Abstract: The disclosure relates to a gradient coil unit comprising a hollow cylindrical primary coil longitudinally surrounding a cylinder axis and designed to generate a magnetic field gradient in a first spatial direction, which primary coil comprises two primary conductor pattern pairs. Each primary conductor pattern pair of the two primary conductor pattern pairs is separately drivable, spans one half of the primary coil in each case, and comprises two spiral conductor patterns, which are formed by an electrical conductor implemented as a hollow conductor.

Abstract: A lubrication system for a power transmission device includes a variable displacement vane pump including a moveable control ring for varying the displacement of the pump. A linear actuator directly acts on the control ring for moving the control ring between maximum and minimum pump displacement positions. The linear actuator includes an electric motor for rotating a drive member. The drive member engages a driven actuator shaft to cause linear translation of the actuator shaft in response to rotation of the drive member. A control system includes a controller for signaling the actuator to extend or retract the actuator shaft to vary the pump displacement.

Abstract: The invention relates to a method and device for detecting flaws in a continuously produced float glass band by checking a glass strip, which extends perpendicularly to the conveying direction and which is observed in transmitted light. The device has the following characteristics: a) the flow of a float glass band is monitored without any gaps by a modularly constructed fastening bridge, scanning sensors fastened to the fastening bridge and two transmission lighting means arranged perpendicular to the glass band, b) each scanning sensor can be oriented by an adjusting apparatus according to the three spatial coordinates in positive and negative directions and can be finely adjusted by a target apparatus that can be pivoted in, in the form of an artificial measurement plane, and c) the lighting means are cooled by a cooling apparatus.

Abstract: A fluid pumping system for a power transmission device includes a variable displacement vane pump having a housing containing a rotor, a plurality of vanes coupled to the rotor and a linearly translatable slide for varying the displacement of the pump. A control system varies the displacement of the pump and provides a fluid output pressure selected from a continuously variable range of output pressures which are independent from the operating speed of the pump. The control system includes a linear actuator for moving the slide between minimum and maximum pump displacement positions. The linear actuator includes an electric stepper motor for bi-directionally translating an actuator shaft acting on the slide.

Abstract: The invention concerns a method for producing a substance during which an aluminum base alloy is produced that has a content of 5.5 to 13.0% by mass of silicon and a content of magnesium according to formula Mg [% by mass]=1.73×Si [% by mass]+m with m=1.5 to 6.0% by mass of magnesium, and has a copper content ranging from 1.0 to 4.0% by mass. The base alloy is then subjected to at least one hot working and, afterwards, to a heat treatment consisting of solution annealing, quenching and artificial aging. The magnesium is added based on the respectively desired silicon content according to the aforementioned formula. The material obtained by using the inventive method comprises having a low density and a high strength.

Abstract: A lubrication system for a power transmission device includes a variable displacement vane pump including a moveable control ring for varying the displacement of the pump. A linear actuator directly acts on the control ring for moving the control ring between maximum and minimum pump displacement positions. The linear actuator includes an electric motor for rotating a drive member. The drive member engages a driven actuator shaft to cause linear translation of the actuator shaft in response to rotation of the drive member. A control system includes a controller for signaling the actuator to extend or retract the actuator shaft to vary the pump displacement.

Abstract: The invention relates to an aluminium-based alloy comprising the following weight percent of constituents: between approximately 15% and 30% silicon, at least 1% nickel, in addition to at least one of the two constituents iron or titanium, the sum of the fractions of nickel, iron and titanium totalling at least 3%. The invention also relates to a moulded part consisting of said alloy.

Abstract: A method for integrating power monitoring capabilities with passive demultiplexing operations, utilizing the high-order diffraction from an optical diffraction grating. The technique helps avoid insertion loss and polarization dependent loss penalties, and device size penalties, typically incurred with optical taps and multiple diffraction gratings. The technique can also be modified slightly to provide information on channel wavelength and optical signal-to-noise-ratio, as well as channel power.

Abstract: The invention relates to a combination of individually pre-fabricated cylinder linings consisting of a light metal alloy with inlaid hard phases for casting into a cylinder block of an internal combustion engine. In said combination, a plurality of cylinder linings (2,3,4) are joined in a row by means of a non-positive and/or positive engagement, the distance between the axes of the cylinder linings corresponding to the cylinder bore center distance of the cylinder block.

Abstract: A method for producing a cast combination of cylindrical hollow profiles and for casting said combination into a cylinder block or crank housing of an internal combustion engine, wherein cylindrical hollow profiles consisting of a light-metal alloy and containing inlaid hard phases that have been manufactured by successive stages of spray compacting, hot extrusion and hot forming are arranged in a row, the distance between the axes of the hollow profiles corresponding to the cylinder bore center distance of the cylinder block and a light-metal alloy without inlaid hard phases is cast around said profiles. The cast combination is then positioned in a mould that forms the cylinder block and a light-metal material is cast around said combination.

Abstract: A method for integrating power monitoring capabilities with passive demultiplexing operations, utilizing the high-order diffraction from an optical diffraction grating. The technique helps avoid insertion loss and polarization dependent loss penalties, and device size penalties, typically incurred with optical taps and multiple diffraction gratings. The technique can also be modified slightly to provide information on channel wavelength and optical signal-to-noise-ratio, as well as channel power.

Abstract: An aluminium base alloy for production of casting alloys with magnesium as the most essential alloy element contains at least 50% scrap metal on primary aluminium base and as the remainder primary aluminium and/or scrap metal on secondary aluminium base of known composition. For production of the aluminium base alloy mainly foodstuff and animal feed packings are used, separated with a pyrolysis process and then the aluminium contained in the packing recycled by melting. The casting alloys produced from the aluminium base alloy are suitable in particular for production of heat-resistant and/or corrosion-resistant parts in the engine area, in particular for production of engine blocks, cylinder heads and oil sumps, by means of sand casting, chilled casting, diecasting, thixocasting or thixoforging.

Abstract: The invention relates to a device for filtering and adding grain refining materials to metal melts with a first filter (10) and a feed for a grain-refining material, where the first filter has a porous filter medium. The filter efficiency of the first filter (10) is substantially improved according to the invention by arranging the feed for the grain-refining material in the direction of flow after the first filter (10). The undissolved impurities introduced via the grain-refining material are removed by positioning a second filter (16) in the direction of flow after the feed for the grain-refining material.

Abstract: An aluminum casting alloy contains 0.5 to 2.0 w. % magnesium max. 0.15 w. % silicon 0.5 to 2.0 w. % manganese max. 0.7 w. % iron max. 0.1 w. % copper max. 0.1 w. % zinc max. 0.2 w. % titanium 0.1 to 0.6 w. % cobalt max. 0.8 w. % cerium 0.5 to 0.5 w. % zirconium max. 1.1 w. % chromium max. 1.1 w. % nickel 0.005 to 0.15 w. % vanadium max. 0.5 w. % hafnium and aluminum as the remainder with further contaminants individually at 0.05 w. %, total max. 0.02 w. %. The aluminum casting alloy is particularly suitable for diecasting and thixocasting or thixoforging. One particular application is diecasting for components with high requirements for mechanical properties as these are already present in the casting state and thus no further heat treatment is required.

Abstract: An aluminum casting alloy contains 1 0.5 to 2.0 w. % magnesium max. 0.15 w. % silicon 0.5 to 2.0 w. % manganese max. 0.7 w. % iron max. 0.1 w. % copper max. 0.1 w. % zinc max. 0.2 w. % titanium 0.1 to 0.6 w. % cobalt max. 0.8 w. % cerium 0.05 to 0.5 w. % zirconium max. 1.1 w. % chromium max. 1.1 w. % nickel 0.005 to 0.15 w. % vanadium max. 0.5 w.

Abstract: An aluminium base alloy for production of casting alloys with magnesium as the most essential alloy element contains at least 50% scrap metal on primary aluminium base and as the remainder primary aluminium and/or scrap metal on secondary aluminium base of known composition. For production of the aluminium base alloy mainly foodstuff and animal feed packings are used, separated with a pyrolysis process and then the aluminium contained in the packing recycled by melting. The casting alloys produced from the aluminium base alloy are suitable in particular for production of heat-resistant and/or corrosion-resistant parts in the engine area, in particular for production of engine blocks, cylinder heads and oil sumps, by means of sand casting, chilled casting, diecasting, thixocasting or thixoforging.

Abstract: An optical device incorporating a grating structure and method of producing same. The grating structure is composed of higher and lower refractive index regions which are positioned periodically with period P, wherein at least one of an amplitude, a phase, and a spatial frequency of the grating structure varies periodically with period L, and wherein at least one of the period L and the period P is chirped continuously over substantially the full extend of the grating structure.

Abstract: In a method for removing tin from a surface and/or from a region close to the surface of a component part, the component part has a concentrated aqueous sodium hydroxide or concentrated hydrochloric acid flowing in contact with it at a temperature which is distinctly higher than room temperature. Preferably, the temperature is approximately 220.degree. C., and the component part is moreover subjected to a positive pressure of 5.5 bar. The method is suitable for a component part fabricated through the use of unidirectional solidification and liquid-metal cooling, in particular a turbine blade.