Patents by Inventor Wook Hyeon Yoon

Wook Hyeon Yoon 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).

  • Injection system of a fuel injection pump
    Patent number: 9074568
    Abstract: The injection system of a fuel injection pump is provided. In the injection system of a fuel injection pump, a plunger performs a reciprocating slide motion in the axial direction inside of the plunger chamber of a barrel for compressing fuel. The plunger has a release groove and a control edge. A spill port is formed in the wall surface of the barrel. A damping groove is formed in the upper-part outer circumference of the control edge and provides a fine fuel flow path. The damping groove meets the spill port in advance to form the fine flow of fuel from the plunger chamber to the spill port before the control edge of the plunger meets the spill port to release pressure.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: July 7, 2015
    Assignee: HYUNDAI HEAVY INDUSTRIES CO., LTD.
    Inventors: Sang Lip Kang, Ju Tae Kim, Kwang Hean An, Dong Hun Kim, Wook Hyeon Yoon, Yong Seok Lee, Hyun Chun Park
  • Fuel injection pump including a variable pressure compartment
    Patent number: 9051925
    Abstract: A fuel injection pump having a variable pressure chamber which can adjust a fuel injection timing according to each engine load with a simple structure and a lower manufacture cost compared to the conventional injection pump without a separate apparatus for moving a barrel as well as not modifying a shape of a plunger.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: June 9, 2015
    Assignee: HYUNDAI HEAVY INDUSTRIES CO., LTD.
    Inventors: Deuk-Jin Park, Ju-Tae Kim, Dong-Hun Kim, Wook-Hyeon Yoon, Byong-Seok Kim, Tae-Hyung Park, Eun Ha, Beom-Yong No
  • FUEL INJECTION PUMP INCLUDING A VARIABLE PRESSURE COMPARTMENT
    Publication number: 20130156620
    Abstract: The present invention relates to a fuel injection pump having a variable pressure chamber which can adjust a fuel injection timing according to each engine load with a simple structure and a lower manufacture cost compared to the conventional injection pump without a separate apparatus for moving a barrel as well as not modifying a shape of a plunger.
    Type: Application
    Filed: March 21, 2011
    Publication date: June 20, 2013
    Applicant: Hyundai Heavy Industries, Co., Ltd.
    Inventors: Deuk-Jin Park, Ju-Tae Kim, Dong-Hun Kim, Wook-Hyeon Yoon, Byong-Seok Kim, Tae-Hyung Park, Eun Ha, Beom-Yong No
  • INJECTION SYSTEM OF A FUEL INJECTION PUMP
    Publication number: 20130015274
    Abstract: The injection system of a fuel injection pump is provided. In the injection system of a fuel injection pump, a plunger performs a reciprocating slide motion in the axial direction inside of the plunger chamber of a barrel for compressing fuel. The plunger has a release groove and a control edge. A spill port is formed in the wall surface of the barrel. A damping groove is formed in the upper-part outer circumference of the control edge and provides a fine fuel flow path. The damping groove meets the spill port in advance to form the fine flow of fuel from the plunger chamber to the spill port before the control edge of the plunger meets the spill port to release pressure.
    Type: Application
    Filed: September 13, 2010
    Publication date: January 17, 2013
    Applicant: HYUNDAI HEAVY INDUSTRIES CO., LTD.
    Inventors: Sang Lip Kang, Ju Tae Kim, Kwang Hean An, Dong Hun Kim, Wook Hyeon Yoon, Yong Seok Lee, Hyun Chun Park