Patents by Inventor Matthias Übler
Matthias Übler has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 10424419Abstract: The present disclosure relates to insulation systems. The teachings thereof may be embodied in an insulation system for an electrical machine. For example, an insulation system may comprise: solid insulation materials; an impregnating resin having oxirane functionalities; a depot accelerator distributed throughout the solid insulation materials; and a catalyst for initiating hardening of the impregnating resin, wherein the catalyst is at least partly in gaseous form under hardening conditions.Type: GrantFiled: March 9, 2016Date of Patent: September 24, 2019Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Jürgen Huber, Dieter Schirm, Matthias Übler
-
Patent number: 10424985Abstract: The invention relates to a method for producing a rotor and/or a stator of a dynamoelectric rotary machine by means of the following steps: —producing pre-formed coils from an integral electrically conductive material or pre-insulated or coated electrically conductive wires, —fixing spacers to the pre-formed coil at predefinable intervals, —inserting the pre-formed coil, which is provided with spacers, into slots in a laminated core of a stator or rotor, —making contact with the individual pre-formed coils to form groups of coils and forming a winding system of a rotor and/or stator in accordance with a predefined circuit plan, —insulating the pre-formed coils or the winding system in the slots by complete encapsulation, in particular by complete vacuum encapsulation.Type: GrantFiled: July 8, 2014Date of Patent: September 24, 2019Assignee: Siemens AktiengesellschaftInventors: André Grübel, Bernhard Klaussner, Dieter Schirm, Matthias Übler
-
Publication number: 20190089217Abstract: Various embodiments may include a solid insulation material, e.g. in tape form, the use thereof in a vacuum impregnation process, and/or an insulation system produced therewith and also an electrical machine having the insulation system, for the medium- and high-voltage sector. Some examples include rotating electrical machines in the medium- and high-voltage sector and also semifinished products for electrical switchgear. The solid insulation material and the insulation system produced therewith are characterized in that it can be produced in an anhydride-free manner, wherein the curing catalyst is, for example, an adduct of a 1H-imidazole and/or 1H-imidazole derivative with a compound containing oxirane groups.Type: ApplicationFiled: February 8, 2017Publication date: March 21, 2019Applicant: Siemens AktiengesellschaftInventors: Jürgen Huber, Dieter Schirm, Matthias Übler
-
Publication number: 20190039121Abstract: The invention relates to a binder system for production of a slip, e.g., for a green casting core compact. The invention also relates to a component that has been produced by means of such a slip. The invention may be employable for relatively inexpensive production of complex metal blades in all kinds of gas turbines and propulsion turbines. According to an embodiment, the invention provides a novel binder system that combines short gel times at room temperature without solvent while retaining a high glass transition of 55 to 60° C. with shortened hardening periods.Type: ApplicationFiled: February 7, 2017Publication date: February 7, 2019Applicant: Siemens AktiengesellschaftInventors: Hermann Bödinger, Stefan Denneler, Matthias Übler
-
Publication number: 20180229292Abstract: The present disclosure relates slip techniques for lost casting cores. The teachings thereof may be embodied in methods for producing a slip for use in casting, e.g., for production of complex metal blades in gas turbines. Some embodiments may include methods for producing a slip comprising: mixing at least one inorganic constituent with at least one first binder; and forming a slip with the mixture. The first binder may include a mixture of at least one epoxy resin and at least one sterically hindered amine as hardener.Type: ApplicationFiled: September 23, 2015Publication date: August 16, 2018Applicant: Siemens AktiengesellschaftInventors: Hermann Boedinger, Stefan Denneler, Carsten Schuh, Matthias Uebler
-
Publication number: 20180215960Abstract: The present disclosure relates to insulation. Teachings thereof may be embodied in a solid insulation material, especially in tape form, the use thereof in a vacuum impregnation process and to an insulation system produced therewith, and also an electrical machine comprising the insulation system, especially for the medium- and high-voltage sector, namely for medium- and high-voltage machines, especially rotating electrical machines in the medium- and high-voltage sector, and to semifinished products for electrical switchgear. For example a solid insulation material with an anhydride-free impregnating agent may include: a carrier; a barrier material; a curing catalyst; and a tape adhesive. The curing catalyst and the tape adhesive are inert toward one another but react under the conditions of a vacuum impregnation process if combined with an anhydride-free impregnating agent having gelation times of 1 h to 15 h at impregnation temperature.Type: ApplicationFiled: May 19, 2016Publication date: August 2, 2018Applicant: Siemens AktiengesellschaftInventors: Jürgen Huber, Dieter Schirm, Matthias Übler
-
Publication number: 20180204650Abstract: The invention relates to a solid, in particular strip-shaped insulation material, to the use thereof in a vacuum impregnation method and a thus produced insulation system and to an electric machine using the insulation system, in particular for the medium and high voltage range, that is for medium and high voltage machines, in particular rotating electric machines in the medium and high voltage range and to semi-finished products for electric switching systems. According to the invention, the curing catalyst is a covalently-bridged di-imidazol derivative and/or a covalently-bridged di-pyrazol derivative.Type: ApplicationFiled: May 20, 2016Publication date: July 19, 2018Applicant: Siemens AktiengesellschaftInventors: Jürgen Huber, Dieter Schirm, Matthias Übler
-
Publication number: 20180204649Abstract: The present disclosure relates to insulation. Various embodiments thereof may include a solid insulation material and/or a formulation for production of an insulation system. For example, a formulation for an impregnating agent may include: an impregnating resin comprising a cycloaliphatic epoxy resin having a viscosity of less than 1500 mPas at impregnation temperature; and a curing catalyst deposited in the solid insulation material. The curing catalyst may be reactive toward the cycloaliphatic epoxy groups of the cycloaliphatic epoxy resin in the formulation of the impregnating agent but be sufficiently reactively inert with respect to the functional groups of the tape adhesive likewise present in the solid insulation material to confer storage stability to the solid insulation material.Type: ApplicationFiled: May 19, 2016Publication date: July 19, 2018Applicant: Siemens AktiengesellschaftInventors: Jürgen Huber, Dieter Schirm, Matthias Übler
-
Publication number: 20180094177Abstract: Tape adhesives suitable for impregnating processes for insulation systems are described. Embodiments of the tape adhesives include solid insulation material such as mica, anhydride-free impregnating resins and accelerators for the anhydride-free impregnating resins. The tape adhesives may be adjusted with respect to the reactivity of the accelerators for the anhydride-free impregnating resins in relation for the storage stability of the overall insulation systems.Type: ApplicationFiled: March 15, 2016Publication date: April 5, 2018Applicant: Siemens AktiengesellschaftInventors: Juergen Huber, Irene Olbrich, Dieter Schirm, Matthias Uebler
-
Publication number: 20180053581Abstract: The present disclosure relates to insulation systems. The teachings thereof may be embodied in an insulation system for an electrical machine. For example, an insulation system may comprise: solid insulation materials; an impregnating resin having oxirane functionalities; a depot accelerator distributed throughout the solid insulation materials; and a catalyst for initiating hardening of the impregnating resin, wherein the catalyst is at least partly in gaseous form under hardening conditions.Type: ApplicationFiled: March 9, 2016Publication date: February 22, 2018Applicant: Siemens AktiengesellschaftInventors: Juergen Huber, Dieter Schirm, Matthias Uebler
-
Publication number: 20180022897Abstract: An insulating tape having a tape adhesive comprising at least one tape accelerator. The tape accelerator may be comprised of an imidazole, an imidazole derivative, a pyrazole, a pyrazole derivative, and combinations thereof. The tape is particularly useful for insulation for stator coils of electrical machines.Type: ApplicationFiled: January 19, 2016Publication date: January 25, 2018Applicant: Siemens AktiengesellschaftInventors: Juergen HUBER, Dieter SCHIRM, Matthias UEBLER
-
Publication number: 20170310184Abstract: The present disclosure relates to electrical machines. The teachings thereof may be embodied in insulation systems for electrical machines, more particularly in the high-voltage range, for example, in an insulation system for electrical machines including: an insulator comprising a porous insulating material; an impregnator comprising a catalytically or thermally curable resin material having oxirane functionalities, or a mixture of different reactive resin materials having oxirane functionalities; and at least one thermally activatable or encapsulated hardener material.Type: ApplicationFiled: September 7, 2015Publication date: October 26, 2017Applicant: Siemens AktiengesellschaftInventors: Juergen Huber, Bernhard Klaussner, Dieter Schirm, Matthias Uebler
-
Publication number: 20170301429Abstract: The present disclosure relates to insulation systems. Embodiments thereof may include a formulation for an insulation system used as casting resin and/or pressing resin as conductor and/or wall insulation for current-carrying conductors in generators, motors, and/or rotating machines. Some embodiments may include a material for use in an insulation system including: a base resin having one or more isotropic spherical filler fractions; wherein one of the one or more filler fractions comprises nanofiller particles comprising inorganic-organic particles; wherein both an inorganic fraction and an organic fraction are always simultaneously present; and the nanofiller particles comprise up to 25% by weight in the material.Type: ApplicationFiled: September 22, 2015Publication date: October 19, 2017Applicant: Siemens AktiengesellschaftInventors: Peter Groeppel, Daniel Mach, Michael Nagel, Gerhard Piecha, Christian Triebel, Matthias Uebler
-
Publication number: 20170282401Abstract: The present disclosure relates to casting cores. The teachings thereof may be embodied in methods for producing a slip and components produced using such methods. For example, a method for producing a slip may include: mixing at least one inorganic constituent with at least one binder, wherein the binder comprises at least one epoxy resin and at least one silicone copolymer.Type: ApplicationFiled: September 18, 2015Publication date: October 5, 2017Applicant: Siemens AktiengesellschaftInventors: Hermann Boedinger, Stefan Denneler, Carsten Schuh, Matthias Uebler
-
Patent number: 9765759Abstract: 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.Type: GrantFiled: April 19, 2012Date of Patent: September 19, 2017Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Peter Gröppel, Pascal Heilmann, Christian Müller-Elvers, Peter Mürau, Matthias Übler
-
Publication number: 20170240787Abstract: A latent energy store based on a change in the aggregate state of a storage medium is provided Energy can be stored in the storage medium as a melting enthalpy or as a crystallization enthalpy and the latent heat accumulator may be operated at temperatures of between 150° C. and 450° C. The storage medium may be or include an acetate of a metal and/or non-metal having a melting point in the range between 150° C. and 500° C.Type: ApplicationFiled: September 21, 2015Publication date: August 24, 2017Applicant: Siemens AktiengesellschaftInventors: Matthias Uebler, Ludwig Baer
-
Publication number: 20170240693Abstract: An impregnating resin, e.g., a catalytically hardenable impregnating resin for the conductor of an electrical machine, may include at least one reactive resin mixed with at least one reactive diluent and a hardening catalyst, e.g., for cationic, anionic or coordinate polymerization of the impregnating resin. The properties of the impregnating resin or use thereof may be improved by virtue of the reactive diluent containing a heterocyclic four-membered ring. The impregnating resin may be part of a main insulation of a conductor arrangement, which may in turn be installed in an electrical coil or other electrical machine.Type: ApplicationFiled: October 19, 2015Publication date: August 24, 2017Applicant: Siemens AktiengesellschaftInventors: Jürgen HUBER, Bernhard KLAUSSNER, Dieter SCHIRM, Matthias ÜBLER
-
Publication number: 20170158931Abstract: A mixture of inorganic nitrate salts may include sodium nitrate and potassium nitrate in certain proportions which can be used both for the storage of thermal energy and as heat transfer fluid, for example within concentrated solar power (CSP) plants. Such mixture may be used, for example, in thermodynamic solar systems with point-focusing, receiver-type power towers using heliostat mirror geometries on-ground. As another example, the disclosed mixture may be used as heat transfer fluid in a number of applications for industrial processes involving heat exchanges in a wide range of temperatures. One example mixture is an anhydrous, binary salt mixture, comprising potassium nitrate KNO3 and sodium nitrate NaNO3 wherein the KNO3 content ranges from 60% by weight to 75% by weight, e.g., from 63% by weight to 70% by weight, e.g., from 65% by weight to 68% by weight.Type: ApplicationFiled: May 20, 2015Publication date: June 8, 2017Applicant: Siemens AktiengesellschaftInventors: Pascal Heilmann, Edwin Roovers, Steven de Wispelaere, Matthias Uebler
-
Publication number: 20170051984Abstract: A method for producing a latent heat accumulator may include filling a can body with a phase-change material in the liquid or solid aggregate state, and closing the can body filled with said solid or liquid phase-change material by flanging such that fluid cannot pass through.Type: ApplicationFiled: April 17, 2015Publication date: February 23, 2017Applicant: Siemens AktiengesellschaftInventors: Ludwig Baer, Vladimir Danov, Stephan Ippisch, Dieter Most, Jochen Schaefer, Manfred Wohlfart, Matthias Uebler
-
Patent number: 9506671Abstract: 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.Type: GrantFiled: September 1, 2011Date of Patent: November 29, 2016Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Peter Gröppel, Pascal Heilmann, Matthias Übler