Patents by Inventor Arno Nolte
Arno Nolte 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: 20150226100Abstract: An exhaust gas aftertreatment installment and associated exhaust gas aftertreatment method utilizes a nitrogen oxide storage catalytic converter and an SCR catalytic converter. A particulate filter is provided upstream of the nitrogen oxide storage catalytic converter or between the latter and the SCR catalytic converter or downstream of the SCR catalytic converter. The time of regeneration operating phases of the nitrogen oxide storage catalytic converter can be determined as a function of the nitrogen oxide content of the exhaust gas downstream of the nitrogen oxide storage catalytic converter or of the SCR catalytic converter and/or as a function of the ammonia loading of the latter. Moreover, a desired ammonia generation quantity can be determined for a respective regeneration operating phase. The installation and method are adopted for use for motor vehicle internal combustion engines and other engines which are operated predominantly in lean-burn mode.Type: ApplicationFiled: April 24, 2015Publication date: August 13, 2015Inventors: Brigitte BANDL-KONRAD, Andreas HERTZBERG, Bernd KRUTZSCH, Arno NOLTE, Markus PAULE, Stefan RENFFTLEN, Norbert WALDBUESSER, Michel WEIBEL, Guenther WENNINGER, Rolf WUNSCH
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Patent number: 9057307Abstract: An exhaust gas aftertreatment installment and associated exhaust gas aftertreatment method utilizes a nitrogen oxide storage catalytic converter and an SCR catalytic converter. A particulate filter is provided upstream of the nitrogen oxide storage catalytic converter or between the latter and the SCR catalytic converter or downstream of the SCR catalytic converter. The time of regeneration operating phases of the nitrogen oxide storage catalytic converter can be determined as a function of the nitrogen oxide content of the exhaust gas downstream of the nitrogen oxide storage catalytic converter or of the SCR catalytic converter and/or as a function of the ammonia loading of the latter. Moreover, a desired ammonia generation quantity can be determined for a respective regeneration operating phase. The installation and method are adopted for use for motor vehicle internal combustion engines and other engines which are operated predominantly in lean-burn mode.Type: GrantFiled: September 14, 2012Date of Patent: June 16, 2015Assignee: Daimler AGInventors: Brigitte Bandl-Konrad, Andreas Hertzberg, Bernd Krutzsch, Arno Nolte, Markus Paule, Stefan Renfftlen, Norbert Waldbuesser, Michel Weibel, Guenter Wenninger, Rolf Wunsch
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Publication number: 20130011313Abstract: An exhaust gas aftertreatment installment and associated exhaust gas aftertreatment method utilizes a nitrogen oxide storage catalytic converter and an SCR catalytic converter. A particulate filter is provided upstream of the nitrogen oxide storage catalytic converter or between the latter and the SCR catalytic converter or downstream of the SCR catalytic converter. The time of regeneration operating phases of the nitrogen oxide storage catalytic converter can be determined as a function of the nitrogen oxide content of the exhaust gas downstream of the nitrogen oxide storage catalytic converter or of the SCR catalytic converter and/or as a function of the ammonia loading of the latter. Moreover, a desired ammonia generation quantity can be determined for a respective regeneration operating phase. The installation and method are adopted for use for motor vehicle internal combustion engines and other engines which are operated predominantly in lean-burn mode.Type: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Applicant: Daimier AGInventors: Brigitte BANDL-KONRAD, Andreas HERTZBERG, Bernd KRUTZSCH, Arno NOLTE, Markus PAULE, Stefan RENFFTLEN, Norbert WALDBUESSER, Michael WEIBEL, Gunter WENNINGER, Rolf WUNSCH
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Patent number: 8297046Abstract: An exhaust gas aftertreatment installment and associated exhaust gas aftertreatment method utilizes a nitrogen oxide storage catalytic converter and an SCR catalytic converter. A particulate filter is provided upstream of the nitrogen oxide storage catalytic converter or between the latter and the SCR catalytic converter or downstream of the SCR catalytic converter. The time of regeneration operating phases of the nitrogen oxide storage catalytic converter can be determined as a function of the nitrogen oxide content of the exhaust gas downstream of the nitrogen oxide storage catalytic converter or of the SCR catalytic converter and/or as a function of the ammonia loading of the latter. Moreover, a desired ammonia generation quantity can be determined for a respective regeneration operating phase. The installation and method are adopted for use for motor vehicle internal combustion engines and other engines which are operated predominantly in lean-burn mode.Type: GrantFiled: September 9, 2010Date of Patent: October 30, 2012Assignee: Daimler AGInventors: Brigitte Bandl-Konrad, Andreas Hertzberg, Bernd Krutzsch, Arno Nolte, Markus Paule, Stefan Renfftlen, Norbert Waldbuesser, Michel Weibel, Guenter Wenninger, Rolf Wunsch
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Publication number: 20110005204Abstract: An exhaust gas aftertreatment installment and associated exhaust gas aftertreatment method utilizes a nitrogen oxide storage catalytic converter and an SCR catalytic converter. A particulate filter is provided upstream of the nitrogen oxide storage catalytic converter or between the latter and the SCR catalytic converter or downstream of the SCR catalytic converter. The time of regeneration operating phases of the nitrogen oxide storage catalytic converter can be determined as a function of the nitrogen oxide content of the exhaust gas downstream of the nitrogen oxide storage catalytic converter or of the SCR catalytic converter and/or as a function of the ammonia loading of the latter. Moreover, a desired ammonia generation quantity can be determined for a respective regeneration operating phase. The installation and method are adopted for use for motor vehicle internal combustion engines and other engines which are operated predominantly in lean-burn mode.Type: ApplicationFiled: September 9, 2010Publication date: January 13, 2011Applicant: Daimler AGInventors: Brigitte Bandl-Konrad, Andreas Hertzberg, Bernd Krutzsch, Arno Nolte, Markus Paule, Stefan Renfftlen, Norbert Waldbuesser, Michel Weibel, Guenter Wenninger, Rolf Wunsch
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Patent number: 7814747Abstract: An exhaust gas aftertreatment installment and associated exhaust gas aftertreatment method utilizes a nitrogen oxide storage catalytic converter and an SCR catalytic converter. A particulate filter is provided upstream of the nitrogen oxide storage catalytic converter or between the latter and the SCR catalytic converter or downstream of the SCR catalytic converter. The time of regeneration operating phases of the nitrogen oxide storage catalytic converter can be determined as a function of the nitrogen oxide content of the exhaust gas downstream of the nitrogen oxide storage catalytic converter or of the SCR catalytic converter and/or as a function of the ammonia loading of the latter. Moreover, a desired ammonia generation quantity can be determined for a respective regeneration operating phase. The installation and method are adopted for use for motor vehicle internal combustion engines and other engines which are operated predominantly in lean-burn mode.Type: GrantFiled: March 23, 2007Date of Patent: October 19, 2010Assignee: Daimler AGInventors: Brigitte Bandl-Konrad, Andreas Hertzberg, Bernd Krutzsch, Arno Nolte, Markus Paule, Stefan Renfftlen, Norbert Waldbuesser, Michel Weibel, Guenter Wenninger, Rolf Wunsch
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Patent number: 7765797Abstract: An exhaust gas purification system for a motor vehicle having a reducing agent storage tank, and an associated operating method. In particular, an exhaust gas purification system for a motor vehicle, for which predetermined maintenance intervals is provided. The system includes a reducing agent storage tank for storing a reducing agent intended for exhaust gas purification. A method for operating a motor vehicle having an exhaust gas purification system and a reducing agent storage tank for storing a reducing agent intended for the exhaust gas purification, which comprises predetermined maintenance work after predetermined maintenance intervals is also provided.Type: GrantFiled: November 27, 2004Date of Patent: August 3, 2010Assignee: Daimler AGInventors: Frank Duvinage, Christian Goerigk, Berthold Keppeler, Arno Nolte, Markus Paule, Joachim Schommers
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Patent number: 7662197Abstract: In a method for operating an exhaust-gas cleaning unit of a diesel engine including a particle filter and a nitrogen oxide storage device arranged upstream of the particle filter, wherein sulfur regeneration of the nitrogen oxide storage device is performed periodically at raised exhaust gas temperatures and, in certain phases, with a rich exhaust gas composition, and also soot regeneration of the particle filter is performed at raised exhaust gas temperatures with a lean exhaust gas composition, at least some of the sulfur regeneration and the soot regeneration phases are performed in a combined soot and sulfur regeneration phase, and for the sulfur regeneration, at least temporarily, a rich exhaust-gas composition with a temperature higher than the temperature of the lean exhaust gas composition is provided for the soot regeneration of the particle filter.Type: GrantFiled: January 7, 2008Date of Patent: February 16, 2010Assignee: Daimler AGInventors: Frank Duvinags, Stefan Kurze, Thomas Liebscher, Arno Nolte, Markus Paule, Norbert Ruzicka, Joachim Schommers
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Patent number: 7550125Abstract: An exhaust-gas purification unit for purifying the exhaust gas from an internal combustion engine which is preferably operated in lean-burn mode, in particular a diesel engine used in motor vehicles, has a particulate filter and a SCR catalytic converter arranged in the exhaust pipe in succession in the direction of flow, and a reducing-agent supply. Ammonia can be added to the exhaust gas from the internal combustion engine on the entry side of the SCR catalytic converter by the reducing-agent supply. The exhaust-gas purification unit includes a hydrogen-generating unit for enriching the exhaust gas from the internal combustion engine with the hydrogen which it generates.Type: GrantFiled: April 21, 2008Date of Patent: June 23, 2009Assignee: Daimler AGInventors: Frank Duvinage, Christian Goerigk, Arno Nolte, Markus Paule, Henning Sander
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Publication number: 20080256932Abstract: An exhaust-gas purification unit for purifying the exhaust gas from an internal combustion engine which is preferably operated in lean-burn mode, in particular a diesel engine used in motor vehicles, has a particulate filter and a SCR catalytic converter arranged in the exhaust pipe in succession in the direction of flow, and a reducing-agent supply. Ammonia can be added to the exhaust gas from the internal combustion engine on the entry side of the SCR catalytic converter by the reducing-agent supply. The exhaust-gas purification unit includes a hydrogen-generating unit for enriching the exhaust gas from the internal combustion engine with the hydrogen which it generates.Type: ApplicationFiled: April 21, 2008Publication date: October 23, 2008Applicant: Daimler AGInventors: Frank Duvinage, Christian Goerigk, Arno Nolte, Markus Paule, Henning Sander
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Publication number: 20080134648Abstract: In a method for operating an exhaust-gas cleaning unit of a diesel engine including a particle filter and a nitrogen oxide storage device arranged upstream of the particle filter, wherein sulfur regeneration of the nitrogen oxide storage device is performed periodically at raised exhaust gas temperatures and, in certain phases, with a rich exhaust gas composition, and also soot regeneration of the particle filter is performed at raised exhaust gas temperatures with a lean exhaust gas composition, at least some of the sulfur regeneration and the soot regeneration phases are performed in a combined soot and sulfur regeneration phase, and for the sulfur regeneration, at least temporarily, a rich exhaust-gas composition with a temperature higher than the temperature of the lean exhaust gas composition is provided for the soot regeneration of the particle filter.Type: ApplicationFiled: January 7, 2008Publication date: June 12, 2008Inventors: Frank Duvinags, Stefan Kurze, Thomas Liebscher, Arno Nolte, Markus Paule, Norbert Ruzicka, Joachim Schommers
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Patent number: 7361320Abstract: The invention proposes an exhaust-gas purification unit for purifying the exhaust gas from an internal combustion engine which is preferably operated in lean-burn mode, in particular a diesel engine used in motor vehicles, in which a particulate filter and a SCR catalytic converter are arranged in the exhaust pipe in succession in the direction of flow, and having a reducing-agent supply, it being possible for ammonia to be added to the exhaust gas from the internal combustion engine on the entry side of the SCR catalytic converter by the reducing-agent supply. According to the invention, the exhaust-gas purification unit includes a hydrogen-generating unit for enriching the exhaust gas from the internal combustion engine with the hydrogen which it generates. Use in motor vehicles.Type: GrantFiled: August 13, 2007Date of Patent: April 22, 2008Assignee: DaimlerChrysler AGInventors: Frank Duvinage, Christian Goerigk, Arno Nolte, Markus Paule, Henning Sander
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Publication number: 20070277502Abstract: An exhaust gas purification system for a motor vehicle having a reducing agent storage tank, and an associated operating method. In particular, an exhaust gas purification system for a motor vehicle, for which predetermined maintenance intervals is provided. The system includes a reducing agent storage tank for storing a reducing agent intended for exhaust gas purification. A method for operating a motor vehicle having an exhaust gas purification system and a reducing agent storage tank for storing a reducing agent intended for the exhaust gas purification, which comprises predetermined maintenance work after predetermined maintenance intervals is also provided.Type: ApplicationFiled: November 27, 2004Publication date: December 6, 2007Applicant: DaimlerChrysler AGInventors: Frank Duvinage, Christian Goerigk, Berthold Keppeler, Arno Nolte, Markus Paule, Joachim Schommers
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Publication number: 20070274892Abstract: The invention proposes an exhaust-gas purification unit for purifying the exhaust gas from an internal combustion engine which is preferably operated in lean-burn mode, in particular a diesel engine used in motor vehicles, in which a particulate filter and a SCR catalytic converter are arranged in the exhaust pipe in succession in the direction of flow, and having a reducing-agent supply, it being possible for ammonia to be added to the exhaust gas from the internal combustion engine on the entry side of the SCR catalytic converter by the reducing-agent supply. According to the invention, the exhaust-gas purification unit includes a hydrogen-generating unit for enriching the exhaust gas from the internal combustion engine with the hydrogen which it generates. Use in motor vehicles.Type: ApplicationFiled: August 13, 2007Publication date: November 29, 2007Applicant: DAIMLERCHRYSLER AGInventors: Frank DUVINAGE, Christian GOERIGK, Arno NOLTE, Markus PAULE, Henning SANDER
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Patent number: 7254939Abstract: An exhaust gas purification unit for purifying the exhaust gas from an internal combustion engine which is preferably operated in lean burn mode, in particular a diesel engine used in motor vehicles, has a particulate filter and a SCR catalytic converter arranged in the exhaust pipe in succession in the direction of flow, and a reducing agent supply. Ammonia can be added to the exhaust gas from the internal combustion engine on the entry side of the SCR catalytic converter by the reducing agent supply. A hydrogen-generating unit enriches the exhaust gas from the internal combustion engine with generated hydrogen.Type: GrantFiled: April 11, 2002Date of Patent: August 14, 2007Assignee: DaimlerChrysler AGInventors: Frank Duvinage, Christian Goerigk, Arno Nolte, Markus Paule, Henning Sander
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Publication number: 20070175208Abstract: An exhaust gas aftertreatment installment and associated exhaust gas aftertreatment method utilizes a nitrogen oxide storage catalytic converter and an SCR catalytic converter. A particulate filter is provided upstream of the nitrogen oxide storage catalytic converter or between the latter and the SCR catalytic converter or downstream of the SCR catalytic converter. The time of regeneration operating phases of the nitrogen oxide storage catalytic converter can be determined as a function of the nitrogen oxide content of the exhaust gas downstream of the nitrogen oxide storage catalytic converter or of the SCR catalytic converter and/or as a function of the ammonia loading of the latter. Moreover, a desired ammonia generation quantity can be determined for a respective regeneration operating phase. The installation and method are adopted for use for motor vehicle internal combustion engines and other engines which are operated predominantly in lean-burn mode.Type: ApplicationFiled: March 23, 2007Publication date: August 2, 2007Applicant: DAIMLERCHRYSLER AGInventors: Brigitte BANDL-KONRAD, Andreas HERTZBERG, Bernd KRUTZSCH, Arno NOLTE, Markus PAULE, Stefan RENFFTLEN, Norbert WALDBUESSER, Michel WEIBEL, Guenter WENNINGER, Rolf WUNSCH
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Patent number: 7210288Abstract: An exhaust gas aftertreatment installment and associated exhaust gas aftertreatment method utilizes a nitrogen oxide storage catalytic converter and an SCR catalytic converter. A particulate filter is provided upstream of the nitrogen oxide storage catalytic converter or between the latter and the SCR catalytic converter or downstream of the SCR catalytic converter. The time of regeneration operating phases of the nitrogen oxide storage catalytic converter can be determined as a function of the nitrogen oxide content of the exhaust gas downstream of the nitrogen oxide storage catalytic converter or of the SCR catalytic converter and/or as a function of the ammonia loading of the latter. Moreover, a desired ammonia generation quantity can be determined for a respective regeneration operating phase. The installation and method are adopted for use for motor vehicle internal combustion engines and other engines which are operated predominantly in lean-burn mode.Type: GrantFiled: December 16, 2003Date of Patent: May 1, 2007Assignee: DaimlerChrysler AGInventors: Brigitte Bandl-Konrad, Andreas Hertzberg, Bernd Krutzsch, Arno Nolte, Markus Paule, Stefan Renfftlen, Norbert Waldbuesser, Michel Weibel, Guenter Wenninger, Rolf Wunsch
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Publication number: 20070062189Abstract: in a method for operating a supercharged internal combustion engine and an internal combustion engine including an exhaust gas treatment system which comprises a catalytic converter arranged close to the engine, an exhaust gas turbocharger which is arranged downstream of the catalytic converter, and a post-injection device for introducing additional fuel into the exhaust gas flow upstream of the catalytic converter, wherein the heat energy of the exhaust gas mass flow which acts on the exhaust gas turbocharger is varied by controlling the fuel quantity which is additionally introduced into the exhaust gas flow by means of the post-injection device resulting in an improvement in the response behavior of the internal combustion engine, excess energy which is generated by the exhaust gas turbocharger by means of a motor generator connected to the exhaust gas turbocharger is stored in a storage device and is returned to the motor generator for rapidly accelerating the turbocharger when an increased power output iType: ApplicationFiled: September 15, 2006Publication date: March 22, 2007Inventors: Berthold Keppeler, Arno Nolte
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Publication number: 20070009398Abstract: The invention concerns an exhaust gas cleaning system for an internal combustion engine with at least one catalytically active component which is configured such that its catalytically active coating comprises at least a first region with high light-off temperature and a high temperature resistance and at least a second region with a low light-off temperature and a reduced temperature resistance (relative to the first region). The exhaust-gas-side surface of the catalytically active coating in the intake region of the catalytically active component has at least a partial diffusion layer, or is at least partially covered by a diffusion layer.Type: ApplicationFiled: June 16, 2004Publication date: January 11, 2007Applicant: DAIMLERCHRYSLER AGInventors: Frank Duvinage, Berthold Keppeler, Leopold Mikulic, Arno Nolte
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Publication number: 20060153761Abstract: An exhaust gas aftertreatment installment and associated exchaust gas aftertreatment method utilizes a nitrogen oxide storage catalytic converter and an SCR catalytic converter. A particulate filter is provided upstream of the nitrogen oxide storage catalytic converter or between the latter and the SCR catalytic converter or downstream of the SCR catalytic converter. The time of regeneration operating phases of the nitrogen oxide storage catalytic converter can be determined as a function of the nitrogen oxide content of the exhaust gas downstream of the nitrogen oxide storage catalytic converter or of the SCR catalytic converter and/or as a function of the ammonia loading of the latter. Moreover, a desired ammonia generation quantity can be determined for a respective regeneration operating phase. The installation and method are adopted for use for motor vehicle internal combustion engines and other engines which are operated predominantly in lean-burn mode.Type: ApplicationFiled: December 16, 2003Publication date: July 13, 2006Applicant: DaimlerChrysler AGInventors: Brigitte Bandl-Konrad, Andreas Hertzberg, Bernd Krutzsch, Arno Nolte, Markus Paule, Stefan Renfftlen, Norbert Waldbuesser, Michel Weibel, Guenter Wenninger, Rolf Wunsch