Patents by Inventor Hyung Geun Cho
Hyung Geun Cho 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: 20240123370Abstract: An ion filter for circulating coolant in a fuel cell stack of a fuel cell vehicle includes a housing including an inlet configured so that a fluid is introduced and an outlet configured so that the fluid is discharged, a filter element accommodated in the housing to filter the fluid, a valve assembly provided on the inlet and configured to operate the flow of the fluid introduced into the housing through the inlet to be allowed or blocked, and a gate member provided in the housing and configured to adjust an operation of the valve assembly.Type: ApplicationFiled: March 2, 2023Publication date: April 18, 2024Inventors: Kyeong Jun BAEK, Sun Ae Park, Hun Woo Park, Hyung Geun Cho, Young Sang Cho, Sang Pil Byun
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Publication number: 20230174393Abstract: An ion filter installed in a cooling water circulation line of a fuel cell system of a vehicle includes a filter housing disposed on a flow path through which a fluid flows, a filtering element accommodated in the filter housing and configured to filter the fluid introduced into the filter housing, and an inlet communication element provided on an inlet portion of the filter housing and configured to selectively block a flow of fluid introduced into the filter housing from the flow path when the filter housing detached from the flow path.Type: ApplicationFiled: November 9, 2022Publication date: June 8, 2023Inventors: Hun Woo Park, Hyun Ju Ji, Sun Ae Park, Hyung Geun Cho
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Patent number: 11149696Abstract: A gas tube for an EGR cooler has such a structure that a metal plate having a flat plate shape is bent in a tube shape. The metal plate includes a core material, a sheath material clad on one surface of the core material or on both surfaces thereof, and an intermediate material clad between the core material and the sheath material so as to prevent magnesium from diffusing from the core material to the sheath material. The core material includes copper (Cu), silicon (Si), iron (Fe), magnesium (Mg), manganese (Mn), titanium (Ti), and aluminum (Al).Type: GrantFiled: November 28, 2017Date of Patent: October 19, 2021Assignee: KORENS CO., LTD.Inventor: Hyung Geun Cho
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Patent number: 10865674Abstract: The present invention relates to an exhaust gas heat exchanger capable of controlling the cooling performance. The exhaust gas heat exchanger includes: a cooler through which cooling water flows and in which a plurality of gas tubes is provided to allow exhaust gas to flow; an intake and exhaust block including an intake part, a supply line, a discharge line, a bypass line, and a first flap; a U-turn block including an inflow part, a re-cooling line, a release line, and a second flap; and an air duct.Type: GrantFiled: September 26, 2017Date of Patent: December 15, 2020Assignees: KORENS CO., LTD., BMW AGInventor: Hyung Geun Cho
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Patent number: 10851724Abstract: A valve assembly includes: a rotary gear being rotated about a vertical central axis that is a rotational axis by force from an outside, and having a non-circular insertion hole on the central axis; a cylindrical cam being able to move up and down while rotating integrally with the rotary gear with an upper end thereof inserted in the insertion hole, and having two or more inclined slide grooves on an outer side thereof; a poppet shaft disposed through the rotational axis of the cylindrical cam to be able to move up and down integrally with and rotate independently from the cylindrical cam; a valve seat coupled to a lower portion of the poppet shaft; a housing and a cover that surround the cylindrical cam; and two or more bearing unit each having a first side fixed to the housing and having second sides respectively inserted in the slide grooves.Type: GrantFiled: January 5, 2017Date of Patent: December 1, 2020Assignee: KORENS CO., LTD.Inventor: Hyung Geun Cho
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Publication number: 20200300198Abstract: A gas tube for an EGR cooler has such a structure that a metal plate having a flat plate shape is bent in a tube shape. The metal plate includes a core material, a sheath material clad on one surface of the core material or on both surfaces thereof, and an intermediate material clad between the core material and the sheath material so as to prevent magnesium from diffusing from the core material to the sheath material. The core material includes copper (Cu), silicon (Si), iron (Fe), magnesium (Mg), manganese (Mn), titanium (Ti), and aluminum (Al).Type: ApplicationFiled: November 28, 2017Publication date: September 24, 2020Inventor: Hyung Geun CHO
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Publication number: 20200191070Abstract: A valve assembly includes: a rotary gear being rotated about a vertical central axis that is a rotational axis by force from an outside, and having a non-circular insertion hole on the central axis; a cylindrical cam being able to move up and down while rotating integrally with the rotary gear with an upper end thereof inserted in the insertion hole, and having two or more inclined slide grooves on an outer side thereof; a poppet shaft disposed through the rotational axis of the cylindrical cam to be able to move up and down integrally with and rotate independently from the cylindrical cam; a valve seat coupled to a lower portion of the poppet shaft; a housing and a cover that surround the cylindrical cam; and two or more bearing unit each having a first side fixed to the housing and having second sides respectively inserted in the slide grooves.Type: ApplicationFiled: January 5, 2017Publication date: June 18, 2020Inventor: Hyung Geun CHO
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Publication number: 20200072104Abstract: The present invention relates to an exhaust gas heat exchanger capable of controlling the cooling performance. The exhaust gas heat exchanger includes: a cooler through which cooling water flows and in which a plurality of gas tubes is provided to allow exhaust gas to flow; an intake and exhaust block including an intake part, a supply line, a discharge line, a bypass line, and a first flap; a U-turn block including an inflow part, a re-cooling line, a release line, and a second flap; and an air duct.Type: ApplicationFiled: September 26, 2017Publication date: March 5, 2020Inventor: Hyung Geun CHO
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Publication number: 20200031097Abstract: The present invention relates to an aluminum alloy material for a gas tube included in an exhaust gas recirculation (EGR) system. More specifically, the present invention relates to an aluminum alloy material for a gas tube, the an aluminum alloy material including: a core material; an outer material cladded onto a single surface or opposite surfaces of the core material; and an intermediate material cladded between the core material and the outer material to prevent magnesium from diffusing into the outer material from the core material, wherein the core material includes copper (Cu), silicon (Si), iron (Fe), magnesium (Mg), manganese (Mn), titanium (Ti), and aluminum (Al). According to the present invention, the aluminum alloy material for a gas tube in an EGR cooler is excellent in strength and corrosion resistance, thereby extending the life span of gas tube even under extreme conditions.Type: ApplicationFiled: April 19, 2017Publication date: January 30, 2020Inventor: Hyung Geun CHO
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Patent number: 10458371Abstract: An EGR cooler includes a housing having coolant inlet and outlet, through which coolant flows into and out of the housing, and having gas inlet and outlet through which exhaust gas flows into and out of the housing, a plurality of first tubes provided in the housing while one end of each of the first tubes communicates with the gas inlet and the other end thereof communicates with one end of a connection passage, a plurality of second tubes provided in the housing while one end of each of the second tubes communicates with the gas outlet and the other end thereof communicates with the other end of the connection passage, and first and second cooling fins inserted into the respective first and second tubes, wherein the gas inlet has a larger cross-sectional area than the gas outlet.Type: GrantFiled: November 9, 2017Date of Patent: October 29, 2019Assignees: Hyundai Motor Company, Kia Motors Corporation, Korens Co., Ltd.Inventors: Joon Myung Lee, Jeon Jin Park, Sung Soo Kim, Kyoung Ik Jang, Hyung Geun Cho
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Publication number: 20180291844Abstract: An EGR cooler includes a housing having coolant inlet and outlet, through which coolant flows into and out of the housing, and having gas inlet and outlet through which exhaust gas flows into and out of the housing, a plurality of first tubes provided in the housing while one end of each of the first tubes communicates with the gas inlet and the other end thereof communicates with one end of a connection passage, a plurality of second tubes provided in the housing while one end of each of the second tubes communicates with the gas outlet and the other end thereof communicates with the other end of the connection passage, and first and second cooling fins inserted into the respective first and second tubes, wherein the gas inlet has a larger cross-sectional area than the gas outlet.Type: ApplicationFiled: November 9, 2017Publication date: October 11, 2018Inventors: Joon Myung LEE, Jeon Jin PARK, Sung Soo KIM, Kyoung Ik JANG, Hyung Geun CHO
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Publication number: 20180254644Abstract: Techniques for an electronic device charger are provided. In an example, an apparatus may include a first plurality of interconnects configured to connect with second interconnects of the electronic device, wherein a first interconnect of the first plurality of interconnects is configured to provide charge power to the electronic device, a power transfer circuit configured to receive a supply voltage and to provide the charge power, a first temperature sensor configured to sense a first temperature of one interconnect of the first plurality of interconnects and to provide an indication of the first temperature, and a comparator configured to receive a threshold and the indication of the first temperature and to disable the power transfer circuit if the first temperature violates the threshold.Type: ApplicationFiled: March 6, 2017Publication date: September 6, 2018Inventors: Hyung Geun Cho, David Niemira, Jorge Zabaco, Jian Li