Patents by Inventor Steffen Meyer-Salfeld
Steffen Meyer-Salfeld 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: 11371531Abstract: Compressor for charging a combustion engine, comprising a compressor housing (1) with a volute (2), a compressor wheel (3) being arranged in the compressor housing (1), the compressor wheel (3) turning about an axis (A) and transporting gas into the volute (2), and an inlet channel (4), at least an end portion of the inlet channel (4) being oriented in the direction of the axis (A) in order to direct gas towards the compressor wheel in the axial direction, wherein an exhaust gas channel (5) terminates into the inlet channel (4) upstream of the compressor wheel (3), and wherein the exhaust gas channel (5) can be shut off by means of a valve (6), wherein a housing (8) of a driving device (7) of the valve (6) is integrally formed with the compressor housing (1).Type: GrantFiled: March 13, 2020Date of Patent: June 28, 2022Assignee: BorgWarner Inc.Inventors: Steffen Meyer-Salfeld, Rolf Sauerstein, Iago Gonzalez
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Publication number: 20200291958Abstract: Compressor for charging a combustion engine, comprising a compressor housing (1) with a volute (2), a compressor wheel (3) being arranged in the compressor housing (1), the compressor wheel (3) turning about an axis (A) and transporting gas into the volute (2), and an inlet channel (4), at least an end portion of the inlet channel (4) being oriented in the direction of the axis (A) in order to direct gas towards the compressor wheel in the axial direction, wherein an exhaust gas channel (5) terminates into the inlet channel (4) upstream of the compressor wheel (3), and wherein the exhaust gas channel (5) can be shut off by means of a valve (6), wherein a housing (8) of a driving device (7) of the valve (6) is integrally formed with the compressor housing (1).Type: ApplicationFiled: March 13, 2020Publication date: September 17, 2020Inventors: Steffen MEYER-SALFELD, Rolf SAUERSTEIN, Iago GONZALEZ
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Publication number: 20190264590Abstract: Method for controlling the supply of oil to an internal combustion engine, comprising a procedure for detecting a potentially dangerous condition for the correct operation of an internal combustion engine (1). Said condition is the clogging of an oil filter (3) upstream of the engine (1) or the excessive presence of fuel in the lubricant oil. The detection procedure comprises the steps of: changing the flow rate of oil that transits through the filter (3) and that is processed by a pump (2) for lubricating the engine (1); detecting the time that passes between changing the oil flow rate and a detection of a pre-established variation in a parameter connected at least with the pressure downstream of said filter (3), said variation being determined by said change of the flow rate, said filter (3) being placed upstream of the engine (1); comparing said time with pre-established values.Type: ApplicationFiled: October 25, 2017Publication date: August 29, 2019Inventors: Alessandro Fauda, Leonardo Cadeddu, Steffen Meyer-Salfeld
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Patent number: 9567932Abstract: In a method for operating a valve, one valve element of the valve being able to be moved from a first position into a second position by activating an electrically actuatable actuator, the actuator is activated at least once in a first time interval, and is thereafter not activated in a second time interval, and a signal characterizing a strike of the valve element at the first position is ascertained at electrical terminals of the actuator. During the process, an activation energy of the actuator is gradually modified, and a threshold value of the activation energy at which the valve element is just able or is just no longer able to lift is ascertained.Type: GrantFiled: May 14, 2013Date of Patent: February 14, 2017Assignee: Robert Bosch GmbHInventors: Andreas Bartsch, Rene Zieher, Steffen Meyer-Salfeld
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Patent number: 9328710Abstract: The invention proposes a fuel delivery device for a fuel injection device of an internal combustion engine, having a delivery pump (10) and having at least one high-pressure pump (16). By means of the delivery pump (10), fuel from a storage container (12) is delivered to the suction side of the high-pressure pump (16), and fuel is delivered into a high-pressure region (18) by the high-pressure pump (16). The delivery pump (10) has an adjustable displacement volume, which means that a variable quantity of fuel can be conveyed at the same rotational speed.Type: GrantFiled: June 9, 2011Date of Patent: May 3, 2016Assignee: Robert Bosch GmbHInventors: Jost Krauss, Guenter Veit, Andreas Sommerer, Steffen Meyer-Salfeld
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Patent number: 9284904Abstract: A method for monitoring a fuel pressure in a fuel injection system of an internal combustion engine. A setpoint fuel pressure is initially set in the fuel injection system. Next, a first fuel injection and a subsequent second fuel injection are executed at a time interval shorter than a decay time of a pressure wave in the fuel injection system, triggerable by the first fuel injection. In an additional step, a monitored fuel injection quantity, which is injected via the second fuel injection, is ascertained. An action is executed if the monitored fuel injection quantity differs from a setpoint fuel injection quantity, which is predefinable for the setpoint fuel pressure, by more than a limiting value. The invention also relates to a computer program product for executing the method and to a device for monitoring a fuel pressure in a fuel injection system of an internal combustion engine.Type: GrantFiled: October 12, 2010Date of Patent: March 15, 2016Assignee: ROBERT BOSCH GMBHInventors: Stephan Topp, Rainer Peck, Rene Zieher, Christian Kriechbaum, Steffen Meyer-Salfeld
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Publication number: 20150167571Abstract: In a method for operating a valve, one valve element of the valve being able to be moved from a first position into a second position by activating an electrically actuatable actuator, the actuator is activated at least once in a first time interval, and is thereafter not activated in a second time interval, and a signal characterizing a strike of the valve element at the first position is ascertained at electrical terminals of the actuator. During the process, an activation energy of the actuator is gradually modified, and a threshold value of the activation energy at which the valve element is just able or is just no longer able to lift is ascertained.Type: ApplicationFiled: May 14, 2013Publication date: June 18, 2015Applicant: Robert Bosch GmbHInventors: Andreas Bartsch, Rene Zieher, Steffen Meyer-Salfeld
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Publication number: 20140137834Abstract: The invention relates to a lubrication system of an internal combustion engine (2), wherein lubricant is conveyed by means of at least one lubricant pump (8) from a reservoir (12) to lubrication points within the internal combustion engine (2) via a hydraulic connection (10). A lubricant store (14) is arranged in the hydraulic connection (10) between the lubricant pump (8) and the internal combustion engine (2). The invention further relates to an internal combustion engine (2) having said lubrication system and to a method for operating the lubrication system, wherein the internal combustion engine (2) is lubricated by lubricant from the lubricant store (14) in the event of high load demand.Type: ApplicationFiled: June 29, 2012Publication date: May 22, 2014Applicant: ROBERT BOSCH GMBHInventor: Steffen Meyer-Salfeld
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Patent number: 8554444Abstract: Described is a method for operating an internal combustion engine (1), in which method at least one parameter of the exhaust gas flowing in an exhaust-gas duct (10) is detected by at least one exhaust-gas probe (30; 32), wherein the internal combustion engine (1) is at least temporarily turned over by a starting device (3), during which an injection and combustion of fuel does not take place, and during and/or after which the exhaust-gas probe (30; 32) is adjusted.Type: GrantFiled: April 13, 2011Date of Patent: October 8, 2013Assignee: Robert Bosch GmbHInventors: Oliver Hasslacher, Rainer Peck, Christian Kriechbaum, Michael Schenk, Haris Delic, Stefan Motz, Steffen Meyer-Salfeld, Micha Muenzenmay, Bjoern Alexander Schuetz, Horst Mueller, Harry-Alexander Kempf, Ruediger Schaller
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Publication number: 20130112174Abstract: The invention proposes a fuel delivery device for a fuel injection device of an internal combustion engine, having a delivery pump (10) and having at least one high-pressure pump (16). By means of the delivery pump (10), fuel from a storage container (12) is delivered to the suction side of the high-pressure pump (16), and fuel is delivered into a high-pressure region (18) by the high-pressure pump (16). The delivery pump (10) has an adjustable displacement volume, which means that a variable quantity of fuel can be conveyed at the same rotational speed.Type: ApplicationFiled: June 9, 2011Publication date: May 9, 2013Applicant: ROBERT BOSCH GMBHInventors: Jost Krauss, Guenter Veit, Andreas Sommerer, Steffen Meyer-Salfeld
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Publication number: 20120283934Abstract: A method for monitoring a fuel pressure in a fuel injection system of an internal combustion engine. A setpoint fuel pressure is initially set in the fuel injection system. Next, a first fuel injection and a subsequent second fuel injection are executed at a time interval shorter than a decay time of a pressure wave in the fuel injection system, triggerable by the first fuel injection. In an additional step, a monitored fuel injection quantity, which is injected via the second fuel injection, is ascertained. An action is executed if the monitored fuel injection quantity differs from a setpoint fuel injection quantity, which is predefinable for the setpoint fuel pressure, by more than a limiting value. The invention also relates to a computer program product for executing the method and to a device for monitoring a fuel pressure in a fuel injection system of an internal combustion engine.Type: ApplicationFiled: October 12, 2010Publication date: November 8, 2012Inventors: Stephan Topp, Rainer Peck, Rene Zieher, Christian Kriechbaum, Steffen Meyer-Salfeld
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Patent number: 8290687Abstract: A method for determining a fuel mass of a single injection that has been injected into at least one combustion chamber of a combustion engine with at least one injection under high pressure. The method includes determining a correction variable for the single injection with the aid of a comparison of a measure for the actual amount of the injected fuel of at least one test injection, which takes place due to a measure for a default nominal amount of a desired single injection, and a measure for the nominal amount of the test injection. The method additionally includes executing a plurality of timely directly successive test injections.Type: GrantFiled: July 22, 2009Date of Patent: October 16, 2012Assignee: Robert Bosch GmbHInventors: Stephan Olbrich, Wolfgang Beuer, Andreas Sommerer, Steffen Meyer-Salfeld
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Publication number: 20110257863Abstract: Described is a method for operating an internal combustion engine (1), in which method at least one parameter of the exhaust gas flowing in an exhaust-gas duct (10) is detected by at least one exhaust-gas probe (30; 32), wherein the internal combustion engine (1) is at least temporarily turned over by a starting device (3), during which an injection and combustion of fuel does not take place, and during and/or after which the exhaust-gas probe (30; 32) is adjusted.Type: ApplicationFiled: April 13, 2011Publication date: October 20, 2011Applicant: ROBERT BOSCH GMBHInventors: Oliver Hasslacher, Rainer Peck, Christian Kriechbaum, Michael Schenk, Haris Delic, Stefan Motz, Steffen Meyer-Salfeld, Micha Muenzenmay, Bjoern Alexander Schuetz, Horst Mueller, Harry-Alexander Kempf, Ruediger Schaller
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Patent number: 7991538Abstract: In a fuel system of an internal combustion engine, the fuel quantity injected into a combustion chamber is a function of an activation period, during which a fuel injection device is activated. A pressure sensor detects the pressure in the fuel rail and provides a signal. The pressure in the fuel rail may be regulated to a setpoint pressure using a setting unit and employing the signal provided by the pressure sensor.Type: GrantFiled: December 19, 2008Date of Patent: August 2, 2011Assignee: Robert Bosch GmbHInventors: Stephan Olbrich, Rainer Peck, Christian Kriechbaum, Michael Schenk, Steffen Meyer-Salfeld, Rene Zieher, Markus Viereck
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Publication number: 20100030454Abstract: A method for determining a fuel mass of a single injection that has been injected into at least one combustion chamber of a combustion engine with at least one injection under high pressure. The method includes determining a correction variable for the single injection with the aid of a comparison of a measure for the actual amount of the injected fuel of at least one test injection, which takes place due to a measure for a default nominal amount of a desired single injection, and a measure for the nominal amount of the test injection. The method additionally includes executing a plurality of timely directly successive test injections.Type: ApplicationFiled: July 22, 2009Publication date: February 4, 2010Applicant: Robert Bosch GmbHInventors: Stephan Olbrich, Wolfgang Beuer, Andreas Sommerer, Steffen Meyer-Salfeld
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Publication number: 20090164102Abstract: In a fuel system of an internal combustion engine, the fuel quantity injected into a combustion chamber is a function of an activation period, during which a fuel injection device is activated. A pressure sensor detects the pressure in the fuel rail and provides a signal. The pressure in the fuel rail may be regulated to a setpoint pressure using a setting unit and employing the signal provided by the pressure sensor.Type: ApplicationFiled: December 19, 2008Publication date: June 25, 2009Inventors: Stephan OLBRICH, Rainer Peck, Christian Kriechbaum, Michael Schenk, Steffen Meyer-Salfeld, Rene Zieher, Markus Viereck