Patents by Inventor Stefan Matschke

Stefan Matschke 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).

  • Apparatus and method for purifying exhaust gases for combustion engines
    Patent number: 8475754
    Abstract: An engine exhaust gas purification device comprising control unit having successively arranged switching device (1), counter-current heat exchanger (3) and at least one exhaust gas purification component (2). The switching device (1) has a first position where a flow path (6) of the exhaust gas to the exhaust gas purification component (2) is opened and a second position where a flow path (6) of the exhaust gas to the exhaust gas purification component (2) is blocked and the exhaust gas flows along a further flow path (7) where the exhaust gas is heated and conveyed, via a flow path (20) of the exhaust gas purification component (2), and exits the exhaust gas purification unit (5) through outlet channels (4) of the counter-current heat exchanger (3). The switching device, the exhaust gas purification component, the counter-current heat exchanger and the flow paths are integrated in a compact exhaust gas treatment unit.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: July 2, 2013
    Assignee: Universitaet Stuttgart Institut fuer Chemische
    Inventors: Gerhart Eigenberger, Ulrich Nieken, Matthias Rink, Stefan Matschke
  • Apparatus and method for purifying exhaust gases for combustion engines
    Publication number: 20130136675
    Abstract: An engine exhaust gas purification device comprising control unit having successively arranged switching device (1), counter-current heat exchanger (3) and at least one exhaust gas purification component (2). The switching device (1) has a first position where a flow path (6) of the exhaust gas to the exhaust gas purification component (2) is opened and a second position where a flow path (6) of the exhaust gas to the exhaust gas purification component (2) is blocked and the exhaust gas flows along a further flow path (7) where the exhaust gas is heated and conveyed, via a flow path (20) of the exhaust gas purification component (2), and exits the exhaust gas purification unit (5) through outlet channels (4) of the counter-current heat exchanger (3). The switching device, the exhaust gas purification component, the counter-current heat exchanger and the flow paths are integrated in a compact exhaust gas treatment unit.
    Type: Application
    Filed: August 8, 2012
    Publication date: May 30, 2013
    Applicant: UNIVERSITAET STUTTGART
    Inventors: Gerhart EIGENBERGER, Ulrich Nieken, Matthias Rink, Stefan Matschke