Abstract: A device for manufacturing a cell stack having a plurality of cell assemblies. The device comprises several positioning units accommodating the plurality of cell assemblies. The positioning units each comprise a positioning jaw enclosing the plurality of cell assemblies disposed one above the other. The device further comprises a first moving unit moving the positioning unit. The first moving unit comprises a moving plate mounted in a movable manner and an actuator. The positioning units are disposed on the moving plate. The actuator moves the moving plate. The positioning units are arranged such that the individual cell assemblies are centered between the positioning jaws by the movement initiated by the first moving unit. Finally, the device comprises a support, which is decoupled from the movement of the first moving unit, wherein the plurality of cell assemblies and/or plies rest on the support.

Abstract: A device for manufacturing a cell stack having a plurality of cell assemblies. The device comprises several positioning units accommodating the plurality of cell assemblies. The positioning units each comprise a positioning jaw enclosing the plurality of cell assemblies disposed one above the other. The device further comprises a first moving unit moving the positioning unit. The first moving unit comprises a moving plate mounted in a movable manner and an actuator. The positioning units are disposed on the moving plate. The actuator moves the moving plate. The positioning units are arranged such that the individual cell assemblies are centered between the positioning jaws by the movement initiated by the first moving unit. Finally, the device comprises a support, which is decoupled from the movement of the first moving unit, wherein the plurality of cell assemblies and/or plies rest on the support.

Abstract: A sorption cooling device includes at least one evaporator, a condenser and a sorption chamber.

Abstract: The invention relates to a method for driving an electromagnetic actuator, which comprises a field winding for generating a magnetic field and a movable armature, wherein, in the method, in order to move the armature from a preset starting position into a preset end position, a magnetic flux is generated in the field winding and the magnetic flux through the field winding or a flux variable correlated with the magnetic flux through the field winding is measured so as to form an actual value. The invention provides that, in order to move the armature from the starting position into the end position, the magnetic flux through the field winding is regulated, namely in such a way that the characteristic of the actual value corresponds to a fixedly preset setpoint flux curve.

Abstract: A sorption cooling device includes at least one evaporator, a condenser and a sorption chamber.

Abstract: A metal component which has a face which during use is thermally or mechanically more highly loaded than the environment thereof and which is at least partially covered with a glaze or enamel layer and a method for the production thereof. The metal component requires no specific limitations during the thermal processing operation and nonetheless ensures optimum protection for the surfaces which are highly loaded during use. The glaze or enamel layer contains, with respect to the enamel frit used to produce the enamel coating, from 2 to 35% by weight of an admixture of particles which consist of at least one material from glass, organic plastics materials, and synthetic oxide mixtures or melts, which each have a thermal expansion coefficient of a maximum of 50×10?7 K?1 and a melting temperature of at least 500° C.

Abstract: A method is disclosed for operating an electric switch having at least one movable switch contact, movable by a movable armature of an electromagnetic actuator to switch the switch on and off, a spring device arranged between the movable switch contact and the armature and, in order to move the armature from a starting position to an armature end position, a magnetic flux being generated in an exciter winding of the actuator by an exciter current being fed into the exciter winding. According to an embodiment and taking into account a position data set which specifies the respective armature position as a function of magnetomotive values and flux values, an armature position—called the contact strike armature position below—is determined at which the switch contacts meet each other during the closing operation, before the armature reaches the armature end position.

Abstract: A method is disclosed for operating an electric switch having at least one movable switch contact, movable by a movable armature of an electromagnetic actuator to switch the switch on and off, a spring device arranged between the movable switch contact and the armature and, in order to move the armature from a starting position to an armature end position, a magnetic flux being generated in an exciter winding of the actuator by an exciter current being fed into the exciter winding. According to an embodiment and taking into account a position data set which specifies the respective armature position as a function of magnetomotive values and flux values, an armature position—called the contact strike armature position below—is determined at which the switch contacts meet each other during the closing operation, before the armature reaches the armature end position.

Abstract: The invention provides a cast part which is cast from a casting material and into which a channel is formed which gas flows through in operation, wherein the channel is at least in sections delimited by a separately prefabricated metal insert which is cast into the cast part. In order that such a cast part can withstand the highest thermal and mechanical stresses in the area of its gas-conveying channel, the invention proposes that the insert on its inner surface assigned to the gas and on its outer surface assigned to the casting material is in each case at least in sections coated in each case with a glaze or enamel coat.

Abstract: The invention relates to a method for producing a brake disc (1) for a vehicle, in which a protective layer is arranged on a base member (2) of the brake disc (1). The base member is formed of aluminum or of an aluminum alloy. It is proposed that the method comprise at least the steps: pre-machining at least the friction surfaces (7, 8) of the base member (2) in blank form; applying an enamel coating (10) as an anti-corrosion and/or anti-wear layer at least onto the friction surfaces (7, 8) of the brake disc (1), and post-treating the base member (2) coated at least in places, wherein the enamel coating (10) bonds metallurgically to the base material of the base member (2).

Abstract: The invention relates to a method for driving an electromagnetic actuator, which comprises a field winding for generating a magnetic field and a movable armature, wherein, in the method, in order to move the armature from a preset starting position into a preset end position, a magnetic flux is generated in the field winding and the magnetic flux through the field winding or a flux variable correlated with the magnetic flux through the field winding is measured so as to form an actual value. The invention provides that, in order to move the armature from the starting position into the end position, the magnetic flux through the field winding is regulated, namely in such a way that the characteristic of the actual value corresponds to a fixedly preset setpoint flux curve.