Abstract: An aim of at least one embodiment of the invention is to reduce ripple forces in a magnetic levitation transport system to the largest extent. In one solution, an example embodiment of the invention provides that grooves extending transversal to the longitudinal direction are diagonally oriented in a magnet block for the long stator. In another solution, an example embodiment of the invention provides that, in a magnet block for the levitation magnet of a magnetic levitation transport system, pole heads, with regard to their outer areas, which extend next to outer grooves, are provided in a varied and complementary manner in the direction of the grooves whereby the overall width of both outer areas along the grooves always corresponds to the width of a tooth between the grooves. An embodiment of the invention also relates to a method for producing this magnet block.

Abstract: Lubricants intended for solid surfaces, and particularly for skis, and comprising a partially fluorinated compound of formula 1 RF—(A)a—(O)b—(B)c—(D)d—(RF)e??(1) where RF is a perfluorinated radical of formula F(CF2)n-, n is a number from 1 to 20, A is C1-C30, preferably C1-C18, alkylene. B is arylene having 6 to 14 carbon atoms or is a saturated or unsaturated monocyclic or polycyclic hydrocarbon having 3 to 30, preferably 3 to 18 carbon atoms, D is hydrogen or C1-C30, preferably C1-C18, alkyl, a is zero or 1, b, c, and d are zero, 1 or 2 and e is zero or 1, with the proviso that b and c are not simultaneously zero.

Abstract: A long stator motor, particularly for driving a magnetic levitation transport system, includes a stator iron, inside of which grooves for accommodating cable windings are provided. At least two cable windings are placed one above the other by running at least two cables inside each groove.

Abstract: A laminated stator core for a linear motor, in particular for a magnetic levitation transportation system, includes stacked stamped sheet-metal laminates. At least some of the sheet-metal laminates are reliably electrically insulated from one another by an additional measure. By way of example, at least one sheet-metal laminate in the stack is oriented differently in that it has stamped burrs which are in the opposite direction to the stamped burrs on the other sheet-metal laminates. According to another example, an insulation plate is inserted at at least one position between the sheet-metal laminates.

Abstract: A method is for operating a vehicle of a magnetic levitation railway on a route which is fitted with a stator with a stator winding. There is provision for the time profile of the strength of the current to be measured in each provided supply phase of the stator winding. In addition, in the region of the respective supply phase on the route, the time profile of the magnetic flux of the magnetic leakage field emanating from the vehicle is measured. The force acting on the vehicle is then determined from current strength values, assigned magnetic fluxes and a motor constant of the vehicle. The force which is determined is compared with a threshold value and when the force deviates greatly the energy supply to the stator winding is interrupted.

Abstract: A method is for securing a laminated core, used to accommodate the stator winding of a linear motor, to a track. In particular, the track is for a magnetic levitation transport system. Provision is made for an installation module to be connected to the track and to have at least one pair of holes then aligned transversely with respect to the direction of travel in parallel, uncovered side walls. The laminated core, in which there is at least one channel, is then inserted into the installation module in a manner held by a clamping device until the at least one channel in the laminated core forms a continuous opening with the at least one pair of holes. A tube is then pushed into this opening and fixed there. The clamping device is then removed.

Abstract: A method for oxidation treatment of waste water material containing organic solid particles includes forming a discrete batch of waste water material, adjusting the pH of the entire batch to close to 7 or acid-alkaline neutral, and then flowing the batch through a reactor along with chlorine gas. The chlorine produces hypochlorous acid, which produces nascent oxygen and hypochlorite ions, for chemically oxidizing the organic solid particles and also forming minute gas bubbles, including nitrogen and carbon dioxide, which adhere to the particles. The treated material is flowed into a separation receptacle, where the gas bubble buoyed particles float to the surface of the water. The clear water is rapidly gravity-drained from beneath the particles, leaving the particles coalesced into a relatively dry, disinfected or stabilized sludge.