公开(公告)号：US08722268B2

公开(公告)日：2014-05-13

申请号：US12787085

申请日：2010-05-25

申请人： Chihiro Wake ,  Koichiro Miyata ,  Jumpei Ogawa

发明人： Chihiro Wake ,  Koichiro Miyata ,  Jumpei Ogawa

IPC分类号： H01M8/06

CPC分类号： H01M8/04179 ,  H01M8/04097 ,  H01M8/04104 ,  H01M8/04164 ,  H01M8/0432 ,  H01M8/04388 ,  H01M8/04552 ,  H01M8/04753

摘要： A fuel cell system comprises a fuel cell stack, a cell voltage monitor, a hydrogen tank, a hydrogen supply channel, an ejector, a hydrogen off-gas channel, a purge valve, a compressor, an air supply channel, a pressure control unit for controlling air pressure, a pilot pressure input channel branching off from the air supply channel and inputting the air pressure to the ejector as pilot pressure, and a control unit for controlling the purge valve and the pressure control unit. The ejector includes a pressure control mechanism which increases the ejector's secondary-side pressure by increasing the area of the nozzle's ejecting hole when the pilot pressure input from the pilot pressure input channel rises. When electricity generation status of the fuel cell stack is judged to be poor, the control unit opens the purge valve after raising the air pressure and the pilot pressure by using the pressure control unit.

摘要翻译： 燃料电池系统包括燃料电池堆，电池电压监视器，氢罐，氢供应通道，喷射器，氢气废气通道，净化阀，压缩机，供气通道，压力控制单元 用于控制空气压力，从所述供气通道分支的先导压力输入通道，并将空气压力输入到所述喷射器作为先导压力;以及控制单元，用于控制所述清洗阀和所述压力控制单元。 喷射器包括压力控制机构，当从先导压力输入通道输入的先导压力上升时，通过增加喷嘴喷射孔的面积来增加喷射器的次级侧压力。 当燃料电池堆的发电状态被判定为差时，控制单元通过使用压力控制单元在升高空气压力和先导压力之后打开净化阀。

公开(公告)号：US08450016B2

公开(公告)日：2013-05-28

申请号：US11491715

申请日：2006-07-24

申请人： Jumpei Ogawa ,  Chihiro Wake ,  Koichiro Miyata

发明人： Jumpei Ogawa ,  Chihiro Wake ,  Koichiro Miyata

IPC分类号： H01M8/04

CPC分类号： H01M8/04753 ,  H01M8/04231 ,  H01M8/04253 ,  H01M8/04343 ,  H01M8/04358 ,  H01M8/04388 ,  H01M8/04402 ,  H01M8/04432 ,  H01M8/04492 ,  H01M8/045 ,  H01M8/04507 ,  H01M8/04589 ,  H01M8/04761 ,  H01M8/04768

摘要： A fuel cell system is provided which estimates a water content in a fuel cell based on a predetermined map using an integrated value of electric current generated by the fuel cell (ST4) before power generation is stopped (ST5). When a temperature of the fuel cell has fallen lower than a predetermined value (ST7) after the power generation is stopped (ST5), the fuel cell system determines a dry degree in the fuel cell (ST8) and an anode scavenging period (ST9) based on predetermined maps. Scavenging is performed in an anode in the fuel cell for the anode scavenging period (ST10).

摘要翻译： 提供一种燃料电池系统，其在发电停止之前，使用由燃料电池（ST4）产生的电流的积分值，基于预定映射来估计燃料电池中的含水量（ST5）。 在发电停止后，当燃料电池的温度低于预定值（ST7）时（ST5），燃料电池系统确定燃料电池中的干燥程度（ST8）和阳极清扫期间（ST9） 基于预定的地图。 在阳极清扫期间的燃料电池的阳极中进行清扫（ST10）。

公开(公告)号：US08007945B2

公开(公告)日：2011-08-30

申请号：US11498373

申请日：2006-08-03

申请人： Koichiro Miyata ,  Chihiro Wake ,  Jumpei Ogawa

发明人： Koichiro Miyata ,  Chihiro Wake ,  Jumpei Ogawa

IPC分类号： H01M8/04

CPC分类号： H01M8/04104 ,  H01M8/04179 ,  H01M8/04388 ,  H01M8/04395 ,  H01M8/04402 ,  H01M8/04753 ,  H01M8/04761 ,  H01M2008/1095

摘要： A fuel-cell system 1 includes: a fuel cell 13 configured to generate electricity through reaction between hydrogen gas and air; a compressor 12 configured to supply air as a scavenging gas to a reactant gas path 13a of the fuel cell 13; a control part 18 configured to control an amount of air supplied from the compressor 12 to the fuel cell 13 to perform scavenging of the fuel cell 13; and pressure sensors P1 and P2 configured to monitor a pressure drop in the reactant gas path 13a of the fuel cell 13. The control part 18 controls an amount of supplied air so as to keep the pressure drop in the reactant gas path 13a substantially constant when the fuel cell 13 is scavenged. With this configuration, residual water can be suitably purged from the fuel cell while energy consumption is suppressed.

摘要翻译： 燃料电池系统1包括：燃料电池13，被配置为通过氢气和空气之间的反应发电; 构造成将空气作为清扫气体供给到燃料电池13的反应气体通道13a的压缩机12; 控制部18，被配置为控制从压缩机12向燃料电池13供给的空气量，以进行燃料电池13的清扫; 以及被配置为监测燃料电池13的反应气体通道13a中的压力降的压力传感器P1和P2。控制部分18控制供给的空气量，以便在反应气体通路13a中保持压降基本上恒定，当 燃料电池13被清扫。 利用这种结构，可以在能量消耗被抑制的同时从燃料电池适当地清除残留的水。

公开(公告)号：US07972736B2

公开(公告)日：2011-07-05

申请号：US11712985

申请日：2007-03-02

申请人： Koichiro Miyata ,  Chihiro Wake

发明人： Koichiro Miyata ,  Chihiro Wake

IPC分类号： H01M8/04

CPC分类号： H01M8/04022 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/04238 ,  H01M8/04268 ,  H01M8/04302 ,  H01M8/04313 ,  H01M8/04358 ,  H01M8/04559 ,  H01M8/04589 ,  H01M8/04753 ,  H01M8/04768 ,  H01M8/0488 ,  H01M8/0491 ,  H01M8/241 ,  H01M2008/1095

摘要： In a fuel cell system including a fuel cell supplied with reaction gases for generating an electric power, and a combustion heater supplied with the reaction gases for heating the fuel cell during warming-up, an electric discharging circuit is provided to discharge an electric current from the fuel cell supplied with the reaction gases to decrease a voltage difference applied to the membrane sandwiched between the anode and cathode during the warming-up. The combustion heater is connected in series or in parallel with the fuel cell system.

摘要翻译： 在燃料电池系统中，包括供应有用于产生电力的反应气体的燃料电池，以及在加热期间供应有用于加热燃料电池的反应气体的燃烧加热器，设置放电电路以从 燃料电池被供给反应气体，以减少在预热期间施加到夹在阳极和阴极之间的膜的电压差。 燃烧加热器与燃料电池系统串联或并联连接。

公开(公告)号：US07846596B2

公开(公告)日：2010-12-07

申请号：US11267521

申请日：2005-11-03

申请人： Chihiro Wake ,  Tomoki Kobayashi ,  Yasunori Kotani ,  Minoru Uoshima ,  Kenichiro Ueda ,  Koichiro Miyata

发明人： Chihiro Wake ,  Tomoki Kobayashi ,  Yasunori Kotani ,  Minoru Uoshima ,  Kenichiro Ueda ,  Koichiro Miyata

IPC分类号： H01M8/04

CPC分类号： H01M8/04231 ,  H01M8/04097

摘要： A fuel cell system enables time required for purging to be reduced without a major increase in discharge gas concentration at a time of purging. It comprises a fuel cell; a fuel gas supply path for supplying the fuel gas to an anode; an oxidizing gas supply path for supplying an oxidizing gas to a cathode; a fuel gas circulating path for returning an unreacted fuel gas to an anode inlet side; a dilution box for diluting the fuel gas by the oxidizing gas and for discharging it to outside; and a fuel gas discharge path connecting the fuel gas circulating path and a dilution box discharge gas inlet. A drain valve, a purge valve and an air discharge valve are provided, opening areas of which are different from one another. The drain valve with a smallest opening area is initially opened.

摘要翻译： 燃料电池系统使清洗时所需的时间减少，而不会在清洗时排放气体浓度大幅增加。 它包括燃料电池; 用于将燃料气体供给到阳极的燃料气体供给路径; 用于向阴极供给氧化气体的氧化气体供给路径; 用于将未反应的燃料气体返回到阳极入口侧的燃料气体循环路径; 用于通过氧化气体稀释燃料气体并将其排出到外部的稀释盒; 以及连接燃料气体循环路径和稀释箱排出气体入口的燃料气体排出路径。 设有排水阀，净化阀和排气阀，其开口区域彼此不同。 最初打开面积最小的排水阀。

公开(公告)号：US07829232B2

公开(公告)日：2010-11-09

申请号：US11700885

申请日：2007-02-01

申请人： Chihiro Wake ,  Koichiro Miyata

发明人： Chihiro Wake ,  Koichiro Miyata

IPC分类号： H01M8/04

CPC分类号： H01M8/04589 ,  H01M8/04313 ,  H01M8/04343 ,  H01M8/04529 ,  H01M8/04753 ,  H01M8/04761 ,  H01M8/0485 ,  H01M8/0491

摘要： A fuel cell system allows suppression of the deterioration of a fuel cell even if a part of a membrane configuring the fuel cell is unavailable for power production. The fuel cell is configured with a membrane, and an anode and a cathode provided so as to sandwich the membrane, and produces electric power from reaction of reactive gases via the membrane when the reactive gases are supplied to the anode and the cathode. The fuel cell system is configured with the fuel cell, an MEA power production effective area calculating means for calculating an area of the membrane surface available for power production, an upper limit power producing current calculating means for controlling the total power production of the fuel cell based on the power production effective area calculated by the MEA power production effective area calculating means, and a current controller.

摘要翻译： 即使构成燃料电池的膜的一部分不能用于发电，燃料电池系统也能够抑制燃料电池的劣化。 燃料电池配置有膜，阳极和阴极设置成夹住膜，并且当反应气体被供应到阳极和阴极时，通过反应气体经由膜的反应产生电力。 燃料电池系统由燃料电池构成，MEA发电生产有效面积计算装置，用于计算可用于发电的膜面积的面积;上限功率产生电流计算装置，用于控制燃料电池的总发电量 基于由MEA功率生产有效面积计算装置计算的功率生产有效面积和电流控制器。

公开(公告)号：US07767352B2

公开(公告)日：2010-08-03

申请号：US11498212

申请日：2006-08-01

申请人： Chihiro Wake ,  Koichiro Miyata ,  Jumpei Ogawa

发明人： Chihiro Wake ,  Koichiro Miyata ,  Jumpei Ogawa

IPC分类号： H01M8/00 ,  H01M8/04

CPC分类号： H01M16/003 ,  H01M8/0267 ,  H01M8/04156 ,  H01M8/04223 ,  H01M8/04302 ,  H01M8/0432 ,  H01M8/04343 ,  H01M8/0435 ,  H01M8/04358 ,  H01M8/04373 ,  H01M8/04559 ,  H01M8/04589 ,  H01M8/04626 ,  H01M8/04708 ,  H01M8/04716 ,  H01M8/04731 ,  H01M8/04753 ,  H01M8/04761 ,  H01M8/04947 ,  H01M8/04955 ,  H01M8/241 ,  H01M8/2457 ,  Y02T90/34

摘要： When it is detected that the ignition switch is turned off a short period of time after the ignition switch turned on at the temperature below the freezing point, the charge threshold of a capacitor is changed to a larger charge threshold C for increasing the amount of electrical energy charged in the capacitor based on the charge threshold C. The capacitor is used for performing a scavenging process for a sufficient period of time. At the time of starting operation of the fuel cell system at the temperature below the freezing point the next time, using the electrical energy of the capacitor, a fuel cell is warmed rapidly by a heater or the like to start operation of the fuel cell system.

摘要翻译： 当在点火开关在低于冰点的温度下接通之后，当检测到点火开关断开一段短时间后，电容器的充电阈值变为较大的充电阈值C以增加电量 基于充电阈值C在电容器中充电的能量。电容器用于在足够的时间段内执行扫气过程。 在燃料电池系统在低于冰点的温度开始运行时，使用电容器的电能，燃料电池通过加热器等快速加热，以开始燃料电池系统的运行 。

公开(公告)号：US20090035614A1

公开(公告)日：2009-02-05

申请号：US12184360

申请日：2008-08-01

申请人： Chihiro Wake ,  Koichiro Miyata

发明人： Chihiro Wake ,  Koichiro Miyata

IPC分类号： H01M8/04 ,  H01M8/02

CPC分类号： H01M8/04179 ,  H01M8/04231 ,  H01M8/04253 ,  H01M8/04462 ,  H01M8/04753

摘要： A fuel cell system including: a fuel cell including a fuel gas channel and an oxidant gas channel, which is configured to generate electricity using a fuel gas and an oxidant gas; a diluting unit configured to dilute gas discharged from the fuel gas channel by mixing the discharged gas with a dilution gas which is supplied from an oxidant gas supply unit and passed through and discharged from the fuel cell, and to exhaust the diluted gas to outside; a purge valve configured to purge gas in the fuel gas channel to the diluting unit; a scavenging unit configured to scavenge the fuel gas channel and the oxidant gas channel; and a dilution assist unit configured to supply a dilution assist gas to the diluting unit through an assist passage connected to the diluting unit to assist dilution in the diluting unit, during scavenging by the scavenging unit.

摘要翻译： 一种燃料电池系统，包括：燃料电池，其包括燃料气体通道和氧化剂气体通道，其被配置为使用燃料气体和氧化剂气体发电; 稀释单元，被配置为通过将排出的气体与从氧化剂气体供应单元供给并从燃料电池供给并排出的稀释气体混合，稀释从燃料气体通道排出的气体，并将稀释气体排出到外部; 净化阀，其构造成将所述燃料气体通道中的气体吹扫到所述稀释单元; 清除单元，构造成清除燃料气体通道和氧化剂气体通道; 以及稀释辅助单元，其构造成通过与所述稀释单元连接的辅助通道向所述稀释单元供给稀释辅助气体，以在所述清除单元清扫期间辅助稀释单元中的稀释。

公开(公告)号：US20060141309A1

公开(公告)日：2006-06-29

申请号：US11289953

申请日：2005-11-29

申请人： Koichiro Miyata ,  Kenichiro Ueda ,  Chihiro Wake ,  Jumpei Ogawa ,  Minoru Uoshima

发明人： Koichiro Miyata ,  Kenichiro Ueda ,  Chihiro Wake ,  Jumpei Ogawa ,  Minoru Uoshima

IPC分类号： H01M8/04

CPC分类号： H01M8/04007 ,  H01M8/04253 ,  H01M8/04268

摘要： A reaction gas is supplied to a cathode side of a fuel cell at a flow rate higher than that for a usual operation of the fuel cell to thaw the fuel cell system at startup in a freezing state of the system when the system has experienced a temperature lower than an operation temperature of an anode off-gas. A thawing state of the system is detected on the basis of at least two of temperatures of the anode off-gas, a cathode off gas, and a radiator liquid of the fuel cell to control supplying the reaction gas to the cathode side at a usual operation flow rate. An actual increase rate of the temperature of the anode off-gas is obtained and an increase rate of the temperature of the anode off-gas is calculated from the self-heating value to be compared to determine the thawing state.

摘要翻译： 反应气体以比燃料电池的通常操作更高的流速向燃料电池的阴极侧供应，以在系统的冷冻状态下启动时解冻燃料电池系统，当系统经历了温度 低于阳极废气的操作温度。 基于阳极废气，阴极废气和燃料电池的散热器液体的温度中的至少两个来检测系统的解冻状态，以控制将反应气体以常规方式供应到阴极侧 操作流量。 获得阳极废气温度的实际增加率，并根据要比较的自热值计算阳极废气温度的升高速率，以确定解冻状态。

公开(公告)号：US08361665B2

公开(公告)日：2013-01-29

申请号：US12009971

申请日：2008-01-22

申请人： Chihiro Wake ,  Koichiro Miyata ,  Jumpei Ogawa

发明人： Chihiro Wake ,  Koichiro Miyata ,  Jumpei Ogawa

IPC分类号： H01M8/04

CPC分类号： H01M8/04029 ,  H01M8/04268 ,  H01M8/04358 ,  H01M8/04365 ,  H01M8/04417 ,  H01M8/04559 ,  H01M8/04589 ,  H01M8/04731 ,  H01M8/04768 ,  H01M8/0494 ,  H01M2008/1095

摘要： A fuel cell system including: a fuel cell which generates electrical power through the reaction of a reaction gas; a reaction gas supply device which supplies the reaction gas to the fuel cell; a cooling device which cools the fuel cell by circulating a coolant through the fuel cell; a fuel cell operating temperature output device which outputs a maximum temperature inside the fuel cell as an operating temperature of the fuel cell; and a fuel cell temperature adjustment device which adjusts a temperature inside the fuel cell so that the operating temperature inside the fuel cell is less than a preset upper temperature limit.

摘要翻译： 一种燃料电池系统，包括：燃料电池，其通过反应气体的反应产生电力; 将反应气体供给到燃料电池的反应气体供给装置; 冷却装置，其通过使冷却剂循环通过燃料电池来冷却燃料电池; 输出燃料电池内的最高温度作为燃料电池的工作温度的燃料电池工作温度输出装置; 以及燃料电池温度调节装置，其调节燃料电池内部的温度，使得燃料电池内的工作温度低于预设的上限温度。