Abstract: A suction device for catching, for example, insects includes a piston arranged for axial movement in the axial direction inside a housing having a suction tube, and a spring attached between the piston and the suction tube. A locking member releasably locks with a latching member when the suction tube is moved in the axial direction against the piston. A trigger is actuated from outside the housing to release the latching member of the piston from the locking member of the suction tube. A spring force from the spring then causes the piston to move away from the suction tube toward the rear wall of the housing, producing a vacuum inside the housing which draws in the insects, spiders and other small animals.

Abstract: Electrical machines having pole teeth which can be equipped with a permanent magnet are intended to be capable of being assembled more easily. Provision is made for this purpose for two pole tooth halves (1,2) to be provided for each pole tooth, each of which two pole tooth halves has two opposing end sides. At least one end-side plate (3), which connects in each case one end side of the two pole tooth halves (1,2) to one another, is used for forming a pocket (5) between the two pole tooth halves (1,2), into which pocket a permanent magnet can be inserted. A space for the permanent magnet can therefore be kept free during assembly of the pole tooth or during winding thereof. Since the permanent magnet only needs to be inserted into the pocket (5) relatively late, the entire assembly process can be simplified.

Abstract: The invention relates to a primary component (2) for an electric motor (1), said primary component (2) being formed from at least one bundle of laminations (3) and comprises at least one flux guiding element (10) on one or both front faces (S1, S2) to reduce the ripple effect, said primary component (2) being separated from a secondary component (7) by a first air gap (?1). The primary component (2) has at least one section (?2) in the region of the flux guiding element (10), said section (?2) being electrically non-conducting (Kel=0) and having a negligibly low magnetic permeability (?r?1).

Abstract: A method for in-situ repair of old underground pipes is disclosed. A breaking tool with a drive or a pipe section is pulled from a typical inspection shaft to the next inspection shaft (machine shaft) by a hydraulic piston-cylinder unit which has a housing that is at least partially located inside the old pipe. The extremely limited interior space of the machine shaft is thereby kept essentially free from machine parts.

Abstract: In a method of making a body part or chassis part of a motor vehicle, several pre-impregnated fiber materials (prepregs) are stacked on top o one another, with an outermost prepreg intended for attachment to a metallic base body being provided with an adhesive. The stacked prepregs are then shaped into a three-dimensional preform which is then compressed with the base body in a press tool for bonding the preform with the base body and allowing the adhesive to cure, thereby producing a joined structure which is allowed to cure.

Abstract: The present invention relates to a mould, in which a completely closed cavity can be formed in one operating state, comprising an injector (10) which is at least partially accommodated in the mould (14) and the discharge opening of which opens into the closed cavity. According to the invention, the injector is designed with a material feed duct (30) and a material return duct (34), wherein the two ducts (30, 34) open into a connecting chamber (32) in the region of the tip of the injector (10) and are flow-connected to one another via said connecting chamber (32). In this case, an injector needle (36) can be switched into at least two operating positions, wherein, in one moved-forward operating position, the discharge opening is closed by means of the tip (38) of the injector needle (36) and, in the other, pulled-back operating position, the discharge opening is flow-connected to the connecting chamber, and the injector (10) is therefore open.

Abstract: A dynamoelectric machine includes a stator in which a winding system is positioned, and at least a multi-part plug housing with a pivot joint between housing parts of the plug housing. The plug housing has at least one plug-type connector with at least two plugging elements. At least one housing part of the plug housing is made of electrically conductive material and connected to at least one plugging element by a flexible electric line. The electrically conductive housing part of the plug housing faces the dynamoelectric machine and is connected in an electrically conductive fashion to an electrically conductive surface of a motor housing of the dynamoelectric machine.

Abstract: In a method for producing hot strips from a deformable lightweight steel which includes as main elements Fe, Mn, Si and Al, melt is cast close to its final dimension in a horizontal continuous strip casting installation under a protective gas to form a pre-strip between 6 and 20 mm, and the temperature of the pre-strip is adjusted after complete solidification and before the beginning of a hot-rolling process. The pre-strip is passed through a device under a protective gas for homogenization in concert with a selective maintenance of the temperature, cooling or heating, and subsequently subjected to a hot-rolling process having at least one pass with a total degree of deformation of at least 50%, and is then reeled as a hot strip following the cooling process. The hot-rolling process is executed in-line or in decoupled manner depending on the ratio of casting speed to rolling speed.

Abstract: In a method for constructing a linear motor, each tooth of a plurality of teeth is provided with two separate tooth halves with removable tooth tips. After removing the tooth tips to expose an open end of the tooth halves, a prewound coil is pushed over the open end of the two tooth halves of each tooth up to an end position, and a magnet is inserted between the two tooth halves of each tooth. The tooth halves have a thickness between the open end and the end position which does not exceed a thickness of the tooth halves at the end position.

Abstract: A method for operation of a compressor supplied by a power converter having an operating condition (BV) for the compressor (12) supplied by a power converter, generated from a measured actual rotational speed (n) of the compressor and a given effective current component (iW) of a measured power converter output current (I) using a stored speed-dependent pump characteristic curve (SG) monitored for validity such that on determining invalidity, as per a stored speed-dependent instantaneous curve, a control signal (SSG) for reducing a torque (M) is generated. A method for operation of a compressor supplied by a power converter is then achieved with which the duration and the intensity of surge conditions is significantly reduced.

Abstract: A measuring device for determining a position and/or a speed includes a scale having marks arranged at spacings from one another, and a scanning head, with the scale and the scanning head being arranged for movement relative to one another along a movement direction. The scanning head is constructed to determine a first spacing of the scanning head in the movement direction relative to a first one of the marks, and a second spacing of the scanning head in the movement direction relative to a second one of the marks, with the position and/or the speed being determined on the basis of the first spacing and the second spacing.

Abstract: The invention relates to a stator (2), in particular for a housing-less electrical machine (1), wherein substantially axially running cooling channels (3, 13) are located in the stator (2), into which channels cooling pipes (4, 6, 7) can be inserted and, at least in sections, means are provided which, by means of deformation of the cooling channels (3, 13), cause the cooling pipes (4, 6, 7) to be pressed against the cooling channel (3, 13) on the side facing the heat sources of the electrical machine (1); efficient liquid cooling is therefore provided.

Abstract: Apparatus and method for filling a container (7), particularly an open bag, with a powdery product has the following features” a net scale (1) situated above a tube arrangement and/or hopper arrangement (2), which terminates in a filler neck (6) above the container (7) to be filled while preferably projecting into this container. An intermediate chamber (3) is arranged downstream of the net scale and upstream of the container (7) to temporarily hold at least a portion of the product released by the net scale, and a compacting device (8, 9) is provided for compacting the product placed inside the container (7).

Abstract: The aim of the invention is to create an inexpensive sensor system for a movable electric machine in order to determine positions, the sensor signal featuring zero crossings. Said aim is achieved by a sensor device (1) comprising a U-shaped yoke (3) and a sensor (10) which is disposed in/on the yoke (3) to detect a magnetic variable, for example. Magnets (6 to 9) that are or can be inversely magnetized are arranged at a free end of the yoke (3). Opposite magnetic fluxes that can be detected by the sensor (10) can be generated in the yoke (3) in accordance with the position of the magnets (6 to 9) relative to one of the pole teeth (11, 12, 13) of a machine component. Approximately sinusoidal sensor signals can be generated therefrom without having to use several measuring sensors, e.g. in order to regulate a linear motor.

Abstract: The invention relates to an electric machine (2) comprising a rotor (6) that contains a shaft (18, 22) that is located, when in operation, in the ambient temperature range, and a superconducting rotor winding (30) that is cooled to a cryogenic temperature when in operation and which is arranged on the shaft (18, 22). Said machine also comprises a cooling system (8) for cooling the rotor winding (30), said system comprises a compensation pressure reservoir (50, 64) for a cooling medium (42). In said electric machine, the compensation pressure reservoir (50, 64) is arranged on the shaft (18, 22).

Abstract: The aim of the invention is to create a combined linear-rotary drive that has a compact, simple, and inexpensive design. Said aim is achieved by a combined drive comprising a linear driving device (3) and a rotary driving device (11), at least one of the two driving devices being provided with a hybrid reluctance motor. It is particularly advantageous to embody both driving devices as hybrid reluctance motors such that the rotor (4) can be produced at a low cost without permanent magnets in addition to ensuring that the drive has a very compact design.

Abstract: A tool-changing device includes a tool gripper and a stroke and pivoting actuator for operating the tool gripper. The stroke and pivoting actuator can be driven by a first direct drive for producing a linear movement and by a second direct drive for producing a rotational movement, wherein the first and the second direct drives have a common rotor which serves as the stroke and pivoting actuator.

Abstract: Disclosed is a retainer bearing (1) for retaining a rotor shaft of an electric machine. Said retainer bearing (1) comprises an outer bearing ring (2) and an inner bearing ring (5). At least one gliding element (7) which is preloaded in a radial direction of the retainer bearing (10) is inserted between the outer bearing ring (2) and the inner bearing ring (5).

Abstract: The invention relates to a synchronous motor (12) with a number of stator coils (15), with a rotor (16) with at least one permanent magnet (17), which induces a rotor magnetic field in a useful flux direction and with at least one coil winding (20), which is fitted on the rotor in order to induce a resultant magnetic field as a result of an alternating magnetic fields which is applied with the aid of the stator coils, in the direction of a winding axis of the coil winding, so that a resultant inductance of the stator coils (15) with respect to a direction of the winding axis is different given different positions of the rotor (16).

Abstract: A diesel-electric drive system having a generator mechanically connected to a diesel motor on the rotor side and linked to a voltage source (intermediate) inverter on the stator side. The voltage source inverter is connected to a self-commuting pulse power converter on the generator and on the load side as well as to a brake resistor. The generator has two multiple-phase coil systems which are each electroconductively linked to a self-commuting pulse power converter on the generator side, wherein the second self-commuting pulse power converter on the generator side is switched electrically parallel to the voltage source (intermediate) circuit of the voltage source (intermediate) inverter on the generator side. At least one input phase of the first self-commuting pulse power converter on the generator side is electroconductively linked via a brake resistor to a input phase of the second self-commuting pulse power converter on the generator side.