Patents by Inventor Karl Diffenbach

Karl Diffenbach 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).

  • METHOD FOR PRODUCING AN ARBITRARY GEOMETRY ON PISTONS OF INTERNAL COMBUSTION ENGINES
    Publication number: 20150224589
    Abstract: A method for processing a constructed, liquid-cooled piston of an internal combustion engine, the piston including an upper piston part and a lower piston part, which are supported by a joining plane and are connected to each other in a bonded manner. An electrochemical method, such as electrochemical machining, is used to produce a passage opening or a hole in the piston. By means of the method, material is selectively removed after the completion of the upper part piston, the lower piston part, or the piston after the two piston parts have been joined. The electrochemical machining allows an arbitrarily geometrically designed topography having at least one passage opening, a hollow, or an oil pocket in cooling areas or non-cooling areas to be created on the piston.
    Type: Application
    Filed: February 13, 2015
    Publication date: August 13, 2015
    Applicant: KS KOLBENSCHMIDT GMBH
    Inventors: Janssen Albert Michael, Gniesmer Volker, Karl Diffenbach, Gerhard Luz
  • METHOD FOR PRODUCING AN ARBITRARY GEOMETRY ON PISTONS OF INTERNAL COMBUSTION ENGINES
    Publication number: 20130062218
    Abstract: A method for processing a constructed, liquid-cooled piston of an internal combustion engine, the piston including an upper piston part and a lower piston part, which are supported by a joining plane and are connected to each other in a bonded manner. An electrochemical method, such as electrochemical machining, is used to produce a passage opening or a hole in the piston. By means of the method, material is selectively removed after the completion of the upper part piston, the lower piston part, or the piston after the two piston parts have been joined. The electrochemical machining allows an arbitrarily geometrically designed topography having at least one passage opening, a hollow, or an oil pocket in cooling areas or non-cooling areas to be created on the piston.
    Type: Application
    Filed: February 12, 2011
    Publication date: March 14, 2013
    Applicant: KS KOLBENSCHMIDT GMBH
    Inventors: Janssen Albert Michael, Gniesmer Volker, Karl Diffenbach, Gerhard Luz