal heating element is arranged in the fluid duct.

Abstract: An electrically operated heating device, in particular for a heating or air conditioning system of a vehicle, is provided, comprising a heating register with a layered heating element, for converting electrical energy into heat, and two electrically insulating and heat-conducting insulating layers, which respectively make contact, at least in certain regions, with one side of the layered heating element. The insulating layers and the layered heating element are braced with one another, an abrasion-counteracting sliding layer being arranged between at least one of the insulating layers and the layered heating element. Alternatively or in addition, at least one of the insulating layers and the layered heating element have, at least in the region of their mutual contact surfaces, a material pairing with which the abrasion of the contact surfaces goes below a predetermined limit value.

Abstract: A heat exchanger having at least one electrical resistance heating element, two conductors connected electrically to the electrical resistance heating element to conduct electric current through the electrical resistance heating element and thereby to heat the electrical resistance heating element, a heat-conducting element for transferring heat from the electrical resistance heating element to a fluid to be heated, an electrical insulating element insulating electrically the two conductors and the at least one electrical resistance heating element, and at least one tube. The two conductors, the electrical insulating element, and the electrical resistance heating element are arranged within a cavity bounded by the tube. The heat exchanger has an adapter plate and a tube opening, each being arranged at an opening of the adapter plate, and the at least one tube being connected fluid-tight to the adapter plate, which is connected fluid-tight to an electronics housing and/or an HVAC system housing.

Abstract: An electric heating device includes a plurality of heating elements which are assembled to form a block. Such a heating element is formed from two metal plates, with the interposition of PTC elements. In order to increase the heat transfer, the metal plates are provided with corrugation ribs. Each heating element includes a pair of metal plates which are angled off essentially in the form of an L such that the angled-off sections are connected in a frictionally locking manner to each other. The angled-off sections are arranged at opposite ends of the heating elements and angled in opposite directions, the length of the angled-off sections of the metal plates being dimensioned such that angled-off sections of one pair of metal plates are in mutual abutment with angled-off sections of respectively adjacent pairs of metal plates.

Abstract: A process for heating the passenger compartment (10) in a motor vehicle, particularly an electric vehicle, having a heating device (12), which is supplied with an air current (40) extracted, via a waste-air duct (11), from the passenger compartment (10). The air current enters into the passenger compartment (10) from the heating device (12) via an intake-duct (13). In order to prevent internal misting of the vehicle's windows, even with a low heating capacity, at least one partial air current (40a), which is branched off from the air current (40) prior to entry into the passenger compartment (10), flows through a sorbent (15) such as zeolite or the like.

Abstract: An apparatus for heating and/or cooling a cabin, especially a passenger compartment of a motor vehicle, a sleeping cabin of a truck, or the like. To the cabin there is respectively connected an intake-air duct and a waste-air duct. The apparatus includes a sorption reactor which is filled with zeolite, or the like, and through which an air-current flows via corresponding ducts. In the adsorption phase of the reactor, the air-current takes up adsorption heat and releases moisture. After being cooled down via a humidifier, the air-current cools the intake-air current to the cabin. In addition, a heating device is provided for heating up the air current for the desorption of the reactor, the heated air current being evacuated with the moisture taken up from the sorbent.