Abstract: A multiple-pump device for a vehicle may include a housing. The housing may include at least a first drive device for driving a first drive shaft with a first impeller, and a second drive device for driving a second drive shaft with a second impeller. The multiple-pump device may include a bearing shield penetrated by the first drive shaft and the second drive shaft. The beating shield may separate a wet region with the first impeller and the second impeller from a dry region with the first drive device and the second drive device. The multiple-pump device may include power electronics arranged in the dry region and connected with the bearing shield to transfer heat.

Abstract: An electrolytic device and to a method for operating an electrolysis of water with at least one electrolysis cell, the electrolysis cell having an anode compartment having an anode and a cathode compartment having a cathode. The anode compartment is separated from the cathode compartment by a proton exchange membrane. The anode compartment is suitable for holding water and oxidising the water on the anode to form a first product including oxygen and the cathode compartment is suitable for holding water and reducing the water on the cathode to a second product including hydrogen. Furthermore, the electrolysis device includes a first gas precipitation device for precipitation of oxygen, the first gas precipitation device for carrying out a natural water circulation being arranged above the electrolysis cell.

Abstract: An anchoring unit for a system, the anchoring unit having at least one first insulation layer and at least one second insulation layer. The anchoring unit furthermore includes a support layer for mechanically stabilising the insulation layers, the support layer being arranged between the first insulation layer and second insulation layer. The anchoring unit furthermore includes at least two screws, the screws being oriented in opposition to one another, a first screw being suitable for anchoring to the system and a second screw being suitable for anchoring to an anchor object. A first screw head of the first screw is in direct contact with the support layer. A screw shank of the first screw is arranged at least partially in the first insulation layer. A method includes fastening a system to the anchoring unit.

Abstract: An electrolysis cell with a cell frame and to a method for producing an electrolysis cell, wherein the cell frame has a stepped inner profile. The inner profile has at least one support surface for receiving a planar component in the cell frame, and the support surface has a recess for a seal. A seal is first placed in the recess, and a membrane-electrode unit, a first gas diffusion layer, and an electrically conductive top layer are then introduced into the cell frame. The cell frame is then rotated, and a second gas diffusion layer is applied. The electrolysis cell produced in this manner includes the cell frame with the seal and the different layers.

Abstract: An electrolytic device and to a method for operating an electrolysis of water with at least one electrolysis cell, the electrolysis cell having an anode compartment having an anode and a cathode compartment having a cathode. The anode compartment is separated from the cathode compartment by a proton exchange membrane. The anode compartment is suitable for holding water and oxidising the water on the anode to form a first product including oxygen and the cathode compartment is suitable for holding water and reducing the water on the cathode to a second product including hydrogen. Furthermore, the electrolysis device includes a first gas precipitation device for precipitation of oxygen, the first gas precipitation device for carrying out a natural water circulation being arranged above the electrolysis cell.

Abstract: A gas diffusion layer is arranged between a bipolar plate and an electrode of an electrochemical cell and includes at least two layers which are layered one on top of the other layer. At least one of the two layers is designed as a spring component having a progressive spring characteristic curve.

Abstract: A bipolar plate for an electrolyzer, particularly a PEM electrolyzer, is formed with a central region and a peripheral region surrounding the central region. With a view to cost-effective production of the bipolar plate, the central region is made of metal sheet and the peripheral region is formed from a plastic frame. The plastic frame is made of at least one thermoplastic, particularly at least one high-temperature thermoplastic, and is injection-molded around the sheet metal.

Abstract: A gas diffusion layer is arranged between a bipolar plate and an electrode of an electrochemical cell and includes at least two layers which are layered one on top of the other layer. At least one of the two layers is designed as a spring component having a progressive spring characteristic curve.

Abstract: A circuit breaker includes a sliding contact, in which a movable contact that is mounted on a spring is located, the contact lying opposite a fixed contact. In an embodiment, the fixed contact has a horn-shaped contour that engages in mating contours of the switching chamber walls of the circuit breaker.

Abstract: A contact slider unit is disclosed for a switching unit, in particular for a circuit breaker, having a contact slider and a contact piece. In an embodiment, the contact piece has a passage through which a tappet is guided.

Abstract: A contact slider unit is disclosed for a switching unit, in particular for a circuit breaker, having a contact slider and a contact piece. In an embodiment, the stabilising element preventing bridge rotation is arranged on the contact piece.

Abstract: A circuit breaker includes a housing equipped with a first switchgear region, in which a quenching chamber device and a sliding contact device having movable contacts are located, the contacts lying opposite fixed contacts, and equipped with a second switchgear region, in which a current release assembly consisting of a short-circuit release and an overload release are located. In an embodiment, a continuous ventilation channel is formed within opposing housing walls along the fixed contacts, the channel acting as a first convective air-flow through the circuit breaker in order to dissipate the heat.

Abstract: A bipolar plate for an electrolyzer, particularly a PEM electrolyzer, is formed with a central region and a peripheral region surrounding the central region. With a view to cost-effective production of the bipolar plate, the central region is made of metal sheet and the peripheral region is formed from a plastic frame. The plastic frame is made of at least one thermoplastic, particularly at least one high-temperature thermoplastic, and is injection-molded around the sheet metal.

Abstract: A contact slide unit is disclosed for a switching unit, in particular for a circuit breaker, having a contact slide, in which a switching piece can be guided, and a contact slide guide apparatus, in which the contact slide is guided. In at least one embodiment, a linear contact is provided between the contact slide and the contact slide guide apparatus.

Abstract: A circuit breaker includes a sliding contact, in which a movable contact that is mounted on a spring is located, the contact lying opposite a fixed contact. In an embodiment, the fixed contact has a horn-shaped contour that engages in mating contours of the switching chamber walls of the circuit breaker.

Abstract: A circuit breaker includes a housing equipped with a first switchgear region, in which a quenching chamber device and a sliding contact device having movable contacts are located, the contacts lying opposite fixed contacts, and equipped with a second switchgear region, in which a current release assembly consisting of a short-circuit release and an overload release are located. In an embodiment, a continuous ventilation channel is formed within opposing housing walls along the fixed contacts, the channel acting as a first convective air-flow through the circuit breaker in order to dissipate the heat.

Abstract: A contact slider unit is disclosed for a switching unit, in particular for a circuit breaker, having a contact slider and a contact piece. In an embodiment, the contact piece has a passage through which a tappet is guided.

Abstract: A contact slider unit is disclosed for a switching unit, in particular for a circuit breaker, having a contact slider and a contact piece. In an embodiment, the stabilising element preventing bridge rotation is arranged on the contact piece.

Abstract: A contact slide unit is disclosed for a switching unit, in particular for a circuit breaker, having a contact slide, in which a switching piece can be guided, and a contact slide guide apparatus, in which the contact slide is guided. In at least one embodiment, a linear contact is provided between the contact slide and the contact slide guide apparatus.