Patents by Inventor Johannes Hartick

Johannes Hartick 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).

  • Exhaust gas system and method of directing a flow of exhaust gas of a vehicular internal combustion engine
    Patent number: 7171800
    Abstract: An exhaust gas system of a vehicular internal combustion engine comprises a plurality of exhaust gas catalytic converters having different working temperature ranges. Depending on the temperature of the exhaust gas the latter is directed to the one or those converters into whose working temperature range the exhaust gas temperature falls.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: February 6, 2007
    Assignee: Arvin Technologies, Inc.
    Inventors: Shan Shih, Egon Hassel, Johannes Hartick, Winfried Willeke, Claus Gellermann, Jose-Luis Eguizabal, Gregg Speer, Markus Engelbertz
  • Exhaust gas system and method of directing a flow of exhaust gas of a vehicular internal combustion engine
    Publication number: 20050160722
    Abstract: An exhaust gas system of a vehicular internal combustion engine comprises a plurality of exhaust gas catalytic converters having different working temperature ranges. Depending on the temperature of the exhaust gas the latter is directed to the one or those converters into whose working temperature range the exhaust gas temperature falls.
    Type: Application
    Filed: September 28, 2004
    Publication date: July 28, 2005
    Inventors: Shan Shih, Egon Hassel, Johannes Hartick, Winfried Willeke, Claus Gellermann, Jose-Luis Eguizabal, Gregg Speer, Markus Engelbertz
  • Exhaust system
    Publication number: 20030005686
    Abstract: An exhaust system or an engine (12) includes a lean NOx catalytic device (18), and a heat exchanger (70) positioned upstream of the catalytic device (18). Control means (44, 46) controls a valve (36) to regulate exhaust gas flow through the heat exchanger (70) or along a bypass path (26). The heat exchanger (70) can cool the exhaust gases to ensure that the maximum operating temperature of the catalytic device (1) is not exceeded. During use, the heat exchanger (70) can be bypassed to allow high temperature purge cycles.
    Type: Application
    Filed: July 15, 2002
    Publication date: January 9, 2003
    Inventor: Johannes Hartick
  • Exhaust system
    Patent number: 6422007
    Abstract: An exhaust system or an engine (12) includes a lean NOx catalytic device (18), and a heat exchanger (70) positioned upstream of the catalytic device (18). Control means (44, 46) controls a valve (36) to regulate exhaust gas flow through the heat exchanger (70) or along a bypass path (26). The heat exchanger (70) can cool the exhaust gases to ensure that the maximum operating temperature of the catalytic device (1) is not exceeded. During use, the heat exchanger (70) can be bypassed to allow high temperature purge cycles.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: July 23, 2002
    Assignee: Arvinmeritor, Inc.
    Inventor: Johannes Hartick