Patents by Inventor Ju-Yeol Park

Ju-Yeol Park 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).

  • Continuously variable valve lift system for engines
    Patent number: 7261074
    Abstract: Disclosed herein is a continuously variable valve lift system for an engine which is able to variably adjust valve lift and opening duration of intake and exhaust valves operated by the rotation of a cam shaft. The continuously variable valve lift system of the present invention has a compact structure, so that space required for the system in a cylinder head is reduced. Furthermore, the continuously variable valve lift system is provided at a position level with or below a position at which the cam shaft is installed, thus reducing the overall height of the cylinder head, thereby reducing the volume of the engine.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: August 28, 2007
    Assignee: Hyundai Motor Company
    Inventors: Dae-Sung Kim, Woo-Tae Kim, Ju-Yeol Park, Back-Sik Kim, In-Gee Suh, Dong-Hee Han, Seung-Yeon Yang
  • Continuously variable valve lift system for engines
    Publication number: 20070107681
    Abstract: Disclosed herein is a continuously variable valve lift system for an engine which is able to variably adjust valve lift and opening duration of intake and exhaust valves operated by the rotation of a cam shaft. The continuously variable valve lift system of the present invention has a compact structure, so that space required for the system in a cylinder head is reduced. Furthermore, the continuously variable valve lift system is provided at a position level with or below a position at which the cam shaft is installed, thus reducing the overall height of the cylinder head, thereby reducing the volume of the engine.
    Type: Application
    Filed: December 8, 2005
    Publication date: May 17, 2007
    Inventors: Dae-Sung Kim, Woo-Tae Kim, Ju-Yeol Park, Back-Sik Kim, In-Gee Suh, Dong-Hee Han, Seung-Yeon Yang