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).

  • Patent number: 11371531
    Abstract: 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: Grant
    Filed: March 13, 2020
    Date of Patent: June 28, 2022
    Assignee: BorgWarner Inc.
    Inventors: Steffen Meyer-Salfeld, Rolf Sauerstein, Iago Gonzalez
  • Publication number: 20200291958
    Abstract: 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: Application
    Filed: March 13, 2020
    Publication date: September 17, 2020
    Inventors: Steffen MEYER-SALFELD, Rolf SAUERSTEIN, Iago GONZALEZ
  • Publication number: 20190264590
    Abstract: 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: Application
    Filed: October 25, 2017
    Publication date: August 29, 2019
    Inventors: Alessandro Fauda, Leonardo Cadeddu, Steffen Meyer-Salfeld
  • Patent number: 9567932
    Abstract: 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: Grant
    Filed: May 14, 2013
    Date of Patent: February 14, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Bartsch, Rene Zieher, Steffen Meyer-Salfeld
  • Patent number: 9328710
    Abstract: 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: Grant
    Filed: June 9, 2011
    Date of Patent: May 3, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Jost Krauss, Guenter Veit, Andreas Sommerer, Steffen Meyer-Salfeld
  • Patent number: 9284904
    Abstract: 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: Grant
    Filed: October 12, 2010
    Date of Patent: March 15, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Stephan Topp, Rainer Peck, Rene Zieher, Christian Kriechbaum, Steffen Meyer-Salfeld
  • Publication number: 20150167571
    Abstract: 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: Application
    Filed: May 14, 2013
    Publication date: June 18, 2015
    Applicant: Robert Bosch GmbH
    Inventors: Andreas Bartsch, Rene Zieher, Steffen Meyer-Salfeld
  • Publication number: 20140137834
    Abstract: 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: Application
    Filed: June 29, 2012
    Publication date: May 22, 2014
    Applicant: ROBERT BOSCH GMBH
    Inventor: Steffen Meyer-Salfeld
  • Patent number: 8554444
    Abstract: 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: Grant
    Filed: April 13, 2011
    Date of Patent: October 8, 2013
    Assignee: Robert Bosch GmbH
    Inventors: 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
  • Publication number: 20130112174
    Abstract: 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: Application
    Filed: June 9, 2011
    Publication date: May 9, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventors: Jost Krauss, Guenter Veit, Andreas Sommerer, Steffen Meyer-Salfeld
  • Publication number: 20120283934
    Abstract: 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: Application
    Filed: October 12, 2010
    Publication date: November 8, 2012
    Inventors: Stephan Topp, Rainer Peck, Rene Zieher, Christian Kriechbaum, Steffen Meyer-Salfeld
  • Patent number: 8290687
    Abstract: 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: Grant
    Filed: July 22, 2009
    Date of Patent: October 16, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Stephan Olbrich, Wolfgang Beuer, Andreas Sommerer, Steffen Meyer-Salfeld
  • Publication number: 20110257863
    Abstract: 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: Application
    Filed: April 13, 2011
    Publication date: October 20, 2011
    Applicant: ROBERT BOSCH GMBH
    Inventors: 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
  • Patent number: 7991538
    Abstract: 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: Grant
    Filed: December 19, 2008
    Date of Patent: August 2, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Stephan Olbrich, Rainer Peck, Christian Kriechbaum, Michael Schenk, Steffen Meyer-Salfeld, Rene Zieher, Markus Viereck
  • Publication number: 20100030454
    Abstract: 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: Application
    Filed: July 22, 2009
    Publication date: February 4, 2010
    Applicant: Robert Bosch GmbH
    Inventors: Stephan Olbrich, Wolfgang Beuer, Andreas Sommerer, Steffen Meyer-Salfeld
  • Publication number: 20090164102
    Abstract: 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: Application
    Filed: December 19, 2008
    Publication date: June 25, 2009
    Inventors: Stephan OLBRICH, Rainer Peck, Christian Kriechbaum, Michael Schenk, Steffen Meyer-Salfeld, Rene Zieher, Markus Viereck