CATEM GMBH & CO. KG Patent applications |
Patent application number | Title | Published |
20090192671 | Electric Auxiliary Heating Unit for a Motor Vehicle - An electric auxiliary heating unit for a motor vehicle reliably avoids temperature overshoots of the heated air, especially during acceleration phases of the vehicle. The temperature of adjustment the discharged hot air is adjusted in dependence upon the vehicle speed. This is preferably done via a stored characteristic field via which a plurality of vehicle parameters, such as the vehicle speed, the opening condition of the convertible top, the outside temperature, etc., can easily be taken into account. The temperature of the incoming air can also be derived from temperature values which are already available in the vehicle. This heating can preferably be used locally in the vehicle, e.g. in the vehicle seat or in the rear of the passenger compartment. Temperature fluctuations in the heated air can be avoided reliably and easily even in the case of dynamically varying operating conditions of the motor vehicle. | 07-30-2009 |
20090189420 | Electric Auxiliary Heating Unit for a Motor Vehicle - An electric auxiliary heating unit reliably avoids temperature overshoots of the heated air. To this end, the temperature of the air flowing into the heating is determined and converted into a heating power for controlling the heating elements. This is preferably done via a stored characteristic field via which a plurality of vehicle parameters, such as the vehicle speed, the opening condition of the convertible top, etc., can be taken into account. Also the temperature of the incoming air can be derived from temperature values which are already available in the vehicle. A user-friendly electric heating can be realized very easily in this way. Temperature fluctuations in the heated air can be avoided reliably and easily even in the case of dynamically varying operating conditions of the motor vehicle. | 07-30-2009 |
20090026194 | Method of Manufacturing an Electric Heating Device and Electric Heating Devices - An electric heater, comprises a heating block held in a housing and including parallel layers of heat-emitting and heat generating elements. A grid arrangement covers the respective frame apertures in the housing and reinforces the housing. First struts of the grid arrangement, extending at right angles with respect to the layers, are assigned to the housing, and second struts extending parallel with respect to the layers are defined by the heating block. Moreover, a heat generating element of an electric heater, comprises a position frame made of an insulating material and defining receptacles arranged side by side each for at least one PTC heating element. The receptacles are arranged between conductor paths against which the PTC heating elements are placed in an electrically conductive manner. | 01-29-2009 |
20090026191 | Method of Manufacturing an Electric Heating Device and Electric Heating Devices - The present invention relates to a method of manufacturing an electric heating device, comprising a housing in which a heating block is held with the pretensioning force of at least one spring element located approximately at the same level as the heating block in its post assembly position and which defines opposite housing apertures between which the heating block is exposed, wherein the heating block is introduced into a housing part and the heating block is enclosed in the housing by another housing part. The spring element is brought into its assembled position and pretensioned when the housing is being closed to enclose the heating block. The present invention further relates to an electric heating device which can be employed in the method according to the invention and which can be relatively easily manufactured by injection molding. | 01-29-2009 |
20090026189 | Electrical Heating Device - An electrical heating device includes a flat heating block, which is held in a housing forming oppositely situated frame openings and which comprises parallel layers of heat dissipating and heat generating elements. The heat generating elements on the face side have fitting elements projecting beyond the heating block, and fitting element receptacles assigned to these fitting elements are formed on the housing. The fitting elements and the assigned fitting element receptacles of different heat generating elements are formed such that the heat generating elements cannot be inserted at just any random place in the housing. | 01-29-2009 |
20090020619 | Electrical Auxiliary Heater - An auxiliary heater for a motor vehicle has a layer structure comprising a heat generating element with at least one PTC heating element and printed conductors contacting the PTC heating element on both sides for powering the PTC heating element and at least one heat dissipating element, connected for thermal conduction with the heat generating element. A housing accommodates the layer structure as well as contact lugs for the connection of the auxiliary heater to a power source. For providing the best possible and simplist connection to a power source via a plug element, and with regard to the economical manufacture of the auxiliary heater, the contact lugs are formed by stamped sheet metal pieces which are electrically connected to selected printed conductors. | 01-22-2009 |
20090020515 | Electric Heating Device, in Particular for Motor Vehicles - An electric heating device that provides additional heating for motor vehicles includes several heating elements assembled to form a heating block, and a controller for controlling the heating elements. The controller forms a constructional unit together with the heating block. Contact and/or cooler elements extending between the controller and the heating block. The controller is held at a control means support. Between the controller support and a heating block housing accommodating the heating block, sealing elements are provided through which the contact or cooler elements project and which are sealed by clamping between the controller support and the heating block housing. | 01-22-2009 |