Patents by Inventor Andreas Kistner
Andreas Kistner 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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Patent number: 8726640Abstract: A device for the aftertreatment of exhaust gases in an exhaust gas system of internal combustion engines, having at least one reductant decomposition catalyst. Arranged in the exhaust gas flow, and a metering device arranged upstream of the latter in an exhaust gas line for supplying reductant. Preferably at least one other catalyst device is provided downstream of the reductant decomposition catalyst. An inlet section for the exhaust gas having at least one flow deflection area is arranged upstream of the reductant decomposition catalyst and constructed for the exhaust gas to be fed into a housing radially outside an inlet pipe adjoining the reductant decomposition catalyst that encloses the inlet pipe, and is guided in counterflow through a front inlet opening of the inlet pipe to the reductant decomposition catalyst. The reductant is fed into the flow deflection area associated with the inlet opening.Type: GrantFiled: November 19, 2010Date of Patent: May 20, 2014Assignee: MAN Truck & Bus AGInventors: Marco Tilinski, Andreas Klingsporn, Andreas Döring, Andreas Kistner, Petra Seidel
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Patent number: 8261538Abstract: The invention is directed to a device for converting exhaust gas constituents of an internal combustion engine by means of at least one catalyzer and/or particle filter and/or particle separator and for compensating relative movements between the internal combustion engine and the exhaust gas train and/or relative movements between different parts of the exhaust gas train by means of at least one compensator permitting relative movements. The at least one catalyzer for converting exhaust gas constituents and/or the at least one particle filter and/or the at least one particle separator are/is arranged inside the compensator and or inside the part of the exhaust gas train that is permanently connected to the compensator. The outer diameter of the catalyzer and/or of the particle filter and/or of the particle separator is less than or equal to the inner diameter of the compensator.Type: GrantFiled: February 18, 2009Date of Patent: September 11, 2012Assignee: MAN Nutzfahrzeuge AGInventors: Andreas Kistner, Andreas Döring
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Publication number: 20110113759Abstract: A device for the aftertreatment of exhaust gases in an exhaust gas system of internal combustion engines, having at least one reductant decomposition catalyst. Arranged in the exhaust gas flow, and a metering device arranged upstream of the latter in an exhaust gas line for supplying reductant. Preferably at least one other catalyst device is provided downstream of the reductant decomposition catalyst. An inlet section for the exhaust gas having at least one flow deflection area is arranged upstream of the reductant decomposition catalyst and constructed for the exhaust gas to be fed into a housing radially outside an inlet pipe adjoining the reductant decomposition catalyst that encloses the inlet pipe, and is guided in counterflow through a front inlet opening of the inlet pipe to the reductant decomposition catalyst. The reductant is fed into the flow deflection area associated with the inlet opening.Type: ApplicationFiled: November 19, 2010Publication date: May 19, 2011Applicant: MAN Nutzfahrzeuge AGInventors: Marco Tilinski, Andreas Klingsporn, Andreas Döring, Andreas Kistner, Petra Seidel
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Publication number: 20090205325Abstract: The invention is directed to a device for converting exhaust gas constituents of an internal combustion engine by means of at least one catalyzer and/or particle filter and/or particle separator and for compensating relative movements between the internal combustion engine and the exhaust gas train and/or relative movements between different parts of the exhaust gas train by means of at least one compensator permitting relative movements. The at least one catalyzer for converting exhaust gas constituents and/or the at least one particle filter and/or the at least one particle separator are/is arranged inside the compensator and or inside the part of the exhaust gas train that is permanently connected to the compensator. The outer diameter of the catalyzer and/or of the particle filter and/or of the particle separator is less than or equal to the inner diameter of the compensator.Type: ApplicationFiled: February 18, 2009Publication date: August 20, 2009Applicant: MAN Nutzfahrzeuge AGInventors: Andreas Kistner, Andreas Doring
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Patent number: 7017559Abstract: A method for operating a fuel system for an internal combustion engine operated with fuel gas. The fuel system has at least one electrically actuated shutoff valve (4) and at least one electrically operated heating device (14, 16). The operating method includes: generating a signal to turn on the heating device (14, 16) when the internal combustion engine is turned on; determining a heating demand (?reference) of the fuel system when the heating device (14, 16) is turned on; and depending on the heating demand (?reference) of the fuel system, determining a delay time between the time the heating device (14, 16) is turned on and the time the shutoff valve (4) is opened. The heating demand (?reference) can be a function of a temperature (Tengine coolant) of the engine and/or a temperature (Thydraulic fluid) independent of the engine and/or the current (Iheating) flowing through the heating device.Type: GrantFiled: March 5, 2004Date of Patent: March 28, 2006Assignees: Linde AG, Still GmbH, Volkswagen AGInventors: Jörn Mey, Andreas Kistner, Andreas Firsching, Frank Wucherpfenning, Joachim Seydell
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Patent number: 6976455Abstract: A fuel system for an internal combustion engine (12) operated with fuel gas includes an evaporator (1) in which the liquid fuel gas is transformed by the addition of heat into a gaseous state. The evaporator (1) has a first heating device (13) configured to transmit a portion of the waste heat of the internal combustion engine (12) to the fuel gas in the evaporator (1). The evaporator (1) has a second heating device, by means of which the fuel gas in the evaporator (1) can be heated regardless of the condition of the internal combustion engine (12). The second heating device (14) can include an electrical heating element, e.g., a PTC heating element.Type: GrantFiled: November 6, 2003Date of Patent: December 20, 2005Assignees: Linde Aktiengesellschaft, Volkswagen AGInventors: Jörn Mey, Andreas Kistner, Andreas Firsching, Frank Wucherpfenning, Joachim Seydell, Iraklis Avramopoulos
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Publication number: 20040231647Abstract: A method for operating a fuel system for an internal combustion engine operated with fuel gas. The fuel system has at least one electrically actuated shutoff valve (4) and at least one electrically operated heating device (14, 16).Type: ApplicationFiled: March 5, 2004Publication date: November 25, 2004Inventors: Jorn Mey, Andreas Kistner, Andreas Firsching, Frank Wucherpfenning, Joachim Seydell
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Publication number: 20040144370Abstract: A fuel system for an internal combustion engine (12) operated with fuel gas includes an evaporator (1) in which the liquid fuel gas is transformed by the addition of heat into a gaseous state. The evaporator (1) has a first heating device (13) configured to transmit a portion of the waste heat of the internal combustion engine (12) to the fuel gas in the evaporator (1). The evaporator (1) has a second heating device, by means of which the fuel gas in the evaporator (1) can be heated regardless of the condition of the internal combustion engine (12). The second heating device (14) can include an electrical heating element, e.g., a PTC heating element.Type: ApplicationFiled: November 6, 2003Publication date: July 29, 2004Inventors: Jorn Mey, Andreas Kistner, Andreas Firsching, Frank Wucherpfenning, Joachim Seydell, Iraklis Avramopoulos
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Patent number: 6553609Abstract: The invention relates to an apparatus for floor cleaning, with several wheels 4, 5, 6 being attached to a frame R in such a way that a curve movement about a momentary center MP, MP1, MP2 can be performed and all momentary centers MP, MP1, MP2 form a momentary center axis MA extending substantially transversally to the frame R, and with a cleaning device 24a, 24b being received in the frame R, which cleaning device forms a cleaning surface area RF which is delimited by a circumferential edge. In order to reduce uncleaned residual surfaces when moving along contours it is provided in accordance with the invention that the momentary center axis MA forms at least one point of intersection S1, S2 in a section of the circumferential edge disposed in the zone of the longitudinal side of the frame R.Type: GrantFiled: April 17, 2001Date of Patent: April 29, 2003Inventors: Dieter Tremmel, Peter Belkhofer, Andreas Kistner, Michael Kotz, Christian Neumann, Markus Merkl, Holger Sandner
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Publication number: 20010032372Abstract: The invention relates to an apparatus for floor cleaning, with several wheels 4, 5, 6 being attached to a frame R in such a way that a curve movement about a momentary center MP, MP1, MP2 can be performed and all momentary centers MP, MP1, MP2 form a momentary center axis MA extending substantially transversally to the frame R, and with a cleaning device 24a, 24b being received in the frame R, which cleaning device forms a cleaning surface area RF which is delimited by a circumferential edge. In order to reduce uncleaned residual surfaces when moving along contours it is provided in accordance with the invention that the momentary center axis MA forms at least one point of intersection S1, S2 in a section of the circumferential edge disposed in the zone of the longitudinal side of the frame R.Type: ApplicationFiled: April 17, 2001Publication date: October 25, 2001Inventors: Dieter Tremmel, Peter Belkhofer, Andreas Kistner, Michael Kotz, Christian Neumann, Markus Merkl, Holger Sandner