Patents by Inventor Stefan Dreymuller

Stefan Dreymuller 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 of operating an internal combustion engine
    Publication number: 20020023615
    Abstract: In a method for the operation of an internal combustion engine either on all cylinders (as full engine) or with only some cylinders in operation (cylinder cut-off), the cylinders are divided, in the firing order, into two groups of alternating cylinders which are selectively operative with an angular ignition spacing twice that of the cylinders of the engine when operating as full engine, the two groups of cylinders being activated alternately during engine operation with cylinder cut-off.
    Type: Application
    Filed: May 23, 2001
    Publication date: February 28, 2002
    Inventors: Stefan Dreymuller, Thomas Ganser, Thomas Monninger, Andreas Schmidt