Patents by Inventor Michael Illek

Michael Illek 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 system for feeding a reducing agent into a catalyst device
    Patent number: 6502390
    Abstract: The present invention concerns a method and a system for feeding a reducing agent into a catalyst device. A first reservoir is provided and has a solid reducing agent, a second reservoir is provided and has a solvent for the solid reducing agent, and a reducing agent solutions is produced from the solid reducing agent and the solvent. The reducing agent solution is intermittently stored in a third reservoir, and the reducing agent solution is fed from the third reservoir into the catalyst device.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: January 7, 2003
    Assignees: Dr. Ing. h.c.F. Porsche Aktiengesellschaft, Audi AG, Bayerische Motoren Werke Aktiengesellschaft, DaimlerChrysler AG, Volkswagen AG
    Inventors: Christian Goerigk, Michael Illek, Stefan Wessels
  • Process for monitoring operation of an exhaust gas treatment system
    Patent number: 6367320
    Abstract: A process for monitoring the operation of a system for the aftertreatment of exhaust gas utilizes respective temperature sensors assigned to catalysts in the exhaust gas system. In addition, a sensor for detecting the NOx content in the exhaust gas is assigned to a reduction catalyst. The detected values, or functions thereof, are in each case compared with the definable reference values and when these definable limit values are exceeded, a corresponding defect information is triggered.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: April 9, 2002
    Assignees: Dr. Ing. h.c.F. Porsche Aktiengellschaft, AUDi AG, Bayerische Motoren Werke Aktiengesellschaft, DaimlerChrysler AG, Volkswagon AG
    Inventors: Paul Kueper, Stefan Dietrich Peter, Michael Illek, Jens Mueller, Christian Goerigk, Stefan Wessels
  • Method and system for feeding a reducing agent into a catalyst device
    Publication number: 20020023433
    Abstract: The present invention concerns a method and a system for feeding a reducing agent into a catalyst device. A first reservoir is provided and has a solid reducing agent, a second reservoir is provided and has a solvent for the solid reducing agent, and a reducing agent solution is produced from the solid reducing agent and the solvent. The reducing agent solution is intermittently stored in a third reservoir, and the reducing agent solution is fed from the third reservoir into the catalyst device.
    Type: Application
    Filed: August 9, 2001
    Publication date: February 28, 2002
    Inventors: Christian Goerigk, Michael Illek, Stefan Wessels