Patents by Inventor Eberhard Hirsch

Eberhard Hirsch 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).

  • Additive for a fuel to neutralize sulfur dioxide and/or sulfur trioxide in the exhaust gases
    Patent number: 6200358
    Abstract: The present invention relates to an additive for a fuel for the neutralization of SO2 and/or SO3 in the exhaust gases of internal combustion engines operated with the fuel, and a method for the neutralization of SO2 and/or SO3 in the exhaust gases of internal combustion engines. According to the invention, the additive contains one or more metal compounds soluble in the fuel. In the combustion of the fuel these compounds form stable sulfates which are present in solid particles in the exhaust gas. The method of the invention is characterized in that one or more of these additives are added to the fuel and the combustion of the fuel takes place in an oxidizing atmosphere.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: March 13, 2001
    Assignee: DaimlerChrysler AG
    Inventors: Holger Fleischer, Eberhard Hirsch, Karl-Heinz Thiemann