Patents by Inventor Friedhelm Wessel

Friedhelm Wessel 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 controlling the combustion air supply in a steam generator that is fueled with fossil fuels
    Publication number: 20090183660
    Abstract: A method for controlling the combustion air supply in a steam generator that is fueled with fossil fuels, the combustion air being supplied gradually in different combustion zones. The combustion air supply is controlled, depending on the NOx and/or CO content in the flue gas, in such a manner that first the air supply is varied between the different combustion zones with approximately constant air volumes. An external control of the overall air volume overrides this type of control.
    Type: Application
    Filed: July 5, 2007
    Publication date: July 23, 2009
    Inventor: Friedhelm Wessel