Patents by Inventor Heechang Oh

Heechang Oh 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).

  • Publication number: 20200240371
    Abstract: An engine system includes an engine with a combustion chamber, an intake line in which external air flows, and an exhaust line in which exhaust gas flows. A compressor is disposed in the intake line and rotated with a turbine to compress external air. A first recirculation line is branched off from the exhaust line and merged into the intake line. An EGR cooler cools exhaust gas flowing through the first recirculation line. A second recirculation line is branched off from the first recirculation line. A bypass line is branched off from the first recirculation line between an electric supercharger and the EGR cooler. A three-way valve is disposed where the bypass and first recirculation lines join. An intake valve is disposed in the intake line between where the first recirculation line and intake valve join and where the bypass line and intake valve join.
    Type: Application
    Filed: July 23, 2019
    Publication date: July 30, 2020
    Inventors: Heechang Oh, Yeongseop Park, Kwanhee Lee, Jonghyeok Lee, Jaegu Kang, Dong Hee Han, Seungwoo Hong
  • Publication number: 20200182176
    Abstract: An engine system according to an exemplary embodiment of the present invention may include an engine including a plurality of cylinders; a fuel separator separating into a low-octane fuel and a high-octane fuel based on an octane number; a cylinder deactivation device deactivating some cylinders among the plurality of cylinder based on a driving region; a low-octane fuel injector injecting the low-octane fuel separated by the fuel separator into the plurality of cylinder; a high-octane fuel injector injecting the high-octane fuel separated by the fuel separator into the activated cylinders without being deactivated by the cylinder deactivation device; and a controller configured to control the cylinder deactivation device to deactivate some cylinders or activate all the cylinders, and to control the low-octane fuel injector and the high-octane fuel injector to inject the low-octane fuel or the high-octane fuel into the cylinders.
    Type: Application
    Filed: July 15, 2019
    Publication date: June 11, 2020
    Inventors: Dong Hee Han, Jong Il Park, Kwanhee Lee, Yeongseop Park, Seungwoo Hong, Jaegu Kang, Dong Ho Chu, Heechang Oh
  • Publication number: 20200182170
    Abstract: An engine may include an engine including combustion chambers, an intake line connected to the plurality of combustion chambers and through which outside air supplied to the combustion chamber flows, an intake manifold connected to an intake side of the combustion chamber, an exhaust manifold connected to an exhaust side of the combustion chamber, an exhaust line connected to the exhaust manifold, a turbocharger including a compressor mounted in the intake line, and a turbine rotating in association with the compressor and connected to the exhaust manifold and the exhaust line, a wastgate passage bypassing the turbine from the exhaust manifold, an electric supercharger connected to the compressor of the turbocharger by the intake line, a power device electrically-connected to the electric supercharger and configured for supplying electric power to the electric supercharger or absorbing and storing electric power generated by the electric supercharger, and a controller for controlling the operation of the powe
    Type: Application
    Filed: October 18, 2019
    Publication date: June 11, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Dong Hee HAN, Dong Ho Chu, Kwanhee Lee, Yeongseop Park, Seungwoo Hong, Jaegu Kang, Jungjoo Park, Heechang Oh
  • Publication number: 20200182203
    Abstract: An intake manifold according to an exemplary embodiment of the present invention may include a first intake manifold having a second intake pipe, a third intake pipe, and a first surge tank which temporarily stores intake air flowing through an intake line and distributes the intake air to the second intake pipe and the third intake pipe. A second intake manifold has a first intake pipe, a fourth intake pipe, and a second surge tank which temporarily stores intake air flowing through the intake line and distributes the intake air to the first intake pipe and the fourth intake pipe.
    Type: Application
    Filed: June 11, 2019
    Publication date: June 11, 2020
    Inventors: Seungwoo Hong, Dong Ho Chu, Dong Hee Han, Sangwook Kweon, Gil Hyun Ahn, Kwanhee Lee, Heechang Oh, Yeongseop Park, Jaegu Kang, Sung Bong Park, Dongjin Kang
  • Publication number: 20200182202
    Abstract: An engine system may include an engine including a plurality of intake lines through which outside air supplied to combustion chamber flows, a first electric supercharger and a second electric supercharger disposed respectively in the plurality of intake lines, a first exhaust gas recirculation (EGR) device including a first EGR line branched from an exhaust manifold and joining an intake manifold and a first EGR valve disposed in the first EGR line, and a controller determining an engine target torque according to a driving condition of the engine, setting an engine torque within an operation region of the first EGR device when the engine target torque is in a torque dead band between the operation region of the first EGR device and a non-operation region thereof, and compensating a difference value between the engine target torque and the engine torque by a hybrid electric vehicle (HEV) motor.
    Type: Application
    Filed: July 22, 2019
    Publication date: June 11, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Seungwoo HONG, Jong Il PARK, Heechang OH, Kwanhee LEE, Jaegu KANG, Dong Hee HAN, Yeongseop PARK
  • Patent number: 10655576
    Abstract: A secondary air injection system may include an engine that includes a plurality of cylinders that generate a driving torque of a vehicle by combustion of a fuel; a main line connected to an exhaust manifold or an exhaust line which is connected to the plurality of cylinders; a recirculation line which is branched from the main line and then connected to an intake manifold; an air injection line which is branched from the main line and then connected to an intake line; and an electric supercharger which is provided in the intake line.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: May 19, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Heechang Oh, Jong Il Park, Seungwoo Hong, Yeongseop Park, Dong Hee Han, Hyungbok Lee
  • Patent number: 10634044
    Abstract: An engine may include a plurality of cylinders generating driving torque by burning fuel; a first intake valve disposed in a first intake line in which intake air supplied to the cylinders flows; a second intake valve disposed in a second intake line in which intake air supplied to the cylinders flows; a first electric supercharger disposed in the first intake line; a second electric supercharger disposed in the second intake line; a bypass valve disposed in a bypass line connecting the first intake line and the second intake line; and a controller for controlling the first electric supercharger and the second electric supercharger to be operated in a single mode, a serial mode, or a parallel mode based on an operating region of the engine determined by driving information.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: April 28, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Seungwoo Hong, Jong Il Park, Heechang Oh, Yeongseop Park, Dong Hee Han, Hyungbok Lee
  • Patent number: 10619545
    Abstract: A system of forcibly regenerating a gasoline particulate filter may include an exhaust pipe connected to the engine; a catalyst apparatus mounted on the exhaust pipe; first and second intake lines; first and second electric superchargers disposed on the first and second intake lines; a bypass line connecting a first point of the first supercharger and a second point of the second supercharger to each other; a first intake valve disposed at a downstream of the first point of the first intake line; a second intake valve disposed at an upstream of the second point of the second intake line; a bypass valve disposed on the bypass line; and a regeneration air line connecting the first intake line or the bypass line between the first electric supercharger, the first intake valve, and the bypass valve to the exhaust pipe between the catalyst apparatus and the gasoline particulate filter.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: April 14, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jong Il Park, Seungwoo Hong, Heechang Oh, Yeongseop Park, Dong Hee Han, Hyungbok Lee
  • Publication number: 20200088141
    Abstract: An engine system may include an engine including a plurality of combustion chambers for generating a driving force by combustion of fuel, an exhaust gas purification device mounted in an exhaust line through which exhaust gas discharged from the combustion chamber flows, an EGR gas collecting device configured for collecting a part of the exhaust gas from an exhaust manifold of the engine and supplying the exhaust gas to an intake manifold of the engine, and an EGR gas supply control valve provided between the EGR gas collecting device and the intake manifold and adapted to regulate a flow rate of EGR gas supplied to the intake manifold.
    Type: Application
    Filed: November 30, 2018
    Publication date: March 19, 2020
    Applicants: Hyndai Motor Company, Kia Motors Corporation
    Inventors: Yeongseop PARK, Jong Il Park, Seungwoo Hong, Heechang Oh, Dong Hee Han, Hyungbok Lee
  • Publication number: 20200018215
    Abstract: A system of forcibly regenerating a gasoline particulate filter may include an exhaust pipe connected to the engine; a catalyst apparatus mounted on the exhaust pipe; first and second intake lines; first and second electric superchargers disposed on the first and second intake lines; a bypass line connecting a first point of the first supercharger and a second point of the second supercharger to each other; a first intake valve disposed at a downstream of the first point of the first intake line; a second intake valve disposed at an upstream of the second point of the second intake line; a bypass valve disposed on the bypass line; and a regeneration air line connecting the first intake line or the bypass line between the first electric supercharger, the first intake valve, and the bypass valve to the exhaust pipe between the catalyst apparatus and the gasoline particulate filter.
    Type: Application
    Filed: November 28, 2018
    Publication date: January 16, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jong Il PARK, Seungwoo HONG, Heechang OH, Yeongseop PARK, Dong Hee HAN, Hyungbok LEE
  • Publication number: 20190368414
    Abstract: An engine may include a plurality of cylinders generating driving torque by burning fuel; a first intake valve disposed in a first intake line in which intake air supplied to the cylinders flows; a second intake valve disposed in a second intake line in which intake air supplied to the cylinders flows; a first electric supercharger disposed in the first intake line; a second electric supercharger disposed in the second intake line; a bypass valve disposed in a bypass line connecting the first intake line and the second intake line; and a controller for controlling the first electric supercharger and the second electric supercharger to be operated in a single mode, a serial mode, or a parallel mode based on an operating region of the engine determined by driving information.
    Type: Application
    Filed: October 12, 2018
    Publication date: December 5, 2019
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Seungwoo HONG, Jong Il PARK, Heechang OH, Yeongseop PARK, Dong Hee HAN, Hyungbok LEE
  • Patent number: 10473000
    Abstract: A multiple variable valve lift apparatus disposed at an intake part and an exhaust part of an engine includes: a moving cam rotating together with a camshaft, being movably disposed in an axial direction of the camshaft, and forming a plurality of cams for realizing valve lift to be different from each other and a cam guide protrusion; an operating unit selectively guiding the cam guide protrusion so as to move the moving cam in an axial direction of the camshaft; a controller controlling an operation of the operating unit; and a valve opening/closing unit opened/closed by contacting any one among the plurality of cams.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: November 12, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Soo Hyung Woo, Heechang Oh, Seung Kook Han, Ju Hun Lee, Wootae Kim
  • Publication number: 20190316551
    Abstract: A secondary air injection system may include an engine that includes a plurality of cylinders that generate a driving torque of a vehicle by combustion of a fuel; a main line connected to an exhaust manifold or an exhaust line which is connected to the plurality of cylinders; a recirculation line which is branched from the main line and then connected to an intake manifold; an air injection line which is branched from the main line and then connected to an intake line; and an electric supercharger which is provided in the intake line.
    Type: Application
    Filed: October 4, 2018
    Publication date: October 17, 2019
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Heechang OH, Jong Il Park, Seungwoo Hong, Yeongseop Park, Dong Hee Han, Hyungbok Lee
  • Publication number: 20190309678
    Abstract: An engine system having a secondary air injection device include: an engine having a plurality of cylinders; a first intake line in which intake air supplied into the cylinder flows; a second intake line in which intake air supplied into the cylinder flows; a bypass line connecting the first intake line and the second intake line; a first electric supercharger and a second electric supercharger disposed in the first intake line and the second intake line, respectively; an exhaust manifold connected with the plurality of cylinders; an exhaust line connected with the exhaust manifold such that exhaust gas flows to the exhaust line through the exhaust manifold; an exhaust gas purification device disposed in the exhaust line; and a secondary air injection device injecting air into the exhaust manifold or the exhaust line from the intake line.
    Type: Application
    Filed: October 30, 2018
    Publication date: October 10, 2019
    Inventors: Heechang OH, Jong Il PARK, Hyun Jun LIM, Seungwoo HONG, Joowon LEE, Yeongseop PARK, Dong Hee HAN, Hyungbok LEE
  • Publication number: 20190186427
    Abstract: An engine system includes: an engine having a combustion chamber generating a driving torque by combust of a fuel; a plurality of intake lines through which outside air flows to the combustion chamber; an exhaust manifold connected to the combustion chamber at an exhaust side; at least two electric superchargers disposed on the plurality of intake lines, respectively; and an exhaust gas recirculation (EGR) system including a recirculation line branched from the exhaust manifold and joined to one of the plurality of intake lines and a recirculation valve disposed on the recirculation line.
    Type: Application
    Filed: November 14, 2018
    Publication date: June 20, 2019
    Inventors: Seungwoo HONG, Jong Il PARK, Hyungbok LEE, Heechang OH, Yeongseop PARK, Dong Hee HAN, Joowon LEE
  • Publication number: 20190128219
    Abstract: An engine system may include: an engine including cylinders that generate a driving torque by combusting fuel; a first intake manifold connected to an intake line through which flows intake air into some of the plurality of cylinders; a second intake manifold supplying the intake air to the other cylinders of the plurality of cylinders through the first intake manifold; a first exhaust manifold connected to some cylinders that are connected to the first intake manifold; a second exhaust manifold connected to some other cylinders that are connected to the second intake manifold; a recirculation line branched from the second exhaust manifold to be coupled to the second intake manifold; a recirculation inlet valve disposed at a point at which the recirculation line and the second exhaust manifold are joined; and a manifold connection valve disposed on an intake line between the first intake manifold and the second intake manifold.
    Type: Application
    Filed: December 5, 2017
    Publication date: May 2, 2019
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Dong Hee Han, Jong Il Park, Hyun Jun Lim, Seungwoo Hong, Joowon Lee, Kwanhee Choi, Heechang Oh, Yeongseop Park, Dong.Ho Chu, Hyungbok Lee
  • Publication number: 20190072010
    Abstract: A multiple variable valve lift apparatus disposed at an intake part and an exhaust part of an engine includes: a moving cam rotating together with a camshaft, being movably disposed in an axial direction of the camshaft, and forming a plurality of cams for realizing valve lift to be different from each other and a cam guide protrusion; an operating unit selectively guiding the cam guide protrusion so as to move the moving cam in an axial direction of the camshaft; a controller controlling an operation of the operating unit; and a valve opening/closing unit opened/closed by contacting any one among the plurality of cams.
    Type: Application
    Filed: December 7, 2017
    Publication date: March 7, 2019
    Inventors: Soo Hyung Woo, Heechang Oh, Seung Kook Han, Ju Hun Lee, Wootae Kim