Patents by Inventor Gary Alan Coulson

Gary Alan Coulson 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 reducing cold start emissions for engines
    Patent number: 11473518
    Abstract: Methods are provided for reducing exhaust gas emissions during a cold-start of an engine. In one example, a method may include generating a flame front in an exhaust port of an exhaust system, heating exhaust gas flowing into an emission control device of the exhaust system and thereby expediting the approach to a light-off temperature of the emission control device, and directing the flame front back to the cylinder as part of a combustion stroke of the four-stroke engine cycle.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: October 18, 2022
    Assignee: Ford Global Technologies, LLC
    Inventors: Xiaogang Zhang, Steven Wooldridge, Peter C. Moilanen, Brad VanDerWege, Gary Alan Coulson, Jennifer Fischer
  • Method and system for engine cold-start
    Patent number: 10550783
    Abstract: Methods and systems are provided for adjusting engine cranking speed, fueling, and spark initiation to increase fuel vaporization during cold-start conditions. In one example, a method may include, during engine cold-start, cranking the engine at a lower speed relative to a nominal cranking speed while injecting fuel and disabling spark for a number of engine cycles, and after the completion of the number of engine cycle increasing the cranking speed and initiating spark.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: February 4, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Gary Alan Coulson, Steven Wooldridge, Gopichandra Surnilla
  • Method and system for engine cold-start
    Patent number: 10107219
    Abstract: Methods and systems are provided for adjusting engine cranking speed, fueling, and spark initiation to increase fuel vaporization during cold-start conditions. In one example, a method may include, during engine cold-start, cranking the engine at a lower speed relative to a nominal cranking speed while injecting fuel and disabling spark for a number of engine cycles, and after the completion of the number of engine cycle increasing the cranking speed and initiating spark.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: October 23, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Gary Alan Coulson, Steven Wooldridge, Gopichandra Surnilla
  • Engine cold-start control
    Patent number: 10087860
    Abstract: Methods and systems are provided for improving engine startability during cold-start conditions, when operating with gasoline fuels, alcohol fuels, or blended fuels. In one example, a method of engine cold-start control may include initiating fuel injection for cylinder combustion with manifold pressure lowered via intake throttle adjustments. The manifold pressure is lowered based on an optimization between cylinder charge reduction and improved fuel boiling at the lower pressure.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: October 2, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Jianwen James Yi, Steven Wooldridge, Alexander O'Connor Gibson, Gary Alan Coulson, Foo Chern Ting
  • METHOD AND SYSTEM FOR ENGINE COLD-START
    Publication number: 20180266351
    Abstract: Methods and systems are provided for adjusting engine cranking speed, fueling, and spark initiation to increase fuel vaporization during cold-start conditions. In one example, a method may include, during engine cold-start, cranking the engine at a lower speed relative to a nominal cranking speed while injecting fuel and disabling spark for a number of engine cycles, and after the completion of the number of engine cycle increasing the cranking speed and initiating spark.
    Type: Application
    Filed: March 17, 2017
    Publication date: September 20, 2018
    Inventors: Gary Alan Coulson, Steven Wooldridge, Gopichandra Surnilla
  • METHOD AND SYSTEM FOR ENGINE COLD-START
    Publication number: 20180266350
    Abstract: Methods and systems are provided for adjusting engine cranking speed, fueling, and spark initiation to increase fuel vaporization during cold-start conditions. In one example, a method may include, during engine cold-start, cranking the engine at a lower speed relative to a nominal cranking speed while injecting fuel and disabling spark for a number of engine cycles, and after the completion of the number of engine cycle increasing the cranking speed and initiating spark.
    Type: Application
    Filed: March 17, 2017
    Publication date: September 20, 2018
    Inventors: Gary Alan Coulson, Steven Wooldridge, Gopichandra Surnilla
  • ENGINE COLD-START CONTROL
    Publication number: 20170037803
    Abstract: Methods and systems are provided for improving engine startability during cold-start conditions, when operating with gasoline fuels, alcohol fuels, or blended fuels. In one example, a method of engine cold-start control may include initiating fuel injection for cylinder combustion with manifold pressure lowered via intake throttle adjustments. The manifold pressure is lowered based on an optimization between cylinder charge reduction and improved fuel boiling at the lower pressure.
    Type: Application
    Filed: August 4, 2015
    Publication date: February 9, 2017
    Inventors: Gopichandra Surnilla, Jianwen James Yi, Steven Wooldridge, Alexander O`Connor Gibson, Gary Alan Coulson, Foo Chern Ting
  • Fuel injector spray pattern
    Patent number: 9410521
    Abstract: A fuel injector having an injector axis, comprising a first nozzle aiming in a first radial direction; a first nozzle pair aiming in radial directions each equally angled relative to the first direction, closest to the first radial direction, and having a longest radial offset; a nozzle second pair in radial directions each equally angled relative to the first direction; and another nozzle aiming opposite the first radial direction and having a shortest radial offset.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: August 9, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Jianwen James Yi, Claudia Olivia Iyer, Steven Wooldridge, Gary Alan Coulson, David Bruce Reiche, Brad Alan VanDerWege
  • FUEL INJECTOR SPRAY PATTERN
    Publication number: 20150020768
    Abstract: A fuel injector having an injector axis, comprising a first nozzle aiming in a first radial direction; a first nozzle pair aiming in radial directions each equally angled relative to the first direction, closest to the first radial direction, and having a longest radial offset; a nozzle second pair in radial directions each equally angled relative to the first direction; and another nozzle aiming opposite the first radial direction and having a shortest radial offset.
    Type: Application
    Filed: July 19, 2013
    Publication date: January 22, 2015
    Inventors: Jianwen James Yi, Claudia Olivia Iyer, Steven Wooldridge, Gary Alan Coulson, David Bruce Reiche, Brad Alan VanDerWege