Patents by Inventor Yong Wook Yu

Yong Wook Yu 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).

  • Engine brake and engine provided with the same
    Patent number: 8240278
    Abstract: An engine brake may include a rocker shaft, a rocker arm pivoting around the rocker shaft, an actuator piston disposed to the rocker arm and selectively protruded there from, a stopper disposed to a corresponding position of the actuator piston for the rocker arm to open a valve when the actuator piston is protruded and a hydraulic pressure supply portion selectively supplying hydraulic pressure to the actuator piston.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: August 14, 2012
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jae Hee Jeon, Yong Wook Yu
  • ENGINE BRAKE AND ENGINE PROVIDED WITH THE SAME
    Publication number: 20110114060
    Abstract: An engine brake may include a rocker shaft, a rocker arm pivoting around the rocker shaft, an actuator piston disposed to the rocker arm and selectively protruded there from, a stopper disposed to a corresponding position of the actuator piston for the rocker arm to open a valve when the actuator piston is protruded and a hydraulic pressure supply portion selectively supplying hydraulic pressure to the actuator piston.
    Type: Application
    Filed: May 21, 2010
    Publication date: May 19, 2011
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: JAE HEE JEON, YONG WOOK YU