Patents by Inventor Robert Leinfelder

Robert Leinfelder 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 for detecting the minimum opening time of a reducing agent feed device in an exhaust gas aftertreatment system comprising an SCR catalyst
    Patent number: 8555618
    Abstract: In a method for adapting the reducing agent feed in an exhaust gas aftertreatment system having an SCR catalyst for removing nitrogen oxides from the exhaust gas of an internal combustion engine and at least one reducing agent feed device, the minimum opening time of the reducing agent feed device is determined during operation and while suspending nitrogen emission, carrying out the following steps: a) the opening time of the reducing agent feed device is gradually prolonged until b) a reducing agent-sensitive sensor in the exhaust gas aftertreatment system detects a reducing agent signal. An exhaust gas aftertreatment system is designed accordingly for carrying out the method and a device is designed for controlling an exhaust gas aftertreatment system.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: October 15, 2013
    Assignee: Continental Automotive GmbH
    Inventors: Peter Bauer, Rainer Bentz, Joris Fokkelman, Joachim Frank, Hermann Ketterl, Ingo Koops, Robert Leinfelder
  • METHOD FOR DETECTING THE MINIMUM OPENING TIME OF A REDUCING AGENT FEED DEVICE IN AN EXHAUST GAS AFTERTREATMENT SYSTEM COMPRISING AN SCR CATALYST
    Publication number: 20100257842
    Abstract: In a method for adapting the reducing agent feed in an exhaust gas aftertreatment system having an SCR catalyst for removing nitrogen oxides from the exhaust gas of an internal combustion engine and at least one reducing agent feed device, the minimum opening time of the reducing agent feed device is determined during operation and while suspending nitrogen emission, carrying out the following steps: a) the opening time of the reducing agent feed device is gradually prolonged until b) a reducing agent-sensitive sensor in the exhaust gas aftertreatment system detects a reducing agent signal. An exhaust gas aftertreatment system is designed accordingly for carrying out the method and a device is designed for controlling an exhaust gas aftertreatment system.
    Type: Application
    Filed: September 18, 2008
    Publication date: October 14, 2010
    Inventors: Peter Bauer, Rainer Bentz, Joris Fokkelman, Joachim Frank, Hermann Ketterl, Ingo Koops, Robert Leinfelder