Patents by Inventor Ulrich Goebel
Ulrich Goebel 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).
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Publication number: 20200397965Abstract: The present invention relates to a method for combined administration of carbon monoxide (CO) to an ex-vivo fluid and monitoring of the carbon monoxide administration, said method comprising: (i) generating CO by reacting a CO releasing molecule (CORM) with a release triggering molecule; (ii) administering CO to an ex-vivo fluid by contacting the ex-vivo fluid with the CO generated in step (i) via a gas-permeable membrane; (iii) analyzing carbon monoxide and/or a carbon monoxide marker after administering in step (ii) CO to the ex-vivo fluid by complementary monitoring techniques; (iv) adjusting the CO administration based on the analysis of the carbon monoxide or the carbon monoxide marker carried out in step (iii), if necessary. It furthermore relates to an extracorporeal circuit system for use in the method of the invention.Type: ApplicationFiled: February 7, 2019Publication date: December 24, 2020Applicants: Julius-Maximilians-Universitaet Wuerzburg, Albert-Ludwigs-Universitaet FreiburgInventors: Jakob WOLLBORN, Ulrich GOEBEL, Martin SCHICK, Cornelius HERMANN, Christian WUNDER, Lorenz MEINEL, Christoph STEIGER, Benjamin MERGET
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Patent number: 9527036Abstract: The present invention relates to a catalyst system for treatment of diesel exhaust gas, comprising, in flow direction of the exhaust gas, a nitrogen oxide storage catalyst containing a nitrogen oxide storage component and noble metal and a diesel particulate filter containing noble metal selected from the group of platinum, palladium, and platinum and palladium, characterized in that the noble metal loading of the nitrogen oxide storage catalyst is 100 to 180 g/ft3 (3.53 to 6.36 g/L) and the noble metal loading of the diesel particulate filter is 5 to 35 g/ft3 (0.18 to 1.24 g/L).Type: GrantFiled: November 8, 2013Date of Patent: December 27, 2016Assignee: UMICORE AG & CO. KGInventors: Michael Schiffer, Ulrich Goebel, Franz Dornhaus, Anke Schuler, Ruediger Hoyer, Marcus Pfeifer, Gerald Jeske
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Publication number: 20150273394Abstract: The present invention relates to a catalyst system for treatment of diesel exhaust gas, comprising, in flow direction of the exhaust gas, a nitrogen oxide storage catalyst containing a nitrogen oxide storage component and noble metal and a diesel particulate filter containing noble metal selected from the group of platinum, palladium, and platinum and palladium, characterized in that the noble metal loading of the nitrogen oxide storage catalyst is 100 to 180 g/ft3 (153 to 6.36 g/L) and the noble metal loading of the diesel particulate filter is 5 to 35 g/ft3 (0.18 to 1.24 g/L.).Type: ApplicationFiled: November 8, 2013Publication date: October 1, 2015Applicant: UMICORE AG & CO. KGInventors: Michael Schiffer, Ulrich Goebel, Franz Dornhaus, Anke Schuler, Ruediger Hoyer, Marcus Pfeifer, Gerald Jeske
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Patent number: 8932546Abstract: A catalytically active particulate filter is proposed which is suitable for use in an exhaust gas cleaning system for diesel engines. The particulate filter removes diesel soot particles from the exhaust gas and is also effective to oxidize carbon monoxide and hydrocarbons and to convert nitrogen monoxide at least proportionally into nitrogen dioxide. The particulate filter comprises a filter body (3) and two catalytically active coatings (1) and (2) which contain platinum and palladium, or platinum or palladium respectively, wherein the platinum content of the second catalytically active coating (2) is higher than the platinum content of the first catalytically active coating (1).Type: GrantFiled: January 29, 2013Date of Patent: January 13, 2015Assignee: Umicore AG & Co. KGInventors: Stephanie Frantz, Ulrich Goebel, Franz Dornhaus, Michael Schiffer
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Patent number: 8383544Abstract: Nitrogen oxide storage catalysts are used to remove the nitrogen oxides present in the lean exhaust gas of lean-burn engines. As a result of the stress due to high temperatures in vehicle operation, they are subject to thermal aging processes which affect both the nitrogen oxide storage components and the noble metals present as catalytically active components. The present invention provides a process with which the catalytic activity of a nitrogen oxide storage catalyst which comprises, in addition to platinum as a catalytically active component, basic compounds of strontium and/or barium on a support material comprising cerium oxide, said catalytic activity being lost owing to the thermal aging process, can be at least partly restored. The two-stage process is based on the fact that strontium and/or barium compounds formed during the thermal aging with the support material, which also comprise platinum, are recycled to the catalytically active forms by controlled treatment with specific gas mixtures.Type: GrantFiled: April 16, 2008Date of Patent: February 26, 2013Assignee: Umicore AG & Co., KGInventors: Stephan Eckhoff, Meike Wittrock, Ulrich Goebel, Ina Grisstede, Ruediger Hoyer, Wilfried Mueller, Thomas Kreuzer, Maria Cristina Casapu, Jan-Dierk Grunwaldt, Marek Maciejewski, Aflons Baiker
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Patent number: 8341938Abstract: When a nitrogen oxide storage catalyst is being regenerated, the regeneration may be terminated for example as a result of a premature load change in the engine, which can lead to incomplete emptying of the storage catalyst. The residual filling level which remains in the catalyst following an incomplete regeneration of this nature is used as the starting value for calculation of the filling level during the next storage phase. After incomplete regeneration, the nitrogen oxide conversion rate is initially greater than would be expected, on account of the residual filling level. By taking this increased conversion rate into account when calculating the filling level during the storage phase, it is possible to further improve the accuracy of the calculation.Type: GrantFiled: June 15, 2010Date of Patent: January 1, 2013Assignee: Umicore AG & Co. KGInventors: Martin Votsmeier, Juliane Theis, Ulrich Goebel, Jürgen Gieshoff, Thomas Kreuzer
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Patent number: 8230674Abstract: Modern exhaust-gas purification systems in motor vehicles with a lean-burn engine include a starting catalyst fitted close to the engine and a main catalyst arranged in the underbody region, with both the starting catalyst and the main catalyst being formed by nitrogen oxide storage catalysts. The nitrogen oxide storage catalysts are in each case regenerated by the engine being briefly switched from lean-burn mode to rich-burn mode when the nitrogen oxide concentration in the exhaust gas downstream of the storage catalysts rises above a predetermined value. The starting catalyst is exposed to particularly high temperatures and is therefore prone to faster ageing of its nitrogen oxide storage capacity than the main catalyst.Type: GrantFiled: December 17, 2005Date of Patent: July 31, 2012Assignee: Umicore AG & Co. KGInventors: Stephan Bremm, Christian Manfred Tomanik, Ulrich Goebel, Wilfried Mueller, Thomas Kreuzer
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Publication number: 20110258982Abstract: Nitrogen oxide storage catalysts are used to remove the nitrogen oxides present in the lean exhaust gas of lean-burn engines. Storage catalysts are thermally aged by high temperatures. Ageing is due to sintering of the catalytically active noble metal components of the catalyst and to formation of compounds of the storage components with the support materials. According to the invention, the formation of compounds of the storage materials can be largely reversed by treatment of the storage material with a gas mixture containing carbon dioxide, optionally water vapor and optionally nitrogen oxides at temperatures in the range from 200° C. to 950° C., preferably from 300° C. to 700° C. The reactivation can be carried out under emission-neutral conditions directly in the vehicle during driving operation by setting of suitable exhaust gas conditions and regulating the air/fuel ratio.Type: ApplicationFiled: June 5, 2007Publication date: October 27, 2011Applicant: UMICORE AG & Co. KGInventors: Stephan Eckhoff, Meike Wittrock, Ulrich Goebel, Wilfried Mueller, Thomas Kreuzer
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Publication number: 20110182048Abstract: An electronic assembly has at least one conductor substrate carrying components, which conductor substrate is surrounded by a mechanical protection. The conductor substrate is encased using a molding compound as a mechanical protection and is contacted by at least one intrinsically stiff, spring-elastic electrical connection conductor, the connection conductor being embedded in the molding compound, at least in sections.Type: ApplicationFiled: June 16, 2009Publication date: July 28, 2011Inventors: Walter Roethlingshoefer, Ulrich Goebel
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Patent number: 7905087Abstract: Nitrogen oxide storage catalytic converters for purifying the exhaust gas of lean-burn engines are periodically regenerated by switching the engine from lean-burn mode to rich-burn mode. After regeneration has taken place, the engine is switched back to lean-burn mode. At this time, rich exhaust gas is still flowing in the exhaust line from the engine to the catalytic converter, which rich exhaust gas is ejected via the catalytic converter into the environment by the following, lean exhaust gas. This leads to brief emissions peaks of the rich exhaust gas constituents and impairs the level of exhaust gas cleaning which can be obtained. In order to solve said problem, it is proposed to create oxidizing conditions by injecting air upstream of the storage catalytic converter, so that the rich exhaust gas constituents still flowing in the exhaust line upstream of the storage catalytic converter can be converted at the storage catalytic converter to form non-harmful products.Type: GrantFiled: June 22, 2006Date of Patent: March 15, 2011Assignee: Umicore AG & Co. KGInventors: Ulrich Goebel, Stephan Bremm, Christian Manfred Tomanik, Wilfried Mueller, Thomas Kreuzer
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Publication number: 20100307136Abstract: When a nitrogen oxide storage catalyst is being regenerated, the regeneration may be terminated for example as a result of a premature load change in the engine, which can lead to incomplete emptying of the storage catalyst. The residual filling level which remains in the catalyst following an incomplete regeneration of this nature is used as the starting value for calculation of the filling level during the next storage phase. After incomplete regeneration, the nitrogen oxide conversion rate is initially greater than would be expected, on account of the residual filling level. By taking this increased conversion rate into account when calculating the filling level during the storage phase, it is possible to further improve the accuracy of the calculation.Type: ApplicationFiled: June 15, 2010Publication date: December 9, 2010Inventors: Martin VOTSMEIER, Juliane Kluge, Ulrich Goebel, Jürgen Gieshoff, Thomas Kreuzer
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Patent number: 7832201Abstract: To remove the nitrogen oxides from the exhaust gas from lean-burn engines, these engines are equipped with a nitrogen oxide storage catalyst, which has to be regenerated frequently by the engine being briefly switched to rich-burn mode. The regeneration is usually initiated when the nitrogen oxide concentration downstream of the catalyst rises above a permissible value. In this context, there is a risk of the bed temperature of the catalyst during and after regeneration being pushed into a range with incipient thermal desorption of the nitrogen oxides on account of the heat which is released during the conversion of the nitrogen oxides by the reducing constituents of the exhaust gas. This can lead to increased nitrogen oxide emission both during the regeneration itself and after the engine has been switched back to lean-burn mode.Type: GrantFiled: December 24, 2005Date of Patent: November 16, 2010Assignee: Umicore AG & Co. KGInventors: Stephan Bremm, Christian Manfred Tomanik, Ulrich Goebel, Wilfried Mueller, Thomas Kreuzer
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Patent number: 7735312Abstract: When a nitrogen oxide storage catalyst is being regenerated, the regeneration may be terminated for example as a result of a premature load change in the engine, which can lead to incomplete emptying of the storage catalyst. The residual filling level which remains in the catalyst following an incomplete regeneration of this nature is used as the starting value for calculation of the filling level during the next storage phase. After incomplete regeneration, the nitrogen oxide conversion rate is initially greater than would be expected, on account of the residual filling level. By taking this increased conversion rate into account when calculating the filling level during the storage phase, it is possible to further improve the accuracy of the calculation.Type: GrantFiled: February 4, 2005Date of Patent: June 15, 2010Assignee: Umicor AG & Co. KGInventors: Martin Votsmeier, Juliane Kluge, Ulrich Goebel, Jürgen Gieshoff, Thomas Kreuzer
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Patent number: 7670577Abstract: A nitrogen oxide storage catalytic converter which is operated for a relatively long time at low exhaust-gas temperatures in the range between 120 and 250° C. exhibits a decreasing storage capacity as a result of incomplete regeneration at said temperatures. In order to re-establish the original storage capacity of the catalytic converter which is operated in this way, two-stage regeneration is proposed, wherein the storage catalytic converter is initially partially regenerated at the low exhaust gas temperature by means of a switch from the lean mode to the rich mode, and wherein subsequently, with rich exhaust gas again, the exhaust-gas temperature of the engine is raised into a range of between 300 and 400° C. for complete regeneration.Type: GrantFiled: October 19, 2006Date of Patent: March 2, 2010Assignee: Umicore AG & Co. KGInventors: Friedemann Rohr, Lutz Marc Ruwisch, Markus Koegel, Juliane Kluge, Ulrich Goebel
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Publication number: 20100037597Abstract: An emission control system for the cleaning of the exhaust gases of a lean burn engine with two or more cylinders comprises a first exhaust leg for the exhaust gases of a first group of cylinders and a second exhaust leg for the exhaust gases of a second group of cylinders. A nitrogen oxide storage catalyst is arranged in each exhaust leg. The two exhaust legs are combined downstream of the storage catalysts at a confluence to form a common exhaust leg. The common exhaust leg contains an SCR catalyst. The first and second groups of cylinders are each supplied alternately in periodic intervals with lean and rich air/fuel mixtures. Lean or rich exhaust gases are thus obtained in the combustion in the cylinders and released into the corresponding exhaust legs. Lean and rich exhaust gases are adjusted with respect to one another so as to result in a lean exhaust gas after the combination of the exhaust gases in the common exhaust leg.Type: ApplicationFiled: December 21, 2007Publication date: February 18, 2010Inventors: Stephan Eckhoff, Ulrich Goebel, Susanne Philipp, Wilfried Mueller, Thomas Kreuzer
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Patent number: 7638452Abstract: Nitrogen oxide storage catalysts are used for removing the nitrogen oxides present in the lean-burn exhaust gas of lean-burn engines. Here, the purifying action is based on the nitrogen oxides being stored in the form of nitrates by the storage material of the storage catalyst during a lean-burn operating phase of the engine and the previously formed nitrates being decomposed in a subsequent rich-burn operating phase of the engine and the nitrogen oxides which are being liberated again being reacted with the reducing exhaust gas constituents over the storage catalyst to form nitrogen, carbon dioxide and water. Storage catalysts are thermally aged by high temperatures. The aging is due to sintering of the catalytically active noble metal components of the catalyst and to formation of compounds of the storage components with the support materials.Type: GrantFiled: July 15, 2006Date of Patent: December 29, 2009Assignee: Umicore AG & Co. KGInventors: Meike Wittrock, Ulrich Goebel, Thomas Kreuzer, Christina Maria Casapu, Jan-Dierk Grunwaldt, Marek Maciejewski, Alfons Baiker
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Publication number: 20090297415Abstract: A nitrogen oxide storage catalytic converter which is operated for a relatively long time at low exhaust-gas temperatures in the range between 120 and 250° C. exhibits a decreasing storage capacity as a result of incomplete regeneration at said temperatures. In order to re-establish the original storage capacity of the catalytic converter which is operated in this way, two-stage regeneration is proposed, wherein the storage catalytic converter is initially partially regenerated at the low exhaust gas temperature by means of a switch from the lean mode to the rich mode, and wherein subsequently, with rich exhaust gas again, the exhaust-gas temperature of the engine is raised into a range of between 300 and 400° C. for complete regeneration.Type: ApplicationFiled: October 19, 2006Publication date: December 3, 2009Applicant: UMICORE AG & CO. KGInventors: Friedemann Rohr, Lutz Marc Ruwisch, Markus Koegel, Juliane Kluge, Ulrich Goebel
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Publication number: 20090229249Abstract: Modern exhaust-gas purification systems in motor vehicles with a lean-burn engine include a starting catalyst fitted close to the engine and a main catalyst arranged in the underbody region, with both the starting catalyst and the main catalyst being formed by nitrogen oxide storage catalysts. The nitrogen oxide storage catalysts are in each case regenerated by the engine being briefly switched from lean-burn mode to rich-burn mode when the nitrogen oxide concentration in the exhaust gas downstream of the storage catalysts rises above a predetermined value. The starting catalyst is exposed to particularly high temperatures and is therefore prone to faster ageing of its nitrogen oxide storage capacity than the main catalyst.Type: ApplicationFiled: December 17, 2005Publication date: September 17, 2009Inventors: Stephan Bremm, Christian Manfred Tomanik, Ulrich Goebel, Wilfried Mueller, Thomas Kreuzer
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Publication number: 20090151329Abstract: To remove the nitrogen oxides from the exhaust gas from lean-burn engines, these engines are equipped with a nitrogen oxide storage catalyst, which has to be regenerated frequently by the engine being briefly switched to rich-burn mode. The regeneration is usually initiated when the nitrogen oxide concentration downstream of the catalyst rises above a permissible value. In this context, there is a risk of the bed temperature of the catalyst during and after regeneration being pushed into a range with incipient thermal desorption of the nitrogen oxides on account of the heat which is released during the conversion of the nitrogen oxides by the reducing constituents of the exhaust gas. This can lead to increased nitrogen oxide emission both during the regeneration itself and after the engine has been switched back to lean-burn mode.Type: ApplicationFiled: December 24, 2005Publication date: June 18, 2009Inventors: Stephan Bremm, Christian Manfred Tomanik, Ulrich Goebel, Wilfried Mueller, Thomas Kreuzer
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Publication number: 20090145112Abstract: Nitrogen oxide storage catalytic converters for purifying the exhaust gas of lean-burn engines are periodically regenerated by switching the engine from lean-burn mode to rich-burn mode. After regeneration has taken place, the engine is switched back to lean-burn mode. At this time, rich exhaust gas is still flowing in the exhaust line from the engine to the catalytic converter, which rich exhaust gas is ejected via the catalytic converter into the environment by the following, lean exhaust gas. This leads to brief emissions peaks of the rich exhaust gas constituents and impairs the level of exhaust gas cleaning which can be obtained. In order to solve said problem, it is proposed to create oxidizing conditions by injecting air upstream of the storage catalytic converter, so that the rich exhaust gas constituents still flowing in the exhaust line upstream of the storage catalytic converter can be converted at the storage catalytic converter to form non-harmful products.Type: ApplicationFiled: June 22, 2006Publication date: June 11, 2009Applicant: UMICORE AG & CO.KGInventors: Ulrich Goebel, Stephan Bremm, Christian Manfred Tomanik, Wilfried Mueller, Thomas Kreuzer