Patents by Inventor Matthias GROTZ

Matthias GROTZ 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: 20240035412
    Abstract: A pre-chamber component for an internal combustion engine includes a chamber for accommodating an air-fuel-mixture to be ignited, wherein the pre-chamber component includes a first opening into the chamber for arranging an ignition device, in particular a spark plug, and a second opening for introducing the air-fuel-mixture in the form of a mixture flow into the chamber. The pre-chamber component includes a mixture flow guiding device, which is shaped such that the mixture flow of the air-fuel-mixture in the chamber is oriented substantially transversely with respect to a longitudinal axis from the second opening of the chamber to at least a part of the chamber adjacent to the first opening and/or in the form of a turbulent flow.
    Type: Application
    Filed: August 28, 2020
    Publication date: February 1, 2024
    Inventors: Matthias Grotz, Jochen Fuchs, Robert Boewing, Andreas Birgel
  • Publication number: 20230417204
    Abstract: Piston for an internal combustion engine, preferably a gas engine comprising a pre-chamber, comprising a piston crown limiting the piston on a side facing a cylinder head when the piston is arranged inside an internal combustion engine, wherein the piston crown comprises at least one piston bowl which has a lower surface level than a radial edge region of the piston crown, wherein the piston bowl comprises a depth (d), which is defined by the distance between the radial edge region and the lower surface level of the piston bowl measured parallel to central elevation which has a height (H), wherein the height (H) of the central elevation equals the depth (d) of the piston bowl plus/minus 50%, preferably 20%, of the depth (d) of the piston bowl.
    Type: Application
    Filed: November 27, 2020
    Publication date: December 28, 2023
    Inventors: Matthias Grotz, Jochen Fuchs, Robert Boewing, Andreas Birgel
  • Patent number: 11680513
    Abstract: A cylinder head for an internal combustion engine comprising a prechamber (3), wherein a prechamber gas valve (5) is fitted into a cavity in the cylinder head (2) and the prechamber gas valve (5) is connected to the prechamber (3) by way of a flow transfer passage (10), wherein the flow transfer passage (10) has a first portion (8) adjoining the prechamber gas valve (5) and a second portion (1) into which the first portion (8) opens, wherein the second portion (1) extends at least around a part of a periphery of the prechamber (3), wherein the second portion (1) has an uninterrupted peripheral surface apart from that opening (7) with which it passes into the prechamber (3).
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: June 20, 2023
    Assignee: Innio Jenbacher GmbH & Co OG
    Inventors: Matthias Grotz, Herbert Schaumberger, Nikolaus Spyra, Thomas Fankhauser, Isabelle Bec
  • Patent number: 11680511
    Abstract: A cylinder head for an internal combustion engine comprising a prechamber (3), wherein a prechamber gas valve (5) is fitted into a cavity of the cylinder head (2) and the prechamber gas valve (5) is connected to the prechamber (3) by way of a flow transfer passage (10), wherein the flow transfer passage (10) for a given cross-sectional area immediately downstream of the prechamber gas valve (5) is of such a length that in operation of the cylinder head (2) mounted in an internal combustion engine in a compression stroke of the combustion process propellant gas which flow out of the prechamber gas valve (5) forms a gas cushion at least in a first portion (8) of the flow transfer passage (10), that adjoins the prechamber gas valve (5).
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: June 20, 2023
    Assignee: Innio Jenbacher GmbH & Co OG
    Inventors: Nikolaus Spyra, Herbert Schaumberger, Matthias Grotz, Isabelle Bec, Thomas Fankhauser
  • Publication number: 20230175453
    Abstract: An internal combustion engine with at least one combustion chamber, at least one fuel delivery line for the delivery of fuel to at least one combustion chamber, and at least one differential pressure control valve for controlling the pressure in the at least one fuel delivery line. The at least one differential pressure control valve is configured to perform a valve opening or valve closing movement based on a pressure difference between the at least one fuel delivery line and a reference volume having a reference pressure. The internal combustion engine further includes at least one pressure relief valve, separate from the at least one differential pressure control valve, and configured to open to cause a pressure relief in the reference volume and a decrease in the reference pressure if a drop occurs in the power to be performed by the internal combustion engine.
    Type: Application
    Filed: January 30, 2023
    Publication date: June 8, 2023
    Inventors: Alexander Mairhofer, Johannes Huber, Josef Thalhauser, Matthias Grotz, Michael Franz Litzlfellner, Alexander Gasteiger, Michael Perktold
  • Patent number: 11572847
    Abstract: An internal combustion engine with at least one combustion chamber, at least one fuel delivery line for the delivery of fuel to at least one combustion chamber, and at least one differential pressure control valve for controlling the pressure in the at least one fuel delivery line. The at least one differential pressure control valve is configured to perform a valve opening or valve closing movement based on a pressure difference between the at least one fuel delivery line and a reference volume having a reference pressure. The internal combustion engine further includes at least one pressure relief valve, separate from the at least one differential pressure control valve, and configured to open to cause a pressure relief in the reference volume and a decrease in the reference pressure if a drop occurs in the power to be performed by the internal combustion engine.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: February 7, 2023
    Assignee: Innio Jenbacher GmbH & Co OG
    Inventors: Alexander Mairhofer, Johannes Huber, Josef Thalhauser, Matthias Grotz, Michael Franz Litzlfellner, Alexander Gasteiger, Michael Perktold
  • Publication number: 20220154665
    Abstract: An internal combustion engine with at least one combustion chamber, at least one fuel delivery line for the delivery of fuel to at least one combustion chamber, and at least one differential pressure control valve for controlling the pressure in the at least one fuel delivery line. The at least one differential pressure control valve is configured to perform a valve opening or valve closing movement based on a pressure difference between the at least one fuel delivery line and a reference volume having a reference pressure. The internal combustion engine further includes at least one pressure relief valve, separate from the at least one differential pressure control valve, and configured to open to cause a pressure relief in the reference volume and a decrease in the reference pressure if a drop occurs in the power to be performed by the internal combustion engine.
    Type: Application
    Filed: March 13, 2019
    Publication date: May 19, 2022
    Inventors: Alexander Mairhofer, Johannes Huber, Josef Thalhauser, Matthias Grotz, Michael Franz Litzlfellner, Alexander Gasteiger, Michael Perktold
  • Publication number: 20220074341
    Abstract: A cylinder head for an internal combustion engine comprising a prechamber (3), wherein a prechamber gas valve (5) is fitted into a cavity of the cylinder head (2) and the prechamber gas valve (5) is connected to the prechamber (3) by way of a flow transfer passage (10), wherein the flow transfer passage (10) for a given cross-sectional area immediately downstream of the prechamber gas valve (5) is of such a length that in operation of the cylinder head (2) mounted in an internal combustion engine in a compression stroke of the combustion process propellant gas which flow out of the prechamber gas valve (5) forms a gas cushion at least in a first portion (8) of the flow transfer passage (10), that adjoins the prechamber gas valve (5).
    Type: Application
    Filed: December 19, 2019
    Publication date: March 10, 2022
    Inventors: Nikolaus Spyra, Herbert Schaumberger, Matthias Grotz, Isabella Bec, Thomas Fankhauser
  • Publication number: 20220056836
    Abstract: A cylinder head for an internal combustion engine comprising a prechamber (3), wherein a prechamber gas valve (5) is fitted into a cavity in the cylinder head (2) and the prechamber gas valve (5) is connected to the prechamber (3) by way of a flow transfer passage (10), wherein the flow transfer passage (10) has a first portion (8) adjoining the prechamber gas valve (5) and a second portion (1) into which the first portion (8) opens, wherein the second portion (1) extends at least around a part of a periphery of the prechamber (3), wherein the second portion (1) has an uninterrupted peripheral surface apart from that opening (7) with which it passes into the prechamber (3).
    Type: Application
    Filed: December 21, 2018
    Publication date: February 24, 2022
    Inventors: Matthias Grotz, Herbert Schaumberger, Nikolaus Spyra, Thomas Fankhauser, Isabelle Bec
  • Patent number: 10753273
    Abstract: An internal combustion engine, in particular a gas Otto-cycle engine, is provided. The internal combustion engine comprises a plurality of cylinders. Each cylinder is provided with a pre-chamber, and a pre-chamber gas supply conduit through which the pre-chamber can be supplied with fuel gas. The fuel gas is supplied to the pre-chambers by way of a pre-chamber gas valve associated with the respective pre-chamber. Also, an aperture is arranged between the pre-chamber gas supply conduit and the pre-chamber gas valve. At least one aperture associated with a pre-chamber gas valve has a through-flow coefficient such that pressure occurring at a maximum between combustion cycles in a volume between the pre-chamber gas valve and the aperture does not reach a pressure prevailing in the pre-chamber gas supply conduit.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: August 25, 2020
    Assignee: INNIO JENBACHER GMBH & CO OG
    Inventors: Andreas Wimmer, Peter Christiner, Claudia Schubert-Zallinger, Matthias Grotz
  • Publication number: 20160169085
    Abstract: An internal combustion engine, in particular a gas Otto-cycle engine, comprising a plurality of cylinders, wherein each cylinder is provided with a respective pre-chamber, a pre-chamber gas supply conduit through which the pre-chambers can be supplied with fuel gas by way of a pre-chamber gas valve associated with the respective pre-chamber, wherein a respective aperture is arranged between the pre-chamber gas supply conduit and the pre-chamber gas valve, wherein at least one and preferably all of the apertures associated with a pre-chamber gas valve has such a small through-flow coefficient that the pressure which occurs at a maximum between the combustion cycles in the volume between the pre-chamber gas valve and the aperture does not reach the pressure prevailing in the pre-chamber gas supply conduit.
    Type: Application
    Filed: November 18, 2015
    Publication date: June 16, 2016
    Inventors: Andreas WIMMER, Peter CHRISTINER, Claudia SCHUBERT-ZALLINGER, Matthias GROTZ