Patents by Inventor Joachim Karwath

Joachim Karwath 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).

  • Flange arrangement of an engine cylinder head and a method for producing the flange arrangement
    Publication number: 20060279047
    Abstract: The invention relates to a flange arrangement (2, 14, 25) of an engine cylinder head (22) and to a process for producing it. To simplify them as much as possible without losing the functionality of the flange arrangement (2, 14, 25), it is proposed that the flange arrangement (2, 14, 25) have at least two single-piece individual flanges (1a-d, 13a-c, 26), which bear against one another with in each case at least one peripheral region (8a-d, 15, 20, 28, 29) overlapping, in such a manner that in the overlapping area their securing bores (3, 16, 27) for attaching them to the cylinder head (22) are aligned.
    Type: Application
    Filed: July 7, 2004
    Publication date: December 14, 2006
    Inventors: Wilfried Bien, Pierre Bonny, Gerd Duerr, Georg Georgs, Michael Halves, Thomas Huelsberg, Joachim Karwath, Uwe Kluessmann, Holger Nuhn, Ralf Puenjer, Olav Reinhardt, Dirk Riewert, Thorsten Sternal, Gerd Tiefenbacher
  • Exhaust gas cleaning system for an internal combustion engine, for a motor vehicle
    Patent number: 6698193
    Abstract: An exhaust gas cleaning system for an internal combustion engine for a motor vehicle has a catalytic converter housing with an associated exhaust catalytic converter and an inlet opening for connecting an exhaust pipe. A throttle element is arranged in the catalytic converter housing, in such a manner that a first reaction chamber, which lies between the throttle element and the inlet opening, and a second reaction chamber, which lies between throttle element and exhaust catalytic converter, are formed by the throttle element.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: March 2, 2004
    Assignee: DaimlerChrysler AG
    Inventors: Gerd Duerr, Joachim Karwath, Gerd Tiefenbacher
  • Exhaust gas cleaning system for an internal combustion engine, for a motor vehicle
    Publication number: 20030061806
    Abstract: An exhaust gas cleaning system for an internal combustion engine for a motor vehicle has a catalytic converter housing with an associated exhaust catalytic converter and an inlet opening for connecting an exhaust pipe. A throttle element is arranged in the catalytic converter housing, in such a manner that a first reaction chamber, which lies between the throttle element and the inlet opening, and a second reaction chamber, which lies between throttle element and exhaust catalytic converter, are formed by the throttle element.
    Type: Application
    Filed: September 5, 2002
    Publication date: April 3, 2003
    Inventors: Gerd Duerr, Joachim Karwath, Gerd Tiefenbacher