Patents by Inventor Dong Ho Chu
Dong Ho Chu 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).
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Publication number: 20190338734Abstract: An exhaust gas control valve of an engine, which includes a plurality of engine exhausts ports, a catalytic converter, a plurality of combustion chambers, and an Exhaust Gas Recirculation (EGR) line, includes: a valve body having an inflow port communicating with only some of the plurality of engine exhaust ports, an exhaust port communicating with the catalytic converter and a recirculation port communicating with the EGR line; and a valve flap assembly rotatably installed at the valve body to block one of the exhaust port and the recirculation port while opening the other of the exhaust port and the recirculation port.Type: ApplicationFiled: August 30, 2018Publication date: November 7, 2019Inventors: Dong Ho CHU, Hyeon Ho KIM, Hyuk IM, Dong Hee HAN
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Publication number: 20190316512Abstract: A cooling system for an engine, may include a low temperature radiator; an intercooler installed to receive a coolant cooled from the low temperature radiator and restore the coolant to the low temperature radiator again after heat exchange; a water pump installed to supply the coolant to the intercooler by pumping the coolant cooled from the low temperature radiator; a motorized supercharger installed to receive the coolant from the intercooler; and a reservoir installed to store the coolant passing through the motorized supercharger and deliver the coolant to a coolant line between the low temperature radiator and the water pump.Type: ApplicationFiled: August 31, 2018Publication date: October 17, 2019Applicants: Hyundai Motor Company, Kia Motors Corp.Inventor: Dong Ho CHU
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Patent number: 10408124Abstract: A control method for a turbocharger system may include controlling opening levels of an intake bypass valve, an exhaust bypass valve, and a throttle valve according to a driving condition of a vehicle by a controller, and executing a series of commands by the controller, including determining whether an engine rpm satisfies a set low/medium speed condition, determining whether an acceleration request condition is satisfied when the engine rpm satisfies the set low/medium speed condition, closing the intake bypass valve, and controlling an opening angle of the exhaust bypass valve according to the acceleration request condition.Type: GrantFiled: October 29, 2014Date of Patent: September 10, 2019Assignee: Hyundai Motor CompanyInventors: Yoon Joo Kim, Seung Kook Han, Il Joong Hwang, Dong Ho Chu, Jong Il Park, Dong Hee Han, Hyuk Im, Hyun Jun Lim
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Patent number: 10344688Abstract: An apparatus for controlling an engine includes an engine including a plurality of combustion chambers for generating driving torque by burning a fuel, a high-capacity turbocharger including a turbine rotated by the exhaust gas exhausted from the combustion chambers and a compressor rotated together with the turbine for compressing exhaust gas exhausted from the combustion chamber, an electric supercharger including a motor and an electric compressor operated by the motor, a throttle valve for adjusting an intake air amount supplied to the combustion chamber, a driving information detector for detecting driving information including a required torque and an engine speed, and a controller for determining a driving region of the engine from the driving information detected by the driving information detector, and controlling engine torque by adjusting an opening of the throttle valve and an output of the motor according to the driving region of the engine.Type: GrantFiled: November 3, 2016Date of Patent: July 9, 2019Assignee: Hyundai Motor CompanyInventors: Dong Hee Han, Joowon Lee, Hyungbok Lee, Dong Ho Chu, Jong Il Park
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Publication number: 20190128219Abstract: 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: ApplicationFiled: December 5, 2017Publication date: May 2, 2019Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Dong Hee Han, Jong Il Park, Hyun Jun Lim, Seungwoo Hong, Joowon Lee, Kwanhee Choi, Heechang Oh, Yeongseop Park, Dong.Ho Chu, Hyungbok Lee
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Publication number: 20190078506Abstract: A recirculation valve configured to open or close a recirculation line connected to a front stage of a compressor from a rear stage of the compressor on an intake line of an engine is provided. The valve includes a recirculation valve adaptor that has an inlet into which gas is introduced formed in a bottom thereof, having an outlet from which the gas is discharged formed in a first side of a side surface thereof, and having an inner space connected to the inlet and the outlet and in which the gas flows. A plug is configured to open or close the inlet and the outlet. The inner space has an asymmetric shape in which a width in a horizontal direction is increased in a direction from the other side of an inside surface to one side thereof.Type: ApplicationFiled: November 30, 2017Publication date: March 14, 2019Inventors: Dong Ho Chu, Jeong Il Lee, Jeong Kyu Lim
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Patent number: 10190532Abstract: An air intake structure for a vehicle engine includes: a variable flap rotatably provided in an intake air passage so as to control a cross-sectional area of intake air flow; a port plate provided to a downstream of the variable flap, and generating displacement in cooperation with the variable flap; a driving unit supplying a driving force for generating displacement of both the variable flap and the port plate; and a controller determining a rotation angle of the variable flap in accordance with an operating range of an engine, and controlling the rotation angle of the variable flap by driving the driving unit.Type: GrantFiled: August 8, 2016Date of Patent: January 29, 2019Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Dong Ho Chu, Yang Geol Lee
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Patent number: 10184435Abstract: The present disclosure provides a fuel injection unit for an internal combustion engine. The fuel injection unit includes: a separator that is disposed in an intake port to supply air into a combustion chamber formed in an engine head, and that divides a channel for air into an upper channel and a lower channel; a blade disposed ahead of the separator and opening or closing the upper channel or the lower channel by rotating; and a first injector disposed over the intake port. In particular, when the first injector injects fuel, the blade does not interfere with the fuel.Type: GrantFiled: November 28, 2016Date of Patent: January 22, 2019Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventor: Dong Ho Chu
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Patent number: 10174727Abstract: An intake air control apparatus for a vehicle may include a valve flap provided in an air intake passage, the valve flap having a rotation shaft facing opposite sides of the air intake passage, to control a cross-sectional area of air intake flow according to a rotation angle thereof about the rotation shaft; a driving device supplying a driving force to the valve flap; and a port plate being provided in the air intake passage, with a longitudinal direction thereof being in parallel to a longitudinal direction of the air intake passage, the port plate dividing the air intake passage into an upper passage and a lower passage, wherein based on a width direction, at least a portion of the port plate has a height changing portion that changes a height of the port plate from a lower internal wall of the air intake passage.Type: GrantFiled: June 14, 2017Date of Patent: January 8, 2019Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Dong Ho Chu, Yang Geol Lee, Yong Hoon Kim, Sung Jun Kim
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Patent number: 10145333Abstract: A cylinder head integrated with an exhaust manifold and an exhaust gas recirculation (EGR) cooler may include an exhaust manifold including a plurality of connection parts connected to a plurality of exhaust ports, respectively, and an extension part connected to a plurality of connection parts, a water jacket provided at a location adjacent to the exhaust manifold, and an EGR cooler communicating with the water jacket and configured to surround an outside of the extension part of the exhaust manifold.Type: GrantFiled: August 25, 2016Date of Patent: December 4, 2018Assignees: Hyundai Motor Company, Kia Motors Corp.Inventor: Dong Ho Chu
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Patent number: 10087827Abstract: A valve device for a vehicle may include a pneumatic valve having first and second chambers in which respective pressures thereof are regulated, and a pressure regulation valve coupled to the pneumatic valve, the pressure regulation valve communicating with the first chamber, including a positive pressure side opening and a negative pressure side opening, and selectively opening and closing the positive pressure side opening and the negative pressure side opening to regulate the pressure in the first chamber.Type: GrantFiled: October 5, 2016Date of Patent: October 2, 2018Assignees: Hyundai Motor Company, Kia Motors Corp.Inventors: Dong Ho Chu, Yang Geol Lee, Woo Young Choi, Jeong Kyu Lim
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Patent number: 10018105Abstract: The present disclosure provides an engine structure for a vehicle. The engine structure includes: an intake port, a port plate provided in the single flow path of the intake port, and an injector. The port plate is longitudinally parallel to the flow path of the intake port so as to divide the flow path of the intake port into upper and lower flow paths, and the port plate includes an extension portion formed on part of a downstream end of the port plate such that the extension portion of the downstream end of the port plate extends longer than other portion of the downstream end of the port plate. In particular, the injector is provided in the intake port, and sprays fuel beyond the extension portion so as to inhibit the fuel from adhering to the port plate.Type: GrantFiled: July 25, 2016Date of Patent: July 10, 2018Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Dong Ho Chu, Nahm Roh Joo, Yang Geol Lee, Jong Il Park, Yong Hoon Kim, Myung Gu Ha, Dong Hee Han
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Patent number: 10006415Abstract: An auxiliary cooling system which is provided separately from an engine cooling passage in a vehicle provided with a turbo engine. The auxiliary cooling system includes a first line which connects a radiator and an intercooler to each other and on which an electric water pump is installed. A second line connects the intercooler and an intake manifold. A third line connects the intake manifold and the radiator, and a bypass valve selectively directly transfers cooling water, heated while passing through a turbine housing provided on a path of the third line, to the radiator or transfers the cooling water to the radiator via an engine block or a heater. Cooling water discharged from the intake manifold passes through an ETC (electronic throttle control) unit and thus reduces a temperature of intake air passing through the ETC unit.Type: GrantFiled: November 9, 2015Date of Patent: June 26, 2018Assignee: HYUNDAI MOTOR COMPANYInventors: Dong Ho Chu, Jong Il Park, Dong Hee Han
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Publication number: 20180163616Abstract: An engine system includes an engine including one or more cylinders for generating a driving torque, a plurality of intake lines for supplying external air to the one or more cylinders, and one or more electric superchargers disposed on, or in, the plurality of intake lines.Type: ApplicationFiled: June 19, 2017Publication date: June 14, 2018Inventors: Dong Hee HAN, Jong Il PARK, Seungwoo HONG, Joowon LEE, Yeongseop PARK, Dong Ho CHU, Hyungbok LEE
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Publication number: 20180135569Abstract: An engine system for removing condensed water may comprise an engine including a plurality of combustion chambers generating driving torque by combustion of fuel; an intake line, in which fresh air flows into the combustion chambers; an exhaust line, in which exhaust gas flows, having been exhausted from the combustion chambers; and an intercooler for cooling compressed air by a compressor of a turbocharger, the intercooler having a coolant circulation line in which coolant flows for cooling the engine.Type: ApplicationFiled: August 8, 2017Publication date: May 17, 2018Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Dong Hee Han, Jong ll Park, Seungwoo Hong, Hyungbok Lee, Joowon Lee, Dong Ho Chu, Hyun Jun Lim
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Publication number: 20180135572Abstract: An intake air control apparatus for a vehicle may include a valve flap provided in an air intake passage, the valve flap having a rotation shaft facing opposite sides of the air intake passage, to control a cross-sectional area of air intake flow according to a rotation angle thereof about the rotation shaft; a driving device supplying a driving force to the valve flap; and a port plate being provided in the air intake passage, with a longitudinal direction thereof being in parallel to a longitudinal direction of the air intake passage, the port plate dividing the air intake passage into an upper passage and a lower passage, wherein based on a width direction, at least a portion of the port plate has a height changing portion that changes a height of the port plate from a lower internal wall of the air intake passage.Type: ApplicationFiled: June 14, 2017Publication date: May 17, 2018Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Dong Ho CHU, Yang Geol LEE, Yong Hoon KIM, Sung Jun KIM
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Publication number: 20180100428Abstract: An engine system may include: an engine including a plurality of cylinders generating driving torque by combustion of fuel; a first exhaust manifold connected to some of cylinders of the plurality of cylinders; a second exhaust manifold connected to remaining cylinders of the plurality of cylinders; a turbocharger including a turbine rotated by exhaust gas that is exhausted from the first exhaust manifold and a compressor rotated together with the turbine and compressing air supplied to the cylinders; and an supercharger including a motor and an compressor operated by the motor in order to supply compressed air to the cylinders.Type: ApplicationFiled: December 14, 2016Publication date: April 12, 2018Applicant: HYUNDAI MOTOR COMPANYInventors: Dong Hee Han, Jong II Park, Seungwoo Hong, Hyungbok Lee, Joowon Lee, Dong Ho Chu, Hyun Jun Lim
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Publication number: 20180073426Abstract: An engine structure for a vehicle includes: a turbocharger rotating by a flow of exhaust gas and compress intake air; a first runner communicating with at least one of a plurality of combustion chambers which are formed in an engine and communicating with the turbocharger; a second runner communicating with remaining combustion chambers which are not in communication with the first runner; and a supercharger rotating by a motor, which is cooled by a coolant, and compressing intake air.Type: ApplicationFiled: December 5, 2016Publication date: March 15, 2018Inventors: Dong Ho CHU, Jong Il PARK, Hyeon Ho KIM, Dong Hee HAN
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Patent number: 9856787Abstract: A valve device of a turbocharger includes: a valve seat disposed on an entrance of a fluid passage divided into at least two branches, and an opening/closing valve coupled to a rotary shaft rotatably disposed adjacent to the valve seat. The valve seat has a contact surface which is flat and a dividing section which extends across the entrance and divides the entrance into two entrance sections. The opening/closing valve closes the entrance of the fluid passage disposed in the valve seat. The bottom surface of the opening/closing valve is in surface contact with the contact surface of the valve seat. The central portion of the opening/closing valve corresponding to the dividing section is spaced apart from the dividing section at a predetermined distance.Type: GrantFiled: December 1, 2015Date of Patent: January 2, 2018Assignees: Hyundai Motor Company, Kia Motors Corporation, Keyyang Precision Co., Ltd.Inventors: Dong Ho Chu, Kyu Sik Cho
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Publication number: 20170350325Abstract: An apparatus for controlling an engine having a variable valve actuator include: an engine including a plurality of cylinders generating a driving torque by burning fuel, an intake valve selectively opened for supplying air and the fuel to the cylinders through an intake manifold, and an exhaust valve selectively opened for exhausting exhaust gas generated from the cylinders to an exhaust manifold; a variable valve actuator disposed in at least one cylinder of the plurality of cylinders and adjusting lift and duration of the intake valve or the exhaust valve; and a controller deactivating the at least one cylinder of the plurality of cylinders through the variable valve actuator according to a driving region of the engine, and recirculating the exhaust gas exhausted from the cylinders into the intake manifold through the deactivated cylinder.Type: ApplicationFiled: December 1, 2016Publication date: December 7, 2017Inventors: Dong Hee HAN, Jong Il PARK, Kwanhee CHOI, Hyungbok LEE, Joowon LEE, Dong Ho CHU, Hyun Jun LIM