Patents by Inventor Yong Deok Park

Yong Deok 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).

  • Patent number: 11149655
    Abstract: Disclosed are a high pressure fuel pump and a liquid petroleum direct injection system including the same. The high pressure fuel pump includes a body having an intake port and an exhaust port, and provided therein with a pressing device configured to press a portion of fuel at a high pressure, a spill valve coupled to one side of the body to control a supply flow rate and exhaust pressure of the fuel, and a cover coupled to an upper portion of the body and having a recovery port for recovering a portion of the fuel to a bombe. The cover has a dome shape that is convex upward. The cover collects gaseous fuel generated by heat of an engine when the engine is turned off after driving, that is, collects vapor to recover the vapor to the bombe, thereby improving the restartability.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: October 19, 2021
    Assignee: MOTONIC CORPORATION
    Inventors: Wan Jae Jeon, Yong Deok Park, Dae Yong Kim, Dong Sub Kim
  • Patent number: 10962994
    Abstract: Provided is a pressure control method for a high-pressure regulator to prevent internal leak, and the high-pressure shut-off valve so as to minimize an internal leak, due to high-pressure gas remaining in a high-pressure fuel line when a valve of a gas storage tank is shut off, caused by a pressure difference between a front end portion and a rear end portion of the high-pressure regulator introducing or discharging high-pressure gas. Accordingly, the convenience for connecting work is provided, the high safety is ensured, and the high-pressure regulator is used with the high reliability.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: March 30, 2021
    Assignee: MOTONIC CORPORATION
    Inventors: Wan Jae Jeon, Jun Hyeok Lee, Jae Kyung Kim, Yong Deok Park, Gu Ho Kim, Jae Kwang Kim, Yeong Dong Park, Yong Heon Kang
  • Publication number: 20210079853
    Abstract: Disclosed are a high pressure fuel pump and a liquid petroleum direct injection system including the same. The high pressure fuel pump includes a body having an intake port and an exhaust port, and provided therein with a pressing device configured to press a portion of fuel at a high pressure, a spill valve coupled to one side of the body to control a supply flow rate and exhaust pressure of the fuel, and a cover coupled to an upper portion of the body and having a recovery port for recovering a portion of the fuel to a bombe. The cover has a dome shape that is convex upward. The cover collects gaseous fuel generated by heat of an engine when the engine is turned off after driving, that is, collects vapor to recover the vapor to the bombe, thereby improving the restartability.
    Type: Application
    Filed: August 10, 2020
    Publication date: March 18, 2021
    Inventors: Wan Jae JEON, Yong Deok PARK, Dae Yong KIM, Dong Sub KIM
  • Publication number: 20210041898
    Abstract: Proposed are a pressure control method for a high-pressure regulator to prevent internal leak, and a high-pressure shut-off valve so as to minimize an internal leak, due to high-pressure gas remaining in a high-pressure fuel line when a valve of a gas storage tank is shut off, caused by a pressure difference between a front end portion and a rear end portion of the high-pressure regulator introducing or discharging high-pressure gas. Accordingly, the convenience for connecting work is provided, the high safety is ensured, and the high-pressure regulator is used with the high reliability.
    Type: Application
    Filed: October 19, 2020
    Publication date: February 11, 2021
    Inventors: Wan Jae JEON, Jun Hyeok LEE, Jae Kyung KIM, Yong Deok PARK, Gu Ho KIM, Jae Kwang KIM, Yeong Dong PARK, Yong Heon KANG
  • Patent number: 10753316
    Abstract: Provided is a high pressure fuel pump that smoothly achieves fuel supply while running and quickly relieves vapor generated during a restart by a piston operation of a high pressure fuel pump to improve a startup delay phenomenon, and an LPDI system including the same.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: August 25, 2020
    Assignee: MOTONIC CORPORATION
    Inventors: Wan Jae Jeon, Jun Hyeok Lee, Yong Deok Park, Dae Yong Kim, Seung Jin Park
  • Publication number: 20200159259
    Abstract: Provided is a pressure control method for a high-pressure regulator to prevent internal leak, and the high-pressure shut-off valve so as to minimize an internal leak, due to high-pressure gas remaining in a high-pressure fuel line when a valve of a gas storage tank is shut off, caused by a pressure difference between a front end portion and a rear end portion of the high-pressure regulator introducing or discharging high-pressure gas. Accordingly, the convenience for connecting work is provided, the high safety is ensured, and the high-pressure regulator is used with the high reliability.
    Type: Application
    Filed: March 29, 2019
    Publication date: May 21, 2020
    Inventors: Wan Jae JEON, Jun Hyeok LEE, Jae Kyung KIM, Yong Deok PARK, Gu Ho KIM, Jae Kwang KIM, Yeong Dong PARK, Yong Heon KANG
  • Publication number: 20190293028
    Abstract: Provided is a high pressure fuel pump that smoothly achieves fuel supply while running and quickly relieves vapor generated during a restart by a piston operation of a high pressure fuel pump to improve a startup delay phenomenon, and an LPDI system including the same.
    Type: Application
    Filed: January 4, 2019
    Publication date: September 26, 2019
    Inventors: WAN JAE JEON, JUN HYEOK LEE, YONG DEOK PARK, DAE YONG KIM, SEUNG JIN PARK
  • Publication number: 20140123947
    Abstract: An LPG direct injection system may include an engine receiving liquefied petroleum gas (LPG) into a combustion chamber thereof, an injector adapted to inject the LPG into the combustion chamber of the engine, a high pressure fuel pump supplying high pressured LPG to the injector, a fuel tank storing the LPG for supplying to the engine, a regulator apparatus receiving the LPG from the fuel tank, controlling pressure of the received LPG, and delivering a controlled LPG to the high pressure fuel pump, a fuel supply line sequentially connecting the fuel tank, the regulator apparatus, the high pressure fuel pump, and the injector so as to supply the LPG stored in the fuel tank to the engine, and a fuel return line returning an LPG that remains in the high pressure fuel pump after pumping thereof to the fuel tank.
    Type: Application
    Filed: January 24, 2013
    Publication date: May 8, 2014
    Applicants: Hyundai Motor Company, Motonic Corporation, Kia Motors Corporation
    Inventors: Jin Oh Song, Sung Kun Kim, Chulsoo Yook, Yong Deok Park, One-Gil Lee