Abstract: An electrically driven motor vehicle has current collectors for pickup from a dual-pole power transmission line device. A device determines the voltages between a vehicle chassis and the current collectors. The device is a bridge circuit with two equal voltage divider resistors connected in series between the two current collectors and a bridge shunt resistor electrically connected to a center tap between the voltage divider resistors and to the vehicle chassis, or the device has two voltage measurement devices for determining a voltage between the first current collector and the vehicle chassis and a voltage between the second current collector and the vehicle chassis. There is also described a method for operating the motor vehicle and a system with the motor vehicle and a dual-pole power transmission line device.

Abstract: A method for marking a workpiece (6) uses a device, wherein the workpiece (6) is formed at least partially in a thermal master or forming process, comprises a surface (10) directed towards the workpiece (6), wherein a number of individually controllable heating elements (2) is distributed behind the surface (10) for a local heating of a workpiece surface portion. Each of the heating elements (2) comprises a solid material (11) having a surface structure and a heating structure (3), wherein the surface (10) directed towards the workpiece (6) encompassing the surface structures (40) has a uniform smooth surface allowing to dark, burn or foam the surface (7) of the workpiece (6) through heat introduction.

Abstract: A method for marking a workpiece (6) uses a device, wherein the workpiece (6) is formed at least partially in a thermal master or forming process, comprises a surface (10) directed towards the workpiece (6), wherein a number of individually controllable heating elements (2) is distributed behind the surface (10) for a local heating of a workpiece surface portion. Each of the heating elements (2) comprises a solid material (11) having a surface structure and a heating structure (3), wherein the surface (10) directed towards the workpiece (6) encompassing the surface structures (40) has a uniform smooth surface allowing to dark, burn or foam the surface (7) of the workpiece (6) through heat introduction.

Abstract: A device for marking a work piece that is at least partially formed or reshaped through a thermal process is provided. The device includes a plurality of heating elements distributed laterally on a surface that is placed against the work piece and can be individually controlled for local heating of a work piece surface. Each of the heating elements includes a solid material with a surface structure and a heating structure. The surface structure includes at least one of a specifically or randomly varied topography. The surface structure can be at least partially heated through the heating structure.

Abstract: A device for marking a work piece that is at least partially formed or reshaped through a thermal process is provided. The device includes a plurality of heating elements distributed laterally on a surface that is placed against the work piece and can be individually controlled for local heating of a work piece surface. Each of the heating elements includes a solid material with a surface structure and a heating structure. The surface structure includes at least one of a specifically or randomly varied topography. The surface structure can be at least partially heated through the heating structure.

Abstract: Medical fluid-flow regulating devices are provided. Such medical fluid-flow regulating devices typically include a rotor and a flow-regulator element engaged or engageable with each other via a coupling that below a torque and/or fluidic-pressure threshold value allows the flow-regulator element to move upon rotation of the rotor and thereby regulate fluid flow. The medical fluid-flow regulating devices also include a blocking unit that above the torque and/or fluidic-pressure threshold value irreversibly blocks the rotor or the flow-regulator element or the coupling between the rotor and the flow-regulator element resulting in irreversible inactivation of the medical fluid-flow regulating device. Systems incorporating such medical fluid-flow regulating devices are also provided. Methods for detecting inactivation of such devices are also provided.

Abstract: A pantograph configuration for a vehicle has at least one pantograph embodied for at least temporary contact with an electrical network located externally outside the vehicle. The pantograph is movable from a contact position into a rest position. A first electrical network is located internally within the vehicle, which in the contact position is connected to the pantograph. A second electrical network located internally within the vehicle is connected to a ground or mass potential of the vehicle and in the rest position to the pantograph. In order to ensure that the pantograph is voltage-free in the rest position, the pantograph is connected to the first electrical network and the second electrical network in the rest position.

Abstract: A vehicle has an electric or hybrid-electric traction drive supported by an ungrounded vehicle frame. The vehicle also has a current collector, which can be electrically connected to the traction drive and which can be brought in galvanic contact with a contact line of a grounded contact-line system to supply traction energy. The vehicle contains an electrical protection system for avoiding dangerous contact voltages on the vehicle frame or on a vehicle part connected to the vehicle frame in a conductive manner. The protection system has a first protection stage, a second protection stage, and a switching element, by which the protection system can be switched between the first and the second protection stages. The first protection stage provides greater safety from dangerous contact voltages than the second protection stage. Thus, a protection system can be provided which provides sufficient safety in all operating states of the vehicle.

Abstract: Medical fluid-flow regulating devices are provided. Such medical fluid-flow regulating devices typically include a rotor and a flow-regulator element engaged or engageable with each other via a coupling that below a torque and/or fluidic-pressure threshold value allows the flow-regulator element to move upon rotation of the rotor and thereby regulate fluid flow. The medical fluid-flow regulating devices also include a blocking unit that above the torque and/or fluidic-pressure threshold value irreversibly blocks the rotor or the flow-regulator element or the coupling between the rotor and the flow-regulator element resulting in irreversible inactivation of the medical fluid-flow regulating device. Systems incorporating such medical fluid-flow regulating devices are also provided. Methods for detecting inactivation of such devices are also provided.

Abstract: A vehicle has an electric or hybrid-electric traction drive supported by an ungrounded vehicle frame. The vehicle also has a current collector, which can be electrically connected to the traction drive and which can be brought in galvanic contact with a contact line of a grounded contact-line system to supply traction energy. The vehicle contains an electrical protection system for avoiding dangerous contact voltages on the vehicle frame or on a vehicle part connected to the vehicle frame in a conductive manner. The protection system has a first protection stage, a second protection stage, and a switching element, by which the protection system can be switched between the first and the second protection stages. The first protection stage provides greater safety from dangerous contact voltages than the second protection stage. Thus, a protection system can be provided which provides sufficient safety in all operating states of the vehicle.

Abstract: A pantograph configuration for a vehicle has at least one pantograph embodied for at least temporary contact with an electrical network located externally outside the vehicle. The pantograph is movable from a contact position into a rest position. A first electrical network is located internally within the vehicle, which in the contact position is connected to the pantograph. A second electrical network located internally within the vehicle is connected to a ground or mass potential of the vehicle and in the rest position to the pantograph. In order to ensure that the pantograph is voltage-free in the rest position, the pantograph is connected to the first electrical network and the second electrical network in the rest position.

Abstract: A technique of operating a flow line is provided. The flow line includes two or more assembly stations for the assembly of a heavy machine. The technique involves installing a prepared assembly trailer in the flow line before or at a first assembly station. The prepared assembly trailer is connected to at least one flow line tow bar. If the prepared assembly trailer is installed before the first assembly station, then the assembly trailer is moved to the first assembly station. If not, all the flow line assembly trailers are moved to the next assembly station. The steps of moving the flow line assembly trailers are performed timewise stepwise.

Abstract: A technique of operating a flow line is provided. The flow line includes two or more assembly stations for the assembly of a heavy machine. The technique involves installing a prepared assembly trailer in the flow line before or at a first assembly station. The prepared assembly trailer is connected to at least one flow line tow bar. If the prepared assembly trailer is installed before the first assembly station, then the assembly trailer is moved to the first assembly station. If not, all the flow line assembly trailers are moved to the next assembly station. The steps of moving the flow line assembly trailers are performed timewise stepwise.

Abstract: Method for producing a vacuum measuring cell having a pressure transducer diaphragm with housing plates sealed on opposite sides to form reference and measuring vacuum chambers. An opening in one plate communicates with the measuring vacuum chamber and has a sealed connection for joining to medium to be measured. The diaphragm and plates are aluminum oxide ceramic and at least one of the seals is aluminum with a thickness of 0.5 ?m to 30 ?m. The ceramic parts are pressed together at increased temperature of 600° C. to 680° C. in a process gas atmosphere including a reducing gas, during a time of 30 to 90 minutes, and subsequently a tempering step is carried out in a second process gas atmosphere including oxygen, tempering taking place at a temperature of 450° C. to 575° C. such that the metallic aluminum is oxidized into aluminum oxide.

Abstract: Method for producing a vacuum measuring cell having a pressure transducer diaphragm with housing plates sealed on opposite sides to form reference and measuring vacuum chambers. An opening in one plate communicates with the measuring vacuum chamber and has a sealed connection for joining to medium to be measured. The diaphragm and plates are aluminum oxide ceramic and at least one of the seals is aluminum with a thickness of 0.5 ?m to 30 ?m. The ceramic parts are pressed together at increased temperature of 600° C. to 680° C. in a process gas atmosphere including a reducing gas, during a time of 30 to 90 minutes, and subsequently a tempering step is carried out in a second process gas atmosphere including oxygen, tempering taking place at a temperature of 450° C. to 575° C. such that the metallic aluminum is oxidized into aluminum oxide.

Abstract: The invention relates to an actuator device comprising a headpiece (1) with an adjuster mechanism for an actuating arm mounted to pivot on the headpiece into the actuated and open position and a housing (7) supporting the headpiece (1) with an interior for housing a linearly adjustable control rod connected to the adjuster mechanism (3) and connected to the actuator arranged in the housing (7). According to the invention, the housing (7) is in the form of an extrusion moulded hollow profile (8), the interior of which has a constant inner cross-section over the entire length thereof.

Abstract: The invention relates to an electromotive device for operating gas exchange valves on internal combustion engines, comprising a rotary actuator exerting forces on one or more valve stem ends of one or more gas exchange valves by means of a lever arrangement. The rotary actuator is a reluctance motor with a cylindrical iron rotor with permanent magnet segments of alternating magnetisation arranged on the circumference thereof. The average angular separation of the poles of the stator of the reluctance motor are approximately equal to the average angular separation of the permanent magnet segments on the rotor. The valve shaft ends operated by the lever arrangement preferably belong to gas exchange valves of a cylinder of an internal combustion engine the opening times of which do not coincide or belong to gas exchange valves on different cylinders. The reluctance motor preferably has a single-phase design.

Abstract: A coupling element (3) and a waveguide structure (4) are deposited on a common substrate (2) of an optical component (1). The coupling element (3) serves for the optical coupling of the waveguide structures (4) to a further optical component. The coupling element (3) contains a reflecting, curved surface (31.1-31.8) for deflecting and for collimation of light which propagates between the waveguide structure 4 and the further optical component. The coupling element (3) creates a standard for interfaces between the optical component (1) and a further optical component. The manufacture of the coupling element (3) is simple and inexpensive, may be standardized and directed to large batch numbers.

Abstract: A structure, and a method for fabricating the structure, for the isolation of electronic devices is disclosed. The electronic devices are processed in substrates comprising a SiGe based layer underneath a strained Si layer. The isolation structure comprises a trench extending downward from the substrate top surface and penetrating into the SiGe based layer, forming a sidewall in the substrate. An epitaxial Si liner is selectively deposited onto the trench sidewall, and subsequently thermally oxidized. The trench is filled with a trench dielectric, which protrudes above the substrate top surface.

Abstract: A coupling element (3) and a waveguide structure (4) are deposited on a common substrate (2) of an optical component (1). The coupling element (3) serves for the optical coupling of the waveguide structures (4) to a further optical component. The coupling element (3) contains a reflecting, curved surface (31.1-31.8) for deflecting and for collimation of light which propagates between the waveguide structure 4 and the further optical component. The coupling element (3) creates a standard for interfaces between the optical component (1) and a further optical component. The manufacture of the coupling element (3) is simple and inexpensive, may be standardized and directed to large batch numbers.