Patents by Inventor Shinhyuk Joo

Shinhyuk Joo 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).

  • Internal combustion engine with cross-boosting turbochargers
    Patent number: 11156191
    Abstract: An internal combustion engine having two “banks” of cylinders, the “banks” being defined by cross-connection to different turbochargers. The exhaust from one bank of cylinders goes to a first turbocharger, and the exhaust from the other bank of cylinders goes to a second turbocharger. However, the compressed air delivered from the turbochargers is cross-connected to the cylinder banks. This allows a cylinder bank to be boosted with a turbocharger whose compressed air output does not necessarily match the exhaust energy of that cylinder bank.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: October 26, 2021
    Assignee: Southwest Research Institute
    Inventors: Shinhyuk Joo, Christopher James Chadwell
  • Internal Combustion Engine with Cross-Boosting Turbochargers
    Publication number: 20210156342
    Abstract: An internal combustion engine having two “banks” of cylinders, the “banks” being defined by cross-connection to different turbochargers. The exhaust from one bank of cylinders goes to a first turbocharger, and the exhaust from the other bank of cylinders goes to a second turbocharger. However, the compressed air delivered from the turbochargers is cross-connected to the cylinder banks. This allows a cylinder bank to be boosted with a turbocharger whose compressed air output does not necessarily match the exhaust energy of that cylinder bank.
    Type: Application
    Filed: November 22, 2019
    Publication date: May 27, 2021
    Inventors: Shinhyuk Joo, Christopher James Chadwell
  • Dual path (low pressure loop and high pressure loop) EGR for improved air boosting efficiency
    Patent number: 9309804
    Abstract: A method of providing exhaust gas recirculation (EGR) to an air-boosted internal combustion engine. The engine has both a high pressure EGR loop and a low pressure EGR loop. Each EGR loop has a valve that controls the amount of EGR that is delivered to the engine intake from that loop. During low-speed engine conditions, more EGR is delivered to the engine intake from the low pressure EGR loop than from the high pressure EGR loop. During high-speed engine conditions, more EGR is delivered to the engine intake from the high pressure EGR loop than from the low pressure EGR loop.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: April 12, 2016
    Assignee: SOUTHWEST RESEARCH INSTITUTE
    Inventors: Christopher J. Chadwell, Terrence F. Alger, II, Shinhyuk Joo
  • Dual Path (Low Pressure Loop and High Pressure Loop) EGR for Improved Air Boosting Efficiency
    Publication number: 20140260242
    Abstract: A method of providing exhaust gas recirculation (EGR) to an air-boosted internal combustion engine. The engine has both a high pressure EGR loop and a low pressure EGR loop. Each EGR loop has a valve that controls the amount of EGR that is delivered to the engine intake from that loop. During low-speed engine conditions, more EGR is delivered to the engine intake from the low pressure EGR loop than from the high pressure EGR loop. During high-speed engine conditions, more EGR is delivered to the engine intake from the high pressure EGR loop than from the low pressure EGR loop.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: SOUTHWEST RESEARCH INSTITUTE
    Inventors: Christopher J. Chadwell, Terrence F. Alger, II, Shinhyuk Joo