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Beru Ag

Borgwarner Beru Systems Gmbh

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Rolf Merte

Peter Riegler

Dieter Keese

Michael Edgar Luppold

Karl-Heinz Rackebrandt

Frank Buhl

Jörg Herwig

Andreas Thöne

Harry Plotzki

Peter Krippner

Alexander Dauth

Armin Gasch

Raiko Milanovic

Albrecht Vogel

Andreas Stelter

Wolfgang Scholz

Sönke Kock

Thomas Karte

Wilhelm Daake

Andrea Moroni

Manfred Wetzko

Frank Bartmann

Klaus Lehmann

Fabrizio Lorito

Thomas Bauer

Hans-Peter Etzkorn

Norbert Ernst

Christian Schmidt

Björn Matthias

Wolfgang Lasarzik

Emrullah Altiok

Jürgen Paul

Antonio Ruzzu

Franco Vecchiato

Corrado Bianchi

Jürgen Biskup

Eugenio Volonterio

Christian Dörrie

Juergen Paul

Hans Peter Etzkorn

Andreas Mulczet

Jürgen Brust

Jürgen Kochems

Stefan Brosig

Stephan Dick

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

An electric heating system, in particular an auxiliary heating system in automobiles, in which the heating system has several heating rods (), arranged side-by-side; the heating rods () are connected to each other by means of alike metal plates () that are slid onto the heating rods (); the heating rods () have for this purpose a series of slotted holes () that extend in the longitudinal direction () of the metal plates (); the slotted holes () have longitudinal edges, facing each other, that clamp the heating rods () between them; and at least one part of the slotted holes () in each metal plate () is longer by more than the manufacturing tolerance, than the width of the heating rods () measured in the longitudinal direction () of the metal plates ().

Electric heating system, in particular for use as an auxiliary heating system for automobiles

The invention relates to a method for operating an electric add-heater in a motor vehicle having at least one rechargeable electrochemical cell as a power source and an electric generator which is connected with the cell and is driven by a drive engine of the motor vehicle and by which an electric add-heater can be supplied with current when the drive engine is running. It is provided according to the invention that in case of need the add-heater can be supplied with current even when no current is supplied by the generator, by switching over the add-heater to at least one electrochemical cell as a power source, monitoring the charging condition of at least one electrochemical cell, and interrupting the power supply of the electric add-heater realized by the at least one monitored electrochemical cell again when the charging condition of the at least one monitored electrochemical cell has dropped below a lower limit value.

Method for operating an electrical auxiliary heater in a motor vehicle

The invention relates to a process control system having measuring devices and actuators. All of the measuring devices and actuators process information and exchange data amongst themselves. All measuring devices and actuators are interconnected to enable a bi-directional data exchange. Several, or all of the measuring devices and actuators can exchange data with a service unit that can be connected to the devices and actuators. The invention also relates to a method for operating a process control system of this type.

Process control system and method for operating a system of this type

A electric circuit includes a connection to a current source, an electric load, and a thermal-mechanical fuse which, in the case of failure at an excessive heat emission, interrupts the current supply to the load, which is effectuated by a feeder in which is arranged a spring having two ends, at least one end is soldered to a solder point provided in the feed line. The one solder point is under a mechanical pretension caused by the restoring force of a spring, that separates the solder joint between the spring and the solder point in the feed line, when the solder melts at the solder point.

Electric circuit with thermal-mechanical fuse

Disclosed is a method for diagnosing technical devices, especially pumps and valves, which are arranged within an installation used in the processing industry. According to said method, disturbance variables that affect the devices and influence the service life thereof are detected by means of sensory technology while the data of said disturbance variables is processed in a simulative manner in order to determine the expected service life of each device. Various maintenance instructions which are output along with the expected remaining trouble-free operating time of the industrial installation when a lower service life threshold value of one or several devices has been reached are stored in an expert unit.

Method and device for the diagnosis of technical devices disposed within an industrial installation

An apparatus and method is disclosed for protection of a machine-controlled handling appliance having moving parts, having a safety sensor system for detection of objects in the working area of the handling appliance, having a safety controller which interacts with the handling appliance controller and in the process controls safety-relevant handling appliance functions as a function of signals from the safety sensor system. The safety sensor system has non-contacting proximity sensors so that a safety-relevant part of the working area of the handling appliance is covered by the detection areas of the proximity sensors.

Device and method for safeguarding a machine-controlled handling device

The invention relates to a method for operating a measuring device, especially a flowmeter. The aim of the invention is to simplify inspection if the sensors have been correctly installed. For this purpose, the installation state is detected by the sensors themselves, i.e. by sensing a corresponding sensor value and comparing it with characteristic data. The result of comparison is electronically evaluated and automatically estimated whether the characteristic data obtained match the comparative data within at least a defined tolerance.

Method of testing the installation of a measuring device

A method for operating a device in which typically a very high current is generated when the device is turned on compared to the rated current, e.g. an analogue operated PTC heating device for a mobile device, such as a vehicle, is disclosed. In this method, the power on the device is increased in a defined limited manner or in a ramp-like manner in the connection phase to avoid a high current when the device is switched on.

Method for operating an electrical device

A vortex flowmeter is disclosed, which includes, among other features, a closed measuring tube, through which a flowable medium that is to be quantitatively measured flows, the medium flowing against a disturbing element that is arranged in the measuring tube. A vibration sensor is arranged downstream in the direction of flow detecting the vortex frequency generated by the disturbing element. An electronic evaluation unit is disposed downstream of the vibration sensor converting it into an electric signal corresponding to the quantitative flow rate or volumetric flow rate. The relative position can be changed between the measuring tube and the disturbing element and/or the measuring tube and the vibration sensor in a signal-optimizing manner.

Vortex flowmeter

The invention relates to a device and a method for the status monitoring of a pressure measuring unit in an absolute or differential or relative pressure transducer, a pressure-sensitive element installed in the pressure measuring unit being impinged with at least one pressure generated by at least one membrane. During a defined diagnosis time interval, a testing element integrated in the pressure measuring unit is induced to undergo a change in volume, preferably by electrical activation. The pressure difference caused as a result in the pressure measuring unit is registered by a pressure-sensitive element. The curve registered during a diagnosis time interval is compared with a reference curve recorded with the pressure measuring unit intact. A fault indication is given if the deviations between the registered curve and the reference curve exceed predetermined tolerance values.

Device and method for the status monitoring of a pressure measuring unit

A device for suspension of a sample body which rotates in space about a rotation axis which is in a fixed position or is related to a fixed position, as a function of the intensity of a measurement effect. In order to ensure that a sample mass is mounted in the device securely and such that it can rotate very largely without any lateral movement, the suspension, which has at least two springs, for the sample body is designed to be planar in a rest position.

Device for suspension of a sample body

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Heidelberg, Germany

Rolf Merte