Borgwarner Ludwigsburg Gmbh

Borgwarner Beru Systems Gmbh

Eichenauer Heizelemente Gmbh & Co. Kg

Hans-Peter Etzkorn

Alexander Dauth

Michael Edgar Luppold

Rolf Merte

Klaus Lehmann

Frank Bartmann

Gerd Bräuchle

Norbert Ernst

Peter Schaefer

Jörg Weigold

Thomas Holzschuh

Stefan Brosig

Stephan Dick

Christian Dörrie

Juergen Kochems

Joerg Weigold

Jürgen Kochems

Martin Meeh

Described is a heating plate having a substrate made of metal, a heating layer and an insulation layer which is arranged between the heating layer and the substrate. It is provided according to this disclosure that the insulation layer bears an electrically conductive shielding layer and that the shielding layer is covered by a second insulation layer on which the heating layer lies. In addition, a flow heater having such a heating plate is disclosed.

Heating plate and flow heater having heating plate

Described is a supply circuit for a corona ignition device, with an input for connection to a direct voltage source, a first converter, a second converter, and an output for connecting a load. The two converters each generate an output voltage, which is provided on its secondary side and exceeds the input voltage. The two converters each contain a transformer that galvanically separates the primary side of the converter from its secondary side. At least one transistor switch is arranged between the input and primary side of the two converters for pulse width-modulation of the input voltage. The primary side of the second converter is connected in parallel with the primary side of the first converter, the secondary side of the second converter is connected in series with the secondary side of the first converter, the secondary sides of the two converters are each bridged in this series connection by at least one diode, so that an output voltage can be provided at the output of the supply circuit even given a failure of one of the two converters.

Supply circuit for a corona ignition device

The invention describes a heating apparatus comprising at least one heater () in which one or more electric heating elements () are arranged, and at least one heat transmitter (), which is connected with the at least one heater (), comprises heat transmitter surfaces and is formed from an extruded profile () in which the at least one heater () is fitted, in which at least part of the walls () of the extruded profile (), which are not in contact with a heating element (), is provided with openings through which a gaseous or liquid medium can flow through the extruded profile () in transverse direction to the direction of extrusion ().

Electric heating apparatus, especially for motor vehicles

The invention relates to a heating device comprising at least one tube housing in which at least one PTC heating element is arranged, and heat exchangers which are secured on the tube housing. According to the invention, it is provided that the heat exchangers are secured on the tube housing by stamping.

Electric heating device

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Bruchsal, Germany

Hans-Peter Etzkorn