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    Fuel cell system and gas leak determination method for fuel cell system
    31.
    发明授权
    Fuel cell system and gas leak determination method for fuel cell system 有权
    燃料电池系统和燃气电池系统的气体泄漏测定方法

    公开(公告)号：US08216729B2

    公开(公告)日：2012-07-10

    申请号：US11660810

    申请日：2005-09-15

    申请人： Naohiro Yoshida

    发明人： Naohiro Yoshida

    IPC分类号： H01M8/04

    CPC分类号： H01M8/04097 ,  H01M8/04223 ,  H01M8/04228 ,  H01M8/04231 ,  H01M8/04388 ,  H01M8/04402 ,  H01M8/0444 ,  H01M8/04664 ,  H01M8/04679 ,  H01M8/04753 ,  H01M8/04761 ,  H01M8/0491 ,  H01M8/0494 ,  H01M8/04947 ,  H01M8/0662 ,  H01M16/003

    摘要： A fuel cell system (10) of the present invention comprises determination means (50) for consuming a fuel gas present at a gas leak detection portion of a fuel gas supply system (31, 32) through the power generation of a fuel cell (20), and performing a gas leak determination on the basis of a pressure decrease margin of the fuel gas present at the gas leak detection portion, and comprises discharge means (H51) for reducing the pressure at the gas leak detection portion by purging the fuel gas present at the gas leak detection portion to the outside of the fuel gas supply system (31, 32). By not only consuming the fuel gas present at the gas leak detection portion through power generation, but also purging the fuel gas to the outside of the fuel gas supply system, the pressure at the gas leak detection portion can be brought close to a target pressure within a short time period, and the gas leak determination can be performed in a short period of time and with a high level of precision.

    摘要翻译： 本发明的燃料电池系统（10）包括确定装置（50），用于通过燃料电池（20）的发电来消耗存在于燃料气体供应系统（31,32）的气体泄漏检测部分的燃料气体 ），并且基于存在于气体泄漏检测部的燃料气体的压力降低余量来进行气体泄漏判定，并且包括用于通过清除燃料气体来减少气体泄漏检测部分处的压力的排出装置（H51） 存在于燃气供给系统（31,32）的外部的气体泄漏检测部。 通过不仅通过发电而消耗在气体泄漏检测部存在的燃料气体，而且还将燃料气体吹送到燃料气体供给系统的外部，可以使气体泄漏检测部的压力接近目标压力 并且能够在短时间内以高精度进行气体泄漏判定。

    Fuel Cell System and Its Operation Stop Method
    33.
    发明申请
    Fuel Cell System and Its Operation Stop Method 有权
    燃料电池系统及其运行停止方法

    公开(公告)号：US20090286110A1

    公开(公告)日：2009-11-19

    申请号：US12085387

    申请日：2006-11-29

    申请人： Naohiro Yoshida

    发明人： Naohiro Yoshida

    IPC分类号： H01M8/04

    CPC分类号： H01M8/04029

    摘要： The present invention relates to a fuel cell system including a fuel cell which has a catalyst layer therein and which receives supply of a reactive gas to generate a power, and a refrigerant system which supplies a refrigerant to the fuel cell to control a temperature of the fuel cell, and it also relates to a method for stopping an operation of the system. When the system is operated in a low-temperature environment, the system cannot be restarted owing to freezing in the fuel cell. Therefore, during stop of the system, control has heretofore been performed so that a flow rate of a coolant to the fuel cell is reduced to lower a cooling performance and that the operation of the fuel cell is continued to raise the temperature of the fuel cell or the like. However, the control is performed regardless of a situation during the next system start, so that there has been a problem that the control might become useless. According to the present invention, in the above system, in a case where it is presumed that the temperature of the fuel cell during the next system start is a predetermined temperature or less, the supply of the refrigerant is stopped during the system stop, and the supply of the refrigerant is resumed after elapse of a predetermined time, whereby the above problem is solved.

    摘要翻译： 燃料电池系统技术领域本发明涉及一种燃料电池系统，其包括燃料电池，其中具有催化剂层，并且接收供应反应性气体以产生电力;以及制冷剂系统，其向所述燃料电池供应制冷剂以控制所述燃料电池的温度 燃料电池，并且还涉及一种用于停止该系统的操作的方法。 当系统在低温环境下运行时，由于燃料电池中的冻结，系统无法重启。 因此，在系统停止期间，以前进行了控制，使得降低到燃料电池的冷却剂的流量被降低以降低冷却性能，并且燃料电池的运行继续升高燃料电池的温度 或类似物。 然而，无论在下一个系统启动期间的情况如何，执行控制，从而存在控制可能变得无用的问题。 根据本发明，在上述系统中，在推定下次系统起动时的燃料电池的温度为规定温度以下的情况下，在系统停止期间制冷剂的供给停止， 在经过预定时间之后恢复制冷剂的供应，从而解决了上述问题。

    Fuel cell system, mobile unit equipped with the system, and control method for the fuel cell system
    36.
    发明授权
    Fuel cell system, mobile unit equipped with the system, and control method for the fuel cell system 有权
    燃料电池系统，配备系统的移动单元以及燃料电池系统的控制方法

    公开(公告)号：US07482074B2

    公开(公告)日：2009-01-27

    申请号：US10535094

    申请日：2003-11-21

    申请人： Naohiro Yoshida ,  Kenji Kurita ,  Tomonori Yachi ,  Hideki Kashiwagi

    发明人： Naohiro Yoshida ,  Kenji Kurita ,  Tomonori Yachi ,  Hideki Kashiwagi

    IPC分类号： H01M8/00 ,  H01M8/12

    CPC分类号： H01M8/04388 ,  B60L2250/26 ,  H01M8/04089 ,  H01M8/04223 ,  H01M8/04303 ,  H01M8/04402 ,  H01M8/04559 ,  H01M8/04619 ,  H01M8/04753 ,  H01M8/04992 ,  H01M8/241 ,  H01M8/2457

    摘要： A fuel cell system FC replenishes a fuel cell stack with air or hydrogen by temporarily driving a compressor or a low-pressure valve even during an intermittent operation mode. If air is supplied for replenishment, the amount of air remaining in an air supply system is kept substantially constant, so that the voltage fall during a stop of the fuel cell system can be curbed. If hydrogen is supplied for replenishment, the amount of hydrogen moving to the air supply system is offset, so that a delay in supplying hydrogen can be curbed. Furthermore, the fuel cell system FC inputs signals from a sensor, such as, a brake sensor, a shift selector, or other suitable means and anticipates acceleration of a vehicle equipped with the system FC. On the basis of the anticipation of acceleration, the system FC replenishes the fuel cell stack with air or hydrogen in advance.

    摘要翻译： 燃料电池系统FC即使在间歇运行模式下也临时驱动压缩机或低压阀，由空气或氢气补充燃料电池堆。 如果空气被供应用于补充，则空气供应系统中残留的空气量保持基本上恒定，从而可以抑制在燃料电池系统停止期间的电压下降。 如果供应氢气用于补充，则向空气供应系统移动的氢气量被抵消，从而可以抑制供氢的延迟。 此外，燃料电池系统FC从诸如制动传感器，换档选择器或其它合适装置的传感器输入信号，并且预期配备有系统FC的车辆的加速度。 在预计加速的基础上，系统FC预先用空气或氢气补充燃料电池堆。

    Fuel Cell System And Method For Controlling Same
    37.
    发明申请
    Fuel Cell System And Method For Controlling Same 失效
    燃料电池系统及其控制方法

    公开(公告)号：US20080038608A1

    公开(公告)日：2008-02-14

    申请号：US10588722

    申请日：2005-03-16

    申请人： Naohiro Yoshida

    发明人： Naohiro Yoshida

    IPC分类号： H01M8/04

    CPC分类号： H01M8/04097 ,  H01M8/04104 ,  H01M8/04388 ,  H01M8/04395 ,  H01M8/04432 ,  H01M8/04753 ,  H01M8/04783 ,  H01M2008/1095 ,  H01M2250/20 ,  Y02T90/32

    摘要： The present invention provides a fuel cell system capable of accurately controlling the pressure of fuel gas supplied to the fuel cell, the fuel cell system comprising: a fuel gas supply line (SL) which supplies the fuel gas from a fuel gas supply source (11) to the fuel cell (10); pressure-regulating means (RG) provided on the fuel gas supply line (SL) and for regulating the pressure of the fuel gas supplied from the fuel gas supply source (11); and a circulation route (R) which returns the fuel gas discharged from the fuel cell (10) to the fuel gas supply line (SL), wherein the circulation route (R) is connected to the fuel gas supply line (SL) such that the fuel gas is returned thereto in the upstream of the pressure-regulating means (RG).

    摘要翻译： 本发明提供一种能够精确地控制供给燃料电池的燃料气体的压力的燃料电池系统，该燃料电池系统包括：燃料气体供给管线（SL），其从燃料气体供给源（11 ）到燃料电池（10）; 设置在燃料气体供给管线（SL）上并用于调节从燃料气体供给源（11）供给的燃料气体的压力的压力调节装置（RG）。 以及将从燃料电池（10）排出的燃料气体返回到燃料气体供给管线（SL）的循环路径（R），其中循环路径（R）连接到燃料气体供给管线（SL），使得 燃料气体在压力调节装置（RG）的上游返回。

    Hybrid system
    38.
    发明申请
    Hybrid system 有权
    混合系统

    公开(公告)号：US20070088483A1

    公开(公告)日：2007-04-19

    申请号：US10584134

    申请日：2004-12-21

    申请人： Naohiro Yoshida

    发明人： Naohiro Yoshida

    IPC分类号： G06F19/00 ,  F02D29/06

    CPC分类号： B60L11/1885 ,  B60L11/1894 ,  Y02T90/34 ,  Y10S903/902 ,  Y10S903/908

    摘要： An hybrid system (10) of the invention includes a fuel cell unit (20) that generates electricity upon being supplied with reaction gases, a secondary battery (40) that stores electric power generated by the fuel cell unit (20), and an electric power control device (30) that controls distribution of electric power supplied to electric power loads (M1, M2) from the fuel cell unit (20) and the secondary battery (40). The secondary battery (40) has a capacity characteristic of being able to supply the requested amounts of electric power of the electric power loads (M1, M2) at least during an early stage following restart of operation of the fuel cell unit (20) from a state of pause of operation.

    摘要翻译： 本发明的混合动力系统（10）包括：燃料电池单元（20），其在供给反应气体时发电;蓄电池（40），其存储由所述燃料电池单元（20）产生的电力;以及电 电力控制装置（30），其控制从燃料电池单元（20）和二次电池（40）供给到电力负载（M 1，M 2）的电力的分配。 二次电池（40）具有能够至少在重新启动燃料电池单元（20）之后的早期阶段提供电力负载（M 1，M 2）的所需量的电力的容量特性 ）从暂停操作的状态。

    Gas processing device
    39.
    发明申请
    Gas processing device 失效
    气体处理装置

    公开(公告)号：US20070053237A1

    公开(公告)日：2007-03-08

    申请号：US10572365

    申请日：2004-10-25

    申请人： Naohiro Yoshida ,  Toshiyuki Kondo

    发明人： Naohiro Yoshida ,  Toshiyuki Kondo

    IPC分类号： B01F15/00 ,  H01M8/04

    CPC分类号： B01F5/0695 ,  B01F3/02 ,  B01F5/0068 ,  B01F5/0451 ,  B01F5/0453 ,  B01F5/0463 ,  B01F5/0646 ,  B01F5/0647 ,  B01F5/0697 ,  B01F2215/0098 ,  H01M8/04089 ,  H01M8/04231

    摘要： An object of the present invention is to provide a gas processing device capable of mixing together a plurality of gases sufficiently so that the gases are diluted. A gas processing device for mixing a first gas (H2) and a second gas (air) comprises a flow passage (110) through which the second gas (air) passes, an inflow port (104) for introducing the first gas (H2) in a non-parallel direction to the flow direction of the second gas (air) within the flow passage (110), and a housing (101) for sealing a part of the flow passage (110). The flow passage (110) comprises hole structures (111), through which the second gas (air) and first gas (H2) pass in and out, in at least a part of the region sealed by the housing (101). According to this constitution, the hole structures generate turbulence, and hence the degree of mixing between the first gas (H2) and second gas (air) can be improved, enabling a uniform reduction in the gas concentration.

    摘要翻译： 本发明的目的是提供一种气体处理装置，其能够充分混合多个气体，使得气体被稀释。 用于混合第一气体（H2）和第二气体（空气）的气体处理装置包括第二气体（空气）通过的流路（110），用于引入第一气体（H2）的流入口（104） 在与流路（110）内的第二气体（空气）的流动方向不平行的方向上，以及用于密封流路（110）的一部分的壳体（101）。 流动通道（110）包括孔结构（111），在由壳体（101）密封的区域的至少一部分中，第二气体（空气）和第一气体（H2）穿过该孔结构111。 根据该结构，孔结构产生湍流，因此能够提高第一气体（H2）和第二气体（空气）之间的混合度，能够均匀地降低气体浓度。

    Operation control of fuel cell system
    40.
    发明申请
    Operation control of fuel cell system 失效

    公开(公告)号：US20060110640A1

    公开(公告)日：2006-05-25

    申请号：US11270741

    申请日：2005-11-10

    申请人： Naohiro Yoshida ,  Tetsuya Bono ,  Kenji Kurita ,  Hiroaki Mori

    发明人： Naohiro Yoshida ,  Tetsuya Bono ,  Kenji Kurita ,  Hiroaki Mori

    IPC分类号： H01M8/04

    CPC分类号： H01M8/04097 ,  H01M8/04223 ,  H01M8/0662 ,  H01M8/241 ,  H01M8/2457 ,  H01M8/2483

    摘要： In a fuel cell system of the invention, a pressure regulator is provided in the pathway of a hydrogen supply conduit that connects a hydrogen tank to a fuel cell stack. An anode off gas discharged from the fuel cell stack is recirculated through a recirculation pipe into the hydrogen supply conduit. A hydrogen pump is provided in the pathway of the recirculation pipe to increase the pressure of the anode off gas. A control unit of the fuel cell system includes a hydrogen pump control module, an abnormality diagnosis module, and an atmospheric pressure-based correction module. The hydrogen pump control module regulates the rotation speed of the hydrogen pump corresponding to a power demand to be output from the fuel cell system. The abnormality diagnosis module detects an abnormal state, based on a result of determination of whether the pressure of the hydrogen supply measured by a pressure sensor is within a certain range defined by two preset threshold values. The atmospheric pressure-based correction module corrects the rotation speed of the hydrogen pump and the threshold values used for abnormality diagnosis according to the atmospheric pressure measured by an atmospheric pressure sensor. Even in the state of unstable output of the pressure regulator with a variation of the atmospheric pressure, such correction compensates for the varying flow rate of the hydrogen supply to the fuel cell stack and thus effectively prevents misjudgment of abnormality diagnosis. Namely the technique of the invention reduces the potential effect of the varying pressure of the hydrogen supply to the fuel cell system with a variation of the atmospheric pressure.