Patents by Inventor Alan R. Schroeder

Alan R. Schroeder 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).

  • Patent number: 7591258
    Abstract: The present disclosure provides a control strategy for balancing injector-to-injector fueling variations for a combustion engine having multiple combustion chambers (and cylinders), with multiple individually actuated injectors for injecting fuel into the combustion chambers, wherein at least one injector is assigned to each combustion chamber and a common rail supplies fuel to the multiple injectors. The method includes changing the actuation waveform of an injector assigned to a combustion chamber having an exhaust gas temperature deviating by more than the predetermined value from the average exhaust gas temperature, in order to change the amount of fuel injected.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: September 22, 2009
    Assignee: Caterpillar Motoren GmbH & Co. KG
    Inventors: Juergen Nagel, Bert Ritscher, Alan R. Schroeder
  • Publication number: 20070289584
    Abstract: In order to improve the performance of a common rail engine and reduce the number of false alarms by the exhaust gas temperature monitoring system, the present disclosure provides a control strategy for balancing injector-to-injector fueling variations for a combustion engine having multiple combustion chambers (and cylinders), with multiple individually actuated injectors for injecting fuel into the combustion chambers, wherein at least one injector is assigned to each combustion chamber and a common rail supplies fuel to the multiple injectors.
    Type: Application
    Filed: June 13, 2007
    Publication date: December 20, 2007
    Inventors: Juergen Nagel, Bert Ritscher, Alan R. Schroeder