Patent application number | Description | Published |
20110098383 | Composite comprising nanosize powder and use of the composite - A composite is formed from at least one base material and at least one filler powder mixture dispersed in the base material. The filler powder mixture has a filler powder fraction and at least one further filler powder fraction. The filler powder fraction has an average powder particle diameter (D50) selected from the range from 1 μm to 100 μm and the total proportion of the filler powder mixture in the composite (degree of fill) is above 50% by weight. The further filler powder fraction has a further average powder particle diameter selected from the range from 1 nm to 50 nm and the proportion of the further filler powder fraction in the filler powder mixture is selected from the range from 0.1% by weight to 50% by weight. A high degree of fill can be achieved at a low viscosity in the presence of nanosize filler particles. The composite is particularly suitable as embedding composition (pourable resin system). | 04-28-2011 |
20130131218 | INSULATION FOR ROTATING ELECTRICAL MACHINES - A mica-based insulation based on impregnating resin for rotating electrical machines is provided. The mica-based impregnating resin includes an epoxy resin/anhydride mixture and a nanoparticulate filler, wherein the nanoparticulate filler is a nanoparticulate silicon dioxide and/or aluminum oxide modified by a silanizing reagent. Further, a method of producing the mica-based impregnating resin is provided. | 05-23-2013 |
20130157042 | ELECTRICALLY INSULATING MATERIAL, INSULATING PAPER, AND INSULATING TAPE FOR A HIGH VOLTAGE ROTARY MACHINE - An electrical insulation material for a high-voltage rotary machine includes a base resin and a filler powder distributed as the sole filler in the base resin, the powder being formed of disc-like particles of aluminum oxide. An insulation paper for a high-voltage rotary machine includes the electrical insulation material. An insulation tape for a high-voltage rotary machine includes a carrier strip and a strip of insulation paper that is applied and attached to the carrier strip. | 06-20-2013 |
20130180519 | HEAT TRANSFER MEDIUM, USE THEREOF, AND METHOD FOR OPERATING A SOLAR THERMAL POWER PLANT - A heat transfer medium is used in solar thermal power plants. The heat transfer medium can reversibly absorb and release water. The heat transfer medium releases water during heating and releases heat during re-absorption of the water. | 07-18-2013 |
20130269740 | THERMOELECTRIC GENERATOR - A thermoelectric generator utilizes the waste heat of exhaust gases having a temperature of less than 250° C., such as those resulting from the operation of power plants. In this case, partially conductive or semiconductive particles are used which are arranged in layers between hot and cold air channels and produce a usable current flow. | 10-17-2013 |
20130284970 | HEAT TRANSFER MEDIUM FOR SOLAR THERMAL SYSTEMS - A heat transfer medium for solar thermal systems, a solar salt, contains nitrate salts. By admixing Ba and/or Sr are added to Li—Na—K—NO | 10-31-2013 |
20140033708 | SOLAR THERMAL POWER PLANT AND METHOD FOR OPERATING A SOLAR THERMAL POWER PLANT - To operate solar thermal technology economically, a cheap heat transfer fluid is used. To either completely spare or significantly reduce the energy-intensive auxiliary heating at night, a water tank is simply installed in the plant without a threat to the environment. With the water tank, the salt HTF is thinned by adding water when the solar heating is not in operation. | 02-06-2014 |
20140060386 | METHOD FOR PRODUCING A POROUS PARTICLE COMPOSITE FOR AN ELECTRICAL INSULATING PAPER - A method is provided for producing an electrical insulation paper having a particle composite. The method involves mixing a dispersion of particles in platelet form, a carrier fluid and a functionalizing agent which is distributed in the carrier fluid and has a proportion by mass in the dispersion corresponding to a predetermined mass ratio based on the proportion by mass of the particles. The dispersion is sedimented, such that the particles in platelet form are arranged in essentially plane-parallel layers in the sediment. The carrier fluid is removed from the sediment. Energy is introduced into the sediment to overcome the activation energy of that chemical reaction of the functionalizing agent with the particles which forms the particle composite from the sediment with coupling of the particles via the functionalizing agent. The mass ratio is predetermined such that the particle composite has a porous structure. The insulation paper is thereby produced. | 03-06-2014 |
20140083592 | METHOD OF PRODUCING AN ELECTRICAL INSULATION SYSTEM FOR AN ELECTRIC MACHINE - A method for producing an electrical insulation system of a conductor of a winding head of an electric machine is provided. The method includes applying a porous main insulation paper to the conductor of the electrical machine; applying a porous overhang corona shielding paper to the main insulation paper, as a result of which an insulation blank of the insulation system is formed; impregnating the insulation blank with a base resin, wherein the overhang corona shielding paper and the main insulation paper have a porosity such that the insulation blank is impregnated by the base resin to form a homogeneous base resin matrix; and completing the insulation system by curing the base resin. | 03-27-2014 |
20140125192 | ROTOR END-BELL FOR ELECTRIC GENERATORS - A rotor end-bell ( | 05-08-2014 |
20140138008 | METHOD FOR PRODUCING A TAPE FOR AN ELECTRICAL INSULATION SYSTEM - A method for producing tape for an electrical insulation system, including the following steps: providing a porous insulation paper; providing a resin that has nano-scale particles suspended therein; saturating the insulation paper with the resin such that the resin and particles become dispersed in the insulation paper; and finishing the tape. | 05-22-2014 |
20140145123 | VOLTAGE-LIMITING COMPOSITION - A varistor, or voltage-limiting composition has a polymer matrix and a particulate filler containing a partially conductive material applied to an electrically non-conductive carrier material. The carrier material has a lower density than the partially conductive material, so that the settling rate of the filler in the polymer matrix is reduced. The voltage-limiting composition can therefore also be used as a lacquer or for prepreg materials. A body which acts as a varistor may be produced using a composition of this kind by a method that includes annealing. The varistor may be used for surge arresters, in particular in medium-voltage systems, low-voltage systems, cable connections and cable fasteners. | 05-29-2014 |
20140326481 | INSULATION SYSTEMS HAVING IMPROVED PARTIAL DISCHARGE RESISTANCE, AND METHOD FOR PRODUCING SAME - Disclosed are insulating electric conductors against partial discharge and a method for producing an insulation system having improved partial discharge resistance and such an insulation system. There is an erosion-inhibiting effect of adhesion promoters, such as organic silicon compounds, added to resin when admixing nano particulate fillers. Good results may be attributable to a type of particle wetting of the nano particles as a result of particle wetting with organosilanes. The admixture of adhesion promoters with the resin before the addition of the nano particulate filler provides considerable advantages. | 11-06-2014 |
20150041178 | MATERIAL FOR INSULATION SYSTEM, INSULATION SYSTEM, EXTERNAL CORONA SHIELD AND AN ELECTRIC MACHINE - High-voltage insulation systems are simplified and can have a thinner design by the use of an electrically conductive PTFE fabric, wherein the thermal conductivity is also improved. | 02-12-2015 |
20150042198 | TWO-LAYER HIGH-VOLTAGE INSULATION SYSTEM AND ELECTRICAL MACHINE - By using an electrically conductive PTFE fabric, high-voltage insulation systems are simplified and can be made thinner, also improving the thermal conductivity. The insulation material is in two layers, each with a hydrophobic and a hydrophobic region, and the hydrophobic regions of the layers are opposed. | 02-12-2015 |
20150065612 | ELECTRICAL INSULATION BODY FOR A HIGH-VOLTAGE ROTARY MACHINE AND METHOD FOR PRODUCING THE ELECTRICAL INSULATION BODY - An electrical insulation body for a high-voltage rotary machine is provided. The electrical insulation body has a synthetic resin which is produced by reacting an epoxy with a hardener, and to which a filler component comprising particles is added, wherein the mass fraction of chlorine in the epoxy is less than 100 ppm. | 03-05-2015 |