Abstract: Converter and method for controlling a converter with power semiconductor switches, having a filter (1) which is connected to the power semiconductor switches and having a drive circuit (4) which is connected to the power semiconductor switches for the purpose of modulation, wherein, as a result of the modulation, a fundamental at a fundamental frequency (fGS) is generated in a passband (P) of the filter (1), modulation products are generated in a first frequency band (FB1), in a second frequency band (FB2) and in an intermediate frequency band (ZFB) which is formed between the first frequency band (FB1) and the second frequency band (FB2), the modulation products in the intermediate frequency band (ZFB) are reduced in comparison with the modulation products in the first frequency band (FB1) and the modulation products in the second frequency band (FB2); and the intermediate frequency band (ZFB) is generated, in a resonant range (R) of a resonant frequency (fres) of the filter (1), between the passband (P) an

Abstract: A superconductive synchronous machine having superconductive magnetic bearings. A superconductor (6) on the stator side as a first bearing part is disposed opposite from a second bearing part (12) on the rotor side, the second being part being magnetically and mechanically connected via a flux feed section (11) to the pole core (9) of the rotor. A superconductive exciting coil (10) in the rotor pole core (9) excites both the pole core (9) and the second bearing part (12). In order to cool the superconductive exciting coil (10), coolant feeds (16, 16?, 24, 25) are provided, which are sealed in relation to the rotor shaft (8, 8?) by ferrofluid seals (26). The power for the exciting coil is fed via slip rings (21) or by being inductively connected (29) at the rotor shaft (8?).

Abstract: An electrical machine includes a stator having circumferentially arranged winding heads, with a winding head space being defined radially beneath the winding heads. Interacting with the stator is a rotor which has a rotatable laminated core. A magnetic brake is received in the winding head space and includes a magnet module having at least one permanent magnet which is axially resiliently fixed and constraint against rotation and which is magnetized in an axial direction, and an electromagnet which is arranged axially adjacent to the permanent magnet and securely fixed thereto. The electromagnet produces a magnetic field with a main direction oriented in an axial direction. Interacting with the at least one permanent magnet and the electromagnet is a ring-shaped armature which is secured directly and rigidly to the rotor so as to establish a fixed rotative engagement between the armature and the rotor.

Abstract: The invention relates to a boring head for a ground-boring device displacing earth with a percussive action, comprising at least three boring head sections, of which the first section has a form optimized for the loosening and for guiding the device, the second section is optimized with regard to the radial displacement of the earth with low resistance to motion, and the third section has a fixed connection to the housing of the ground-boring device. Improved transmission of the advancing forces to the earth and consequently an improved advance of the ground-boring device can be achieved by at least two of the boring head sections being designed so as to be axially movable relative to one another in the longitudinal direction.

Abstract: A bumper of a motor vehicle includes a cross member which is disposed transversely to a side rail of a motor vehicle frame and movable from a standby position in a direction of the motor vehicle. Placed between the cross member and the side rail is a crash box. A coupler maintains a distance between the cross member and the crash box, when the cross member assumes the standby position, and a strut extends at an inclination between the cross member and the crash box to connect the cross member to the crash box. The strut is supported upon the cross member by a linear guide and supported upon the crash box by a swivel joint.

Abstract: A fabric packing has a plurality of layers made of a filament of metal or plastic and includes bulges for maintaining the fabric layers at a distance. The bulges have first protuberances of generally trough-shaped configuration and second protuberances formed on the first protuberances, thereby defining respective apexes. The second protuberances are sized smaller than the first protuberances, wherein neighboring fabric layers are supported on one another via the second protuberances.

Abstract: An exhaust-noise attenuation muffler includes two half-shells, each including an inner shell and an outer shell which are made through deep drawing of a sheet metal blank which can have a thickness between 0.3 mm and 0.5 m. The inner shell or the outer shell is provided with an embossment. After placing the inner shells in corresponding ones of the outer shells to form half-shells, two complementing half-shells are joined together.

Abstract: A machine includes a moving part and a direct drive for moving the moving part. The direct drive includes a stator and an armature unit which interacts with the stator. A coupling device couples the armature unit to the moving part to allow a movement of the moving part in relation to the armature unit. The direct drive further includes a spacer device to maintain a distance between an active region of the stator and an active region of the armature unit, thereby defining the air gap between the stator and the armature unit.

Abstract: A chassis arrangement includes a stabilizer having a single-piece center part with opposite ends, a first stabilizer arm connected to one of the opposite ends of the center part, and a second stabilizer arm connected to the other one of the opposite ends of the center part. A stabilizer support assembly having two support units supports the center part in relation to a vehicle body. Operatively connected to the center part are at least two brake units for influencing a twistability of the center part, with one of the brake units being arranged between one of the support units and an adjacent one of the first and second stabilizer arms, and the other one of the brake units being arranged between the other one of the support units and an adjacent one of the first and second stabilizer arms.

Abstract: To be able to scan the sprocket holes of a film with improved precision by means of a film scanner, in which a correction signal is generated for compensating picture steadiness errors, it is proposed that the light source generates light in the infrared range, and that the scanning sensor(s) is (are) sensitive in the infrared range.

Abstract: The invention relates to a device for safeguarding uninterrupted power supply of a magnetic bearing (5) in the event of a power supply voltage (U) failure. Said device comprises: a first frequency converter (2) which is supplied with power by the supply voltage (U) and controls a motor (3), and a transformer (7) which is connected to a rectifier (8) and the motor (3), said rectifier (8) supplying a DC-link electric circuit (11) of a second frequency converter (14) controlling the magnetic bearing (5) with power in the event of a power supply voltage failure. The invention allows prevention of damages to the magnetic bearing in the event of disruption of power supply of the magnetic bearing in the event of a power supply voltage failure.

Abstract: An electric motor with a magnet free main drive component, as stator or secondary part, having a measuring system for determining positions and directions with increased resolution is proposed. Said electric motor comprises a first engine part (140), being moveable in relation to a second engine part (110). A number of magnetic field sensor devices (160) of the measuring system are attached on the first engine part (140), being separated from each other along the direction of movement. The second engine part (110) comprises magnet free pole-teeth (120), being also separated from each other along the direction of movement. Each of the magnetic field sensor devices (160) has at least one magnet, the magnetic field thereof being directed through one of the pole-teeth (120) for detection by a sensor of the magnetic field sensor device. The space between each two of the magnetic field sensor device (160) is different to the space between each two of the pole-teeth (120).

Abstract: A method is disclosed for analyzing an AC voltage signal with a transformation which transforms the signal from a representation in the time-domain to a representation in the frequency-domain. This transformation can be a fast Fourier transform, a discrete Fourier transform or a Laplace transform. By selecting a second higher sampling frequency which is an integer multiple of a first sampling frequency, the zero crossings of the AC voltage signal can be accurately determined.

Abstract: An amusement ride includes a support structure generally having the shape of a vertical standing arch that spans from a first ground base to a second ground base. Movably supported on the support structure is at least one vehicle for carrying one or more passengers at least partially along a length of the support structure from an initial loading position at one of the first and second ground bases. The vehicle is hereby lifted by a lifting device from the initial loading position upwards along the support structure and slowed down by a braking mechanism when it travels from an elevated position in a downward direction along the support structure.

Abstract: The invention relates to a measuring device comprising a transmitter (1) for measuring a position and/or a rotational speed of a rotary element (2), a housing (3), and a plate (4) comprising a recess for receiving a transmitter (1), the transmitter (1) being rotatably arranged in relation to the plate (4). The transmitter (1), the plate (4) and the housing (3) are arranged in such a way that when the housing (3) is connected to the base body (5), the housing (3) presses the plate (4) against the base body (5). In this way, the transmitter (1) is pressed against the base body and the housing is pressed against the plate. The invention also relates to a method for fixing a housing of the above-mentioned measuring device. The angular position of the housing can be modified independently of the angular position of the transmitter in relation to a base body.

Abstract: The invention relates to an electrical machine (1) having a stator (4) and a rotor (3), with the rotor (3) having a plurality of axially arranged cooling channels (8) and a first (5a) and a second (5b) end face, and a fan unit (6) being arranged adjacent to each end face and comprising at least two 10 fan segments (7), with one fan segment (7) in each case being associated with one cooling channel (8) and being arranged alternately adjacent to the first (5a) and the second (5b) end face, and with the fan segment (7) having at least one air guide channel (7a) and at least one air guide wall (7b).

Abstract: The invention relates to a multiphase line fuse module. According to the invention, said multiphase line fuse module comprises a busbar pack (32), interposed between two supporting plates (16, 42), at least one line fuse (52, 66) with an associated AC contactor (54) per phase, said phase assemblies being arranged one on top of the other in front on a small face of the busbar pack (32) having connections (56, 58) on the small face and being electrically connected to the small face connections (56, 68), and a cover closing the phase assemblies on the front side. The invention thus provides a space-saving system for line fuses (52, 66), AC contactors (54) and busbars in one housing, thereby allowing an easy replacement of the wearing parts.

Abstract: The invention relates to a pulse resistor for a frequency converter in the higher voltage and capacity range. The inventive pulse resistor is characterized by comprising at least two bipolar subsystems (24) and a resistor element (14), said subsystems (24) and said resistor element (14) being connected in series. The inventive pulse resistor is devoid of the drawbacks of known pulse resistors, it can be finely controlled by a brake current (iB) and can be adapted to any medium voltage by simple means.

Abstract: The invention relates to an asynchronous motor comprising a stator or a cage rotor, said cage rotor comprising a shaft (1) and a laminated bundle (2) and rotor rods (3) are arranged within the laminated bundle, running through the openings (10) of each end plate (9) at both ends of the laminated bundle (2) and terminated with a short-circuit ring (4) which electrically connects the ends of the rotor rods (3) on one side of the cage rotor. Each end plate (9) comprises a circumferential projection which at least partly covers the short circuit ring (4) on the outside thereof with a positive fit and each end plate (9) contains a part of the rotor rod (3) and a part of the short circuit ring (4).

Abstract: A cationic finished textile material, in particular in the form of a cloth, rag or the like, includes a textile fabric composed of textile fibers, wherein the fibers having a permanent cationic finish, wherein the textile material is at least partly raised. The cationic finished textile material is particularly useful for preventing discolorations and/or graying of textiles in the wash or for preventing depositions of dyes on textiles in the wash.