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公开(公告)号：US11431005B2
公开(公告)日：2022-08-30
申请号：US15936516
申请日：2018-03-27
Inventor： Hideki Nakata , Kunihiro Ukai , Masakazu Aoki
IPC: H01M8/04014 , H01M8/04007 , H01M8/04537 , H01M8/04664 , H01M8/04701 , H01M8/04746 , H01M8/0612 , H01M8/04089 , H01M8/04303 , H01M8/04313 , H01M8/0432 , H01M8/0438 , H01M8/04955 , H01M8/1246 , H01M8/2425 , H01M8/12
Abstract: Disclosed is a high-temperature operating fuel cell system including: a fuel cell stack; a combustor that combusts a cathode off-gas and an anode off-gas; a heat insulator that covers at least part of the fuel cell stack and at least part of the combustor; a first preheater that covers at least part of the heat insulator and preheats an oxidant gas; an oxidant gas feeder that supplies the oxidant gas to the first preheater; a vacuum heat insulator that covers at least part of the first preheater; a sensor that detects information indicating stopping of a power generation operation; and a controller. When a determination is made that the power generation has stopped, the controller controls the oxidant gas feeder to supply the oxidant gas to the first preheater so that the temperature of the vacuum heat insulator is equal to or lower than a prescribed temperature.
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公开(公告)号：US10722841B2
公开(公告)日：2020-07-28
申请号：US16009517
申请日：2018-06-15
Inventor： Kunihiro Ukai , Osamu Sakai , Atsuo Okaichi
IPC: B01D53/32 , C01B3/50 , C25B15/02 , C25B1/10 , C25B9/10 , H01M8/0656 , H01M8/1018
Abstract: A hydrogen supply system includes: a controller; and an electrochemical hydrogen pump including: an electrolyte membrane; a pair of electrodes provided on two surfaces of the electrolyte membrane; and a current adjuster adjusting a current flowing between the electrodes, the electrochemical hydrogen pump performs a hydrogen supply operation supplying pressure-boosted hydrogen to a hydrogen demander by allowing a current to flow between the electrodes by the current adjuster; and when a cumulative hydrogen supply amount which is supplied to the hydrogen demander from start to completion of the hydrogen supply operation to the hydrogen demander from the electrochemical hydrogen pump is smaller than a cumulative hydrogen supply amount in another hydrogen supply operation, the controller controls the current adjuster so that the current flowing between the electrodes is decreased to be smaller than that in the another hydrogen supply operation.
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公开(公告)号：US10573906B2
公开(公告)日：2020-02-25
申请号：US15490824
申请日：2017-04-18
Inventor： Hideki Nakata , Kunihiro Ukai , Masakazu Aoki
IPC: H01M8/04014 , H01M8/1231 , H01M8/0612 , H01M8/124 , F28F1/08 , F28D7/10 , H01M8/2475 , H01M8/04089 , F28F1/06 , F28D7/12 , H01M8/04007 , H01M8/0662 , F28D21/00 , H01M8/04082
Abstract: A fuel cell device includes: a reformer that generates a reformed gas; a fuel cell; a combustor that combusts off-gas of the reformed gas and air for power generation, and generates a combustion exhaust gas; a first air heat exchanger that has a combustion exhaust gas path and a first air supply path, and that performs heat exchange between the combustion exhaust gas and the air for power generation; a fuel cell storage which stores the fuel cell; a second air heat exchanger that has a second air supply path that supplies the air for power generation to the fuel cell, and that performs heat exchange between the off-gas of the air for power generation and the air for power generation; and a housing that stores members. The first air supply path and the second air supply path are disposed to cover whole members stored in the housing.
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公开(公告)号：US10544514B2
公开(公告)日：2020-01-28
申请号：US15713605
申请日：2017-09-23
Inventor： Kunihiro Ukai
Abstract: A gas diffusion device includes a first gas diffusion layer that diffuses gas and is formed of metal and at least one first metal plate that is provided on at least one main surface of the first gas diffusion layer and includes a manifold hole through which gas flows and a gas flow path which communicates with the manifold hole, and the gas flow path passes through the first metal plate.
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公开(公告)号：US10340537B2
公开(公告)日：2019-07-02
申请号：US14938008
申请日：2015-11-11
Inventor： Yasushi Kaneko , Kunihiro Ukai
IPC: H01M8/04 , H01M8/06 , H01M8/04223 , H01M8/0612 , H01M8/0662 , H01M8/04014 , H01M8/04746 , H01M8/04302 , H01M8/04089 , H01M8/04082 , H01M8/124
Abstract: A fuel cell system includes a reformer, a raw-material supplier, a desulfurizer, a flow controller, a vapor supplier, a fuel cell, a combustor, and a controller. After the raw-material supplier supplies a raw material at the startup of the fuel cell system, the controller causes the combustor to combust the raw material exhausted as off-gas from the fuel cell, subsequently causes the flow controller to allow gas exhausted from the reformer to flow through a recycle gas passage, and thereafter causes the vapor supplier to supply vapor, or the controller causes the flow controller to allow the gas exhausted from the reformer to flow through the recycle gas passage, subsequently causes the combustor to combust the raw material exhausted as the off-gas from the fuel cell, and thereafter causes the vapor supplier to supply the vapor.
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Patent Agency Ranking
公开(公告)号：US09515329B2
公开(公告)日：2016-12-06
申请号：US14407462
申请日：2014-02-20
Inventor： Shigenori Onuma , Kunihiro Ukai , Takehiro Maruyama
CPC classification number: H01M8/04014 , H01M8/04074 , H01M8/0618 , H01M8/0675 , Y02E60/50
Abstract: A fuel cell system including a fuel cell; a cathode air heat exchanger configured to perform heat exchange between a cathode exhaust gas and the air to be supplied to the cathode to transfer a part of heat energy of the cathode exhaust gas to the air; a desulfurization unit configured to remove a sulfur component from a raw material supplied to the desulfurization unit; and a reformer configured to generate a reformed gas which is the fuel from steam and the raw material from which the sulfur component has been removed by the desulfurization unit; and the cathode exhaust gas which has lost a part of the heat energy by the heat exchange in at least the cathode air heat exchanger, is supplied to the desulfurization unit, to heat the desulfurization unit by the heat energy of the cathode exhaust gas.
Abstract translation: 一种燃料电池系统，包括燃料电池; 阴极空气热交换器，被配置为执行阴极排气和要供应到阴极的空气之间的热交换，以将阴极废气的一部分热能传递到空气; 脱硫单元，被配置为从供给到脱硫单元的原料中除去硫成分; 以及重整器，其构造成从蒸汽和由脱硫单元除去了硫成分的原料产生作为燃料的重整气体; 至少在阴极空气热交换器中通过热交换而损失一部分热能的阴极废气被供给到脱硫单元，以通过阴极废气的热能来加热脱硫单元。
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公开(公告)号：US20150155579A1
公开(公告)日：2015-06-04
申请号：US14407932
申请日：2014-03-19
Inventor： Yuichi Yakumaru , Kunihiro Ukai , Susumu Kobayashi
CPC classification number: H01M8/0618 , B01J19/0006 , B01J2219/00164 , C01B3/02 , C01B3/384 , C01B2203/0233 , C01B2203/0811 , C01B2203/1058 , C01B2203/1064 , C01B2203/107 , C01B2203/1695
Abstract: A hydrogen generator includes: a reformer configured to generate a hydrogen-containing gas by a reforming reaction of a material gas; a combustor configured to heat the reformer by diffusion combustion of the material gas and combustion air; a supplementary air flow rate adjuster configured to adjust the flow rate of supplementary air added to the material gas; and a controller configured to control the supplementary air flow rate adjuster such that the flow rate of a mixture gas of the material gas and the supplementary air becomes a predetermined value.
Abstract translation: 氢发生器包括：重构器，其经配置以通过原料气体的重整反应产生含氢气体; 燃烧器构造成通过原料气体和燃烧空气的扩散燃烧来加热重整器; 辅助空气流量调节器，被配置为调节添加到原料气体中的补充空气的流量; 以及控制器，被配置为控制辅助空气流量调节器，使得原料气体和辅助空气的混合气体的流量变为预定值。
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公开(公告)号：US11602472B2
公开(公告)日：2023-03-14
申请号：US16789843
申请日：2020-02-13
Inventor： Kunihiro Ukai , Kazuhito Hato
Abstract: A hydrogen-containing gas supply system includes one or more hydrogen-containing gas suppliers, one or more acquirers, and a controller. The one or more hydrogen-containing gas suppliers supply a hydrogen-containing gas to one or more areas in a building. The one or more acquirers acquire information indicating that a person is present in the one or more areas. When it is determined that a person is present in a certain area of the one or more areas in accordance with the information acquired by the acquirers, the controller causes at least one of the one or more hydrogen-containing gas suppliers to supply the hydrogen-containing gas to the certain area.
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19.发明授权公开(公告)号：US11598013B2
公开(公告)日：2023-03-07
申请号：US16928047
申请日：2020-07-14
Inventor： Hidenobu Wakita , Yuuichi Yakumaru , Kunihiro Ukai
IPC: C25B15/027 , C25B1/02 , C25B15/02 , C25B15/08 , C25B9/23
Abstract: An electrochemical hydrogen compressor includes: a cell including a proton conductive electrolyte membrane having a pair of principal surfaces, a cathode disposed on a first one of the principal surfaces of the electrolyte membrane, and an anode disposed on a second one of the principal surfaces of the electrolyte membrane; a voltage applicator that applies a voltage between the anode and the cathode; a dew point adjuster that adjusts a dew point of a hydrogen-containing gas to be supplied to the anode; and a controller that, when the temperature of the cell increases, controls the dew point adjuster to increase the dew point of the hydrogen-containing gas.
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20.发明授权公开(公告)号：US10811712B2
公开(公告)日：2020-10-20
申请号：US16198271
申请日：2018-11-21
Inventor： Osamu Sakai , Kunihiro Ukai , Hidenobu Wakita
IPC: H01M8/06 , H01M8/0662 , C25B15/08 , C25B9/10 , C25B15/02 , B01D53/22 , B01D53/32 , C01B3/50 , H01M8/04119 , H01M8/04082
Abstract: A hydrogen supply system includes an electrochemical hydrogen pump which includes: an electrolyte membrane; an anode provided on a first surface of the electrolyte membrane; a cathode provided on a second surface of the electrolyte membrane opposite to the first surface; and a current adjuster adjusting a current amount flowing between the anode and the cathode, and which performs a hydrogen supply operation by allowing a current to flow between the anode and the cathode using the current adjuster so as to boost the pressure of hydrogen which is supplied to an anode side at a cathode side and to supply the pressure-boosted hydrogen to a hydrogen demander; and a dew point adjuster adjusting a dew point of a mixed gas in which a hydrogen-containing gas which is discharged from the anode side and a hydrogen-containing gas which is supplied from an outside are mixed together.
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