Patents by Inventor Derk Geurts

Derk Geurts 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).

  • Internal combustion engine system
    Patent number: 8381513
    Abstract: A compression-ignition internal combustion engine system having an exhaust passage and an exhaust gas treatment arrangement, wherein the exhaust gas treatment arrangement comprises a three-way catalytic converter.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: February 26, 2013
    Assignee: Delphi Technologies Holding S.arl
    Inventors: Bart Hubert Schreurs, Derk Geurts
  • INTERNAL COMBUSTION ENGINE SYSTEM
    Publication number: 20100223909
    Abstract: A compression-ignition internal combustion engine system having an exhaust passage and an exhaust gas treatment arrangement, wherein the exhaust gas treatment arrangement comprises a three-way catalytic converter.
    Type: Application
    Filed: July 24, 2008
    Publication date: September 9, 2010
    Applicant: DELPHI TECHNOLOGIES, INC.
    Inventors: Bart Hubert Schreurs, Derk Geurts
  • Control method for a direct injection gas engine with fuel vapor purging
    Patent number: 6622691
    Abstract: A control method for a direct injection gasoline engine operable in stratified or homogenous combustion modes and having a fuel vapor purge system estimates the hydrocarbon concentration of purge vapor during open loop fuel control in the stratified combustion mode, and controls the fuel injection quantity and the combustion mode based on the estimated concentration. The hydrocarbon concentration of the purge vapor is estimated during open-loop fuel control by measuring the air/fuel ratio error during steady state operation with no fuel vapor purging, and using such air/fuel ratio error to normalize the air/fuel error observed during steady state operation with purge control. The fuel injection quantity is compensated for the estimated purge vapor concentration, and engine combustion mode is determined in part based on a comparison of the estimated concentration with a calibrated threshold.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: September 23, 2003
    Assignee: Delphi Technologies, Inc.
    Inventors: Andrew P. Bagnasco, Michael J. Steckler, Sergio Quelhas, Derk Geurts
  • Control method for a direct injection gas engine with fuel vapor purging
    Publication number: 20030047161
    Abstract: A control method for a direct injection gasoline engine operable in stratified or homogenous combustion modes and having a fuel vapor purge system estimates the hydrocarbon concentration of purge vapor during open loop fuel control in the stratified combustion mode, and controls the fuel injection quantity and the combustion mode based on the estimated concentration. The hydrocarbon concentration of the purge vapor is estimated during open-loop fuel control by measuring the air/fuel ratio error during steady state operation with no fuel vapor purging, and using the measured steady state air/fuel ratio error to normalize the air/fuel error observed during steady state operation with purge control. The fuel injection quantity is compensated for the estimated purge vapor concentration, and engine combustion mode is determined in part based on a comparison of the estimated concentration with a calibrated threshold.
    Type: Application
    Filed: September 10, 2001
    Publication date: March 13, 2003
    Inventors: Andrew P. Bagnasco, Michael J. Steckler, Sergio Quelhas, Derk Geurts