Abstract: A multi-plate clutch is specified, with an outer plate carrier, an inner plate carrier and a plate pack which consists of alternately arranged outer plates and inner plates and is arranged radially between the outer plate carrier and the inner plate carrier, wherein a first group of the outer plates is mounted on the outer plate carrier and/or a first group of the inner plates is mounted on the inner plate carrier with a larger circumferential backlash than the other outer plates or inner plates, respectively, which are mounted on their plate carrier with no or smaller circumferential backlash, wherein the outer and/or inner plates with larger circumferential backlash in each case directly adjoin at least one plate with no or smaller circumferential backlash. Furthermore, an electrically operated drive train and a method for producing a multi-plate clutch are specified.

Abstract: The invention relates to a marine meachanical seal arrangement comprising a first mechanical seal (2) comprising a first rotating slide ring (21) and a second stationary slide ring (22) defining a first sealing gap (23) between their two sliding surfaces (21a, 22a), a second meachanical seal (3) comprising a second rotating slide ring (31) and a second stationary slide ring (32), which define a second sealing gap (33) between their sliding surfaces (31a, 32a), a barrier circuit (10) comprising a barrier fluid cavity (8) which is arranged between the first mechanical seal (2) and the second mechanical seal (3) and is filled with a barrier fluid, the barrier fluid cavity (8) being divided into a first sub-cavity (81) and a second sub-cavity (82), the first subcavity (81) and the second subcavity (82) being separated by a flexible lip seal (7) wherein the second sub-cavity (82) is arranged at the second mechanical seal (3), and wherein the lip seal (7) is arranged such that a flow of barrier fluid from the first

Abstract: A multi-plate clutch is specified, with an outer plate carrier, an inner plate carrier and a plate pack which consists of alternately arranged outer plates and inner plates and is arranged radially between the outer plate carrier and the inner plate carrier, wherein a first group of the outer plates is mounted on the outer plate carrier and/or a first group of the inner plates is mounted on the inner plate carrier with a larger circumferential backlash than the other outer plates or inner plates, respectively, which are mounted on their plate carrier with no or smaller circumferential backlash, wherein the outer and/or inner plates with larger circumferential backlash in each case directly adjoin at least one plate with no or smaller circumferential backlash. Furthermore, an electrically operated drive train and a method for producing a multi-plate clutch are specified.

Abstract: A coupling device for coupling two components in a torque-conducting manner is described. It comprises a first coupling component having a first external toothing and a second coupling component having a second external toothing. In addition, the coupling device has a sliding sleeve having an internal toothing which is permanently engaged with the first external toothing and can be selectively brought into engagement with the second external toothing. Furthermore, a locking unit is provided which can selectively assume a locking state in which the sliding sleeve is held in a form-fitting manner in a rotationally coupled state. In addition, the locking unit can selectively assume an unlocking state. A method of operating a coupling device is also presented.

Abstract: The invention relates to a marine meachanical seal arrangement comprising a first mechanical seal (2) comprising a first rotating slide ring (21) and a second stationary slide ring (22) defining a first sealing gap (23) between their two sliding surfaces (21a, 22a), a second meachanical seal (3) comprising a second rotating slide ring (31) and a second stationary slide ring (32), which define a second sealing gap (33) between their sliding surfaces (31a, 32a), a barrier circuit (10) comprising a barrier fluid cavity (8) which is arranged between the first mechanical seal (2) and the second mechanical seal (3) and is filled with a barrier fluid, the barrier fluid cavity (8) being divided into a first sub-cavity (81) and a second sub-cavity (82), the first subcavity (81) and the second subcavity (82) being separated by a flexible lip seal (7) wherein the second sub-cavity (82) is arranged at the second mechanical seal (3), and wherein the lip seal (7) is arranged such that a flow of barrier fluid from the first

Abstract: A computer system that simulates a workload of a storage system including a non-transitory storage medium including instruction code for the computer system, wherein the instruction code, when executed on the computer system, performs steps as follows: obtaining configuration data regarding first components of the first storage system including at least one RAID group; obtaining performance data including workload information of the first storage system; configuring second components of a second storage system including at least one corresponding RAID group corresponding to the at least one RAID group of the first storage system, based on the obtained configuration data; and operating the second storage system using a simulated workload based on the obtained performance data, resulting in a front loading of the second storage system equivalent to a front loading of the first storage system.

Abstract: The invention relates to a pipe store for supplying and discharging pipe bodies, in particular drill rods, casing pipes, and/or drill-string parts, such as drill collars, drilling motors or the like, to and from a drilling rig for creating deep wells, having a basic structure, having at least one framework which is provided in the form of a transporting and storage framework for pipe bodies and in which a plurality of pipe bodies are arranged to form a load, and having a removal apparatus for removing the pipe bodies from the framework and supplying the pipe bodies into the framework, characterized in that the basic structure has at least two accommodating portions for accommodating the framework in an essentially horizontal arrangement, in that, following insertion into the accommodating portion, the framework is fastened in a rotatable manner therein, and can be transferred from a horizontal orientation into a vertical orientation by means of a lifting element, in that each of the pipe bodies can be individ

Abstract: The invention relates to a method and an apparatus for converting the energy of an energy storage (2) for operating an arc (6), wherein a power unit (3) and an input and/or output device (5) for setting the current for operating the arc (6) is used to convert energy, as well as an appropriate welding device. In order to be able to provide the user with information on the state of energy storage (2), the time remaining for operating the arc (6) using the set current is calculated depending on a determined capacity of the energy storage (2) and a value for the current set on the input and/or output device (5), and said time is displayed on a corresponding display unit (27).

Abstract: The invention relates to a method and an apparatus for converting the energy of an energy storage (2) for operating an arc (6), wherein in order to convert energy, at least one switch (9) of a step-down converter is switched on and off in a controlled manner, wherein said at least one switch (9) is connected to the energy storage (2) at the input end. In order to be able to supply as much of the limited energy available from the energy store (2) to the arc (6), it is provided that a synchronous converter is used as the step-down converter for operating the arc (6), and that the at least one switch (9) of the synchronous converter that is designed as a power unit (3) is connected to a snubber circuit (10) at the output end such that at least the switch (9) is switched on and off in an snubbed state.

Abstract: The present invention refers to a wellbore conveyor device for conveying a medium (9) from a wellbore (8), comprising: a drive (2); a pump (3); a shaft (4) which connects the drive (2) to the pump (3); a mechanical seal unit (5), comprising a mechanical seal (50) with a rotating seal ring (51) and a stationary seal ring (52), the mechanical seal (50) sealing on the shaft (4); and an independent supply means (6) which supplies the mechanical seal (50) with a barrier medium, the independent supply means (6), the drive (2), the pump (3), the shaft (4) and the mechanical seal unit (5) forming a compact conveying unit which is fully submersible in the wellbore.

Abstract: The invention relates to a pipe store for supplying and discharging pipe bodies, in particular drill rods, casing pipes, and/or drill-string parts, such as drill collars, drilling motors or the like, to and from a drilling rig for creating deep wells, having a basic structure, having at least one framework which is provided in the form of a transporting and storage framework for pipe bodies and in which a plurality of pipe bodies are arranged to form a load, and having a removal apparatus for removing the pipe bodies from the framework and supplying the pipe bodies into the framework, characterized in that the basic structure has at least two accommodating portions for accommodating the framework in an essentially horizontal arrangement, in that, following insertion into the accommodating portion, the framework is fastened in a rotatable manner therein, and can be transferred from a horizontal orientation into a vertical orientation by means of a lifting element, in that each of the pipe bodies can be individ

Abstract: A computer system that simulates a workload of a storage system including a non-transitory storage medium including instruction code for the computer system, wherein the instruction code, when executed on the computer system, performs steps as follows: obtaining configuration data regarding first components of the first storage system including at least one RAID group; obtaining performance data including workload information of the first storage system; configuring second components of a second storage system including at least one corresponding RAID group corresponding to the at least one RAID group of the first storage system, based on the obtained configuration data; and operating the second storage system using a simulated workload based on the obtained performance data, resulting in a front loading of the second storage system equivalent to a front loading of the first storage system.

Abstract: The invention relates to a drive device (1) for water vehicles comprising a propeller (2), a drive mechanism (3) for driving the propeller (2), and a magnetic coupling (4) which is arranged between the propeller (2) and the drive mechanism (3), wherein the magnetic coupling (4) comprises an outer magnetic element (7), an inner magnetic element (9) and a can (11), and wherein the can (11) is arranged between the inner magnetic element (9) and the outer magnetic element (7).

Abstract: The invention relates to a method for creating a deep borehole, in particular in an emission-sensitive region, and to a device therefor. The invention is based on the object of providing a drilling method and a drilling device allowing deep boreholes to be created even in regions which are sensitive to emissions, such as inner-city buildings or in nature regions to be protected, and at the same time of reducing significant damage to these regions when creating deep boreholes. This object is achieved in that a shaft structure (20) is created, a stationary drilling system (10) is installed into the shaft structure (20), the floor (23) of the shaft structure is prepared as a drilling starting point and the deep borehole is sunk using a suitable drilling method.

Abstract: The invention relates to a drive device (1) for water vehicles comprising a propeller (2), a drive mechanism (3) for driving the propeller (2), and a magnetic coupling (4) which is arranged between the propeller (2) and the drive mechanism (3), wherein the magnetic coupling (4) comprises an outer magnetic element (7), an inner magnetic element (9) and a can (11), and wherein the can (11) is arranged between the inner magnetic element (9) and the outer magnetic element (7).

Abstract: The invention relates to a device for controlling an appliance, which cooperates with a human operator, wherein the appliance comprises an appliance-side safety device (10), which can interact with an enabling element (12) provided with memory means (80,82,84) and associated with a particular, authorized human operator, the appliance being operable only after interaction with the enabling element (12). In one application the occurrences to be watched can be stored in the memory means (80,82,84) of the enabling element, for example for watching motor vehicles with regard to unacceptably long driving times of a particular driver. In another application, the control means of aircraft are watched to ensure that the aircraft can be flown only by an authorized pilot. Invariable body characteristics of the driver or pilot, for example a finger print, are stored in the enabling element. The real body characteristics are detected by sensors and are compared with the stored ones.

Abstract: In a method and a device for controlling a brake system, the wheel brake pressure is set at the wheel brakes electrically as a function of the driver's braking input. The high-pressure supply arrangement for pressure buildup, for which at least one pump and one accumulator are provided, is monitored by comparing the change in accumulator pressure to a least one permissible limiting value. In the case of a fault in the pressure supply, it is made possible for the driver to grip through hydraulically to the wheel brakes.

Abstract: In a method and a device for controlling a brake system, the wheel brake pressure is set at the wheel brakes electrically as a function of the driver's braking input. The high-pressure supply arrangement for pressure buildup, for which at least one pump and one accumulator are provided, is monitored by comparing the change in accumulator pressure to a least one permissible limiting value. In the case of a fault in the pressure supply, it is made possible for the driver to grip through hydraulically to the wheel brakes.

Abstract: A method and device for controlling a braking system of a motor vehicle in open loop, in which the wheel-brake pressure in the individual wheel brakes is adjusted via closed pressure-control loops. Different secondary braking operations are initiated depending on the fault condition. The faults are detected on the basis of a model which takes into account the prevailing operating state of the braking system.

Abstract: A hydraulic vehicle brake system in which normal service brake operation can be carried out by using external hydraulic energy, and in the event of a lack of external hydraulic energy, auxiliary brake operation by muscle power is possible, with a hydraulic transmission that comes from a master cylinder that can be actuated by means of the brake pedal. The external hydraulic energy is stored, for example, in an accumulator with a gas buffer, which can lead to a gas content in the hydraulic fluid for the service brake operation. The system includes a dual-circuit master cylinder associated with those wheel brakes of a vehicle axle that make a higher contribution to the vehicle deceleration and at the same time, cylinder/piston devices are installed between these wheel brakes and their associated service brake valves for the purpose of preventing hydraulic fluid from getting into these wheel brakes from the external energy source.