Patents by Inventor Edwin Hartmann

Edwin Hartmann 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 head cover
    Patent number: 9175636
    Abstract: A cylinder head cover having a bearing device that includes at least two bearing blocks for supporting a camshaft, and one connecting element. The bearing blocks are axially penetrated in a first through-opening by the camshaft and are fixed in an aligned position with respect to one another by the connecting element. The bearing blocks, the connecting element and the camshaft form a prefabricated assembly. The cylinder head cover is connected via at least one additional connecting element with the bearing device, whereby a unit consisting of the cylinder head cover and the bearing device are mounted on the cylinder head.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: November 3, 2015
    Assignee: Mahle International GmbH
    Inventors: Robert Dunsch, Edwin Hartmann, Michael Kreisig, Stefan Ruppel, Jan Scheffel, Falk Schneider, Markus Walch
  • Cylinder head of an internal combustion engine
    Patent number: 8573188
    Abstract: The invention relates to a cylinder head (1) of an internal combustion engine, comprising at least one hollow camshaft (2) which forms an exhaust for blow-by gases containing oil mist from the crank housing and is also embodied as an oil mist pre fractionator for the preliminary separation of the oil part from these gases. Furthermore, an oil mist post-fractionator (5) is axially arranged on the end of the camshaft (2), in order to carry out an especially effective separation of oil dissolved in the blow-by gases.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: November 5, 2013
    Assignee: Mahle International GmbH
    Inventors: Mirko Braun, Michael Feil, Edwin Hartmann, Stefan Ruppel
  • CYLINDER HEAD COVER
    Publication number: 20110005490
    Abstract: A cylinder head cover having a bearing device that includes at least two bearing blocks for supporting a camshaft, and one connecting element. The bearing blocks are axially penetrated in a first through-opening by the camshaft and are fixed in an aligned position with respect to one another by the connecting element. The bearing blocks, the connecting element and the camshaft form a prefabricated assembly. The cylinder head cover is connected via at least one additional connecting element with the bearing device, whereby a unit consisting of the cylinder head cover and the bearing device are mounted on the cylinder head.
    Type: Application
    Filed: October 20, 2008
    Publication date: January 13, 2011
    Inventors: Robert Dunsch, Edwin Hartmann, Michael Kreisig, Stefan Ruppel, Jan Scheffel, Falk Schneider, Markus Walch
  • CYLINDER HEAD OF AN INTERNAL COMBUSTION ENGINE
    Publication number: 20090250044
    Abstract: The invention relates to a cylinder head (1) of an internal combustion engine, comprising at least one hollow camshaft (2) which forms an exhaust for blow-by gases containing oil mist from the crank housing and is also embodied as an oil mist pre fractionator for the preliminary separation of the oil part from these gases. Furthermore, an oil mist post-fractionator (5) is axially arranged on the end of the camshaft (2), in order to carry out an especially effective separation of oil dissolved in the blow-by gases.
    Type: Application
    Filed: April 24, 2007
    Publication date: October 8, 2009
    Inventors: Mirko Braun, Michael Feil, Edwin Hartmann, Stefan Ruppel