Patents by Inventor Lydell S. Powell

Lydell S. Powell 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).

  • GASOLINE PARTICULATE FILTER ON-BOARD DIAGNOSTIC TECHNIQUES USING OXYGEN SENSOR HEATER
    Publication number: 20190234265
    Abstract: A diagnostic system and method for a gasoline particulate filter (GPF) of an exhaust system of a vehicle comprise at least one heater associated with at least one oxygen (O2) sensor disposed proximate to the GPF in the exhaust system and a controller configured to determine a status of the GPF based on a duty cycle of the at least one O2 sensor heater and, based on the determined status of the GPF, detect a malfunction of the GPF or whether to regenerate the GPF.
    Type: Application
    Filed: February 1, 2018
    Publication date: August 1, 2019
    Inventors: Edward E Baker, Robert Jerger, James J Daley, John R Jaye, Roger C Sager, Joseph M Dekar, Mark L Lott, Brian L Terwedo, Jospeh B Unsworth, Jordan E Easter, Luis J Del Rio, Wei-Jun Yang, Lydell S Powell, Xuefei Chen, Andrew Brocker
  • System for concentrating exhaust gas flow in a catalyst during cold starts
    Patent number: 9631537
    Abstract: An exhaust gas flow concentration system for a catalyst includes an inlet that receives a flow of exhaust gas from an exhaust pipe of an exhaust system, a stationary tube in communication with the inlet and disposed upstream from the catalyst, and an extension tube in communication with the stationary tube and disposed upstream from the catalyst, where the extension tube includes a cross-sectional area less than a cross-sectional area of the catalyst. A displacement device is coupled to the extension tube and is configured to (i) displace the extension tube relative to the stationary tube downstream towards the catalyst as a temperature in the exhaust system decreases away from a light-off temperature of the catalyst and (ii) retract the extension tube relative to the stationary tube upstream away from the catalyst when the temperature in the exhaust system reaches the light-off temperature of the catalyst.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: April 25, 2017
    Assignee: FCA US LLC
    Inventors: Robert J Jerger, James J Daley, Joseph M Dekar, Andrew Brocker, Wei-Jun Yang, Xuefei Chen, Brett Schubring, Lydell S Powell
  • SYSTEM FOR CONCENTRATING EXHAUST GAS FLOW IN A CATALYST DURING COLD STARTS
    Publication number: 20160138453
    Abstract: An exhaust gas flow concentration system for a catalyst includes an inlet that receives a flow of exhaust gas from an exhaust pipe of an exhaust system, a stationary tube in communication with the inlet and disposed upstream from the catalyst, and an extension tube in communication with the stationary tube and disposed upstream from the catalyst, where the extension tube includes a cross-sectional area less than a cross-sectional area of the catalyst. A displacement device is coupled to the extension tube and is configured to (i) displace the extension tube relative to the stationary tube downstream towards the catalyst as a temperature in the exhaust system decreases away from a light-off temperature of the catalyst and (ii) retract the extension tube relative to the stationary tube upstream away from the catalyst when the temperature in the exhaust system reaches the light-off temperature of the catalyst.
    Type: Application
    Filed: November 19, 2014
    Publication date: May 19, 2016
    Inventors: Robert J. Jerger, James J. Daley, Joseph M. Dekar, Andrew Brocker, Wei-Jun Yang, Xuefei Chen, Brett Schubring, Lydell S. Powell