公开(公告)号：US08486577B2

公开(公告)日：2013-07-16

申请号：US11994659

申请日：2006-07-26

申请人： Keigo Suematsu ,  Tatsuaki Yokoyama ,  Koji Katano ,  Nobuhiro Tomosada

发明人： Keigo Suematsu ,  Tatsuaki Yokoyama ,  Koji Katano ,  Nobuhiro Tomosada

IPC分类号： H01M8/04

CPC分类号： H01M8/04089 ,  H01M8/04388 ,  H01M8/04679 ,  H01M8/04753 ,  H01M16/006 ,  H01M2250/20 ,  Y02T90/32

摘要： In a fuel cell system of the invention, a hydrogen leakage detection process closes a shutoff valve, which shuts off a supply of hydrogen from a hydrogen supply unit into a hydrogen supply flow path, and opens a pressure regulator, which reduces a pressure of hydrogen in the hydrogen supply flow path, so as to keep the hydrogen supply flow path in a state with no pressure regulation and make the fuel cell system in a leakage detectable state. In this leakage detectable state, the hydrogen leakage detection process measures at least one of a pressure and a flow rate as a state quantity of hydrogen in the hydrogen supply flow path that feeds the supply of hydrogen to fuel cells. The hydrogen leakage detection process analyzes a detected behavior of the state quantity in the leakage detectable process and specifies the occurrence of a hydrogen leakage in the downstream of the hydrogen supply unit. This arrangement enables highly accurate detection of a hydrogen leakage in the fuel cell system with the pressure regulator provided in the hydrogen supply flow path.

摘要翻译： 在本发明的燃料电池系统中，氢泄漏检测过程关闭截止阀，该截止阀将氢气从氢气供应单元供应到氢气供应流路中，并打开压力调节器，其降低氢气压力 在氢供给流路中，为了使氢供给流路保持在没有压力调节的状态，并使燃料电池系统处于泄漏检测状态。 在该泄漏可检测状态下，氢泄漏检测处理将氢气供应流路中的氢气的状态量作为氢供给流向燃料电池供给的压力和流量中的至少一个进行测量。 氢泄漏检测过程分析在泄漏可检测过程中检测到的状态量的行为，并指定在氢气供应单元的下游发生氢泄漏。 这种布置使得能够利用设置在氢气供应流动路径中的压力调节器来高精度地检测燃料电池系统中的氢气泄漏。

公开(公告)号：US20090035612A1

公开(公告)日：2009-02-05

申请号：US11994659

申请日：2006-07-26

申请人： Keigo Suematsu ,  Tatsuaki Yokoyama ,  Koji Katano ,  Nobuhiro Tomosada

发明人： Keigo Suematsu ,  Tatsuaki Yokoyama ,  Koji Katano ,  Nobuhiro Tomosada

IPC分类号： H01M8/04

CPC分类号： H01M8/04089 ,  H01M8/04388 ,  H01M8/04679 ,  H01M8/04753 ,  H01M16/006 ,  H01M2250/20 ,  Y02T90/32

摘要： In a fuel cell system of the invention, a hydrogen leakage detection process closes a shutoff valve, which shuts off a supply of hydrogen from a hydrogen supply unit into a hydrogen supply flow path, and opens a pressure regulator, which reduces a pressure of hydrogen in the hydrogen supply flow path, so as to keep the hydrogen supply flow path in a state with no pressure regulation and make the fuel cell system in a leakage detectable state. In this leakage detectable state, the hydrogen leakage detection process measures at least one of a pressure and a flow rate as a state quantity of hydrogen in the hydrogen supply flow path that feeds the supply of hydrogen to fuel cells. The hydrogen leakage detection process analyzes a detected behavior of the state quantity in the leakage detectable process and specifies the occurrence of a hydrogen leakage in the downstream of the hydrogen supply unit. This arrangement enables highly accurate detection of a hydrogen leakage in the fuel cell system with the pressure regulator provided in the hydrogen supply flow path.

摘要翻译： 在本发明的燃料电池系统中，氢泄漏检测过程关闭截止阀，该截止阀将氢气从氢气供应单元供应到氢气供应流路中，并打开压力调节器，其降低氢气压力 在氢供给流路中，为了使氢供给流路保持在没有压力调节的状态，并使燃料电池系统处于泄漏检测状态。 在该泄漏可检测状态下，氢泄漏检测处理将氢气供应流路中的氢气的状态量作为氢供给流向燃料电池供给的压力和流量中的至少一个进行测量。 氢泄漏检测过程分析在泄漏可检测过程中检测到的状态量的行为，并指定在氢气供应单元的下游发生氢泄漏。 这种布置使得能够利用设置在氢气供应流动路径中的压力调节器来高精度地检测燃料电池系统中的氢气泄漏。

公开(公告)号：US08563191B2

公开(公告)日：2013-10-22

申请号：US11989579

申请日：2006-07-26

申请人： Koji Katano ,  Keigo Suematsu ,  Nobuhiro Tomosada

发明人： Koji Katano ,  Keigo Suematsu ,  Nobuhiro Tomosada

IPC分类号： H01M8/04 ,  H01M8/24

CPC分类号： H01M8/04089 ,  H01M8/04388 ,  H01M8/04679 ,  H01M8/04686 ,  H01M8/04753

摘要： A fuel cell system according to one aspect of the invention is operated in an ordinary mode and in a gas leakage detection mode. The fuel cell system includes fuel cells, a fuel gas supplier configured to supply a fuel gas to the fuel cells, a shutoff valve provided in a flow path for leading a flow of the fuel gas supply from the fuel gas supplier to the fuel cells and configured to shut off the fuel gas supply, and a variable pressure regulator provided in the flow path between the shutoff valve and the fuel cells to regulate a pressure of the fuel gas in a downstream in a flow direction of the fuel gas supply to a variable pressure value. In the ordinary mode, the fuel cell system sets the pressure value of the variable pressure regulator to an ordinary power generation pressure value for ordinary power generation. In the gas leakage detection mode, on the other hand, the fuel cell system closes the shutoff valve, sets the pressure value of the variable pressure regulator to a higher value than the ordinary power generation pressure value, and performs leakage detection of the fuel gas from the shutoff valve. Such setting of the pressure value in the variable pressure regulator desirably enables high-speed reduction of the fuel gas pressure in the flow path between the shutoff valve and the variable pressure regulator.

摘要翻译： 根据本发明的一个方面的燃料电池系统以普通模式和气体泄漏检测模式操作。 燃料电池系统包括燃料电池，燃料气体供给器，被配置为向燃料电池供应燃料气体;截流阀，设置在流路中，用于引导燃料气体供给到燃料电池的燃料气体供应; 配置为关闭燃料气体供应;以及可变压力调节器，设置在截止阀和燃料电池之间的流动路径中，以将燃料气体供应的流动方向上的下游的燃料气体的压力调节到变量 压力值。 在普通模式中，燃料电池系统将可变压力调节器的压力值设定为用于普通发电的普通发电压力值。 另一方面，在气体泄漏检测模式中，燃料电池系统关闭截止阀，将可变压力调节器的压力值设定为比普通发电压力值更大的值，并对燃料气体进行泄漏检测 从截流阀。 这种可变压力调节器中的压力值的设定，能够高速地降低截止阀和可变压力调节器之间的流路中的燃料气体压力。

公开(公告)号：US20100151343A1

公开(公告)日：2010-06-17

申请号：US11989579

申请日：2006-07-26

申请人： Koji Katano ,  Koigo Suomatsu ,  Nobuhiro Tomosada

发明人： Koji Katano ,  Koigo Suomatsu ,  Nobuhiro Tomosada

IPC分类号： H01M8/04

CPC分类号： H01M8/04089 ,  H01M8/04388 ,  H01M8/04679 ,  H01M8/04686 ,  H01M8/04753

摘要： A fuel cell system according to one aspect of the invention is operated in an ordinary mode and in a gas leakage detection mode. The fuel cell system includes fuel cells, a fuel gas supplier configured to supply a fuel gas to the fuel cells, a shutoff valve provided in a flow path for leading a flow of the fuel gas supply from the fuel gas supplier to the fuel cells and configured to shut off the fuel gas supply, and a variable pressure regulator provided in the flow path between the shutoff valve and the fuel cells to regulate a pressure of the fuel gas in a downstream in a flow direction of the fuel gas supply to a variable pressure value. In the ordinary mode, the fuel cell system sets the pressure value of the variable pressure regulator to an ordinary power generation pressure value for ordinary power generation. In the gas leakage detection mode, on the other hand, the fuel cell system closes the shutoff valve, sets the pressure value of the variable pressure regulator to a higher value than the ordinary power generation pressure value, and performs leakage detection of the fuel gas from the shutoff valve. Such setting of the pressure value in the variable pressure regulator desirably enables high-speed reduction of the fuel gas pressure in the flow path between the shutoff valve and the variable pressure regulator.

摘要翻译： 根据本发明的一个方面的燃料电池系统以普通模式和气体泄漏检测模式操作。 燃料电池系统包括燃料电池，燃料气体供给器，被配置为向燃料电池供应燃料气体;截流阀，设置在流路中，用于引导燃料气体供给到燃料电池的燃料气体供应; 配置为关闭燃料气体供应;以及可变压力调节器，设置在截止阀和燃料电池之间的流动路径中，以将燃料气体供应的流动方向上的下游的燃料气体的压力调节到变量 压力值。 在普通模式中，燃料电池系统将可变压力调节器的压力值设定为用于普通发电的普通发电压力值。 另一方面，在气体泄漏检测模式中，燃料电池系统关闭截止阀，将可变压力调节器的压力值设定为比普通发电压力值更大的值，并对燃料气体进行泄漏检测 从截流阀。 这种可变压力调节器中的压力值的设定，能够高速地降低截止阀和可变压力调节器之间的流路中的燃料气体压力。

公开(公告)号：US08986901B2

公开(公告)日：2015-03-24

申请号：US13577594

申请日：2010-02-26

申请人： Koji Katano

发明人： Koji Katano

IPC分类号： H01M8/04

CPC分类号： H01M8/04 ,  H01M8/04097 ,  H01M8/04201 ,  H01M8/04231 ,  H01M8/04388 ,  H01M8/04395 ,  H01M8/0441 ,  H01M8/04753 ,  H01M8/04776 ,  Y02E60/50 ,  Y02E60/521

摘要： A fuel cell system includes an air supply flow path configured to supply the air to a fuel cell, a reed valve provided in the air supply flow path, an air exhaust flow path configured to allow the air discharged from the fuel cell to flow therethrough, a pressure regulating valve provided in the air exhaust flow path and configured to adjust back pressure of the air supplied to the fuel cell, a bypass flow path configured to connect an upstream section of the air supply flow path upstream of the reed valve with the air exhaust flow path, and a bypass valve provided in the bypass flow path and configured to open and close the bypass flow path. The fuel cell system reduces the opening of the pressure regulating valve with supplying the air to the fuel cell in the closed position of the bypass valve, so as to increase the pressure of the air upstream of the pressure regulating valve, and subsequently opens the bypass valve.

摘要翻译： 燃料电池系统包括：空气供给流路，被构造成将空气供给到燃料电池;设置在供气流路中的簧片阀;排气流路，被配置为允许从燃料电池排出的空气流过; 设置在所述排气流路中并被配置为调节供给到所述燃料电池的空气的背压的调压阀，构成为将所述簧片阀上游的供气流路的上游部与空气连接的旁通流路 排气流路和旁通阀，其设置在旁通流路中并构造成打开和关闭旁路流路。 燃料电池系统通过在旁通阀的关闭位置向燃料电池供应空气来减小压力调节阀的打开，从而增加压力调节阀上游的空气压力，随后打开旁路 阀。

公开(公告)号：US08815463B2

公开(公告)日：2014-08-26

申请号：US12374520

申请日：2007-07-06

申请人： Koji Katano ,  Norio Yamagishi ,  Akihisa Hotta

发明人： Koji Katano ,  Norio Yamagishi ,  Akihisa Hotta

IPC分类号： H01M8/02 ,  H01M8/04 ,  H01M8/24

CPC分类号： H01M8/04007 ,  H01M8/04104 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04302 ,  H01M8/04328 ,  H01M8/04335 ,  H01M8/04343 ,  H01M8/0435 ,  H01M8/04365 ,  H01M8/04753 ,  H01M8/04783 ,  H01M8/04955 ,  H01M8/2435 ,  Y02E60/50

摘要： Deterioration of an electrolyte and a sealing member is suppressed taking account of the durable temperature characteristics thereof, while enhancing the starting performance of a fuel cell. For this realization, in a system comprising a gas piping system for supplying a reactant gas to a fuel cell, and a gas supply controller for altering the supply state of the reactant gas in response to a power generation request, a gas supply quantity is altered in accordance with the temperature of the fuel cell. Preferably, the gas supply quantity is altered in accordance with the durable temperature characteristics of a passage member forming a gas passage of the reactant gas. Furthermore, the differential pressure of the gas supply state between the anode side and the cathode side of the fuel cell is preferably taken into account and the differential pressure between both poles is suppressed by altering the gas supply quantity on the cathode side as the case may be.

摘要翻译： 在提高燃料电池的起动性能的同时，考虑到其耐用的温度特性来抑制电解质和密封构件的劣化。 为了实现这一目的，在包括用于向燃料电池供应反应气体的气体管道系统和用于响应发电请求改变反应气体的供给状态的气体供给控制器的系统中，气体供给量被改变 根据燃料电池的温度。 优选地，气体供给量根据形成反应气体的气体通道的通道构件的耐用温度特性而改变。 此外，优选考虑燃料电池的阳极侧和阴极侧之间的气体供给状态的压差，并且通过改变阴极侧的气体供给量来抑制两极之间的压差，视情况而定 是。

公开(公告)号：US08524407B2

公开(公告)日：2013-09-03

申请号：US13521944

申请日：2010-01-15

申请人： Koji Katano

发明人： Koji Katano

IPC分类号： H01M8/04

CPC分类号： H01M8/04225 ,  H01M8/04223 ,  H01M8/04228 ,  H01M8/04388 ,  H01M8/04753 ,  H01M2250/20 ,  Y02T90/32

摘要： A gas supply device for use in a fuel cell system, comprises: a first injector configured to have a first maximum valve-openable pressure; a second injector arranged in parallel with the first injector and configured to have a lower flow rate than the first injector and a greater second maximum valve-openable pressure than the first maximum valve-openable pressure; a first pressure sensor located upstream of the first and second injectors; and a controller configured to control open/close operation of the first and second injectors, wherein at a start of the fuel cell system, (i) when pressure in the upstream of the first and second injectors is greater than the first maximum valve-openable pressure but is less than or equal to the second maximum valve-openable pressure, the controller opens the second injector, and (ii) when the pressure in the upstream of the first and second injectors is less than or equal to the first maximum valve-openable pressure, the controller opens the first injector or the second injector.

摘要翻译： 一种用于燃料电池系统的气体供应装置，包括：配置成具有第一最大阀开启压力的第一注射器; 第二喷射器，其与所述第一喷射器并联布置，并且被配置为具有比所述第一喷射器更低的流速和比所述第一最大阀打开压力更大的第二最大阀打开压力; 第一压力传感器位于第一和第二喷射器的上游; 以及控制器，被配置为控制第一和第二喷射器的打开/关闭操作，其中在燃料电池系统的启动时，（i）当第一和第二喷射器的上游中的压力大于第一最大阀门可打开 压力小于或等于第二最大阀门可打开压力，则控制器打开第二喷射器，和（ii）当第一和第二喷射器的上游压力小于或等于第一最大阀 - 可打开的压力，控制器打开第一个注射器或第二个注射器。

公开(公告)号：US20130071767A1

公开(公告)日：2013-03-21

申请号：US13701693

申请日：2010-06-03

申请人： Koji Katano

发明人： Koji Katano

IPC分类号： H01M8/04

CPC分类号： H01M8/04089 ,  H01M8/04097 ,  H01M8/04179 ,  H01M8/0432 ,  H01M8/04365 ,  H01M8/04388 ,  H01M8/04402 ,  H01M8/0441 ,  H01M8/04559 ,  H01M8/04574 ,  H01M8/04589 ,  H01M8/04753 ,  H01M8/04761 ,  H01M2008/1095 ,  Y02E60/50

摘要： A fuel cell system equipped with a fuel cell, a pressure control unit, and an exhaust. The pressure control unit is provided on the fuel gas flow path in which the fuel gas to be supplied to the fuel cell flows, and it is able to control the pressure of the fuel gas to be supplied to the fuel cell. The exhaust valve is provided on the fuel exhaust gas flow path in which the fuel exhaust gas exhausted from the fuel cell flows, and when the valve is opened, at least a portion of the fuel exhaust gas can be exhausted to outside the fuel exhaust gas flow path. The pressure control unit is controlled, so that before opening the exhaust valve, the pressure of the fuel gas to be supplied to the fuel cell is decreased beyond what it was up to that point. Then, when the pressure of the fuel gas to be supplied to the fuel cell is the decreased first pressure, the exhaust valve is opened.

摘要翻译： 配备有燃料电池，压力控制单元和排气的燃料电池系统。 压力控制单元设置在供给燃料电池的燃料气体流入的燃料气体流路上，能够控制向燃料电池供给的燃料气体的压力。 排气阀设置在从燃料电池排出的燃料废气流动的燃料废气流路上，当阀打开时，燃料排出气体的至少一部分能够排出到燃料排出气体外 流路。 压力控制单元被控制，使得在打开排气阀之前，要供应到燃料电池的燃料气体的压力降低到超过了这一点。 然后，当向燃料电池供给的燃料气体的压力为第一压力降低时，排气阀打开。

公开(公告)号：US20130059221A1

公开(公告)日：2013-03-07

申请号：US13698046

申请日：2010-05-19

申请人： Koji Katano

发明人： Koji Katano

IPC分类号： H01M8/04

CPC分类号： H01M8/04029 ,  B60L1/003 ,  B60L50/72 ,  B60L58/33 ,  B60L58/34 ,  B60L2240/34 ,  B60L2240/36 ,  H01M2250/20 ,  H01M2250/405 ,  Y02B90/16 ,  Y02T90/32 ,  Y02T90/34

摘要： A fuel cell system includes: a fuel cell configured to have a cell stack obtained by stacking a plurality of cells; a heat exchanger located in a middle position in a stacking direction of the cell stack and configured to have a flow channel that allows passage of a fluid for heat exchange; and a heating system configured to use the fluid that passes through the flow channel for heating.

摘要翻译： 燃料电池系统包括：燃料电池，被配置为具有通过堆叠多个电池获得的电池堆; 位于所述电池组层叠方向的中间位置的热交换器，其构造为具有允许流体通过热交换的流路; 以及加热系统，其配置为使用通过所述流动通道的流体进行加热。

公开(公告)号：US20130040218A1

公开(公告)日：2013-02-14

申请号：US13521944

申请日：2010-01-15

申请人： Koji Katano

发明人： Koji Katano

IPC分类号： H01M8/04

CPC分类号： H01M8/04225 ,  H01M8/04223 ,  H01M8/04228 ,  H01M8/04388 ,  H01M8/04753 ,  H01M2250/20 ,  Y02T90/32

摘要： A gas supply device for use in a fuel cell system, comprises: a first injector configured to have a first maximum valve-openable pressure; a second injector arranged in parallel with the first injector and configured to have a lower flow rate than the first injector and a greater second maximum valve-openable pressure than the first maximum valve-openable pressure; a first pressure sensor located upstream of the first and second injectors; and a controller configured to control open/close operation of the first and second injectors, wherein at a start of the fuel cell system, (i) when pressure in the upstream of the first and second injectors is greater than the first maximum valve-openable pressure but is less than or equal to the second maximum valve-openable pressure, the controller opens the second injector, and (ii) when the pressure in the upstream of the first and second injectors is less than or equal to the first maximum valve-openable pressure, the controller opens the first injector or the second injector.

摘要翻译： 一种用于燃料电池系统的气体供应装置，包括：配置成具有第一最大阀开启压力的第一注射器; 第二喷射器，其与所述第一喷射器并联布置，并且被配置为具有比所述第一喷射器更低的流速和比所述第一最大阀打开压力更大的第二最大阀打开压力; 第一压力传感器位于第一和第二喷射器的上游; 以及控制器，被配置为控制第一和第二喷射器的打开/关闭操作，其中在燃料电池系统的启动时，（i）当第一和第二喷射器的上游中的压力大于第一最大阀门可打开 压力小于或等于第二最大阀门可打开压力，则控制器打开第二喷射器，和（ii）当第一和第二喷射器的上游压力小于或等于第一最大阀 - 可打开的压力，控制器打开第一个注射器或第二个注射器。