Patents by Inventor Wesley J. Terry

Wesley J. Terry 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).

  • EGR cooler purging apparatus and method
    Patent number: 7281529
    Abstract: An apparatus for an internal combustion engine (200) includes a base engine (201) having an intake system (217) and an exhaust system (209). A turbine (203) has an inlet in fluid communication with the exhaust system (209), and an outlet. A first exhaust gas recirculation (EGR) cooler (211) fluidly communicates with the intake system (217) and the exhaust system (209) of the engine (200). An EGR valve (213) is in fluid communication with the EGR cooler (211), and a purge valve (205) is in fluid communication with the EGR cooler (211) and the outlet of the turbine (203).
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: October 16, 2007
    Assignee: International Engine Intellectual Property Company, LLC
    Inventors: Mae L. Lew, Wesley J. Terry
  • System and method for relieving engine back-pressure by selectively bypassing a stage of a two-stage turbocharger during non-use of EGR
    Patent number: 7000393
    Abstract: A valve (50) selectively shunts exhaust gas around a stage (20T) of a turbocharger turbine (20) under control of a control system that selectively renders an EGR system (38) active and inactive and that develops a value for a set-point of operation for the valve. The control system comprises a first map set (60, 142) containing data that the control system uses to the exclusion of data in a second map set (80, 148) to develop the set-point value when the EGR system is active. When the EGR system is inactive, the control system uses the data in the second map set to the exclusion of the data in the first map set to develop the set-point value.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: February 21, 2006
    Assignee: International Engine Intellectual Property Company, LLC
    Inventors: Terry G. Wood, Grzegorz Siuchta, Wesley J. Terry
  • Flow deflector for a pipe
    Patent number: 6959700
    Abstract: An apparatus includes an inlet (121) at a first end of a pipe (115), wherein a flow of fluid enters the inlet (121). A first outlet (123) is at a second end of the pipe (115). A second outlet (125) is disposed between the first end and the second end of the pipe (115). A flow deflector (201) deflects a first part of the flow out of the second outlet (125). A second part of the flow exits the first outlet (123).
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: November 1, 2005
    Assignee: International Engine Intellectual Property Company, LLC
    Inventors: Shouhao Wu, Yuanxian Zhu, Wesley J. Terry, Laura Ricart-Ugaz
  • Control of a variable geometry turbocharger by sensing exhaust pressure
    Patent number: 6418719
    Abstract: There is provided a system and method for using an engine's exhaust back pressure to control a variable geometry turbocharger. The control system determines a desired exhaust back pressure based on engine speed and engine load. The desired exhaust back pressure is compared with a measured exhaust back pressure to determine the difference between the measured and desired exhaust back pressures. The difference value is used to determine the duty cycle. In an alternate embodiment, the exhaust gas pressure is used to adjust the duty cycle determined by other operating parameters. A base duty cycle is determined from the engine speed and the engine load. The difference between the measured and desired exhaust back pressures is used to determine an exhaust pressure control duty cycle. The base duty cycle is then adjusted by the exhaust pressure control duty cycle to give a turbocharger duty cycle.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: July 16, 2002
    Assignee: International Engine Intellectual Property Company, L.L.C.
    Inventors: Wesley J. Terry, Mathew J. Seiberlich, Brian J. Murphy
  • Control of a variable geometry turbocharger by sensing exhaust pressure
    Publication number: 20010032465
    Abstract: There is provided a system and method for using an engine's exhaust back pressure to control a variable geometry turbocharger. The control system determines a desired exhaust back pressure based on engine speed and engine load. The desired exhaust back pressure is compared with a measured exhaust back pressure to determine the difference between the measured and desired exhaust back pressures. The difference value is used to determine the duty cycle. In an alternate embodiment, the exhaust gas pressure is used to adjust the duty cycle determined by other operating parameters. A base duty cycle is determined from the engine speed and the engine load. The difference between the measured and desired exhaust back pressures is used to determine an exhaust pressure control duty cycle. The base duty cycle is then adjusted by the exhaust pressure control duty cycle to give a turbocharger duty cycle.
    Type: Application
    Filed: January 19, 2001
    Publication date: October 25, 2001
    Inventors: Wesley J. Terry, Mathew J. Seiberlich, Brian J. Murphy