Abstract: The invention relates to a dynamoelectric machine (1) comprising a stator (2) and a rotor (3). At least the stator (2) has a winding system (4) which is arranged in grooves of the stator (2). Heat is transferred in a substantially radial direction on the front sides (6) of the stator (2) by means of heat pipes (5).

Abstract: A simple and universal technique for fabricating different antenna structures, in particular a multilayer antenna structure, on a substrate is disclosed. Before the antenna is actually fabricated or placed on the substrate, connecting surfaces for connecting an antenna conductor and/or a chip or a chip module as well as through-platings extending through the antenna substrate are prepared between the connecting surfaces.

Abstract: A connecting device for connecting a mullion to a transom, each having a T-shaped metal profile fastened to the end face thereof in order to accommodate panes of glass, wherein the mullion is connected to the transom by means of a main connecting device and reinforcing means are provided to increase the stability of the mullion/transom connection, is characterized in that the reinforcing means is a reinforcing plate having the following features: a base-plate portion with fastening holes for fastening to the end face of the mullion, said mullion having a recess corresponding to the size and thickness of the base-plate portion, wherein the recess is open laterally, and two tongues bent in parallel to the plane of the base-plate portion, extending at a distance to one another and provided with fastening holes, said tongues engaging over the projecting T-shaped metal profile of the transom.

Abstract: A device for nondestructive testing of a pipe made of ferromagnetic steel for detection of longitudinal, transverse or inclined flaws using magnetic or magnetic-induction test procedures is disclosed. The device includes a magnetizing yoke which transmits the magnetic flux contactless into the pipe and at least two magnetic-field-sensitive scanning probes having GMR sensors. The GMR sensors are combined into sensor groups in form of a sensor array and electrically connected in parallel. A single preamplifier connected to each sensor group in one-to-one correspondence. The device further includes an evaluation unit.

Abstract: The invention relates to a rod coupling for rod segments for use in horizontal earth boring, wherein the ends of the rod segments can be interconnected and are fixed by means of a cross pin.

Abstract: The invention relates to a circuit arrangement for the selective operation of at least two electric machines (1, 2) that are each supplied via a plurality of phase lines, comprising:—one voltage protection module (5) for limiting an intermediate circuit voltage,—one switch arrangement (4) for selecting one of the electric machines by switching the phase lines;—first choke inductivities (8) in each of the plurality of phase lines between the circuit arrangement (4) and the voltage protection module (5), wherein one second choke inductivity (9?) each may be switched parallel to one or more first choke inductivities (8) as a function of the selected electric machine (1, 2), can be switched.

Abstract: A method and a device for operating a machine tool are disclosed, wherein a machining operation of the machine tool is controlled by a parts program by storing a simulated configuration of the machine tool in the parts program, determining an actual configuration of the machine tool, comparing the actual configuration with the simulated configuration of the machine tool stored in the parts program, and generating a warning message if the actual configuration is not in conformance with the simulated configuration. This prevents errors in the machining process resulting from a discrepancy between the configuration of the machine tool used in the simulation of the parts program and the configuration of the actual machine tool during the actual machining operation.

Abstract: The invention relates to a device for adjusting the camber and/or toe of the wheels (20) of wheel suspensions (10), especially for motor vehicles, including a wheel carrier (12) on which the respective wheel (20) is rotatably mounted and which is subdivided into a carrier part (24) receiving the wheel, a guide part (22) connected to the wheel suspension (10), and two rotary parts, especially control cylinders (26, 28), arranged between the carrier part and the guide part and rotatable in relation to each other, to the carrier part (24) and to the guide part (22) about a common rotation axis (32). Each of the rotary parts can be moved by a drive (40) and a servo drive (42) in both directions of rotation. According to the invention, the servo drive (42) is designed for at least one of the rotary parts (26, 28) as a planetary gear train (42), and the planetary gear train (42) is especially radially externally arranged around the rotary part (26, 28).

Abstract: The invention relates to a method for reducing vibrations of a machine element (9) and/or a workpiece (5) in a machine tool, a production machine and/or in a machine which is embodied as a robot. A clamping force (F), which is used to lock the workpiece (5) and which makes the workpiece holder (2a, 2b, 2c, 2d, 2e, 11a, 11b) act upon the workpiece (5), is modified when vibrations occur. The invention also relates to a corresponding machine. Due to said invention, vibrations of a machine element (9) and/or a workpiece (5), which occur during a machining process, are reduced.

Abstract: The seat assembly (1) for a land vehicle, sea vessel, or aircraft comprises a vertically adjustable seat (4) supporting the buttocks of a user and a plurality of cables (9-12) disposed between the seat (4) and structural parts (8) of the vehicle. The seat (4) forms at least indirectly the component of a platform (2), which can be displaced along the cables (9-12) and fixed in the respective position on the cables (9-12). The cable sections (9a-12a, 9b-12b) located above and beneath the platform (2) extend between the platform (2) and the structural parts (8) such that they either point toward the vertical center axis (MA) of the platform (2) or are directed away therefrom. The cables (9-12) can be guided via at least one height adjustment device.

Abstract: A photovoltaic system includes an inverter, a photovoltaic generator with a plurality of serially connected photovoltaic modules, said photovoltaic generator connected to the inverter by an electrical supply line, a controllable fuse interconnected in the electrical supply line between the inverter and the photovoltaic generator and having a signal input, and a voltage-dependent resistor connected between the signal input of the controllable fuse and the electrical supply line and generating a control signal which triggers the controllable fuse responsive to the control signal and interrupts the electrical supply line. The controllable fuse can be used to disconnect the electrical connection of the photovoltaic system to the inverter when a switch short-circuiting one or more modules of the photovoltaic generator malfunctions. The arrangement permits operation of photovoltaic system at an operating voltage of close to 1000 V, thereby allowing use of thinner cables.

Abstract: The invention relates to an apparatus for making a seamless hollow body (10) from a solid round block (7) of steel with a diameter <95% of the diameter of the solid round block by means of a two-roll cross-rolling mill with a piercing mandrel (3) held between the inclined roll (1) and including a piercer (5) and at least one smoothing part (4) using pass-closing guides, or by means of a three-roll cross rolling mill with a piercing mandrel held between the inclined rolls and including a piercer and at least one smoothing part, wherein the distance of the rolls is adjusted in a particular manner at the narrowest cross-section (2) in relation to the diameter of the used round block, and the position of the piercing mandrel is adjusted in relation to the narrowest cross-section of the rollers.

Abstract: A linear unit, having a drive unit which is mounted in a guide tube (1) and supports a guide carriage (5) for holding a workpiece, a tool or the like, composed of a threaded spindle (2) and a spindle nut (4), wherein the guide carriage (5) or the spindle nut (4) is guided in a longitudinal groove (3) of the guide tube (1) in a rotationally fixed and axially movable manner, is embodied in such a way that the guide tube (1) is composed of a sheet metal strip which is curved around an imaginary longitudinal axis.

Abstract: A bumper for a motor vehicle has a cross member disposed transversely in relation to side rails of a vehicle frame and is supported on the side rails by crash boxes. The cross member includes a central longitudinal section having opposite ends, a crash box attachment section with a substantially vertical rear wall and two legs, and an end section having in cross-section a U-shaped configuration defined by two legs and a web which interconnects the legs and forms an outward-projecting bulge. The bulge is joined with the substantially vertical rear wall of the attachment section.

Abstract: In a method of making a tubular support bar for a dashboard support, a sheet metal blank is placed in a first forming tool and pressed in a first shaping step by a ram into a U-shaped cavity of a first bottom die to form a U-shaped member. While remaining in the first bottom die, the U-shaped member is provided with connecting elements in the form of weld nuts by a automated placement device. Subsequently, the U-shaped member is transferred to a second forming tool and undergoes a second shaping step between a top die and a second bottom die to form a slotted tube. The longitudinal edges of the slotted tube are then joined together to form the support bar.

Abstract: A residual-current circuit breaker includes a summation current transformer having a core, a first secondary winding wound onto the core, and at least one second secondary winding wound onto the core, with lines of an electric network to be protected extending through the core. A tripping apparatus is operably connected to break contacts for opening the break contacts. A first arrangement is provided for detecting alternating residual currents and connected to the first secondary winding of the summation transformer. A second arrangement is connected to the second secondary winding for detecting direct residual currents, wherein a predeterminable alternating operation of the first and second arrangements is controlled by a timer device.

Abstract: An exhaust gas assembly includes an exhaust gas manifold which is connected with an exhaust gas inlet of a manifold and an adjusting member arranged in the manifold. The adjusting member is configured to supply exhaust gas to a low pressure connection and/or a high-pressure connection of the manifold, wherein on the high-pressure side a high-pressure turbine housing is connected to the manifold and on the low pressure side a low pressure turbine housing is connected to the manifold. A connecting channel extends through the manifold and connects a high-pressure exhaust gas outlet) of the high-pressure turbine housing with a low pressure exhaust inlet) of the low pressure turbine housing.

Abstract: A method for providing comprehensive documentation information of complex machines and systems, in particular an injection molding machine is disclosed. Each of the machine components has a storage device that stores information specific for the machine component; in addition, an individual identification is assigned to each of the machine parts. An overall documentation of the machine is generated by combining the component-specific information from a first documentation memory and the part-specific information from a second documentation memory. The overall documentation is displayed on an output device to allow an operator to determine an up-to-date machine configuration and machine state and to intervene in operation and maintenance of the machine.

Abstract: In a diagnostic method for at least one ball bearing, in particular for an angular-contact ball bearing for bearing a rapidly rotating spindle, mechanical vibration caused by the respective angular-contact ball bearing is acquired by at least one vibration sensor and outputted as a corresponding vibration signal. At least one bearing characteristic, fundamental kinematic frequency dependent on a current bearing rotational frequency is determined by computation. A corresponding bearing frequency in a measurement frequency spectrum of the respective vibration signal is determined by measurement. A first diagnostic message is output when at least one of the determined bearing frequencies deviates by a respective prescribed frequency deviation from the corresponding computational fundamental kinematic frequency.