Abstract: Presented is an underwater power plant including a support structure, a nacelle, the support structure and the nacelle being detachably connectable to one another via a coupling device, a water turbine, the water turbine at least indirectly drives an electrical generator that is received in the nacelle, and an inductive transmission device, where inductive transmission device transmits power generated by the electrical generator from the nacelle in a contactless manner to the support structure, and where the inductive transmission device includes a transformer with a primary side and a secondary side, the primary side is assigned to the nacelle and the secondary side is assigned to the support structure.

Abstract: The invention concerns a method for the operation of an underwater power plant with a water turbine to take up kinetic energy from a surrounding flow; and an electrical generator coupled directly to the water turbine; characterized in that the power regulation in the generator mode is done by a control or regulation of the load moment produced by the electrical generator for a freely adjusting rpm speed of the water turbine, wherein the setpoint value of the load moment in a first, power-optimized operating range is established by a state controller and/or a search mechanism for the power maximum; and in a second, power-limited operating range the assigned load moment is chosen so that an operating point distant from the power optimum results for the water turbine.

Abstract: A method for operating a wave power plant, where the method supplying, using a electrical generator, electrical power to a power grid, which is averaged over a plurality of flow oscillation periods using a generator side converter, a direct current link and a network side converter, where an electrical energy storage is connected to the direct current link using a DC converter, and maintaining the voltage value of the direct current link between a lower limiting voltage and an upper limiting voltage by at least one of a closed-loop and an open-loop control of a power input and a power output, wherein an air turbine is speed guided, depending on a variable, which characterises the flow in at least one of the flow channel and the pressure in the wave chamber, wherein the rotational speed is guided continuously during a flow oscillation period.

Abstract: The invention concerns a method for the operation of an underwater powerplant comprising a water turbine for purposes of absorbing kinetic energy from a flow of water; an electrical generator with converter feed, whose generator rotor is connected in a torsionally rigid manner with the water turbine, wherein the invention is characterised in that in normal operation a first frequency converter is used for purposes of converter feed, and in the braking operation at least one second frequency converter, or one component of a second frequency converter, is connected into the circuit and synchronised with the first frequency converter, in order to execute with the latter in a combined manner a converter feed to the electrical generator, which generates a generator torque braking the water turbine.

Abstract: The invention relates to an underwater powerplant, comprising a support structure; a nacelle, the support structure and the nacelle being detachably connectable to one another via a coupling device; a water turbine, which at least indirectly drives an electrical generator, which is received in the nacelle; characterized in that the underwater powerplant further comprises an inductive transmission device, which transmits the power generated by the electrical generator from the nacelle in a contactless manner to the support structure.

Abstract: The invention concerns a method for operating a wave power station comrising a wave chamber, which communicates with a flow channel leading to the exterior, wherein an oscillating air current is generated by the wave movement inside the wave chamber; an air turbine rotating in a single direction for an incident airflow coming from opposite directions, wherein said turbine is arranged in the flow channel and drives at least indirectly an electrical generator.

Abstract: The invention concerns a method for the operation of an underwater power plant with a water turbine to take up kinetic energy from a surrounding flow; and an electrical generator coupled directly to the water turbine; characterized in that the power regulation in the generator mode is done by a control or regulation of the load moment produced by the electrical generator for a freely adjusting rpm speed of the water turbine, wherein the setpoint value of the load moment in a first, power-optimized operating range is established by a state controller and/or a search mechanism for the power maximum; and in a second, power-limited operating range the assigned load moment is chosen so that an operating point distant from the power optimum results for the water turbine.

Abstract: A method of forming an assembly from a plurality of components, the plurality of components each having a component volume and a respective locus point, is described. The method includes selecting a target volume by defining a target volume and respective locus point. The method further includes determining a solution group of components comprising a list of components having a component volume positioned at least one of within the target volume and a predetermined distance from the target volume. The method further includes displaying the solution group of components forming an assembly.

Abstract: In an internal combustion engine for a motor vehicle having a support for supporting the internal combustion engine and a system for routing fresh gas and exhaust gas to and from the engine, a mixing valve of an exhaust gas recirculation system is integrated in the support of the engine.

Abstract: In an internal combustion engine for a motor vehicle having a support for supporting the internal combustion engine and a system for routing fresh gas and exhaust gas to and from the engine, a mixing valve of an exhaust gas recirculation system is integrated in the support of the engine.

Abstract: The present invention relates to a process for the production of titanium dioxide pigments and the use thereof.

Abstract: A process for calcining a filter cake in a directly heated rotary kiln wherein part of the filter cake is separated from the entire mass of filter cake, the separated portion is predried and recombined with the remainder portion and the combined predried and remainder portion is calcined. The filter cake can be inorganic solids such as oxides of titanium, chromium (III), zinc and iron.

Abstract: A process for micronizing solid matters in a jet mill, wherein the solid matters are brought into the jet mill across an injector and wherein the micronization takes place, if necessary, in the presence of milling aids and/or dispersing agents, wherein the solid matters are forcibly supplied to the injector and an apparatus for carrying out the process, the apparatus comprising a dosing means, a forcible entry means, and injector and a jet mill.

Abstract: A process for micronizing solid matters in a jet mill, wherein the solid matters are brought into the jet mill across an injector and wherein the micronization takes place, if necessary, in the presence of milling aids and/or dispersing agents, wherein the solid matters are forcibly supplied to the injector and an apparatus for carrying out the process, the apparatus comprising a dosing means, a forcible entry means, and injector and a jet mill.