Patents by Inventor Leonhard Bartsch
Leonhard Bartsch 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: 10443515Abstract: Systems and methods are provided for an engine wherein one group of cylinders is active and a second group of cylinders is switchable, such that under low loads the second group of cylinders is deactivated, and under high loads the second group of cylinders is activated. Following deactivation of the second group of cylinders a throttling element in an intake line for the second group of cylinders is gradually closed. The closing of the throttling element may reduce pumping losses and thus increase engine efficiency.Type: GrantFiled: May 29, 2013Date of Patent: October 15, 2019Assignee: Ford Global Technologies, LLCInventors: Guohui Chen, Werner Willems, Leonhard Bartsch, Helmut Hans Ruhland
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Patent number: 10436147Abstract: Methods and systems are provided for a surface structure for a piston. In one example, the surface structure is located on at least a portion of the piston.Type: GrantFiled: October 11, 2016Date of Patent: October 8, 2019Assignee: Ford Global Technologies, LLCInventors: Joerg Kemmerling, Leonhard Bartsch, Frank Wunderlich, Heinz-Gerhard Wunderlich
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Patent number: 10167793Abstract: A method includes deactivating one or more cylinders of the second cylinder group responsive to engine operation in a first engine speed-load region, and adjusting exhaust valve timing of one or more cylinders of the first cylinder group responsive to the deactivating. The method further includes adjusting exhaust valve timing of the one or more cylinders of the first cylinder group responsive to engine operation in a second engine speed-load region, and deactivating the one or more cylinders of the second cylinder group responsive to the adjusting.Type: GrantFiled: July 26, 2016Date of Patent: January 1, 2019Assignee: Ford Global Technologies, LLCInventors: Leonhard Bartsch, Rob Stalman
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Patent number: 10151228Abstract: Methods and systems are provided for detecting ammonia slip from a catalytic converter. In one example, a method may include recirculating exhaust gas containing ammonia and measuring only a NOx concentration of the recirculated exhaust gas following its combustion.Type: GrantFiled: November 4, 2016Date of Patent: December 11, 2018Assignee: Ford Global Technologies, LLCInventors: Monika Angst, Leonhard Bartsch, Frederik De Smet, Daniel Roettger, Christian Winge Vigild
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Patent number: 9897060Abstract: Methods and systems are provided for an injector arrangement for an internal combustion engine. In one example, an injector arrangement may include an actuator positioned between a fuel injector and a cylinder head, with the actuator configured to adjust a position of the fuel injector relative to the cylinder head in order to adjust a protrusion amount of a fuel nozzle tip within a combustion chamber.Type: GrantFiled: October 6, 2016Date of Patent: February 20, 2018Assignee: Ford Global Technologies, LLCInventors: Frank Wunderlich, Joerg Kemmerling, Leonhard Bartsch, Juergen Karl Stief, Guohui Chen, Werner Willems
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Patent number: 9702326Abstract: Embodiments for an internal combustion engine are provided. In one example, and internal combustion engine comprises at least two cylinders each including an injection nozzle and a fuel supply system for supplying the cylinders with fuel. The fuel supply system includes a supply line connecting each injection nozzle to a first fuel reservoir storing fuel at a first pressure, the first fuel reservoir filled by a pump provided upstream, a second fuel reservoir storing fuel at a second pressure less than the first pressure and connected to the first fuel reservoir via a connecting line for filling with fuel, and a bypass line connecting the second fuel reservoir to each injection nozzle. The bypass line opens into the fuel supply system downstream of the first fuel reservoir, thereby forming a connection point, and a shutoff element is arranged in the bypass line, opening or shutting off the bypass line.Type: GrantFiled: December 13, 2013Date of Patent: July 11, 2017Assignee: Ford Global Technologies, LLCInventors: Daniel Roettger, Christian Winge Vigild, Leonhard Bartsch
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Publication number: 20170122168Abstract: Methods and systems are provided for detecting ammonia slip from a catalytic converter. In one example, a method may include recirculating exhaust gas containing ammonia and measuring only a NOx concentration of the recirculated exhaust gas following its combustion.Type: ApplicationFiled: November 4, 2016Publication date: May 4, 2017Inventors: Monika Angst, Leonhard Bartsch, Frederik De Smet, Daniel Roettger, Christian Winge Vigild
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Publication number: 20170107935Abstract: Methods and systems are provided for a surface structure for a piston. In one example, the surface structure is located on at least a portion of the piston.Type: ApplicationFiled: October 11, 2016Publication date: April 20, 2017Inventors: Joerg Kemmerling, Leonhard Bartsch, Frank Wunderlich, Heinz-Gerhard Wunderlich
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Publication number: 20170101973Abstract: Methods and systems are provided for an injector arrangement for an internal combustion engine. In one example, an injector arrangement may include an actuator positioned between a fuel injector and a cylinder head, with the actuator configured to adjust a position of the fuel injector relative to the cylinder head in order to adjust a protrusion amount of a fuel nozzle tip within a combustion chamber.Type: ApplicationFiled: October 6, 2016Publication date: April 13, 2017Inventors: Frank Wunderlich, Joerg Kemmerling, Leonhard Bartsch, Juergen Karl Stief, Guohui Chen, Werner Willems
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Publication number: 20170030279Abstract: Embodiments for operating an engine in a partial deactivation mode are provided. In one example, a method for an engine having a first cylinder group and a second cylinder group includes responsive to engine operation in a first engine speed-load region, deactivating one or more cylinders of the second cylinder group, and responsive to the deactivating, adjusting exhaust valve timing of one or more cylinders of the first cylinder group. The method further includes responsive to engine operation a second engine speed-load region, adjusting exhaust valve timing of the one or more cylinders of the first cylinder group, and responsive to the adjusting, deactivating the one or more cylinders of the second cylinder group.Type: ApplicationFiled: July 26, 2016Publication date: February 2, 2017Inventors: Leonhard Bartsch, Rob Stalman
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Patent number: 9206893Abstract: A method of operating a vehicle powertrain, includes: sensing a vehicle velocity; selecting at least two of a plurality of control strategies; activating the at least two control strategies, said two control strategies including: (i) operating the vehicle in a stationary start-stop mode when the vehicle speed is below a first threshold; and (ii) operating the vehicle in a rolling stationary start-stop mode when the vehicle speed is above a second threshold.Type: GrantFiled: October 24, 2012Date of Patent: December 8, 2015Assignee: Ford Global Technologies, LLCInventors: Ingo Lenz, Leonhard Bartsch
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Patent number: 9051861Abstract: A regeneration method (10) for regenerating an adsorber (19), connected downstream of an internal combustion engine (13), of a motor vehicle (11) with a hybrid drive train is described. The internal combustion engine (13) is operated in a phase of rich combustion for regeneration of the adsorber (19). According to the description, an engine load (30) and/or an engine rotational speed (31) of the internal combustion engine (13) for the rich combustion is influenced by means of an electric machine (14) which can be coupled mechanically to the internal combustion engine (13).Type: GrantFiled: September 12, 2013Date of Patent: June 9, 2015Assignee: Ford Global Technologies, LLCInventors: Frank Linzen, Leonhard Bartsch, Matthew Allen Schneider, Yasser Mohamed sayed Yacoub, Jan Harmsen
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Patent number: 8960161Abstract: The present application relates to a fuel injection system of an internal combustion engine having an automatic stop-start system, the fuel injection system comprising a high pressure fuel pump, which via a fuel pump line delivers fuel towards a common fuel rail, to which a fuel return line is connected. It is proposed that the fuel return line comprise a control element system, which firstly discharges a fuel pressure to a fuel tank, when a first predefined pressure limit is reached in the fuel return line, and which secondly prevents a further flow of fuel from the return line into the fuel tank, but allows a flow of fuel from the fuel tank into the fuel return line, so that the return line is designed as a fuel pressure accumulator.Type: GrantFiled: April 15, 2011Date of Patent: February 24, 2015Assignee: Ford Global Technologies, LLCInventors: Leonhard Bartsch, Dietmar Hermann, Claus Maerschank, David van Bebber
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Publication number: 20140196690Abstract: Embodiments for an internal combustion engine are provided. In one example, and internal combustion engine comprises at least two cylinders each including an injection nozzle and a fuel supply system for supplying the cylinders with fuel. The fuel supply system includes a supply line connecting each injection nozzle to a first fuel reservoir storing fuel at a first pressure, the first fuel reservoir filled by a pump provided upstream, a second fuel reservoir storing fuel at a second pressure less than the first pressure and connected to the first fuel reservoir via a connecting line for filling with fuel, and a bypass line connecting the second fuel reservoir to each injection nozzle. The bypass line opens into the fuel supply system downstream of the first fuel reservoir, thereby forming a connection point, and a shutoff element is arranged in the bypass line, opening or shutting off the bypass line.Type: ApplicationFiled: December 13, 2013Publication date: July 17, 2014Applicant: Ford Global Technologies, LLCInventors: Daniel Roettger, Christian Winge Vigild, Leonhard Bartsch
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Publication number: 20140102079Abstract: A regeneration method (10) for regenerating an adsorber (19), connected downstream of an internal combustion engine (13), of a motor vehicle (11) with a hybrid drive train is described. The internal combustion engine (13) is operated in a phase of rich combustion for regeneration of the adsorber (19). According to the description, an engine load (30) and/or an engine rotational speed (31) of the internal combustion engine (13) for the rich combustion is influenced by means of an electric machine (14) which can be coupled mechanically to the internal combustion engine (13).Type: ApplicationFiled: September 12, 2013Publication date: April 17, 2014Applicant: Ford Global Technologies, LLCInventors: Frank Linzen, Leonhard Bartsch, Matthew Allen Schneider, Yasser Mohamed Sayed Yacoub, Jan Harmsen
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Publication number: 20130333663Abstract: Systems and methods are provided for an engine wherein one group of cylinders is active and a second group of cylinders is switchable, such that under low loads the second group of cylinders is deactivated, and under high loads the second group of cylinders is activated. Following deactivation of the second group of cylinders a throttling element in an intake line for the second group of cylinders is gradually closed. The closing of the throttling element may reduce pumping losses and thus increase engine efficiency.Type: ApplicationFiled: May 29, 2013Publication date: December 19, 2013Applicant: Ford Global Technologies, LLCInventors: Guohui Chen, Werner Willems, Leonhard Bartsch, Helmut Hans Ruhland
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Publication number: 20130124057Abstract: A method of operating a vehicle powertrain, includes: sensing a vehicle velocity; selecting at least two of a plurality of control strategies; activating the at least two control strategies, said two control strategies including: (i) operating the vehicle in a stationary start-stop mode when the vehicle speed is below a first threshold; and (ii) operating the vehicle in a rolling stationary start-stop mode when the vehicle speed is above a second threshold.Type: ApplicationFiled: October 24, 2012Publication date: May 16, 2013Inventors: Ingo Lenz, Leonhard Bartsch
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Publication number: 20110253106Abstract: The present application relates to a fuel injection system of an internal combustion engine having an automatic stop-start system, the fuel injection system comprising a high pressure fuel pump, which via a fuel pump line delivers fuel towards a common fuel rail, to which a fuel return line is connected. It is proposed that the fuel return line comprise a control element system, which firstly discharges a fuel pressure to a fuel tank, when a first predefined pressure limit is reached in the fuel return line, and which secondly prevents a further flow of fuel from the return line into the fuel tank, but allows a flow of fuel from the fuel tank into the fuel return line, so that the return line is designed as a fuel pressure accumulator.Type: ApplicationFiled: April 15, 2011Publication date: October 20, 2011Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Leonhard Bartsch, Dietmar Hermann, Claus Maerschank, David van Bebber
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Patent number: 6539899Abstract: A rotary valve provides single point flow control of coolant within the cooling system of an internal combustion engine. The valve distributes coolant flow from the engine in predetermined flow modes to either 1) the radiator and heater simultaneously, 2) a bypass circuit only, 3) the heater only, or 4) the radiator and bypass simultaneously. The single-point coolant control results in advantages of shorter warm-up times, a lower pressure drop (reducing power consumption by the pump), reduced engine emissions and fuel consumption, improved cabin heater performance, and improved engine durability due to reduced thermal shocks to the engine components by virtue of more precise control of engine operating temperature.Type: GrantFiled: February 11, 2002Date of Patent: April 1, 2003Assignee: Visteon Global Technologies, Inc.Inventors: Davide F. Piccirilli, Leonhard Bartsch, Keith E. Liederman, Matti K. Vint, Joseph V. Bejster, Nicholas P. Harmer, Martin Green, Mathew E. Haigh, Ali Jalilevand