Patents by Inventor Matthias Blankmeister

Matthias Blankmeister 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: 20220376480
    Abstract: A method for manufacturing a prechamber spark plug including an external thread and a cap including at least one through-opening. The method includes: providing the prechamber spark plug without a cap and including a cylindrical circumferential surface for the external thread. Mounting the cap, which includes at least one through-opening, in an arbitrary alignment at the prechamber spark plug, and creating the external thread at the circumferential surface in such a way that a thread start and/or a thread end of the external thread is aligned in relation to the through-opening at a predetermined position.
    Type: Application
    Filed: September 28, 2020
    Publication date: November 24, 2022
    Inventors: Matthias Budde, Matthias Blankmeister, Philipp Rottmann, Stephan Kaske, Ugur Yilmaz
  • Patent number: 11394178
    Abstract: A spark plug including a housing, an insulator, a center electrode, and a ground electrode situated at a combustion chamber-side end of the housing. The insulator has an insulator collar, an insulator base, and a transition area, which rests on a projection of the housing. A breathing space is configured at the combustion chamber-side end of the spark plug and is delimited by a section of the inner side of the housing and a section of the insulator base. The section of the insulator base has a rounding including a first leg length and a second leg length angled with respect to the first leg length, the first leg length extending between the intersecting point of the leg lengths with one another and a first end point of the rounding, and the second leg length extending between the intersecting point and a second end point of the rounding.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: July 19, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Felix Traub, Matthias Blankmeister, Sergej Subkow, Stephan Kaske
  • Publication number: 20220085578
    Abstract: A spark plug including a housing, an insulator, a center electrode, and a ground electrode situated at a combustion chamber-side end of the housing. The insulator has an insulator collar, an insulator base, and a transition area, which rests on a projection of the housing. A breathing space is configured at the combustion chamber-side end of the spark plug and is delimited by a section of the inner side of the housing and a section of the insulator base. The section of the insulator base has a rounding including a first leg length and a second leg length angled with respect to the first leg length, the first leg length extending between the intersecting point of the leg lengths with one another and a first end point of the rounding, and the second leg length extending between the intersecting point and a second end point of the rounding.
    Type: Application
    Filed: December 10, 2019
    Publication date: March 17, 2022
    Inventors: Felix Traub, Matthias Blankmeister, Sergej Subkow, Stephan Kaske
  • Patent number: 11183818
    Abstract: A prechamber spark plug for an internal combustion engine with the following features: a body with an external thread at its front end for screwing the spark plug into the engine; the external thread has a center line and begins with a thread start at the front end; the body has a passage in which an insulator is fastened and a center electrode protrudes from the front end of this insulator; at the front end of the body, a prechamber-forming cap is provided, which delimits a prechamber and shields the center electrode from a combustion chamber of the engine after the spark plug has been installed in the engine; the cap has at least one opening, which has a predefined orientation in relation to the thread start and is oriented obliquely to the center line of the external thread so as to permit a gas exchange between the prechamber and the space outside the prechamber.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: November 23, 2021
    Assignee: FEDERAL-MOGUL IGNITION GMBH
    Inventors: Werner Niessner, Matthias Blankmeister
  • Patent number: 10886710
    Abstract: A pre-chamber spark plug for an internal combustion engine having: a body with a passage in which an insulator is fastened and a center electrode protrudes; at least one ground electrode extending in a straight line forms a spark gap with the center electrode; a pre-chamber-forming cap which delimits a pre-chamber and shields the center and ground electrodes from a combustion chamber after the spark plug has been installed in the engine, wherein the cap has at least one opening which permits a gas exchange between the pre-chamber and the space outside the pre-chamber. The ground electrode includes a reinforcing component welded to an end surface of a supporting component, and the supporting component is either welded to an end surface of the body or is welded to a step that is formed on the end surface.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: January 5, 2021
    Assignee: FEDERAL-MOGUL IGNITION GMBH
    Inventors: Werner Niessner, Matthias Blankmeister
  • Patent number: 10658818
    Abstract: An internal combustion engine having: a housing with at least one cylinder and a pre-chamber spark plug; the cylinder has a piston that is able to move in the housing and delimits a combustion chamber contained in the housing; the combustion chamber has a compressed volume when the piston is at top dead center; the pre-chamber spark plug has a body, an external thread at its front end, a passage, an insulator positioned in the passage, a center electrode protruding from the front end of the insulator, and a pre-chamber-forming cap that is placed at the front end of the body and delimits a pre-chamber. The cap shields the center electrode from the combustion chamber and has at least one opening, which enables a gas exchange between the pre-chamber and the combustion chamber. In one embodiment, the total volume of the pre-chamber makes up at least 0.65% of the compressed volume of the combustion chamber.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: May 19, 2020
    Assignee: FEDERAL-MOGUL IGNITION GMBH
    Inventors: Werner Niessner, Matthias Blankmeister
  • Patent number: 10598130
    Abstract: A system composed of a water sleeve and a spark plug for an internal combustion engine. The spark plug has a supply passage, a center conductor, an insulator surrounding the center conductor, and a metallic body surrounding the insulator. A center electrode and at least one ground electrode form a spark air gap. In the region of its front end, the spark plug has an external thread for screwing the spark plug into a component of the internal combustion engine and has at least one discharge opening of the supply passage. The spark plug, at its front end, has, attached to the body, a sleeve that contains the external thread; the body has, on its outside, at least one groove that forms a section of the supply passage; and the sleeve has a heat conducting section that contains at least a part of the external thread and that is in contact with the body and covers at least portions of the groove.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: March 24, 2020
    Assignee: FEDERAL-MOGUL IGNITION GMBH
    Inventors: Werner Niessner, Andreas Zeh, Matthias Blankmeister
  • Patent number: 10439369
    Abstract: A method for producing an electrode device for a spark plug, with the following steps: preparation of an electrode body composed of a first material, the electrode body having a first joining surface; preparation of a precious metal part, which has a second joining surface; placement of the joining surfaces against each other and production of a relative movement between the joining surfaces during which the joining surfaces are pressed against each other with a first force (F1) that is less than a force threshold (FS); termination of the relative movement and pressing of the joining surfaces against each other for a pressing period (TA) with a second force (F2) that is greater than the force threshold (FS) in such a way that a diffusion from the first and/or second material beyond the joining surfaces takes place; and termination of the pressing together, wherein the relative movement is a linear movement and/or an orbital movement.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: October 8, 2019
    Assignee: FEDERAL-MOGUL IGNITION GMBH
    Inventors: Werner Niessner, Matthias Blankmeister
  • Publication number: 20190288489
    Abstract: A method for producing an electrode device for a spark plug, with the following steps: preparation of an electrode body composed of a first material, the electrode body having a first joining surface; preparation of a precious metal part, which has a second joining surface; placement of the joining surfaces against each other and production of a relative movement between the joining surfaces during which the joining surfaces are pressed against each other with a first force (F1) that is less than a force threshold (FS); termination of the relative movement and pressing of the joining surfaces against each other for a pressing period (TA) with a second force (F2) that is greater than the force threshold (FS) in such a way that a diffusion from the first and/or second material beyond the joining surfaces takes place; and termination of the pressing together, wherein the relative movement is a linear movement and/or an orbital movement.
    Type: Application
    Filed: March 14, 2019
    Publication date: September 19, 2019
    Inventors: Werner Niessner, Matthias Blankmeister
  • Publication number: 20190170090
    Abstract: A system composed of a water sleeve and a spark plug for an internal combustion engine. The spark plug has a supply passage, a center conductor, an insulator surrounding the center conductor, and a metallic body surrounding the insulator. A center electrode and at least one ground electrode form a spark air gap. In the region of its front end, the spark plug has an external thread for screwing the spark plug into a component of the internal combustion engine and has at least one discharge opening of the supply passage. The spark plug, at its front end, has, attached to the body, a sleeve that contains the external thread; the body has, on its outside, at least one groove that forms a section of the supply passage; and the sleeve has a heat conducting section that contains at least a part of the external thread and that is in contact with the body and covers at least portions of the groove.
    Type: Application
    Filed: December 6, 2018
    Publication date: June 6, 2019
    Inventors: Werner Niessner, Andreas Zeh, Matthias Blankmeister
  • Patent number: 10109986
    Abstract: A prechamber spark plug for a gas-powered internal combustion engine, having a metallic body, an insulator, a center electrode, at least one ground electrode, a cap, and a sleeve. The cap is arranged at a front end of the spark plug and shields the center and ground electrodes from a combustion chamber after the prechamber spark plug is installed in the internal combustion engine, and the cap delimits a prechamber in which the center electrode and the ground electrode are located from the combustion chamber. The cap has at least one opening that permits gas exchange between the prechamber and the space outside of the prechamber. The cap is mounted on the sleeve, which surrounds a section of the body, contains external threads for screwing into the internal combustion engine, and is joined to the body. In addition, a method for manufacturing the aforementioned spark plug is described.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: October 23, 2018
    Assignee: FEDERAL-MOGUL IGNITION GMBH
    Inventors: Werner Niessner, Andre Seeber, Matthias Blankmeister, Rene Trebbels, Marko Schwesinger
  • Publication number: 20180294624
    Abstract: A prechamber spark plug for an internal combustion engine with the following features: a body with an external thread at its front end for screwing the spark plug into the engine; the external thread has a center line and begins with a thread start at the front end; the body has a passage in which an insulator is fastened and a center electrode protrudes from the front end of this insulator; at the front end of the body, a prechamber-forming cap is provided, which delimits a prechamber and shields the center electrode from a combustion chamber of the engine after the spark plug has been installed in the engine; the cap has at least one opening, which has a predefined orientation in relation to the thread start and is oriented obliquely to the center line of the external thread so as to permit a gas exchange between the prechamber and the space outside the prechamber.
    Type: Application
    Filed: March 26, 2018
    Publication date: October 11, 2018
    Inventors: Werner Niessner, Matthias Blankmeister
  • Publication number: 20180294625
    Abstract: An internal combustion engine having: a housing with at least one cylinder and a pre-chamber spark plug; the cylinder has a piston that is able to move in the housing and delimits a combustion chamber contained in the housing; the combustion chamber has a compressed volume when the piston is at top dead center; the pre-chamber spark plug has a body, an external thread at its front end, a passage, an insulator positioned in the passage, a center electrode protruding from the front end of the insulator, and a pre-chamber-forming cap that is placed at the front end of the body and delimits a pre-chamber. The cap shields the center electrode from the combustion chamber and has at least one opening, which enables a gas exchange between the pre-chamber and the combustion chamber. In one embodiment, the total volume of the pre-chamber makes up at least 0.65% of the compressed volume of the combustion chamber.
    Type: Application
    Filed: April 4, 2018
    Publication date: October 11, 2018
    Inventors: Werner Niessner, Matthias Blankmeister
  • Publication number: 20180294626
    Abstract: A pre-chamber spark plug for an internal combustion engine having: a body with a passage in which an insulator is fastened and a center electrode protrudes; at least one ground electrode extending in a straight line forms a spark gap with the center electrode; a pre-chamber-forming cap which delimits a pre-chamber and shields the center and ground electrodes from a combustion chamber after the spark plug has been installed in the engine, wherein the cap has at least one opening which permits a gas exchange between the pre-chamber and the space outside the pre-chamber. The ground electrode includes a reinforcing component welded to an end surface of a supporting component, and the supporting component is either welded to an end surface of the body or is welded to a step that is formed on the end surface.
    Type: Application
    Filed: March 20, 2018
    Publication date: October 11, 2018
    Inventors: Werner Niessner, Matthias Blankmeister
  • Publication number: 20180123324
    Abstract: A prechamber spark plug for a gas-powered internal combustion engine, having a metallic body, an insulator, a center electrode, at least one ground electrode, a cap, and a sleeve. The cap is arranged at a front end of the spark plug and shields the center and ground electrodes from a combustion chamber after the prechamber spark plug is installed in the internal combustion engine, and the cap delimits a prechamber in which the center electrode and the ground electrode are located from the combustion chamber. The cap has at least one opening that permits gas exchange between the prechamber and the space outside of the prechamber. The cap is mounted on the sleeve, which surrounds a section of the body, contains external threads for screwing into the internal combustion engine, and is joined to the body. In addition, a method for manufacturing the aforementioned spark plug is described.
    Type: Application
    Filed: November 1, 2017
    Publication date: May 3, 2018
    Inventors: Werner Niessner, Andre Seeber, Matthias Blankmeister, Rene Trebbels, Marko Schwesinger
  • Patent number: 9831640
    Abstract: A method for manufacturing an ignition electrode for spark plugs for internal combustion engines and spark plug manufactured therewith. The method includes producing by powder metallurgy a green part or brown part containing the base metal or the base metal alloy, coating of a part of the surface of the green part or brown part with a mixture that contains the precious metal or the precious metal alloy in the form of a powder and a binder, removing the binder from the layer that was formed by the coating and that contains the precious metal or the precious metal alloy, and sintering the coated green part or brown part to form a composite part. The composite part can be welded as an end piece to the one end of the base-metal section of the ignition electrode.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: November 28, 2017
    Assignee: FEDERAL-MOGUL IGNITION GMBH
    Inventors: Werner Niessner, Matthias Blankmeister
  • Patent number: 9800023
    Abstract: A spark plug having at least one center or ground electrode that includes a first base metal or a first base metal alloy and a precious metal or a precious metal alloy. The at least one electrode has a surface bordering a spark gap that is made of a composite material in which crystalline particles of the precious metal or precious metal alloy are mixed with the first base metal or the first base metal alloy, and a portion of the particles of the precious metal or precious metal alloy forms a portion of the surface that borders the spark gap.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: October 24, 2017
    Assignee: FEDERAL-MOGUL IGNITION GMBH
    Inventors: Werner Niessner, Matthias Blankmeister
  • Publication number: 20170264083
    Abstract: A method for manufacturing an ignition electrode for spark plugs for internal combustion engines and spark plug manufactured therewith. The method includes producing by powder metallurgy a green part or brown part containing the base metal or the base metal alloy, coating of a part of the surface of the green part or brown part with a mixture that contains the precious metal or the precious metal alloy in the form of a powder and a binder, removing the binder from the layer that was formed by the coating and that contains the precious metal or the precious metal alloy, and sintering the coated green part or brown part to form a composite part. The composite part can be welded as an end piece to the one end of the base-metal section of the ignition electrode.
    Type: Application
    Filed: May 26, 2017
    Publication date: September 14, 2017
    Inventors: Werner Niessner, Matthias Blankmeister
  • Patent number: 9698576
    Abstract: A method for manufacturing an ignition electrode for spark plugs for internal combustion engines. The method includes producing by powder metallurgy a green part or brown part containing the base metal or the base metal alloy, coating of a part of the surface of the green part or brown part with a mixture that contains the precious metal or the precious metal alloy in the form of a powder and a binder, removing the binder from the layer that was formed by the coating and that contains the precious metal or the precious metal alloy, and sintering the coated green part or brown part to form a composite part. The composite part is welded as an end piece to the one end of the base-metal section of the ignition electrode.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: July 4, 2017
    Assignee: FEDERAL-MOGUL IGNITION GMBH
    Inventors: Werner Niessner, Matthias Blankmeister
  • Publication number: 20170170636
    Abstract: A spark plug having at least one center or ground electrode that includes a first base metal or a first base metal alloy and a precious metal or a precious metal alloy. The at least one electrode has a surface bordering a spark gap that is made of a composite material in which crystalline particles of the precious metal or precious metal alloy are mixed with the first base metal or the first base metal alloy, and a portion of the particles of the precious metal or precious metal alloy forms a portion of the surface that borders the spark gap.
    Type: Application
    Filed: December 15, 2016
    Publication date: June 15, 2017
    Inventors: Werner Niessner, Matthias Blankmeister