Patents by Inventor Uwe Lingener
Uwe Lingener 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: 10174735Abstract: An injection device for an internal combustion engine includes a fuel delivery pump and a high-pressure pump which are connected to one another via a low-pressure fuel line. A high-pressure accumulator is connected to the high-pressure pump. At least one injector is connected via a high-pressure fuel line to the high-pressure accumulator. The injection device also has at least one fuel return line which is connected to the high-pressure accumulator and/or to the at least one injector. The fuel return line issues into the low-pressure fuel line which connects the fuel delivery pump and the high-pressure pump to one another. At least one air bleed valve is arranged in the course of the low-pressure fuel line or on the high-pressure pump or on a filter housing.Type: GrantFiled: July 17, 2013Date of Patent: January 8, 2019Assignee: Continental Automotive GmbHInventors: Tobias Ritsch, Daniel Anetsberger, Christoph Klesse, Uwe Lingener
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Patent number: 9297328Abstract: A fuel injection system of an internal combustion engine includes a first and a second fuel pump, a leakage-prone volume flow regulating valve arranged in a fuel line between the first and the second fuel pump, and a control unit configured to actuate the first fuel pump as a function of a position of the leakage-prone volume flow regulating valve, such that the leakage-prone volume flow regulating valve serves as the sole actuating element for pressure regulation in the fuel injection system. An associated pressure regulating method is also disclosed.Type: GrantFiled: December 20, 2011Date of Patent: March 29, 2016Assignee: CONTINENTAL AUTOMOTIVE GMBHInventors: Christoph Klesse, Hans Riepl, Wolfgang Stapf, Tobias Ritsch, Uwe Lingener
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Publication number: 20150292430Abstract: The invention relates to a method for operating a fuel injection system for an internal combustion engine, having the following steps: filtering fuel using a fuel filter (20), pumping the fuel into a high-pressure volume (52) using a high-pressure pump (24), injecting fuel from the high-pressure volume (52) into a combustion chamber, wherein a first pressure is present in the high-pressure volume (52) at the beginning of the injection process, and heating the fuel filter by recirculating heated fuel. The method is characterized by the additional following steps: increasing the pressure in the high-pressure volume (52) to a second pressure, which is greater than the first pressure, and reducing the pressure in the high-pressure volume (52) from the second pressure to the first pressure, the increase and decrease of the pressure being carried out in the same internal combustion engine work cycle as the injection process.Type: ApplicationFiled: October 10, 2013Publication date: October 15, 2015Applicant: Continental Automotive GmbHInventors: Uwe Lingener, Tobias Ritsch
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Patent number: 9103307Abstract: A high-pressure pump arrangement (1) which can be especially used for a common rail injection system and has a pump member (2) that contains a low-pressure inlet (8) and a high-pressure outlet (9). A pressurization chamber (12) is provided, within which a plunger (3) is movably mounted and which is connected to the high-pressure outlet via a high-pressure valve (7). Furthermore, a suction chamber (6) that is fitted with a suction valve (5) is provided within the pump member. In addition, an intake duct (13) which extends between the low-pressure inlet and the suction chamber is provided within the pump member. The low-pressure inlet is connected to an electrically regulated pre-supply pump (10) which is permanently operated such that a low pressure is sure to be maintained in the suction chamber (6) of the pump.Type: GrantFiled: October 22, 2009Date of Patent: August 11, 2015Assignee: CONTINENTAL AUTOMOTIVE GMBHInventor: Uwe Lingener
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Publication number: 20150204293Abstract: An injection device for an internal combustion engine includes a fuel delivery pump and a high-pressure pump which are connected to one another via a low-pressure fuel line. A high-pressure accumulator is connected to the high-pressure pump. At least one injector is connected via a high-pressure fuel line to the high-pressure accumulator. The injection device also has at least one fuel return line which is connected to the high-pressure accumulator and/or to the at least one injector. The fuel return line issues into the low-pressure fuel line which connects the fuel delivery pump and the high-pressure pump to one another. At least one air bleed valve is arranged in the course of the low-pressure fuel line or on the high-pressure pump or on a filter housing.Type: ApplicationFiled: July 17, 2013Publication date: July 23, 2015Inventors: Tobias Ritsch, Daniel Anetsberger, Christoph Klesse, Uwe Lingener
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Publication number: 20130291836Abstract: A fuel injection system of an internal combustion engine includes a first and a second fuel pump, a leakage-prone volume flow regulating valve arranged in a fuel line between the first and the second fuel pump, and a control unit configured to actuate the first fuel pump as a function of a position of the leakage-prone volume flow regulating valve, such that the leakage-prone volume flow regulating valve serves as the sole actuating element for pressure regulation in the fuel injection system. An associated pressure regulating method is also disclosed.Type: ApplicationFiled: December 20, 2011Publication date: November 7, 2013Inventors: Christoph Klesse, Hans Riepl, Wolfgang Stapf, Tobias Ritsch, Uwe Lingener
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Patent number: 8365704Abstract: In a method or a device for forming an electric control signal for an injection impulse of a position-controlled fuel injector, particularly of a common-rail or pump-nozzle injection system, the course of the electric control signal can be selected freely in regard to the pulse edges (injection rate changes Q), the holding period (?t) and the injection rate (Q). This offers the advantage that the combustion process can be better optimized with respect to low emissions, low consumption and for meeting tightened legal regulations.Type: GrantFiled: June 26, 2008Date of Patent: February 5, 2013Assignee: Continental Automotive GmbHInventors: Jörg Beilharz, Uwe Lingener, Andreas Pfeifer, Richard Pirkl, Harald Schmidt, Klaus Wenzlawski, Hans-Jörg Wiehoff
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Patent number: 8312862Abstract: An injection system for an internal combustion engine has a prefeed pump for feeding fuel from a fuel tank, a high-pressure pump, which is situated downstream of the prefeed pump, for feeding the fuel into at least two injectors, a fuel distributor which is situated downstream of the high-pressure pump and which is designed to distribute the fuel to the injectors, a pressure control or pressure limiting valve situated downstream of the high-pressure pump and by which the pressure to be produced in the fuel distributor can be adjusted or limited, and a pressure sensor for determining a pressure downstream of the high-pressure pump and upstream of the pressure control or pressure limiting valve, wherein the pressure sensor, the pressure control or pressure limiting valve and the fuel distributor are formed in a high-pressure module, and the high-pressure module is formed as a structural unit with the high-pressure pump.Type: GrantFiled: August 1, 2008Date of Patent: November 20, 2012Assignee: Continental Automotive GmbHInventors: Christoph Klesse, Uwe Lingener
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Publication number: 20110223040Abstract: A high-pressure pump arrangement (1) which can be especially used for a common rail injection system and has a pump member (2) that contains a low-pressure inlet (8) and a high-pressure outlet (9). A pressurization chamber (12) is provided, within which a plunger (3) is movably mounted and which is connected to the high-pressure outlet via a high-pressure valve (7). Furthermore, a suction chamber (6) that is fitted with a suction valve (5) is provided within the pump member. In addition, an intake duct (13) which extends between the low-pressure inlet and the suction chamber is provided within the pump member. The low-pressure inlet is connected to an electrically regulated pre-supply pump (10) which is permanently operated such that a low pressure is sure to be maintained in the suction chamber (6) of the pump.Type: ApplicationFiled: October 22, 2009Publication date: September 15, 2011Inventor: Uwe Lingener
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Publication number: 20110126805Abstract: An injection system for an internal combustion engine has a prefeed pump for feeding fuel from a fuel tank, a high-pressure pump, which is situated downstream of the prefeed pump, for feeding the fuel into at least two injectors, a fuel distributor which is situated downstream of the high-pressure pump and which is designed to distribute the fuel to the injectors, a pressure control or pressure limiting valve situated downstream of the high-pressure pump and by which the pressure to be produced in the fuel distributor can be adjusted or limited, and a pressure sensor for determining a pressure downstream of the high-pressure pump and upstream of the pressure control or pressure limiting valve, wherein the pressure sensor, the pressure control or pressure limiting valve and the fuel distributor are formed in a high-pressure module, and the high-pressure module is formed as a structural unit with the high-pressure pump.Type: ApplicationFiled: August 1, 2008Publication date: June 2, 2011Inventors: Christoph Klesse, Uwe Lingener
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Publication number: 20100288238Abstract: In a method or a device for forming an electric control signal for an injection impulse of a position-controlled fuel injector, particularly of a common-rail or pump-nozzle injection system, he course of the electric control signal can be selected freely in regard to the pulse edges (injection rate changes Q), the holding period (?t) and the injection rate (Q). This offers the advantage that the combustion process can be better optimized with respect to low emissions, low consumption and for meeting tightened legal regulations.Type: ApplicationFiled: June 26, 2008Publication date: November 18, 2010Inventors: Jörg Beilharz, Uwe Lingener, Andreas Pfeifer, Richard Pirkl, Harald Schmidt, Klaus Wenzlawski, Hans-Jörg Wiehoff
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Patent number: 6868833Abstract: The invention relates to a method for determining the injection time of the injection system of an internal combustion engine, comprising the following steps: detecting a crankshaft signal that indicates the relative position of the crankshaft, determining the injection time on the basis of said crankshaft signal, detecting the phase angle of the crankshaft, synchronizing the calculated injection time on the basis of the phase position of the crankshaft, said phase position of the crankshaft being determined on the basis of the crankshaft signal.Type: GrantFiled: March 4, 2003Date of Patent: March 22, 2005Assignee: Siemens AktiengesellschaftInventors: Arno Friedrich, Uwe Lingener
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Patent number: 6854455Abstract: A rotation angle detector for detecting the angular position of a shaft, i.e. a camshaft or a camshaft of an internal combustion engine, includes a rotatable detector wheel coupled to the shaft. Markings of a first type are distributed along a periphery of the detector wheel and are detectable by a sensor for determining a relative rational angle. Markings of a second type are also distributed over the periphery of the detector wheel. The markings of the second type are distinguishable from each other for determining an absolute rotational angle of the shaft or for determining selection of a combustion chamber for injection.Type: GrantFiled: September 14, 2001Date of Patent: February 15, 2005Assignee: Siemens AktiengesellschaftInventor: Uwe Lingener
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Publication number: 20040094130Abstract: A rotation angle detector for detecting the angular position of a shaft, i.e. a camshaft or a camshaft of an internal combustion engine, includes a rotatable detector wheel coupled to the shaft. Markings of a first type are distributed along a periphery of the detector wheel and are detectable by a sensor for determining a relative rational angle. Markings of a second type are also distributed over the periphery of the detector wheel. The markings of the second type are distinguishable from each other for determining an absolute rotational angle of the shaft or for determining selection of a combustion chamber for injection.Type: ApplicationFiled: March 28, 2003Publication date: May 20, 2004Inventor: Uwe Lingener
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Publication number: 20030196643Abstract: The invention relates to a method for determining the injection time of the injection system of an internal combustion engine, comprising the following steps: detecting a crankshaft signal that indicates the relative position of the crankshaft, determining the injection time on the basis of said crankshaft signal, detecting the phase angle of the crankshaft, synchronizing the calculated injection time on the basis of the phase position of the crankshaft, said phase position of the crankshaft being determined on the basis of the crankshaft signal.Type: ApplicationFiled: March 4, 2003Publication date: October 23, 2003Inventors: Arno Friedrich, Uwe Lingener