Patents by Inventor Yong Yun Hwang

Yong Yun Hwang 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).

  • Patent number: 7926465
    Abstract: An impulse charger for motor vehicle engines include impulse valves driven using driving force continuously generated by a driving apparatus so as to be instantaneously opened and closed at a high speed by a link unit in which link members are interconnected, and in which the impulse valves for all cylinders are simultaneously driven. Thus, the impulse charger provides simple drive control, reduction in necessary components, and an efficient mounting space, guarantees easy manufacturing and mounting at a low cost, and prevents noise from being generated when the impulse valves are operated.
    Type: Grant
    Filed: November 29, 2008
    Date of Patent: April 19, 2011
    Assignee: Hyundai Motor Company
    Inventors: In Sang Ryu, Jin Yong Kong, Yong Yun Hwang, Seong Hyuk Kang, Woo Tae Kim, Seung Woo Lee
  • Publication number: 20090151802
    Abstract: An impulse charger for motor vehicle engines include impulse valves driven using driving force continuously generated by a driving apparatus so as to be instantaneously opened and closed at a high speed by a link unit in which link members are interconnected, and in which the impulse valves for all cylinders are simultaneously driven. Thus, the impulse charger provides simple drive control, reduction in necessary components, and an efficient mounting space, guarantees easy manufacturing and mounting at a low cost, and prevents noise from being generated when the impulse valves are operated.
    Type: Application
    Filed: November 29, 2008
    Publication date: June 18, 2009
    Applicant: Hyundai Motor Company
    Inventors: In Sang RYU, Jin Yong Kong, Yong Yun Hwang, Seong Hyuk Kang, Woo Tae Kim, Seung Woo Lee
  • Publication number: 20080276887
    Abstract: An exhaust gas recirculation system. A water jacket in a cylinder block is configured for coolant to flow therein. A cylinder head is attached to the cylinder block. A cylinder is disposed in the cylinder block and the cylinder head. An intake manifold runner is connected to an intake hole of the cylinder. An exhaust manifold runner is connected to an exhaust hole of the cylinder. A first recirculation gas pathway is disposed in the cylinder block, and receives recirculated exhaust gas from the exhaust manifold runner. A second recirculation gas pathway is disposed in the cylinder head, and has a first end connected to the first recirculation gas pathway and a second end connected to the intake manifold runner. A recirculation valve, mounted at the second recirculation gas pathway, controls supply of the recirculated exhaust gas to the intake manifold runner. An engine control unit controls the recirculation valve.
    Type: Application
    Filed: September 26, 2007
    Publication date: November 13, 2008
    Inventors: Youngmin Sohn, Wootae Kim, Chun Woo Lee, Myong Ho Kim, Ingee Suh, Seung Woo Lee, Sung Wook Lee, Jin Hong Kim, Yong Yun Hwang
  • Patent number: 7438063
    Abstract: An exhaust gas recirculation system. A water jacket in a cylinder block is configured for coolant to flow therein. A cylinder head is attached to the cylinder block. A cylinder is disposed in the cylinder block and the cylinder head. An intake manifold runner is connected to an intake hole of the cylinder. An exhaust manifold runner is connected to an exhaust hole of the cylinder. A first recirculation gas pathway is disposed in the cylinder block, and receives recirculated exhaust gas from the exhaust manifold runner. A second recirculation gas pathway is disposed in the cylinder head, and has a first end connected to the first recirculation gas pathway and a second end connected to the intake manifold runner. A recirculation valve, mounted at the second recirculation gas pathway, controls supply of the recirculated exhaust gas to the intake manifold runner. An engine control unit controls the recirculation valve.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: October 21, 2008
    Assignee: Hyundai Motor Company
    Inventors: Youngmin Sohn, Wootae Kim, Chun Woo Lee, Myong Ho Kim, Ingee Suh, Seung Woo Lee, Sung Wook Lee, Jin Hong Kim, Yong Yun Hwang