Patents by Inventor David T. Zultowski

David T. Zultowski 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).

  • Methods for an exhaust fluid level sensor
    Patent number: 9243755
    Abstract: Various methods are provided for notifying a vehicle operator of various parameters based on an exhaust fluid level sensor of an exhaust fluid storage tank. In one example, the parameter is a consumption rate of the exhaust fluid. In another example, the parameter is an amount of fluid to be added to the exhaust fluid storage tank.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: January 26, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Don M. Lawrence, Scott Donald Cooper, Dwayne Pollitt, Jimmy Zhu, David T. Zultowski, Scott J. Szymusiak
  • Method to detect fuel vaporizer coking
    Patent number: 8839603
    Abstract: A method of supplying fuel vapor to an exhaust aftertreatment device of a motor vehicle is provided. The method includes evaporating fuel on a voltage-biased, resistive heating element, the element set in an enclosure configured to release fuel vapor to the exhaust-aftertreatment device, and indicating that the element is degraded if a current flowing through the element is less than a threshold current. In some embodiments, the threshold current is based on the ambient temperature and/or the amount of fuel in the enclosure.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: September 23, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Don McAlpine Lawrence, Scott Donald Cooper, David T. Zultowski, Michiel J. Van Nieuwstadt, Roberto Teran, Jr., Emile Wheeler, III
  • METHODS FOR AN EXHAUST FLUID LEVEL SENSOR
    Publication number: 20130125997
    Abstract: Various methods are provided for notifying a vehicle operator of various parameters based on an exhaust fluid level sensor of an exhaust fluid storage tank. In one example, the parameter is a consumption rate of the exhaust fluid. In another example, the parameter is an amount of fluid to be added to the exhaust fluid storage tank.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 23, 2013
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Don M. Lawrence, Scott Donald Cooper, Dwayne Pollitt, Jimmy Zhu, David T. Zultowski, Scott J. Szymusiak
  • METHOD TO DETECT FUEL VAPORIZER COKING
    Publication number: 20130004149
    Abstract: A method of supplying fuel vapor to an exhaust aftertreatment device of a motor vehicle is provided. The method includes evaporating fuel on a voltage-biased, resistive heating element, the element set in an enclosure configured to release fuel vapor to the exhaust-aftertreatment device, and indicating that the element is degraded if a current flowing through the element is less than a threshold current. In some embodiments, the threshold current is based on the ambient temperature and/or the amount of fuel in the enclosure.
    Type: Application
    Filed: September 10, 2012
    Publication date: January 3, 2013
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Don McAlpine Lawrence, Scott Donald Cooper, David T. Zultowski, Michiel J. Van Nieuwstadt, Roberto Teran, JR., Emile Wheeler, III
  • Method to detect fuel vaporizer coking
    Patent number: 8261536
    Abstract: A method of supplying fuel vapor to an exhaust aftertreatment device of a motor vehicle is provided. The method includes evaporating fuel on a voltage-biased, resistive heating element, the element set in an enclosure configured to release fuel vapor to the exhaust-aftertreatment device, and indicating that the element is degraded if a current flowing through the element is less than a threshold current. In some embodiments, the threshold current is based on the ambient temperature and/or the amount of fuel in the enclosure.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: September 11, 2012
    Assignee: Ford Global Technologies, LLC
    Inventors: Don McAlpine Lawrence, Scott Donald Cooper, David T. Zultowski, Michiel J. Van Nieuwstadt, Roberto Teran, Jr., Emile Wheeler, III
  • METHOD TO DETECT FUEL VAPORIZER COKING
    Publication number: 20090313980
    Abstract: A method of supplying fuel vapor to an exhaust aftertreatment device of a motor vehicle is provided. The method includes evaporating fuel on a voltage-biased, resistive heating element, the element set in an enclosure configured to release fuel vapor to the exhaust-aftertreatment device, and indicating that the element is degraded if a current flowing through the element is less than a threshold current. In some embodiments, the threshold current is based on the ambient temperature and/or the amount of fuel in the enclosure.
    Type: Application
    Filed: June 19, 2008
    Publication date: December 24, 2009
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Don McAlpine Lawrence, Scott Donald Cooper, David T. Zultowski, Michiel J. Van Nieuwstadt, Roberto Teran, JR., Emile Wheeler, III