Patents by Inventor Stephan Uhl
Stephan Uhl 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: 10563634Abstract: The invention relates to a method for starting an internal combustion engine for a motor vehicle, said internal combustion engine having at least two cylinders, a valve drive with at least one inlet valve and at least one outlet valve for each of the cylinders, wherein at least the closing times of the inlet valves can be variably adjusted, and a direct injection system, in particular a gasoline direct injection system, the starting process being initiated by a direct injection and ignition in one of the cylinders. During a starting process, the closing time of at least one inlet valve differs from at least one of the other cylinders dependent on at least one current state value.Type: GrantFiled: June 13, 2014Date of Patent: February 18, 2020Assignee: Robert Bosch GmbHInventors: Jens Tophoven, Stephan Uhl
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Patent number: 10034594Abstract: A cleaning trolley includes a base plate supported by rolling members; at least four upright hollow profiles for fixing cross walls arranged on the base plate, wherein each cross wall consists of two separate wall elements removably arranged back-to-back to each other and fixed by said upright hollow profiles; and an upper frame for securing the at least four upright hollow profiles. Further, the cleaning trolley may include a primary section and a secondary section, each section having a base plate supported by rolling members, wherein the primary section and the secondary section are removably connected by a connection mechanism, which connection mechanism contains a pedal pivotably attached to the bottom side of the base plate of the secondary section, and its actuation releases claws which in connection position are engaged with the primary section.Type: GrantFiled: December 14, 2017Date of Patent: July 31, 2018Assignee: Ecolab USA Inc.Inventors: Matthias Menzel, Stefan Rutschmann, Enzo Dario Sforza, Stephan Uhl, Klaus-Günter Hub, Martin Stuetzel
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Patent number: 9980623Abstract: The present invention refers to a cleaning trolley comprising a base plate supported by rolling members; at least four upright hollow profiles for fixing cross walls arranged on the base plate, wherein each cross wall consists of two separate wall elements removably arranged back-to-back to each other and fixed by said upright hollow profiles; and an upper frame for securing the at least four upright hollow profiles. Further, the invention provides a cleaning trolley comprising a primary section and a secondary section, each section having a base plate supported by rolling members, wherein the primary section and the secondary section are removably connected by a connection mechanism, which connection mechanism contains a pedal pivotably attached to the bottom side of the base plate of the secondary section, and its actuation releases claws which in connection position are engaged with the primary section.Type: GrantFiled: November 5, 2008Date of Patent: May 29, 2018Assignee: Ecolab USA Inc.Inventors: Matthias Menzel, Stefan Rutschmann, Enzo Dario Sforza, Stephan Uhl, Klaus-Günter Hub, Martin Stuetzel
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Publication number: 20180103820Abstract: A cleaning trolley includes a base plate supported by rolling members; at least four upright hollow profiles for fixing cross walls arranged on the base plate, wherein each cross wall consists of two separate wall elements removably arranged back-to-back to each other and fixed by said upright hollow profiles; and an upper frame for securing the at least four upright hollow profiles. Further, the cleaning trolley may include a primary section and a secondary section, each section having a base plate supported by rolling members, wherein the primary section and the secondary section are removably connected by a connection mechanism, which connection mechanism contains a pedal pivotably attached to the bottom side of the base plate of the secondary section, and its actuation releases claws which in connection position are engaged with the primary section.Type: ApplicationFiled: December 14, 2017Publication date: April 19, 2018Inventors: Matthias Menzel, Stefan Rutschmann, Enzo Dario Sforza, Stephan Uhl, Klaus-Günter Hub, Martin Stuetzel
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Publication number: 20160146175Abstract: The invention relates to a method for starting an internal combustion engine for a motor vehicle, said internal combustion engine having at least two cylinders, a valve drive with at least one inlet valve and at least one outlet valve for each of the cylinders, wherein at least the closing times of the inlet valves can be variably adjusted, and a direct injection system, in particular a gasoline direct injection system, the starting process being initiated by a direct injection and ignition in one of the cylinders. During a starting process, the closing time of at least one inlet valve differs from at least one of the other cylinders dependent on at least one current state value.Type: ApplicationFiled: June 13, 2014Publication date: May 26, 2016Inventors: Jens Tophoven, Stephan Uhl
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Patent number: 8969278Abstract: The present invention refers to an aqueous composition comprising one or more amphoteric, organic polynitrogen-compounds having at least 3 nitrogen atoms contained in the molecule in the form of an amine and/or amide and one or more types of inorganic nanoparticles, a concentrate comprising said composition and to a method for treating and/or cleaning a surface which uses said composition.Type: GrantFiled: December 8, 2011Date of Patent: March 3, 2015Assignee: Ecolab USA Inc.Inventors: Stephan Uhl, Jacqueline Thöne
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Publication number: 20120138089Abstract: The present invention refers to an aqueous composition comprising one or more amphoteric, organic polynitrogen-compounds having at least 3 nitrogen atoms contained in the molecule in the form of an amine and/or amide and one or more types of inorganic nanoparticles, a concentrate comprising said composition and to a method for treating and/or cleaning a surface which uses said composition.Type: ApplicationFiled: December 8, 2011Publication date: June 7, 2012Applicant: Ecolab USA Inc.Inventors: Stephan UHL, Jacqueline Thöne
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Patent number: 8093195Abstract: The present invention refers to an aqueous composition comprising one or more amphoteric, organic polynitrogen-compounds having at least 3 nitrogen atoms contained in the molecule in the form of an amine and/or amide and one or more types of inorganic nanoparticles, a concentrate comprising said composition and to a method for treating and/or cleaning a surface which uses said composition.Type: GrantFiled: November 9, 2005Date of Patent: January 10, 2012Assignee: Ecolab USA Inc.Inventors: Stephan Uhl, Jacqueline Thöne
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Publication number: 20110198974Abstract: The present invention refers to a cleaning trolley comprising a base plate supported by rolling members; at least four upright hollow profiles for fixing cross walls arranged on the base plate, wherein each cross wall consists of two separate wall elements removably arranged back-to-back to each other and fixed by said upright hollow profiles; and an upper frame for securing the at least four upright hollow profiles. Further, the invention provides a cleaning trolley comprising a primary section and a secondary section, each section having a base plate supported by rolling members, wherein the primary section and the secondary section are removably connected by a connection mechanism, which connection mechanism contains a pedal pivotably attached to the bottom side of the base plate of the secondary section, and its actuation releases claws which in connection position are engaged with the primary section.Type: ApplicationFiled: November 5, 2008Publication date: August 18, 2011Applicant: ECOLAB USA INC.Inventors: Matthias Menzel, Stefan Rutschmann, Enzo Dario Sforza, Stephan Uhl, Klaus-Günter Hub, Martin Stuetzel
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Patent number: 7987839Abstract: The invention concerns a method to determine the composition of a fuel from the components ethanol and gasoline of an internal combustion engine, wherein the fuel is supplied to the internal combustion engine by a fuel supply unit and via two fuel distributor rails; and the exhaust gas is discharged from the internal combustion engine by two exhaust gas manifolds of a first and a second exhaust gas system, which are separated from each other, wherein the first and second exhaust gas system have in each case at least one exhaust gas probe and wherein current changes in the ethanol content of the fuel are evaluated from the signal differences of lambda signals from the exhaust gas probes. With this method, a change in the ethanol content of the fuel can be detected, and an explicit condition for a change in fuel can be derived. Moreover, with the method, errors in the fuel-mixture can be distinguished from an altered fuel composition, which takes place after the tank has been filled fueling.Type: GrantFiled: May 13, 2008Date of Patent: August 2, 2011Assignee: Robert Bosch GmbHInventors: Oliver Miersch-Wiemers, Georg Mallebrein, Carlos Koster, Stephan Uhl, Juergen Pfeiffer
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Publication number: 20110030664Abstract: The invention relates to a method and device for determining the composition of a fuel mixture made of one first fuel and at least one second fuel for operating an internal combustion engine, wherein said internal combustion engine has a fuel metering apparatus and at least one exhaust gas probe in an exhaust gas channel. According to the method of the invention, it is provided that the fuel mixture is at least temporarily supplied to the exhaust gas probe at least partially uncombusted, and the composition of the fuel mixture is determined from an output signal of the exhaust gas probe. According to the device of the invention, it is provided that the exhaust gas probe is situated proximal to the motor in the direction of the exhaust gas flow before a first catalytic converter, and the fuel mixture can be supplied at least partially uncombusted to the exhaust gas probe at least temporarily.Type: ApplicationFiled: November 14, 2008Publication date: February 10, 2011Applicant: Robert Bosch GMBHInventors: Jens Schneider, Stephan Uhl, Klaus Winkler, Lothar Diehl, Dimitrios Stavrianos, Juergen Wendt
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Publication number: 20090064977Abstract: The invention relates to a method to determine an alcohol content in the fuel of an internal combustion engine, in which the fuel is delivered to the individual cylinders of the internal combustion engine by way of a fuel supply via a fuel rail; and the exhaust gas of the internal combustion engine is discharged via an exhaust gas manifold of an exhaust gas system, wherein at least one exhaust gas probe is present, and in which current changes in the alcohol content of the fuel are evaluated from the signal flow of a lambda signal of the exhaust gas probe, and said signal results from a closed-loop lambda control. With this method a change in the alcohol content of the fuel can be detected and an explicit condition for a change in fuel can be derived. Moreover with the method, fuel-mixture errors can be distinguished from a changed fuel composition after a filling of the tank (fueling).Type: ApplicationFiled: May 2, 2008Publication date: March 12, 2009Applicant: Robert Bosch GmbHInventors: Oliver MIERSCH-WIEMERS, Georg Mallebrein, Stephan Uhl, Juergen Pfeiffer
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Publication number: 20090007936Abstract: The present invention refers to an aqueous composition comprising one or more amphoteric, organic polynitrogen-compounds having at least 3 nitrogen atoms contained in the molecule in the form of an amine and/or amide and one or more types of inorganic nanoparticles, a concentrate comprising said composition and to a method for treating and/or cleaning a surface which uses said composition.Type: ApplicationFiled: November 9, 2005Publication date: January 8, 2009Inventors: Stephan Uhl, Jacqueline Thone
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Publication number: 20080295574Abstract: The invention concerns a method for the fuel analysis in an internal combustion engine, which can be operated with different fuels containing ethanol and gasoline in varying compositions, wherein the gasoline content is ascertained in the fuel. In so doing, it is possible for especially the cold starting characteristics of the internal combustion engine to be improved, because the enrichment of the fuel mixture, which is necessary to achieve this improvement, can be optimally adjusted according to the gasoline content in the fuel.Type: ApplicationFiled: April 18, 2008Publication date: December 4, 2008Applicant: Robert Bosch GmbHInventors: Oliver Miersch-Wiemers, Georg Mallebrein, Stephan Uhl
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Publication number: 20080283030Abstract: The invention concerns a method to determine the composition of a fuel from the components ethanol and gasoline of an internal combustion engine, wherein the fuel is supplied to the internal combustion engine by means of a fuel supply unit and via two fuel distributor rails; and the exhaust gas is discharged from the internal combustion engine by means of two exhaust gas manifolds of a first and a second exhaust gas system, which are separated from each other, wherein the first and second exhaust gas system have in each case at least one exhaust gas probe and wherein current changes in the ethanol content of the fuel are evaluated from the signal differences of lambda signals from the exhaust gas probes. With this method, a change in the ethanol content of the fuel can be detected, and an explicit condition for a change in fuel can be derived. Moreover, with the method, errors in the fuel-mixture can be distinguished from an altered fuel composition, which takes place after the tank has been filled (fueling).Type: ApplicationFiled: May 13, 2008Publication date: November 20, 2008Applicant: Robert Bosch GmbHInventors: Oliver Miersch-Wiemers, Georg Mallebrein, Carlos Koster, Stephan Uhl, Juergen Pfeiffer
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Patent number: 7284375Abstract: A device and a method for closed-loop control of at least a first exhaust gas turbocharger with variable turbine geometry. In this regard, a first closed-loop control system is provided for automatically controlling the charge air pressure, and a second closed-loop control system is provided for automatically controlling the turbine speed. The second closed-loop control system is subordinate to the first closed-loop control system. The correcting variable (SG1) of the first closed-loop control system corresponds to the reference input of the second closed-loop control system.Type: GrantFiled: June 30, 2005Date of Patent: October 23, 2007Assignee: MTU Friedrichshafen GmbHInventors: Franz Butscher, Stephan Uhl
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Patent number: D624269Type: GrantFiled: November 3, 2009Date of Patent: September 21, 2010Assignee: Ecolab Inc.Inventors: Stephan Uhl, Matthias Menzel, Stefan Rutschmann, Dario Enzo Sforza, Klaus-Günter Hub, Martin Stützel
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Patent number: D624270Type: GrantFiled: November 3, 2009Date of Patent: September 21, 2010Assignee: Ecolab Inc.Inventors: Stephan Uhl, Matthias Menzel, Stefan Rutschmann, Dario Enzo Sforza, Klaus-Günter Hub, Martin Stützel
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Patent number: D624271Type: GrantFiled: November 3, 2009Date of Patent: September 21, 2010Assignee: Ecolab Inc.Inventors: Stephan Uhl, Matthias Menzel, Stefan Rutschmann, Dario Sforza, Klaus-Günter Hub, Martin Stützel
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Patent number: D624724Type: GrantFiled: November 3, 2009Date of Patent: September 28, 2010Assignee: Ecolab Inc.Inventors: Stephan Uhl, Matthias Menzel, Stefan Rutschmann, Dario Enzo Sforza, Klaus-Günter Hub, Martin Stützel