Patents by Inventor Sihun Lee

Sihun Lee 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).

  • Cylinder head having an integrally formed port-exhaust manifold assembly
    Patent number: 8047177
    Abstract: A cylinder head having a plurality of integrally formed port-exhaust manifold assemblies therein, wherein the port-exhaust manifold assembly is integrally formed in the cylinder head by extending a plurality of exhaust port of an engine to function as an exhaust manifold and the plurality of the port-exhaust manifold assemblies is arranged in a triangle when each center portion of outlet portions thereof are connected.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: November 1, 2011
    Assignee: Hyundai Motor Company
    Inventors: Jin Kook Kong, Sihun Lee, Wootae Kim, Yooshin Cho
  • Cylinder head having an integrally formed port-exhaust manifold assembly
    Publication number: 20090151687
    Abstract: A cylinder head having a plurality of integrally formed port-exhaust manifold assemblies therein, wherein the port-exhaust manifold assembly is integrally formed in the cylinder head by extending a plurality of exhaust port of an engine to function as an exhaust manifold and the plurality of the port-exhaust manifold assemblies is arranged in a triangle when each center portion of outlet portions thereof are connected.
    Type: Application
    Filed: December 11, 2008
    Publication date: June 18, 2009
    Applicant: Hyundai Motor Company
    Inventors: Jin Kook KONG, Sihun Lee, Wootae Kim, Yooshin Cho
  • Intake-air system of V-type engine
    Patent number: 7182060
    Abstract: An intake box having an appropriate size to reduce intake noise is mounted at an upper portion of an engine by using the structural feature of a V-type engine, thereby minimizing the intake noise. The cross-sectional area of a relative intake passage is further expanded to decrease the intake resistance, resulting in an improvement of the engine output.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: February 27, 2007
    Assignee: Hyundai Motor Company
    Inventor: Sihun Lee
  • Intake-air system of V-type engine
    Publication number: 20060000439
    Abstract: An intake box having an appropriate size to reduce intake noise is mounted at an upper portion of an engine by using the structural feature of a V-type engine, thereby minimizing the intake noise. The cross-sectional area of a relative intake passage is further expanded to decrease the intake resistance, resulting in an improvement of the engine output.
    Type: Application
    Filed: June 30, 2005
    Publication date: January 5, 2006
    Inventor: Sihun Lee