Patents by Inventor Cheong Gi PARK

Cheong Gi 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: 9745922
    Abstract: A system for supplying fuel to an engine of a ship. The system includes a high pressure pump pressurizing a liquefied natural gas (LNG) and supplying the pressurized LNG to the engine, a hydraulic motor driving the high pressure pump and a chamber carrying the high pressure pump and the hydraulic motor. The chamber is substantially free of electric sparks.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: August 29, 2017
    Assignee: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD.
    Inventors: Nak Hyun Kim, Dong Chan Kim, Cheong Gi Park, Je Heon Jung
  • Patent number: 9738368
    Abstract: Disclosed herein is arrangement of a fuel gas tank in a fuel gas supply system that supplies liquefied natural gas to an engine. In accordance with one aspect of the invention, a fuel gas supply system of a ship includes an engine generating driving force using fuel gas; and a fuel gas tank storing the fuel gas to be supplied to the engine, wherein the engine is disposed in an engine room placed at the stern of the ship and the fuel gas tank is disposed above the engine room.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: August 22, 2017
    Assignee: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD.
    Inventors: Joon Chae Lee, Dong Eok Kang, Cheong Gi Park
  • Publication number: 20170217554
    Abstract: A fuel supply control system and control method are disclosed. In a fuel supply control system of a high-pressure gas injection engine provided in a ship or an offshore structure, the fuel supply control system of the present invention includes: a gas supply mode for supplying gas to the high-pressure gas injection engine through a gas supplying part for receiving LNG from a storage tank so as to compress and vaporize the LNG; and an oil supply mode for supplying oil as fuel to the high-pressure gas injection engine, wherein the mode is switched into the oil supply mode during an emergency including a device malfunction in the gas supply mode such that the oil supply mode can be configured as a redundancy of the gas supply mode.
    Type: Application
    Filed: July 20, 2015
    Publication date: August 3, 2017
    Applicant: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD.
    Inventors: Joon Chae LEE, Dong Eok KANG, Cheong Gi PARK
  • Patent number: 9683517
    Abstract: Disclosed herein are an apparatus and a method for supplying a fuel to an engine of a ship. The apparatus for supplying a fuel to an engine of a ship includes: a high pressure pump pressurizing a liquefied natural gas (LNG) and supplying the pressurized LNG to the engine; a hydraulic motor driving the high pressure pump; and a lubricating pump supplying lubricating oil to the high pressure pump.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: June 20, 2017
    Assignee: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD.
    Inventors: Nak Hyun Kim, Dong Chan Kim, Cheong Gi Park, Je Heon Jung
  • Publication number: 20170050713
    Abstract: Disclosed herein is a fuel gas supply system (FGSS) of a ship supplying natural gas to an engine as fuel. The fuel gas supply system of a ship may include: a cargo tank storing a liquid cargo; a vent mast connected to the cargo tank; a fuel supply line connected to the engine to supply fuel; and a vent line connected to the fuel supply line, in which the vent line may be connected to the vent mast.
    Type: Application
    Filed: April 28, 2015
    Publication date: February 23, 2017
    Applicant: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD.
    Inventors: Joon Chae LEE, Dong Eok KANG, Cheong Gi PARK
  • Publication number: 20160356424
    Abstract: Disclosed herein is a boil-off gas treatment system. The boil-off gas treatment system includes a compressor compressing boil-off gas generated in an LNG storage tank of a ship or a floating structure, a heat exchanger cooling the compressed boil-off gas through heat exchange with boil-off gas to be supplied to the compressor, an expansion unit performing adiabatic expansion of the boil-off gas cooled by the heat exchanger, a gas-liquid separator performing gas/liquid separation of the boil-off gas subjected to adiabatic expansion by the expansion unit and supplying liquefied natural gas to the LNG storage tank, and a bypass line through which the boil-off gas subjected to adiabatic expansion is supplied from a downstream side of the expansion unit to a downstream side of the gas-liquid separator.
    Type: Application
    Filed: February 27, 2015
    Publication date: December 8, 2016
    Applicant: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD.
    Inventors: Joon Chae LEE, Nam Soo KIM, Je Heon JUNG, Cheong Gi PARK
  • Publication number: 20160096609
    Abstract: Disclosed herein is arrangement of a fuel gas tank in a fuel gas supply system that supplies liquefied natural gas to an engine. In accordance with one aspect of the invention, a fuel gas supply system of a ship includes an engine generating driving force using fuel gas; and a fuel gas tank storing the fuel gas to be supplied to the engine, wherein the engine is disposed in an engine room placed at the stern of the ship and the fuel gas tank is disposed above the engine room.
    Type: Application
    Filed: November 6, 2014
    Publication date: April 7, 2016
    Inventors: Joon Chae Lee, Dong Eok Kang, Cheong Gi Park
  • Publication number: 20150184617
    Abstract: A system for supplying fuel to an engine of a ship. The system includes a high pressure pump pressurizing a liquefied natural gas (LNG) and supplying the pressurized LNG to the engine, a hydraulic motor driving the high pressure pump and a chamber carrying the high pressure pump and the hydraulic motor. The chamber is substantially free of electric sparks.
    Type: Application
    Filed: March 16, 2015
    Publication date: July 2, 2015
    Inventors: Nak Hyun KIM, Dong Chan KIM, Cheong Gi PARK, Je Heon JUNG
  • Publication number: 20150121859
    Abstract: Disclosed herein are an apparatus and a method for supplying a fuel to an engine of a ship. The apparatus for supplying a fuel to an engine of a ship includes: a high pressure pump pressurizing a liquefied natural gas (LNG) and supplying the pressurized LNG to the engine; a hydraulic motor driving the high pressure pump; and a lubricating pump supplying lubricating oil to the high pressure pump.
    Type: Application
    Filed: October 23, 2014
    Publication date: May 7, 2015
    Inventors: Nak Hyun KIM, Dong Chan KIM, Cheong Gi PARK, Je Heon JUNG