Patents by Inventor Ulf HARBS

Ulf HARBS 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).

  • CYLINDER, METHOD FOR FINISHING A CYLINDER, RECIPROCATING PISTON SYSTEM AND USE OF A RECIPROCATING PISTON SYSTEM
    Publication number: 20190101078
    Abstract: A cylinder for a reciprocating piston system, with a cylinder running surface, which is finished by machining by means of a tool with a geometrically defined cutting edge, wherein the finished cylinder running surface has a multiplicity of pores and/or cavities and is formed from a grey cast iron material with a proportion of the surface area that is taken up by pores of 2 to 10% or is formed from a thermally sprayed layer of iron or a thermally sprayed layer of ceramic with a proportion of the surface area that is taken up by pores of 5 to 25%. A method is also provided for finishing a cylinder in which a cylinder running surface of the cylinder is finished by machining by a tool with a geometrically defined cutting edge such that after the finishing the cylinder surface has a multiplicity of pores and/or cavities.
    Type: Application
    Filed: November 30, 2018
    Publication date: April 4, 2019
    Applicants: Volkswagen AG, Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Marcel BORTFELDT, Ulf HARBS, Nils LEHRMANN, Andreas SCHUBERT, Daniel RICHTER, Torsten SCHMIDT, Joerg SCHNEIDER