Patents by Inventor Christopher P. Kolodziej

Christopher P. Kolodziej 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).

  • Low-cost high-efficiency GDCI engines for low octane fuels
    Patent number: 9863305
    Abstract: A GDCI engine has a piston arranged within a cylinder to provide a combustion chamber. According to one embodiment, the GDCI engine operates using a method that includes the steps of supplying a hydrocarbon fuel to the combustion chamber with a research octane number in the range of about 30-65. The hydrocarbon fuel is injected in completely stratified, multiple fuel injections before a start of combustion and supplying a naturally aspirated air charge to the combustion chamber.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: January 9, 2018
    Assignee: DELPHI TECHNOLOGIES, INC.
    Inventors: Christopher P. Kolodziej, Mark C. Sellnau
  • Internal combustion engine exhaust filtration analysis system
    Patent number: 8074505
    Abstract: A system for analyzing a substrate material for a diesel or other internal combustion engine exhaust filtration performance includes a valve that actuates within an exhaust system to modulate engine exhaust back pressure and correspondingly maintain a desired filtration velocity to influence a variable parameter within the system, based at least in part on an exhaust characteristic such as a sensed exhaust pressure differential defined across a substrate material.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: December 13, 2011
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: David E. Foster, Ekathai Wirojsakunchai, Christopher P. Kolodziej, Renato A. Yapaulo
  • Internal Combustion Engine Exhaust Filtration Analysis System
    Publication number: 20100005782
    Abstract: A system for analyzing a substrate material for a diesel or other internal combustion engine exhaust filtration performance includes a valve that actuates within an exhaust system to modulate engine exhaust back pressure and correspondingly maintain a desired filtration velocity to influence a variable parameter within the system, based at least in part on an exhaust characteristic such as a sensed exhaust pressure differential defined across a substrate material.
    Type: Application
    Filed: July 9, 2008
    Publication date: January 14, 2010
    Inventors: David E. Foster, Ekathai Wirojsakunchai, Christopher P. Kolodziej, Renato A. Yapaulo