Patents by Inventor Ingwar Hunsche

Ingwar Hunsche 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).

  • Valve seat ring
    Patent number: 11311936
    Abstract: The invention relates to a highly heat conductive valve seat ring (1) comprising a carrier layer (2) and a functional layer (3), wherein the carrier layer (2) consists of a solidified copper matrix containing 0.10 to 20% w/w of a solidifying component and the functional layer (3) consists of a solidified copper matrix which further contains, based on the copper matrix, 5 to 35% w/w of one or more hard phases.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: April 26, 2022
    Assignee: Bleistahl-Produktions GmbH & Co KG
    Inventors: Ekkehard Kohler, Dirk Emde, Ingwar Hunsche, Robert Hammelmann, Christian Blecking, Anna Seyfarth
  • POWDER METALLURGICALLY PRODUCED COMPONENT
    Publication number: 20200376544
    Abstract: The invention relates to a component produced powder metallurgically in the form of a valve guide or a valve seat ring having an iron-based matrix containing a mineral solid lubricant, with the matrix having a density ranging between 75 and 90% of the theoretical density, and with the mineral solid lubricant having a melting point that lies below the sintering temperature of the matrix and the remaining pore volume of the matrix of the component being melt infiltrated with the solid lubricant.
    Type: Application
    Filed: April 26, 2018
    Publication date: December 3, 2020
    Applicant: Bleistahl-Produktions GmbH & Co KG
    Inventors: Christopher Rynio, Ingwar Hünsche, Ekkehard KÖHLER
  • VALVE SEAT RING
    Publication number: 20190143415
    Abstract: The invention relates to a highly heat conductive valve seat ring (1) comprising a carrier layer (2) and a functional layer (3), wherein the carrier layer (2) consists of a solidified copper matrix containing 0.10 to 20% w/w of a solidifying component s and the functional layer (3) consists of a solidified copper matrix which further contains, based on the copper matrix, 5 to 35% w/w of one or more hard phases.
    Type: Application
    Filed: May 24, 2017
    Publication date: May 16, 2019
    Applicant: Bleistahl-Produktions GmbH &Co KG
    Inventors: Ekkehard Kohler, Dirk Emde, Ingwar Hunsche, Robert Hammelmann, Christian Blecking, Anna Seyfarth
  • VALVE GUIDE
    Publication number: 20180171836
    Abstract: The invention relates to a valve guide manufactured by powder-metallurgical processes for combustion engines, said guide comprising a central section, a cam-side end piece and a duct-side end piece, wherein the central section consists of a first material and the duct-side end piece of a second material, with the cam-side and/or duct-side end piece being infiltrated with copper.
    Type: Application
    Filed: May 20, 2016
    Publication date: June 21, 2018
    Applicant: Bleistahl-Produktions GmbH & Co KG
    Inventors: Ingwar Hunsche, Christian Blecking, Ekkehard Kohler
  • Double/triple-layer valve guide
    Patent number: 9988951
    Abstract: The invention relates to a valve guide manufactured by a powder-metallurgical process for combustion engines, said guide comprising a central section, a cam-side end piece, and a duct-side end piece, wherein the central section consists of a first material and the duct-side end piece of a second material, with the second material having a hardness in excess of 70 HRB and the first material having a hardness that is by at least 10 HRB lower than that of the second material.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: June 5, 2018
    Assignee: Bleistahl-Produktions GmbH & Co KG
    Inventors: Ingwar Hunsche, Christian Blecking, Ekkehard Kohler, Dirk Emde
  • DOUBLE/TRIPLE-LAYER VALVE GUIDE
    Publication number: 20160312668
    Abstract: The invention relates to a valve guide manufactured by a powder-metallurgies process for combustion engines, said guide comprising a central section, a cam-side end piece, and a duct-side end piece, wherein the central section consists of a first material and the duct-side end piece of a second material, with the second material having a hardness in excess of 70 HRB and the first material having a hardness that is by at least 10 HRB lower than that of the second material.
    Type: Application
    Filed: December 16, 2014
    Publication date: October 27, 2016
    Applicant: Bleistahl-Produktions GmbH & Co KG
    Inventors: Ingwar Hunsche, Christian Blecking, Ekkehard Kohler, Dirk Emde