Patents by Inventor Geert Odulphus Martinus VAN KOLLENBURG

Geert Odulphus Martinus VAN KOLLENBURG 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).

  • Pro-active thermal measure to recover and or retain deNOx performance
    Patent number: 11293324
    Abstract: A short cyclic thermal treatment process in an engine aftertreatment system of a diesel engine in a vehicle, which may be able to recover and/or retain NOx conversion performance of an engine aftertreatment system by keeping the system clean from unintended pollution like accumulated urea deposits. The thermal treatment process is controlled by a process controller, arranged to carry out a long cyclic cleaning process at a first time interval, at a first exhaust gas temperature higher than the operational temperature in regeneration mode; combined with a short cyclic thermal treatment process at a second time interval, at a second exhaust gas temperature higher than the operational temperature in non-regeneration mode; wherein the second elevated exhaust gas temperature is lower than the first temperature.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: April 5, 2022
    Assignee: DAF Trucks N.V.
    Inventors: Kevin Arnold Maria Bisschops, Christiaan Kurvers, Geert Odulphus Martinus Van Kollenburg
  • PRO-ACTIVE THERMAL MEASURE TO RECOVER AND OR RETAIN deNOx PERFORMANCE
    Publication number: 20210189934
    Abstract: A short cyclic thermal treatment process in an engine aftertreatment system of a diesel engine in a vehicle, which may be able to recover and/or retain NOx conversion performance of an engine aftertreatment system by keeping the system clean from unintended pollution like accumulated urea deposits. The thermal treatment process is controlled by a process controller, arranged to carry out a long cyclic cleaning process at a first time interval, at a first exhaust gas temperature higher than the operational temperature in regeneration mode; combined with a short cyclic thermal treatment process at a second time interval, at a second exhaust gas temperature higher than the operational temperature in non-regeneration mode; wherein the second elevated exhaust gas temperature is lower than the first temperature.
    Type: Application
    Filed: April 9, 2019
    Publication date: June 24, 2021
    Applicant: DAF Trucks N.V.
    Inventors: Kevin Arnold Maria BISSCHOPS, Christiaan KURVERS, Geert Odulphus Martinus VAN KOLLENBURG