Abstract: For the regeneration of an NOx storage catalyst by means of hydrogen in a secondary hydrogen process, the hydrogen required for the regeneration is taken from a primary hydrogen process.

Abstract: A method of obtaining a desired tooth flank backlash for a transmission having at least two interlocking toothed gears, comprises applying a removable coating on at least one of the toothed gears for purposes of setting the backlash, the coating comprising a mixture containing a bonding agent and a filling material; adjusting the least two interlocking toothed gears with the coating relatively to each another essentially play-free or with only small play; and removing the coating.

Abstract: A device for measuring the filling level of a fuel tank, in particular for motor vehicles, having two openings for installation of a filling connection and a pump unit, and a film sensor provided with an electric connecting cable which can be connected to a display device through the pump unit. The film sensor is embedded in a protective tube which is provided with inlet openings for the fuel. The protective tube is mounted on the filling connection at the side and can be inserted jointly with it into the respective opening in the fuel tank.

Abstract: Swivel actuator device for lift control of a gas exchange valve in a cylinder head of an internal combustion engine comprising a swivel motor having a shaft on which is provided a first operating element having a control path for opening the gas exchange valve, whereby a second operating element having a second control path provided on the first operating element. Due to the arrangement of the swivel actuator device, less electric power is needed at low rotational speeds and processing of the fuel mixture is improved.

Abstract: A method is provided for operating a bivalent internal combustion engine, which may run lean with using a fuel with wide inflammability limits, such as hydrogen, whereby a first lean region close to the stoichiometric air ratio and a second lean region, adjacent to the first in the direction of greater ? valve are defined. The operation in the first lean region is skipped such that operation occurs either in the second lean region or at an approximately stoichiometric air ratio.

Abstract: A cylinder block and crankcase for a liquid-cooled internal-combustion engine is to be constructed by composite casting, a magnesium case being cast around an aluminum power unit block. The cylinder block and crankcase is conceived such that the aluminum power unit block is significantly used for the distribution of force between the cylinder head and the crankshaft bearing caps as well as for the guiding of the cooling water, in which case, the magnesium case is free of a cooling water guidance and predominantly used for the guiding of lubricating oil and, in addition, is correspondingly designed for the proportional stiffening against bending and torsion loads.

Abstract: A cylinder head of an internal combustion engine is provided with a cylinder head housing and with a divided camshaft bearing rail having a lower part, which comprises lower bearing blocks, and having an upper part, which comprises upper bearing covers. In addition, the cylinder head has a cylinder head cover. The upper part of the camshaft bearing rail is designed so that it is closed like a hood, in particular, in the area between the bearing covers.

Abstract: A telematic service procedure includes first establishing a connection with a voice call a service center, and then determining whether a digital or analog network status is to be used during the establishment of a connection.

Abstract: A sidewall module of a motor vehicle in which a mounting beam which can be attached to the vehicle is preassembled with a self-supporting sidewall, and additional components may be installed in the sidewall module prior to assembly of the module on the vehicle. This approach to vehicle assembly creates a sidewall module that makes it possible to effectively utilize the construction space between the sidewall and the wheel house. Preferably, the mounting beam and the side wall are made of plastics, and the sidewall module is mounted on vehicle support structure arranged to permit the sidewall module to absorb energy in a collision with a pedestrian.

Abstract: A device for measuring the height of lift of poppet valves, in particular for poppet valves installed in internal combustion engines, with the help of inductive pickups, including a coil in a stationary mount and a metal sleeve which is in flush alignment in the valve shaft and is axially movable in the coil, and the sleeve is secured with axial play within the groove.

Abstract: A valve gear mechanism for an internal combustion engine includes a camshaft in a separate cylinder head for controlling the stroke of a gas shuttle valve by means of an interposed rocker arm, which is mounted in the cylinder head of a piston that performs a lifting motion of a hydraulic valve-play compensation element. The aim of the invention is to achieve a play-free surface liaison of mechanical origin between the actuating elements of the gas shuttle valve. To achieve this, the piston of the hydraulic compensation element has a device that acts on an instrument for mechanically actuating a lifting stroke in order to achieve a play-free surface liaison of the contract surfaces of the rocker arm and an additional valve gear element, while the valve-play compensation element is maintained hydraulically without pressure.

Abstract: A thermodynamic engine converts the superheated steam of at least one working medium into kinetic energy using a decompression device. Said engine includes a low-temperature circuit, in which a first working medium is transported through a first heat exchanger and subsequently through the decompression device and a high-temperature circuit, in which a second working medium is transported through a second heat exchanger and subsequently through the decompression device. The first heat exchanger and the second heat exchanger are located in the exhaust system of an internal combustion engine, and the internal combustion engine a coolant circuit can be used to heat the working mediums in separate collection containers.

Abstract: A cup-holder, preferably for integration into the center console of a motor vehicle, comprising a housing and a tray held therein which can slide in and out of the housing for accommodating at least one container, such as a cup or a bottle. The housing and tray are arranged so that the tray can be swiveled from an extended, horizontal in-use position to an approximately vertical non-use position by overcoming a resistance.

Abstract: A method for regulating and/or controlling an engine-transmission unit in a motor vehicle includes prioritizing torque demands to obtain an only torque value, storing the only torque value as a current successful situation and retaining the torque value for the previous successful situation, and processing the torque value of the current successful situation as well as the torque value of the previous successful situation to comparable torque values in each case required for the implementation of the demands.

Abstract: A rotary actuator device is used to control the stroke of at least two gas exchange valves in a cylinder head of an internal combustion engine. The device includes first and second actuating mechanisms, first and second rocker motors, and a force transfer element. Each actuating mechanism is provided for at least one of the gas exchange valves of the engine. The first rocker motor has a first shaft on which the first actuating mechanism is disposed, and the second rocker motor has a second shaft on which the second actuating mechanism is disposed. The first and the second rocker motors are arranged in a point-mirrored relationship. The force transfer element is disposed between each actuating mechanism and the at least one gas exchange valve.

Abstract: A belt drive for a secondary unit of an internal combustion engine includes a friction wheel drive having a friction wheel, a cam device for adjusting the engagement of the friction wheel to the drive wheel of the secondary unit, the cam device having a cam, a swivel arm by which the friction wheel is connected to the cam which is rotationally mounted on a side of the engine, and a spring biasing the swivel arm in a tension direction. The friction wheel is in permanent position of frictional engagement with a drive wheel of the secondary unit to drive the secondary unit and with an outside of a belt on a drive wheel of the internal combustion engine or of another secondary unit.

Abstract: A fuel cell including a carrier substrate for an electrode layer of a cathode-electrolyte-anode unit is provided. The substrate is made of a corrosion-resistant material, is permeable to a combustible gas or oxygen, and is integrally joined to a metallic frame or plate. An electrically conductive material is supplied on the carrier substrate to provide maximum conductivity across the substrate. Preferably, the corrosion-resistant material is a chromium steel with an aluminum oxide or silicon oxide layer, while the electrically conductive material may be Ni, Cu, or Co. Wires, wire pieces, or chips made of the electrically conductive material can be integrated into the permeable structure. Alternatively, the electrically conductive material may be particles impregnated in the carrier substrate as a powder, slurry, or suspension. The electrically conductive material may also be applied in the form of a dissolved salt which is converted at start-up if the fuel cell.

Abstract: A holographic display system for a vehicle includes a projection unit (2), a holographic beam combiner (3), and a viewing mirror (4, 4?). The projection unit includes a light source for the emission of a luminous signal and a controllable imaging unit illuminated by the light source, with which image information can be modulated on the luminous signal. The modulated luminous signal can be directed against the holographic beam combiner. The viewing mirror (4, 4?) is provided in or on the vehicle, by which mirror light radiated from the holographic beam combiner (3, 3?) can be directed into the optical perception range of a user.

Abstract: A cutting tool, particularly for steel sheet billets, having a cutting blade fastened to a blade holder and a pressure cushion which is arranged on sides of the blade holder and, when the cutting blade penetrates into the material to be punched, is pressed onto the latter in the area of the useful punched part. During the passage of the cutting blade, a high-quality edge of the useful punched part is largely kept free of an interfering burr and elevation formation by the pressure cushion material being displaced radially outward during the punching stroke, such that the cutting blade is acted upon by pressure in the lateral direction under an increasing elastic deflection of the cutting blade edge.

Abstract: A sealing structure in a fuel cell and/or an electrolyzer (particularly a solid-oxide fuel cell and/or a solid-oxide electrolyzer) is arranged between neighboring separator plates of a cell stack. The sealing structure is constructed in at least two layers, including at least one insulating layer and at least one sealing layer.