Patents by Inventor Justin M. O'Connor

Justin M. O'Connor 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).

  • TIMER-BASED WARNING STRUCTURE FOR DETECTING AND INDICATING AN OVERLOADED DIESEL PARTICULATE FILTER
    Publication number: 20090139211
    Abstract: An engine (12) has an exhaust system (16) containing a diesel particulate filter (DPF 20) and timer-based warning structure (30) for detecting and indicating particulate overloading of the DPF as the engine runs.
    Type: Application
    Filed: December 3, 2007
    Publication date: June 4, 2009
    Applicant: International Engine Intellectual Property Company, LLC
    Inventors: Paul L. Berke, Justin M. O'Connor
  • Attenuation of engine harshness during lean-to-rich transitions
    Patent number: 7292930
    Abstract: Engine systems and methods for accomplishing regeneration of a NOx adsorber (28) using in-cylinder post-injection in a way that creates a lean-rich transition (FIG. 3) for regenerating the NOx adsorber while attenuating engine torque output fluctuations during the transition without the necessity of using torque sensing to attenuate the fluctuations.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: November 6, 2007
    Assignee: International Engine Intellectual Property Company, LLC
    Inventors: Guoqing Zhang, Justin M. O'Connor, Michael J. Miller, Xinqun Gui
  • Attenuation of engine harshness during lean-to rich transitions
    Patent number: 7191591
    Abstract: Engine systems and methods for accomplishing regeneration of a NOx adsorber (28) using in-cylinder post-injection in a way that creates a lean-rich transition (FIG. 3) for regenerating the NOx adsorber while attenuating engine torque output fluctuations during the transition without the necessity of using torque sensing to attenuate the fluctuations.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: March 20, 2007
    Assignee: International Engine Intellectual Property Company, LLC
    Inventors: Guoqing Zhang, Justin M. O'Connor, Michael J. Miller, Xinqun Gui
  • De-sulfurization of a NOadsorber catalyst in a diesel engine exhaust system
    Patent number: 7047730
    Abstract: De-sulfurizing a NOx adsorber catalyst (48) without significantly increasing the temperature of exhaust gases leaving the engine exhaust manifold (42) by using a diesel oxidation catalyst (46) between the exhaust manifold and the NOx adsorber catalyst to elevate exhaust gas temperature entering the NOx adsorber catalyst to suitable de-sulfurizing temperature through control of certain aspects of engine operation (24, 28, 52).
    Type: Grant
    Filed: July 8, 2004
    Date of Patent: May 23, 2006
    Assignee: International Engine Intellectual Property Company, LLC
    Inventors: Xinlei Wang, Patrick D. Barasa, Justin M. O'Connor, Shouxian Ren