Patents by Inventor Marin Hartweg

Marin Hartweg 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).

  • Exhaust line of an exhaust system equipped with a catalytic converter for an internal combustion engine
    Patent number: 6284332
    Abstract: An exhaust line for an exhaust system of an internal combustion engine having a catalytic converter, the exhaust line being located upstream of the catalytic converter with respect to the flow direction of exhaust. The exhaust line has an externally applied heat-conducting layer preferably made of a metallic material and an internally disposed insulating layer made of a heat-insulating material. The insulating layer and the heat-conducting layer are connected directly and forcewise with one another. The layer thickness of the insulating layer is less than 2 mm, the specific heat capacity c of the insulating layer is less than 106 J/(m3h), and the heat diffusivity &kgr; of the insulating layer is less than 0.01 cm2/s.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: September 4, 2001
    Assignee: DaimlerChrysler AG
    Inventors: Ulrich Buettner, Marin Hartweg, Herbert Klein, Martin Matt, Wolfram Muench, Karl-Heinz Thiemann, Reinhard Zachai