Abstract: The present invention relates to a work machine, in particular to a construction machine and/or mining machine such as a crawler-type vehicle, a dump truck, mining device or the like, having an electric drive which comprises power electronics which have at least one transformer which has power connections covered by a cover for connecting power cables, wherein a manually actuable grounding device is provided for the all-pole grounding of the transformer and/or for short-circuiting an intermediate circuit connected thereto. The invention in this respect in particular also relates to such a transformer. In accordance with the invention, the manually actuable grounding device is coupled to a cover latch of the cover such that the cover can be unlatched by actuating the named grounding device.

Abstract: Methods and systems are provided related to a self-propelling work machine in the form of a tracked vehicle having an electric drive, with a generator drivable by an internal combustion engine, an auxiliary unit connected to the engine, and a braking apparatus for braking the work machine. The braking apparatus provides regenerative braking by the electric drive and comprises a feedback apparatus for feeding back electrical motor braking power of the electric motor to the generator to apply the motor braking power on the engine and on the auxiliary unit. A controller automatically increases or decreases the electrical load of the auxiliary unit based on the electrical motor braking power fed back to the engine and/or based on an engine speed.

Abstract: The present disclosure relates to a work machine, in particular in the form of a dump truck or of a truck, having a diesel electric traction drive, comprising at least one internal combustion engine, at least one alternator, at least one set of power electronics as well as at least one electric motor, wherein the power electronics are divided into two or more functional modules and at least one, each, functional module has an encapsulated housing.

Abstract: Methods and systems are provided related to a self-propelling work machine in the form of a tracked vehicle having an electric drive, with a generator drivable by an internal combustion engine, an auxiliary unit connected to the engine, and a braking apparatus for braking the work machine. The braking apparatus provides regenerative braking by the electric drive and comprises a feedback apparatus for feeding back electrical motor braking power of the electric motor to the generator to apply the motor braking power on the engine and on the auxiliary unit. A controller automatically increases or decreases the electrical load of the auxiliary unit based on the electrical motor braking power fed back to the engine and/or based on an engine speed.

Abstract: The invention relates to a work machine, in particular in the form of a dump truck or truck, having a diesel electric traction drive, wherein at least one alternator is or can be driven by at least one internal combustion engine of the work machine. In accordance with the invention, the current generation can also be reliably interruptible with a running internal combustion engine by interruption of the excitation circuit by means of a breaker switch.

Abstract: The application describes a self-propelling work machine, in the form of a truck, having an electric drive comprising at least one electric motor, a generator drivable by an internal combustion engine for the power supply of the electric drive, and a braking apparatus for braking the work machine, wherein the braking apparatus provides a regenerative braking by the electric drive and a feedback apparatus for feeding back electrical motor braking power of the electric motor to the generator to apply the motor braking power on the internal combustion engine. The application further describes a method for braking the work machine. A braking control apparatus is provided for an automatic connection of a mechanical brake in dependence on the motor braking power fed back to the internal combustion engine and/or in dependence on the operating state of the internal combustion engine acted on by the fed back motor braking power.

Abstract: The invention relates to a self-propelling work machine in the form of a tracked vehicle having an electric drive, with a generator drivable by an internal combustion engine, an auxiliary unit connected to the engine, and a braking apparatus for braking the work machine. The braking apparatus provides regenerative braking by the electric drive and comprises a feedback apparatus for feeding back electrical motor braking power of the electric motor to the generator to apply the motor braking power on the engine and on the auxiliary unit. The invention further relates to a method for braking the work machine. In accordance with the invention, a control apparatus is provided for the automatic increase and/or decrease of the power pick-up of the auxiliary unit in dependence on the electrical motor braking power fed back to the engine and/or on the operating state of the engine acted on by motor braking power.

Abstract: The present invention relates to a work machine, in particular to a construction machine and/or mining machine such as a crawler-type vehicle, a dump truck, mining device or the like, having an electric drive which comprises power electronics which have at least one transformer which has power connections covered by a cover for connecting power cables, wherein a manually actuable grounding device is provided for the all-pole grounding of the transformer and/or for short-circuiting an intermediate circuit connected thereto. The invention in this respect in particular also relates to such a transformer. In accordance with the invention, the manually actuable grounding device is coupled to a cover latch of the cover such that the cover can be unlatched by actuating the named grounding device.

Abstract: The present invention describes a self-propelling work machine in the form of a truck, having an electric drive comprising at least one electric motor, a generator drivable by an internal combustion engine for the power supply of the electric drive, and a braking apparatus for braking the work machine, wherein the braking apparatus provides a regenerative braking by the electric drive and a feedback apparatus for feeding back electrical motor braking power of the electric motor to the generator to apply the motor braking power on the internal combustion engine. The invention further describes a method for braking the work machine. A braking control apparatus is provided for an automatic connection of a mechanical brake in dependence on the motor braking power fed back to the internal combustion engine and/or in dependence on the operating state of the internal combustion engine acted on by the fed back motor braking power.

Abstract: The invention relates to process for operating a clean room and to a control device for a clean room, the clean room (10) comprising a work room (12, 13, 14), a room ventilation system (15) and a control device (16), the room ventilation system being controlled and/or regulated by means of the control device, an air exchange rate in the work room and a pressure difference between the work room and an environment (25) being generated by means of the room ventilation system, the control device comprising at least one sensor device (19) for registering an actual value representing an operating parameter, wherein the air exchange rate is adjusted by means of the control device in such a manner that the actual value is in the range of a target value.

Abstract: The invention relates to a work machine, in particular in the form of a dump truck or truck, having a diesel electric traction drive, wherein at least one alternator is or can be driven by at least one internal combustion engine of the work machine. In accordance with the invention, the current generation can also be reliably interruptible with a running internal combustion engine by interruption of the excitation circuit by means of a breaker switch.

Abstract: An armrest unit for a passenger seat includes an armrest base body forming an armrest surface, and a suspension unit which is disposed underneath the armrest surface and which has at least one spacing means.

Abstract: The present disclosure relates to a work machine, in particular in the form of a dump truk or of a truck, having a diesel electric traction drive, comprising at least one internal combustion engine, at least one alternator, at least one set of power electronics as well as at least one electric motor, wherein the power electronics are divided into two or more functional modules and at least one, each, functional module has an encapsulated housing.

Abstract: An armrest unit for a passenger seat includes an armrest base body forming an armrest surface, and a suspension unit which is disposed underneath the armrest surface and which has at least one spacing means.

Abstract: Animal model involving transgenic manipulation of amyloid precursor protein, useful for testing potential therapeutic agents for the treatment of neurodegenerative disorders, in particular Alzheimer's disease.

Abstract: A method for producing a cylinder crankcase is provided, in which a hypereutiectic aluminum-silicon alloy is cast in a rheocasting or thixocasting process and is cast at a temperature ranging from 520° C. to 580° C.

Abstract: This invention relates to gene polypeptides and polynucleotides that encode proteins of the Nogo-66 receptor (NgR) family and are therefore called NgR homologue 1 (NgRH1). The invention further relates to their use in identifying compounds that may be agonists or antagonists that are potentially useful in regeneration and protection of the nervous system, and to production of NgRH1 polypeptides, derivatives, and antibodies.

Abstract: Animal model involving transgenic manipulation of amyloid precursor protein, useful for testing potential therapeutic agents for the treatment of neurodegenerative disorders, in particular Alzheimer's disease.

Abstract: A method and a system for monitoring telephone calls are described. A useful signal (which represents the call information of a telephone call) and a data set (which contains at least one digital subscriber tag) are supplied to a recording center (20). The data set is supplied to a relaying device (28), in which it is compared with stored comparison data sets. If the subscriber tag matches a corresponding comparison tag of a selected comparison data set, a communications link is produced to a monitoring device (36).

Abstract: The ball attach step of grid array (BGA) devices requires precise control of the ball shape and height. All balls must have identical height within tight tolerances, to assure proper soldering to the PC board.