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公开(公告)号：US20220190362A1
公开(公告)日：2022-06-16
申请号：US17208451
申请日：2021-03-22
发明人： Byeong Seung Lee , Kyoung Ku Ha
IPC分类号： H01M8/04089 , H01M8/2465 , H01M8/04746
摘要： A stack ventilation system includes a supply line that supplies a supply gas to an air electrode of a fuel cell stack, a discharge line that discharges an exhaust gas released from the air electrode, and a stack supply line that branches off from a branching point of the supply line and that supplies the supply gas in the supply line to a stack enclosure in which the fuel cell stack is accommodated.
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公开(公告)号：US10862145B2
公开(公告)日：2020-12-08
申请号：US16193462
申请日：2018-11-16
发明人： Sae Han Oh , Jeong Hee Park , Kyoung Ku Ha , Hyunyoo Kim , Chang Ha Lee
IPC分类号： H01M8/04119 , H01M8/04828
摘要： A humidifying device, which exchanges moisture between air supplied from an air compressor and air exhausted from the fuel cell, for a fuel cell, includes: a housing main body; at least one humidifying membrane module disposed in the housing main body; and a valve assembly which is disposed in the housing main body and adjusts a supply amount of exhaust air flowed into the at least one humidifying membrane module based on a predetermined supply amount of supply air flowed into the at least one humidifying membrane module.
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公开(公告)号：US10263548B2
公开(公告)日：2019-04-16
申请号：US15835074
申请日：2017-12-07
发明人： Dong Hun Lee , Keun Bong Ham , Chang Ha Lee , Kyoung Ku Ha , Min Su Kang , Chang Seok You , Sung Do Kim
摘要： Disclosed are a method and a system for feedback-controlling including controlling a current supply unit in a controller so that an output applied to a driving unit from the current supply unit is repeatedly turned on/off by predetermined period and duty. The method also includes feedback-controlling of an output value of the controller applied to the current supply unit from the controller so that the output of the current supply unit follows a target value. The feedback-controlling includes an integration control process and stops the integration control process in the period that the current supply unit turns off the output thereof.
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公开(公告)号：US11764373B2
公开(公告)日：2023-09-19
申请号：US17208451
申请日：2021-03-22
发明人： Byeong Seung Lee , Kyoung Ku Ha
IPC分类号： H01M8/04 , H01M8/04089 , H01M8/04746 , H01M8/2465
CPC分类号： H01M8/04104 , H01M8/04761 , H01M8/2465
摘要： A stack ventilation system includes a supply line that supplies a supply gas to an air electrode of a fuel cell stack, a discharge line that discharges an exhaust gas released from the air electrode, and a stack supply line that branches off from a branching point of the supply line and that supplies the supply gas in the supply line to a stack enclosure in which the fuel cell stack is accommodated.
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公开(公告)号：US09909618B2
公开(公告)日：2018-03-06
申请号：US15335001
申请日：2016-10-26
申请人： Hyundai Motor Company , Kia Motors Corporation , Kookmin University Industry Academy Cooperation Foundation
发明人： Kyoung Ku Ha , Chang Ha Lee , Jeong Hee Park , Tae Ho Kim , Moon Sung Park , Jong Sung Lee , Young Min Kim
CPC分类号： F16C17/042 , F16C39/02 , F16C2360/00
摘要： A thrust bearing includes: a thrust plate in a disc shape having an outer diameter and an inner diameter formed by perforating a central portion of the thrust plate; a plurality of bump foils disposed radially on a top surface of the thrust plate; a plurality of top foils in a panel shape covering each of the bump foils, where bottom surfaces of the top foils are in contact with upper ends of the bump foils; and metal blocks radially disposed on the top surface of the thrust plate and formed to be spaced apart from the bump foils. The thrust bearing can be included in an air compressor of a vehicle.
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公开(公告)号：US11605827B2
公开(公告)日：2023-03-14
申请号：US16376772
申请日：2019-04-05
发明人： Kyoung Ku Ha , Byeong Seung Lee , Jeong Hee Park
IPC分类号： H01M8/04746 , F01N1/08 , F01N1/16 , F16L55/04
摘要： An apparatus for regulating pressure of exhaust gas of a fuel cell system includes porous foam mounted in an exhaust tube and having a plurality of pores therein and a regulator that compresses or expands the porous foam to regulate a differential pressure of the exhaust gas flowing through the exhaust tube.
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公开(公告)号：US10473153B2
公开(公告)日：2019-11-12
申请号：US16035651
申请日：2018-07-15
发明人： Kyoung Ku Ha , Chang Ha Lee
摘要： An air foil bearing assembly is provided. The air foil bearing assembly includes a bearing housing that has a hollow into which a rotary shaft is fitted and a slot of which both ends are open toward front and rear sides formed on an inner circumference surface of the hollow. A bump foil is provided to have a combining portion inserted to the slot and disposed in the inner circumference surface of the hollow. A top foil having a combining portion is inserted to the slot and is disposed in an inner side of the bump foil. A stopper is disposed on one of the combining portions of the bump foil or the top foil to prevent the combining portion of the bump foil or the top foil from being displaced from the slot toward the front and rear sides.
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公开(公告)号：US20190178286A1
公开(公告)日：2019-06-13
申请号：US16035651
申请日：2018-07-15
发明人： Kyoung Ku Ha , Chang Ha Lee
摘要： An air foil bearing assembly is provided. The air foil bearing assembly includes a bearing housing that has a hollow into which a rotary shaft is fitted and a slot of which both ends are open toward front and rear sides formed on an inner circumference surface of the hollow. A bump foil is provided to have a combining portion inserted to the slot and disposed in the inner circumference surface of the hollow. A top foil having a combining portion is inserted to the slot and is disposed in an inner side of the bump foil. A stopper is disposed on one of the combining portions of the bump foil or the top foil to prevent the combining portion of the bump foil or the top foil from being displaced from the slot toward the front and rear sides.
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公开(公告)号：US20170321744A1
公开(公告)日：2017-11-09
申请号：US15335001
申请日：2016-10-26
申请人： Hyundai Motor Company , Kia Motors Corporation , Kookmin University Industry Academy Cooperation Foundation
发明人： Kyoung Ku Ha , Chang Ha Lee , Jeong Hee Park , Tae Ho Kim , Moon Sung Park , Jong Sung Lee , Young Min Kim
CPC分类号： F16C17/042 , F16C39/02 , F16C2360/00
摘要： A thrust bearing includes: a thrust plate in a disc shape having an outer diameter and an inner diameter formed by perforating a central portion of the thrust plate; a plurality of bump foils disposed radially on a top surface of the thrust plate; a plurality of top foils in a panel shape covering each of the bump foils, where bottom surfaces of the top foils are in contact with upper ends of the bump foils; and metal blocks radially disposed on the top surface of the thrust plate and formed to be spaced apart from the bump foils. The thrust bearing can be included in an air compressor of a vehicle.
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公开(公告)号：US10756362B2
公开(公告)日：2020-08-25
申请号：US16376386
申请日：2019-04-05
发明人： Byeong Seung Lee , Kyoung Ku Ha , Hyun Yoo Kim , Jeong Hee Park
IPC分类号： H01M8/04 , H01M8/04089 , H01M8/04082 , F16K1/20 , F16K15/18 , H01M8/04746
摘要： An air shut-off valve apparatus for a fuel cell system is provided. The apparatus includes a valve body having an inlet-side air passage through which supply air flows and an outlet-side air passage through which exhaust air flows. A valve flap is installed in the valve body to open or close the inlet-side air passage and the outlet-side air passage. An inlet-side check valve is opened when pressure of the supply air is greater than or equal to a predetermined pressure, to guide the supply air into the fuel cell stack through the inlet-side air passage even while the valve flap is closed. An outlet-side check valve is opened when pressure of the exhaust air is greater than or equal to a predetermined pressure, to guide the exhaust air released from the fuel cell stack to flow through the outlet-side air passage even while the valve flap is closed.
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