Patents by Inventor Herbert Guettle

Herbert Guettle 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 operating an internal combustion engine, and an internal combustion engine
    Patent number: 5924411
    Abstract: A method operates an improved internal combustion engine by heating the fuel before entry into the cylinder, at least during the cold-start phase of the engine. In order to undertake the heating step in a favorable way, at least areas in the region of an intake valve are irradiated with an electromagnetic radiation of radiation source, and thereby heated without contact. As a result, liquid fuel in the valve region is heated by contact with the areas of the valve region, and condensation of the fuel is at least reduced.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: July 20, 1999
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventors: Herbert Guettle, Martin Hartweg, Eberhard Holder, Herbert Klein