Abstract: A tightening device for a steering column of a motor vehicle comprises a tightening bolt, axially extended in the direction of a tightening axis, and a tightening lever which is connected in torsion-locked manner to the tightening bolt via a coupling element and a connecting element, wherein the coupling element exhibits an axially protruding first projection and an axially protruding second projection, radially opposing the first projection with respect to the tightening axis, and the connecting element exhibits a first aperture in which the first projection engages axially, and exhibits a second aperture in which the second projection engages axially and which has been designed to be open radially outward. In order to make possible a more compact structure and improved manufacture, the second projection may have a radial second-projection width that is larger than a radial first-aperture width of the first aperture, and that is larger than a radial second-aperture width of the second aperture.

Abstract: A bearing unit for fastening a rotor blade to a hub of a wind turbine comprises a first bearing ring for fastening to the hub, a second bearing ring for fastening to the rotor blade, at least one series of rolling elements, and a pitch drive for angularly adjusting the two bearing rings relative to one another, wherein the first bearing ring is formed in one piece with a rotor hub extension which extends on the hub side in an axial direction beyond the second bearing ring, wherein the pitch drive comprises at least one electric pitch motor and a shaft, driven by the pitch motor, with a drive pinion which meshes with a toothing formed on the inside of the first bearing ring, wherein the pitch motor is arranged on the blade side on a reinforcement plate mounted on the second bearing ring and the shaft extends through an eccentrically arranged cutout in the reinforcement plate.

Abstract: An apparatus for production of ammonium nitrate from nitric acid and ammonia comprises a recirculation circuit, wherein a neutralization reactor is arranged in said recirculation circuit, wherein said neutralization reactor has at least a first region and a second region, wherein the first region is arranged fluidically in the recirculation circuit upstream of the second region, wherein the first region has at least one nitric acid supply apparatus, wherein the second region is a shell-and-tube reactor, wherein the tubes of the shell-and-tube reactor are designed for supplying ammonia, wherein the first region includes at least a first perforated plate, wherein the first perforated plate is arranged perpendicular to the direction of flow, wherein said first perforated plate is arranged in the direction of flow upstream of the nitric acid supply apparatus.

Abstract: Radial piston pump and a method of assembly of the radial pump in particular radial piston pump, including a drive shaft having an eccentric and at least one piston-and-working-chamber combination, wherein the piston-and-working-chamber combination comprises a cylinder bore and a piston, wherein the cylinder bore has a fluid outlet duct, the cylinder bore is closed with a cover, wherein the cover is received in a cover receptacle bore, the cylinder bore has a longitudinal axis, and the cover receptacle bore has a longitudinal axis, wherein the longitudinal axis of the cylinder bore and the longitudinal axis of the cover receptacle bore are not congruent, in particular are displaced in parallel.

Abstract: A method of burning material, such as carbonate rock, in a parallel-flow regenerative shaft kiln having two shafts which are operated alternately as burning shaft and as regenerative shaft and are connected to one another by a connecting duct, wherein the material flows to a material outlet through a material inlet into a preheating zone for preheating of the material, a burning zone for burning the material and a cooling zone for cooling the material, wherein a cooling gas is admitted into the cooling zone, wherein offgas is discharged from one shaft of the kiln via an offgas outlet disposed within or above the preheating zone and wherein the offgas discharged from the shaft via the offgas outlet is branched into a first portion of the offgas and a second portion of the offgas, and wherein the first portion of the offgas is fed via a first offgas inlet to an upper region of the preheating zone, wherein the second portion of the offgas discharged from the shaft is fed to the preheating zone via a second offga

Abstract: A braking system for a motor vehicle comprises at least two braking devices each with a brake actuator, wherein each of the brake actuators has an electric actuating motor, and wherein the braking devices are connected to a central control unit which is designed for connecting to at least one input device. In order to reduce the complexity in terms of production and assembly and to increase safety, at least two wheel brake control units are provided, which are each connected to a brake actuator, and which are connected to the central control unit.

Abstract: A plant for thermal treatment of a mineral material comprises a preheater, a calciner and a kiln, wherein the plant comprises a gas inlet and a gas outlet and a material inlet and a material outlet, wherein the constituents are connected for transferral of a material stream from the material inlet to the material outlet via the preheater, the calciner and the kiln, wherein the constituents are connected for transferral of a gas stream from the gas inlet to the gas outlet via the kiln, the calciner and the preheater, wherein the preheater is a multi-stage preheater, wherein the calciner is connected to a heat exchange apparatus for transferral of the material stream exiting the calciner or the preheater is connected to a heat exchange apparatus for transferral of the material stream exiting a stage of the preheater, wherein the heat exchange apparatus is connected to the preheater for recycling of the material stream.

Abstract: An end-stop control valve includes a piston assembly, a valve disc stack-up, and a catch piston, wherein the piston assembly is configured such that, when a contact surface of the piston assembly contacts a contact surface of the catch piston such that hydraulic fluid cannot flow around the piston assembly during an end-of-stroke damping event, the end-stop control valve is configured to operate, first, such that hydraulic fluid flows through the piston assembly and bypasses the valve disc stack-up, and second, such that hydraulic fluid flows through the piston assembly and deflects the valve disc stack-up.

Abstract: A track comprises track modules making up a track chain. Each track module comprises a first and a second track link and a plurality of pin assemblies. Each pin assembly comprises a hinging pin and a main pin bushing. Each hinging pin terminates in two coupling pin ends. Each coupling pin end of said hinging pins fits in a respective pin coupling seat of a track link of an adjacent track module. Each coupling pin end is delimited by a shoulder resting or however arranged for resting against a respective track link of an adjacent track module so as to prevent or limit the axial displacement of said hinging pins relative to the track links of the adjacent track module.

Abstract: The present invention relates to a piston-cylinder assembly for a radial piston compressor. The piston-cylinder assembly comprises a drive shaft with a cylindrical eccentric for guiding the movement of the piston to a top dead center position. A cylindrical piston guide ring guides the movement of the piston to a bottom dead center. Both the cylindrical eccentric and the piston guide ring are connected to the piston by means of respective concave/convex contact surfaces for the positive transmission of the forces.

Abstract: The present disclosure provides a steel component produced from a steel substrate coated with anticorrosion coating. The steel component comprises a steel substrate and, at least on one side of the steel substrate, an anticorrosion coating which comprises at least one first and one second silicon-rich layer (Si1, Si2) and also one first and one second low-silicon layer (A, B). A quotient X formed from a thickness (dB) of the second low-silicon layer (B) in ?m by a thickness (dA) of the first low-silicon layer (A) in ?m is at least 0.4 and at most 1.1.

Abstract: A method for controlling a motor vehicle having a steer-by-wire steering system with front-axle steering unit and rear-axle steering unit in the event of a fault being detected in the front-axle steering unit, comprises vehicle signals relating to a steering input, a position of a steering rack of the front-axle steering unit and a yaw rate of the motor vehicle being detected, the detected vehicle signals being made available to a control unit, the control unit, in order to implement the steering input, generating a first control signal for controlling a steering adjuster of the rear-axle steering unit, wherein the first control signal is generated taking into consideration the steering input, the position of the steering rack of the front-axle steering unit and the yaw rate, and controlling the steering adjuster of the rear-axle steering unit by the generated first control signal.

Abstract: A radial piston compressor comprises a compressor unit and a drive device for driving the compressor unit, wherein the compressor unit includes at least two piston-and-cylinder-bore assemblies, preferably a plurality of piston-and-cylinder-bore assemblies, which are arranged radially around an eccentric shaft, wherein the eccentric shaft is driven by the drive device, wherein each piston-and-cylinder-bore assembly includes a piston, wherein the radial piston compressor, in particular the compressor unit, includes a piston guide ring, wherein the pistons are in contact, in particular in positive engagement, with the piston guide ring, wherein the piston guide ring is elastic, in particular elastic in the radial direction, at least in parts, preferably completely.

Abstract: A radial piston compressor comprises a compressor unit and a drive device for driving the compressor unit, wherein the compressor unit comprises at least one, preferably a plurality of piston/working space combinations which are arranged radially around an eccentric shaft, wherein each piston/working space combination comprises a working space having a piston which is displaceably received therein, wherein the piston is driven by the eccentric shaft, wherein the eccentric shaft is rotatably supported in the radial piston compressor by means of at least three bearings, preferably three bearings.

Abstract: The present disclosure relates to a vibration damper with adjustable damping force, comprising an inner cylinder with at least one working chamber which exhibits a flow connection to a damping-valve device, wherein the damper-valve device is arranged outside of an outer cylinder, wherein the flow connection has been realized in a component that is separate from the inner cylinder, wherein the separate component is constituted by a pressure-stage adapter which constitutes a part of the working chamber and which exhibits a coupling to the damping-valve device, wherein a base piece is arranged at the end of the inner cylinder, wherein the pressure-stage adapter and the base piece have been combined to form a pressure-stage adapter device.

Abstract: An electromechanical brake apparatus for a motor vehicle comprises an adjustment apparatus and a brake component which is connected thereto and which can be adjusted by the adjustment apparatus along an axis and brought into braking engagement with a counter-brake component, wherein the adjustment apparatus has a first actuator and a second actuator which is coupled thereto in series, wherein the first actuator has a rotatably drivable first drive wheel by which a first output element and a first drive element which can be adjusted axially relative thereto can be rotatably driven relative to each other, and the second actuator has a rotatably drivable second drive wheel which is coaxial relative to the first drive wheel and by which a threaded spindle which has a spindle thread which engages in an inner thread of the first actuator can be rotatably driven.

Abstract: An electromechanical brake apparatus for a motor vehicle comprises an adjustment apparatus and a brake component which is connected thereto and which can be adjusted by the adjustment apparatus along an axis and brought into braking engagement with a counter-brake component, wherein the adjustment apparatus has a first actuator and a second actuator which is coupled thereto in series, wherein the first actuator has a rotatably drivable first drive wheel by which a first output element and a first drive element which can be adjusted axially relative thereto can be rotatably driven relative to each other, and the second actuator has a rotatably drivable second drive wheel which is coaxial relative to the first drive wheel and by which a threaded spindle which has a spindle thread which engages in an inner thread of the first actuator can be rotatably driven.

Abstract: In a damping system for a motor vehicle including a working cylinder at least partially filled with hydraulic fluid and a pressure adjustment arrangement containing a pump, a hydraulic accumulator, a first valve and a second valve, each of which is connected via hydraulic lines to the first and second working chambers and wherein the valve position of the valves is adjustable, in particular continuously, a method for adjusting a damping force of the damping system includes the valve position of the valves and/or the volumetric flow rate and/or the speed of the pump being controlled/regulated depending on a predetermined force setpoint acting on the piston rod.

Abstract: An electromechanical braking device for a motor vehicle comprises an actuating device and a brake part, which is connected thereto, is adjustable along an axis by the actuating device and can be brought into braking engagement with a counter-braking part, wherein the actuating device has a first actuating drive and a second actuating drive, which is coupled in series thereto, wherein the first actuating drive has a rotationally drivable first drive wheel and the second actuating drive has a rotationally drivable second drive wheel, which is coaxial to the first drive wheel, wherein a clutch device is arranged between the first drive wheel and the second drive wheel. Adjustment of the air gap may be improved by the clutch device being a friction clutch with a friction element, which is frictionally connectable to a counter-friction element during the engagement of the clutch.

Abstract: A device for the thermal activation of mineral materials comprises a calciner, a reduction device, and a material cooler, wherein the calciner and the reduction device are connected to one another for transfer of calcined material, wherein the reduction device is connected to the material cooler for transfer of color-optimized material, wherein the reduction device is a fluidized bed reactor.