Patents by Inventor Robby GERBETH

Robby GERBETH 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).

  • Publication number: 20220145821
    Abstract: A method for monitoring a fuel supply system in an internal combustion engine includes the steps of: recording a first pressure value in the fuel supply system in a region of the fuel supply system associated with a pre-filter and upstream of a low pressure pump; recording a second pressure value in the fuel supply system downstream of the low pressure pump in a region of the fuel supply system associated with a primary filter; monitoring the first pressure value and the second pressure value for an error state of the fuel supply system; and recognizing the error state only if the error state is plausible on a basis of both the first pressure value and the second pressure value.
    Type: Application
    Filed: January 28, 2022
    Publication date: May 12, 2022
    Applicant: MTU Friedrichshafen GmbH
    Inventors: Thomas Kottke, Robby Gerbeth, Thilo Kreeb, Martin Hähnlen
  • Patent number: 11199168
    Abstract: A distributor apparatus of a common rail system for an internal combustion engine. The distributor apparatus is designed with at least one distributor device having a high-pressure line for fuel and a plurality of feed lines branching off from the high-pressure line within the distributor device. Each feed line leads to an individual accumulator and an injector. The feed line is associated with a restriction device and a discharge bore, which is designed to cooperate with a pressure-measuring device and which is arranged downstream of the restriction device, such that the restriction device is arranged in the feed line and the discharge bore, arranged in the distributor device, is connected to the feed line downstream of the restriction device.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: December 14, 2021
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Robby Gerbeth, Oscar Blasco, Hubert Lugger, Frank Mlicki, Thilo Kreeb
  • Publication number: 20200392927
    Abstract: A distributor apparatus of a common rail system for an internal combustion engine. The distributor apparatus is designed with at least one distributor device having a high-pressure line for fuel and a plurality of feed lines branching off from the high-pressure line within the distributor device. Each feed line leads to an individual accumulator and an injector. The feed line is associated with a restriction device and a discharge bore, which is designed to cooperate with a pressure-measuring device and which is arranged downstream of the restriction device, such that the restriction device is arranged in the feed line and the discharge bore, arranged in the distributor device, is connected to the feed line downstream of the restriction device.
    Type: Application
    Filed: September 1, 2020
    Publication date: December 17, 2020
    Applicant: MTU Friedrichshafen GmbH
    Inventors: Robby Gerbeth, Oscar Blasco, Hubert Lugger, Frank Mlicki, Thilo Kreeb
  • Patent number: 10570861
    Abstract: In a multi-fuel injector for an internal combustion engine, including a housing with a nozzle needle movably disposed therein between a closed position in which the nozzle needle blocks a discharge of fuel from a collection chamber, to which a first fuel is supplied, above the nozzle needle, a control chamber is arranged to which a high pressure second fuel is supplied which acts on the nozzle needle to bias it into a closed position, and a control valve is provided in a pressure release line extending from the control chamber for a controlled release of the second fuel from the control chamber by opening the control valve so as to relief the closing pressure on the nozzle needle in order to permit lifting of the nozzle needle from the closed position for discharging the fuel from the collection chamber.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: February 25, 2020
    Assignee: MTU FRIEDRICHSHAFEN GMBH
    Inventors: Joachim Schwarte, Samuel Vogel, Robby Gerbeth
  • Patent number: 10107223
    Abstract: A method for determining at least one injection parameter of an internal combustion engine, including the following steps: detecting a pressure profile in a time-resolved manner in an injection system of an internal combustion engine at least during an injection; providing a reference pressure profile for at least one operating point of the injection system; comparing the detected pressure profile with the reference pressure profile, and ascertaining at least one injection parameter as a function of the comparison.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: October 23, 2018
    Assignee: MTU FRIEDRICHSHAFEN GMBH
    Inventors: Michael Walder, Robby Gerbeth
  • Patent number: 9909524
    Abstract: A method for operating an internal combustion engine having a motor with cylinder and an injection system having a common rail and injectors for the cylinders. Each injector has an accumulator for holding fuel from the common rail. A multiple injection of fuel is performed during each working cycle of a cylinder, including injecting a first amount in a first injection and injecting a second amount in a second injection, and determining fuel pressure for the common rail and/or the accumulator. A fuel injection amount parameter is determined for the first injection; an individual accumulator pressure and/or a common rail pressure is determined for the second injection; and a fuel injection amount parameter is determined for the second injection. The individual accumulator pressure and/or the common rail pressure are/is considered for determining the injection amount parameter of the fuel for the second injection.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: March 6, 2018
    Assignee: MTU FRIEDRICHSHAFEN GMBH
    Inventors: Markus Gölz, Robby Gerbeth, Frank Mlicki, Michael Walder, Carsten Engler, Andreas Mehr, Christian Wolf
  • Patent number: 9909547
    Abstract: In a quantity limiting valve for a fuel injection system of an internal combustion engine including a cylinder with an inflow region and an outflow region separated by a piston axially movably disposed in the cylinder and a flow limiting fluid flow path extending along the piston between the inflow and outflow regions wherein the piston is biased with its front surface into contact with a stop element, the contact area between the front surface and the stop surface includes between the piston and the stop element a contact structure providing for an intermediate space which is in communication with the inflow region thereby to expose the front surface of the piston to the pressure of the fluid in the inflow region.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: March 6, 2018
    Assignee: MTU FRIEDRICHSHAFEN GMBH
    Inventors: Robby Gerbeth, Michael Walder, Andreas Mehr, Markus Staudt, Frank Mlicki
  • Publication number: 20170218898
    Abstract: In a multi-fuel injector for an internal combustion engine, including a housing with a nozzle needle movably disposed therein between a closed position in which the nozzle needle blocks a discharge of fuel from a collection chamber, to which a first fuel is supplied, above the nozzle needle, a control chamber is arranged to which a high pressure second fuel is supplied which acts on the nozzle needle to bias it into a closed position, and a control valve is provided in a pressure release line extending from the control chamber for a controlled release of the second fuel from the control chamber by opening the control valve so as to relief the closing pressure on the nozzle needle in order to permit lifting of the nozzle needle from the closed position for discharging the fuel from the collection chamber.
    Type: Application
    Filed: April 13, 2017
    Publication date: August 3, 2017
    Applicant: MTU FRIEDRICHSHAFEN GMBH
    Inventors: Joachim SCHWARTE, Samuel VOGEL, Robby GERBETH
  • Patent number: 9617962
    Abstract: Exemplary illustrations are provided of a common rail system for an internal combustion engine, having a rail for fuel and an injector for the purpose of injecting the fuel into a working space of the internal combustion engine, said injector having a fluid connection to said rail via a high-pressure conduit. The high-pressure conduit may have a high-pressure component with an individual reservoir, and the high-pressure conduit and/or the rail may have a pressure measurement device. The pressure measurement device may be coupled to a local logic and storage device of a decentralized, local electronic device which is designed for the purpose of locally analyzing and storing measurement data of the pressure measurement device, e.g., injector data and/or rail data, and the pressure measurement device is connected to the central electronic device via a bus, with the local logic and storage device connected between the same.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: April 11, 2017
    Assignee: MTU Friedrichschafen GmbH
    Inventors: Manuel Boog, Gerald Fast, Robby Gerbeth, Michael Walder, Ralf Speetzen, Jörg Remele
  • Publication number: 20160298570
    Abstract: A method for operating an internal combustion engine having a motor with cylinder and an injection system having a common rail and injectors for the cylinders. Each injector has an accumulator for holding fuel from the common rail. A multiple injection of fuel is performed during each working cycle of a cylinder, including injecting a first amount in a first injection and injecting a second amount in a second injection, and determining fuel pressure for the common rail and/or the accumulator. A fuel injection amount parameter is determined for the first injection; an individual accumulator pressure and/or a common rail pressure is determined for the second injection; and a fuel injection amount parameter is determined for the second injection. The individual accumulator pressure and/or the common rail pressure are/is considered for determining the injection amount parameter of the fuel for the second injection.
    Type: Application
    Filed: August 21, 2014
    Publication date: October 13, 2016
    Inventors: Markus GÖLZ, Robby GERBETH, Frank MLICKI, Michael WALDER, Carsten ENGLER, Andreas MEHR, Christian WOLF
  • Publication number: 20160153382
    Abstract: A method for determining at least one injection parameter of an internal combustion engine, including the following steps: detecting a pressure profile in a time-resolved manner in an injection system of an internal combustion engine at least during an injection; providing a reference pressure profile for at least one operating point of the injection system; comparing the detected pressure profile with the reference pressure profile, and ascertaining at least one injection parameter as a function of the comparison.
    Type: Application
    Filed: August 1, 2014
    Publication date: June 2, 2016
    Inventors: Michael WALDER, Robby GERBETH
  • Publication number: 20160138509
    Abstract: A method for determining a start of injection of an injector of an internal combustion engine, including the following steps: time-resolved detecting of an individual storage pressure curve in a measurement interval; determining a test injection start with the aid of the individual storage pressure curve; determining a tendency of the individual storage pressure curve in a predetermined test interval prior to the test injection start; correcting the individual storage pressure curve subject to the tendency; and determining a start of injection with the aid of the corrected individual storage pressure curve.
    Type: Application
    Filed: June 3, 2014
    Publication date: May 19, 2016
    Inventors: Michael WALDER, Andreas MEHR, Frank MLICKI, Markus STAUDT, Robby GERBETH
  • Publication number: 20160084210
    Abstract: In a quantity limiting valve for a fuel injection system of an internal combustion engine including a cylinder with an inflow region and an outflow region separated by a piston axially movably disposed in the cylinder and a flow limiting fluid flow path extending along the piston between the inflow and outflow regions wherein the piston is biased with its front surface into contact with a stop element, the contact area between the front surface and the stop surface includes between the piston and the stop element a contact structure providing for an intermediate space which is in communication with the inflow region thereby to expose the front surface of the piston to the pressure of the fluid in the inflow region.
    Type: Application
    Filed: December 7, 2015
    Publication date: March 24, 2016
    Applicant: MTU FRIEDRICHSHAFEN GMBH
    Inventors: Robby GERBETH, Michael WALDER, Andreas MEHR, Markus STAUDT, Frank MLICKI
  • Patent number: 9151195
    Abstract: A crankcase for an internal combustion engine, having a suction arrangement which is assigned to the crankcase and is configured for ventilating the crankcase of blow-by gas, in particular a gas/oil mixture, to produce a limited vacuum in the crankcase is disclosed. The crankcase has at least one dividing wall which is configured to feed blow-by gas and to separate oil. A ventilating housing part and a carrier housing part which is arranged above the ventilating housing part in included in the crankcase. The dividing wall is formed between the ventilating housing part and the carrier housing part and a suction arrangement is formed in the form of a suction jet pump which is configured for extracting oil from the dividing wall.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: October 6, 2015
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Mathias Stätter, Josef Walter Hausknecht, Robby Gerbeth
  • Publication number: 20140209065
    Abstract: Exemplary illustrations are provided of a common rail system for an internal combustion engine, having a rail for fuel and an injector for the purpose of injecting the fuel into a working space of the internal combustion engine, said injector having a fluid connection to said rail via a high-pressure conduit. The high-pressure conduit may have a high-pressure component with an individual reservoir, and the high-pressure conduit and/or the rail may have a pressure measurement device. The pressure measurement device may be coupled to a local logic and storage device of a decentralized, local electronic device which is designed for the purpose of locally analyzing and storing measurement data of the pressure measurement device, e.g., injector data and/or rail data, and the pressure measurement device is connected to the central electronic device via a bus, with the local logic and storage device connected between the same.
    Type: Application
    Filed: August 8, 2012
    Publication date: July 31, 2014
    Applicant: MTU Friedrichshafen GmbH
    Inventors: Manuel Boog, Gerald Fast, Robby Gerbeth, Michael Walder, Ralf Speetzen, Jörg Remele
  • Publication number: 20130276743
    Abstract: A crankcase for an internal combustion engine, having a suction arrangement which is assigned to the crankcase and is configured for ventilating the crankcase of blow-by gas, in particular a gas/oil mixture, to produce a limited vacuum in the crankcase is disclosed. The crankcase has at least one dividing wall which is configured to feed blow-by gas and to separate oil. A ventilating housing part and a carrier housing part which is arranged above the ventilating housing part in included in the crankcase. The dividing wall is formed between the ventilating housing part and the carrier housing part and a suction arrangement is formed in the form of a suction jet pump which is configured for extracting oil from the dividing wall.
    Type: Application
    Filed: October 21, 2011
    Publication date: October 24, 2013
    Applicant: MTU Friedrichshafen GmbH
    Inventors: Mathias Stätter, Josef Walter, Robby Gerbeth
  • Patent number: 8527181
    Abstract: A a method for automatically controlling an internal combustion engine, in which an individual accumulator pressure (pE) of a common rail system is detected in a measurement interval and stored; in which an evaluation window is determined for the stored individual accumulation pressure (pE), within which window an injection was brought about; in which, in a first step, both a representative injection start and a trial injection end are determined in this evaluation window as a function of the detected pressure values, and, in a second step, both a trial injection start and a representative injection end are determined in this evaluation window as a function of the detected pressure values; in which the representative injection start is checked for plausibility against the trial injection start; and in which the representative injection end is checked for plausibility against the trial injection end.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: September 3, 2013
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Michael Walder, Robby Gerbeth
  • Publication number: 20110130944
    Abstract: A a method for automatically controlling an internal combustion engine, in which an individual accumulator pressure (pE) of a common rail system is detected in a measurement interval and stored; in which an evaluation window is determined for the stored individual accumulation pressure (pE), within which window an injection was brought about; in which, in a first step, both a representative injection start and a trial injection end are determined in this evaluation window as a function of the detected pressure values, and, in a second step, both a trial injection start and a representative injection end are determined in this evaluation window as a function of the detected pressure values; in which the representative injection start is checked for plausibility against the trial injection start; and in which the representative injection end is checked for plausibility against the trial injection end.
    Type: Application
    Filed: November 30, 2010
    Publication date: June 2, 2011
    Applicant: MTU FRIEDRICHSHAFEN GMBH
    Inventors: Michael WALDER, Robby GERBETH
  • Publication number: 20100280743
    Abstract: An individual accumulator for a high-pressure component of a high-pressure fuel guide of a common rail fuel injection system. The individual accumulator is equipped with a pressure sensor, and the common rail fuel injection system is equipped with a source of high pressure and a fuel injector, which has a fluid connection with this source of high pressure via the high-pressure fuel guide, for injecting the fuel into a working chamber of an internal combustion engine. The pressure sensor is designed as a strain sensor.
    Type: Application
    Filed: May 3, 2010
    Publication date: November 4, 2010
    Applicant: MTU FRIEDRICHHAFEN GMBH
    Inventors: Marc HEHLE, Robby GERBETH, Joerg REMELE, Guenther SCHMIDT, Ralf SPEETZEN, Michael WALDER, Michael Willmann