Patents by Inventor Wolfgang Samenfink
Wolfgang Samenfink 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: 8548717Abstract: A method for performing an intake manifold injection for at least one combustion chamber of an internal combustion engine, at least one intake valve being connected to an intake port, at least one exhaust valve and at least one injector being assigned to at least one combustion chamber, fuel being injected into the at least one intake port by the at least one injector during an injection time, the injection time being started after the closing of the at least one exhaust valve and terminated before the closing of the at least one intake valve for performing the method.Type: GrantFiled: June 22, 2010Date of Patent: October 1, 2013Assignee: Robert Bosch GmbHInventors: Axel Lang, Wolfgang Samenfink, Sebastien Kieffer
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Patent number: 8352154Abstract: In a control unit, a method, a computer program and a computer program product for operating an internal combustion engine in the context of a combined direct and manifold injection, fuel is injected by at least one first injection valve into an induction manifold and/or by at least one second injection valve directly into a combustion chamber for combustion. In at least one predefined operating state of the internal combustion engine, fuel is only injected by the at least one first injection valve into the induction manifold for a predetermined number of successive combustion cycles. In a subsequent combustion cycle, fuel is injected by the at least one first injection valve into the induction manifold and by the at least one second injection valve directly into the combustion chamber or only by the at least one second injection valve directly into the combustion chamber.Type: GrantFiled: June 17, 2009Date of Patent: January 8, 2013Assignee: Robert Bosch GmbHInventors: Georg Mallebrein, Michael Frank, Alexander Schenck Zu Schweinsberg, Helerson Kemmer, Wolfgang Samenfink
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Patent number: 8260525Abstract: A method and a device for operating an internal combustion engine and an internal combustion engine are described, the fuel being injectable directly into a combustion chamber in particular via at least one first injector and also being injectable into an intake manifold in particular via at least one second injector. For injection of fuel in a full-load operating state of the internal combustion engine, a first selection is made from the at least one first injector and the at least one second injector having a first metering range, including a full-load injection quantity required for the full-load operating state. For injection of fuel in a partial-load operating state of the internal combustion engine, a second selection is made from the at least one first injector and the at least one second injector having a second metering range, including the adjustment of a minimum fuel injection quantity required for operating the internal combustion engine.Type: GrantFiled: April 6, 2009Date of Patent: September 4, 2012Assignee: Robert Bosch GmbHInventors: Georg Mallebrein, Michael Frank, Alexander Schenck Zu Schweinsberg, Helerson Kemmer, Wolfgang Samenfink
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Patent number: 7895987Abstract: A method for introducing fuel into a combustion chamber of an internal combustion engine is provided, in which fuel is injected at variable metering directly into the combustion chamber by a first fuel injector on the one hand, and into an air aspiration channel leading to the combustion chamber by a second fuel injector on the other hand. To ensure a reliable cold start of the internal combustion engine when using regenerative fuels even at low temperatures, in the cold start of the internal combustion engine a partial quantity of the required overall fuel quantity is injected via the second fuel injector, this partial quantity being the particular fuel quantity that exceeds a maximum fuel quantity able to be injected via the first fuel injector.Type: GrantFiled: July 17, 2009Date of Patent: March 1, 2011Assignee: Robert Bosch GmbHInventors: Georg Mallebrein, Michael Frank, Alexander Schenck Zu Schweinsberg, Helerson Kemmer, Wolfgang Samenfink
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Publication number: 20110041806Abstract: A method for performing an intake manifold injection for at least one combustion chamber of an internal combustion engine, at least one intake valve being connected to an intake port, at least one exhaust valve and at least one injector being assigned to at least one combustion chamber, fuel being injected into the at least one intake port by the at least one injector during an injection time, the injection time being started after the closing of the at least one exhaust valve and terminated before the closing of the at least one intake valve for performing the method.Type: ApplicationFiled: June 22, 2010Publication date: February 24, 2011Inventors: Axel LANG, Wolfgang SAMENFINK, Sebastien KIEFFER
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Patent number: 7894973Abstract: In a method for operating an internal combustion engine, a setpoint fuel quantity to be injected is subdivided into a first fuel quantity which is to be injected into an intake manifold of the internal combustion engine, and a second fuel quantity to be injected directly into a combustion chamber of the internal combustion engine. The subdivision of the fuel quantity is performed as a function of a temperature that is characteristic for the operation of the internal combustion engine, e.g., in a start of the internal combustion engine, and the ratio between the first fuel quantity and the second fuel quantity is continually modified as a function of the temperature.Type: GrantFiled: April 9, 2009Date of Patent: February 22, 2011Assignee: Robert Bosch GmbHInventors: Georg Mallebrein, Michael Frank, Alexander Schenck Zu Schweinsberg, Helerson Kemmer, Wolfgang Samenfink
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Patent number: 7881857Abstract: In a method for operating an internal combustion engine, the fuel is supplied to at least one combustion chamber via at least one injector, which method includes the following steps: a) a total injection is divided into a basic injection and at least one measured injection; b) the injection time of the measured injection is successively decreased and the injection time of the basic injection is successively increased so that a total injection quantity ascertained from a valve characteristic curve remains the same.Type: GrantFiled: September 26, 2006Date of Patent: February 1, 2011Assignee: Robert Bosch GmbHInventors: Wolfgang Samenfink, Andreas Kufferath
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Patent number: 7810464Abstract: Procedure for starting a combustion engine with at least one combustion chamber, whereby injections from the high pressure system are deposited into the combustion chamber during the starting process, is thereby characterized, in that at least one injection into the combustion engine can be blanked out in order to limit a pressure drop in the high pressure system.Type: GrantFiled: November 20, 2008Date of Patent: October 12, 2010Assignee: Robert Bosch GmbHInventors: Wolfgang Samenfink, Andreas Kufferath
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Publication number: 20100037852Abstract: A method for introducing fuel into a combustion chamber of an internal combustion engine is provided, in which fuel is injected at variable metering directly into the combustion chamber by a first fuel injector on the one hand, and into an air aspiration channel leading to the combustion chamber by a second fuel injector on the other hand. To ensure a reliable cold start of the internal combustion engine when using regenerative fuels even at low temperatures, in the cold start of the internal combustion engine a partial quantity of the required overall fuel quantity is injected via the second fuel injector, this partial quantity being the particular fuel quantity that exceeds a maximum fuel quantity able to be injected via the first fuel injector.Type: ApplicationFiled: July 17, 2009Publication date: February 18, 2010Inventors: Georg Mallebrein, Michael Frank, Alexander Schenck Zu Schweinsberg, Helerson Kemmer, Wolfgang Samenfink
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Publication number: 20090319154Abstract: In a control unit, a method, a computer program and a computer program product for operating an internal combustion engine in the context of a combined direct and manifold injection, fuel is injected by at least one first injection valve into an induction manifold and/or by at least one second injection valve directly into a combustion chamber for combustion. In at least one predefined operating state of the internal combustion engine, fuel is only injected by the at least one first injection valve into the induction manifold for a predetermined number of successive combustion cycles. In a subsequent combustion cycle, fuel is injected by the at least one first injection valve into the induction manifold and by the at least one second injection valve directly into the combustion chamber or only by the at least one second injection valve directly into the combustion chamber.Type: ApplicationFiled: June 17, 2009Publication date: December 24, 2009Inventors: Georg MALLEBREIN, Michael FRANK, Alexander SCHENCK ZU SCHWEINSBERG, Helerson KEMMER, Wolfgang SAMENFINK
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Publication number: 20090299604Abstract: In a method for operating an internal combustion engine, the fuel is supplied to at least one combustion chamber via at least one injector, which method includes the following steps: a) a total injection is divided into a basic injection and at least one measured injection; b) the injection time of the measured injection is successively decreased and the injection time of the basic injection is successively increased so that a total injection quantity ascertained from a valve characteristic curve remains the same.Type: ApplicationFiled: September 26, 2006Publication date: December 3, 2009Inventors: Wolfgang Samenfink, Andreas Kufferath
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Publication number: 20090281709Abstract: In a method for operating an internal combustion engine, a setpoint fuel quantity to be injected is subdivided into a first fuel quantity which is to be injected into an intake manifold of the internal combustion engine, and a second fuel quantity to be injected directly into a combustion chamber of the internal combustion engine. The subdivision of the fuel quantity is performed as a function of a temperature that is characteristic for the operation of the internal combustion engine, e.g., in a start of the internal combustion engine, and the ratio between the first fuel quantity and the second fuel quantity is continually modified as a function of the temperature.Type: ApplicationFiled: April 9, 2009Publication date: November 12, 2009Inventors: George Mallebrein, Michael Frank, Alexander Schenck Zu Schweinsberg, Helerson Kemmer, Wolfgang Samenfink
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Publication number: 20090265078Abstract: A method and a device for operating an internal combustion engine and an internal combustion engine are described, the fuel being injectable directly into a combustion chamber in particular via at least one first injector and also being injectable into an intake manifold in particular via at least one second injector. For injection of fuel in a full-load operating state of the internal combustion engine, a first selection is made from the at least one first injector and the at least one second injector having a first metering range, including a full-load injection quantity required for the full-load operating state. For injection of fuel in a partial-load operating state of the internal combustion engine, a second selection is made from the at least one first injector and the at least one second injector having a second metering range, including the adjustment of a minimum fuel injection quantity required for operating the internal combustion engine.Type: ApplicationFiled: April 6, 2009Publication date: October 22, 2009Inventors: Georg MALLEBREIN, Michael FRANK, Alexander SCHENCK ZU SCHWEINSBERG, Helerson KEMMER, Wolfgang SAMENFINK
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Publication number: 20090173304Abstract: Procedure for starting a combustion engine with at least one combustion chamber, whereby injections from the high pressure system are deposited into the combustion chamber during the starting process, is thereby characterized, in that at least one injection into the combustion engine can be blanked out in order to limit a pressure drop in the high pressure system.Type: ApplicationFiled: November 20, 2008Publication date: July 9, 2009Applicant: Robert Bosch GmbHInventors: WOLFGANG SAMENFINK, ANDREAS KUFFERATH
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Patent number: 6513486Abstract: A method for mixture formation in an internal combustion engine with direct gasoline injection, and an internal combustion engine with direct gasoline injection, are proposed in which the fuel is sprayed at the piston bottom in a thin coherent stream, deflected there, and then atomized.Type: GrantFiled: June 4, 2001Date of Patent: February 4, 2003Assignee: Robert Bosch GmbHInventors: Wolfgang Samenfink, Rainer Ortmann
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Publication number: 20020043240Abstract: A method for mixture formation in an internal combustion engine with direct gasoline injection, and an internal combustion engine with direct gasoline injection, are proposed in which the fuel is sprayed at the piston bottom in a thin coherent stream, deflected there, and then atomized.Type: ApplicationFiled: June 4, 2001Publication date: April 18, 2002Applicant: Robert Bosch GmbHInventors: Wolfgang Samenfink, Rainer Ortmann