Patents by Inventor Stephan Andre Rudolph

Stephan Andre Rudolph 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 and device for operating a diesel motor using a fuel that comprises vegetable oils or recycled vegetable oils
    Patent number: 7568474
    Abstract: The invention relates to a method and a device for operating a diesel motor using a fuel that comprises vegetable oils or recycled vegetable oils. The fuel is withdrawn from a tank, filtered through a fuel filter and injected into the cylinders through injection nozzles by means of an injection pump. Any excess fuel is returned. The fuel is transferred from the tank via pressure-resistant fiber filters by means of a forcing pump to a storage reservoir, where it is irradiated ultrasonically. The fuel is sucked out of the storage reservoir by the injection pump and excess fuel is returned to the storage reservoir.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: August 4, 2009
    Inventors: Stephan Andre Rudolph, Peter Rene Rudolph