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1. 发明授权

US10361443B2 Fuel cell system, and control method for fuel cell system 有权
公开(公告)号：US10361443B2
公开(公告)日：2019-07-23
申请号：US14364480
申请日：2012-12-06
申请人： Nobukazu Mizuno , Yoshiaki Naganuma
发明人： Nobukazu Mizuno , Yoshiaki Naganuma
IPC分类号： H01M8/04 , H01M8/04089 , H01M8/04746
摘要： A fuel cell system includes: a fuel cell supplied with fuel gas for power generation; a fuel supply flow passage flowing fuel gas, supplied from a fuel supply source, to the fuel cell; a pressure regulating valve regulating a pressure of fuel gas flowing through the fuel supply flow passage; a fuel circulation flow passage returning gas, emitted from the fuel cell, to the fuel supply flow passage; a circulation pump delivering gas in the fuel circulation flow passage to the fuel supply flow passage; an emission valve emitting gas in the fuel circulation flow passage to an outside; and a control device controlling the pressure regulating valve, the circulation pump and the emission valve such that the sum of losses of crossover hydrogen, circulation pump power and purge hydrogen is minimum while a hydrogen stoichiometric ratio required for power generation of the fuel cell is ensured.

2. 发明授权

US09343759B2 Fuel cell system and starting method thereof 有权
标题翻译：燃料电池系统及其启动方法
公开(公告)号：US09343759B2
公开(公告)日：2016-05-17
申请号：US14345778
申请日：2011-10-14
申请人： Tomio Yamanaka , Yoshiaki Naganuma
发明人： Tomio Yamanaka , Yoshiaki Naganuma
IPC分类号： H01M8/04
CPC分类号： H01M8/04201 , H01M8/04089 , H01M8/04223 , H01M8/04225 , H01M8/04302 , H01M8/04753 , H01M8/244 , H01M8/2457 , Y02E60/50
摘要： The problem is that a large force is required to open a flow-dividing shut valve provided in an air supply path for supplying the air to a fuel cell stack at a start of a fuel cell system. This problem is solved by reducing a pressure difference between upstream and downstream of the flow-dividing shut valve, before the flow-dividing shut valve is opened, at a start of the fuel cell system.
摘要翻译：问题是需要大的力来打开设置在燃料电池系统的起点处的空气供应路径中的用于向燃料电池堆供应空气的分流截止阀。通过在燃料电池系统的启动时，在分流截止阀打开之前减小分流截止阀的上游和下游之间的压力差来解决该问题。

3. 发明授权

US09312552B2 Fuel cell system and starting method thereof 有权
公开(公告)号：US09312552B2
公开(公告)日：2016-04-12
申请号：US14345778
申请日：2011-10-14
申请人： Tomio Yamanaka , Yoshiaki Naganuma
发明人： Tomio Yamanaka , Yoshiaki Naganuma
IPC分类号： H01M8/04
摘要： The problem is that a large force is required to open a flow-dividing shut valve provided in an air supply path for supplying the air to a fuel cell stack at a start of a fuel cell system. This problem is solved by reducing a pressure difference between upstream and downstream of the flow-dividing shut valve, before the flow-dividing shut valve is opened, at a start of the fuel cell system.

4. 发明申请

US20140333316A1 FUEL CELL SYSTEM 审中-公开
标题翻译：燃油电池系统
公开(公告)号：US20140333316A1
公开(公告)日：2014-11-13
申请号：US14372504
申请日：2012-01-17
申请人： Masashi Toida , Yoshiaki Naganuma
发明人： Masashi Toida , Yoshiaki Naganuma
IPC分类号： G01R31/36
CPC分类号： G01R31/3658 , G01R19/16542 , G01R31/3606 , G01R31/362 , H01M8/04365 , H01M8/04552 , H01M8/04559 , H01M8/04589 , H01M8/0488 , H01M2250/20 , Y02T90/32
摘要： A fuel cell system comprises: a fuel cell formed of a plurality of cells stacked therein, each cell generating electric power through an electrochemical reaction between a fuel gas and an oxidant gas; a cell monitor capable of detecting a group voltage for each group wherein each group is composed of two or more cells; and an estimation device that estimates a minimum cell voltage. The estimation device comprises a maximum cell voltage estimation part that estimates a maximum cell voltage, and the estimation device estimates the minimum cell voltage by using an estimated value of the maximum cell voltage and a minimum group-average voltage, where an average voltage of a group having the lowest voltage value among the group voltages is defined as the minimum group-average voltage.
摘要翻译：燃料电池系统包括：燃料电池，由堆叠在其中的多个电池组成，每个电池通过燃料气体和氧化剂气体之间的电化学反应产生电力; 能够检测每个组的组电压的单元监视器，其中每个组由两个或更多个单元组成; 以及估计最小单元电压的估计装置。估计装置包括估计最大单元电压的最大单元电压估计部分，并且估计装置通过使用最大单元电压和最小组平均电压的估计值来估计最小单元电压，其中，组电压中具有最低电压值的组被定义为最小组平均电压。

5. 发明授权

US08383279B2 Fuel cell system and method for calculating circulation ratio in the same 有权
标题翻译：燃料电池系统及计算循环比例的方法
公开(公告)号：US08383279B2
公开(公告)日：2013-02-26
申请号：US12085905
申请日：2007-04-27
申请人： Yoshiaki Naganuma
发明人： Yoshiaki Naganuma
IPC分类号： H01M8/04 , H01M8/18
CPC分类号： H01M8/04007 , H01M8/04097 , H01M8/04253 , H01M8/0432 , H01M8/04328 , H01M8/04343 , H01M8/04388 , H01M8/04402 , H01M8/04417 , H01M8/04753 , H01M8/04761 , H01M8/04768 , H01M2008/1095
摘要： There are disclosed a fuel cell system capable of inhibiting freezing at a joining part of a supply gas and a circulation gas during a system operation, and a method for calculating circulation ratio in the system. In the fuel cell system of the present invention, the circulation gas discharged from a fuel cell meets the supply gas from a gas supply source to be supplied to the fuel cell, and a flow rate of the circulation gas with respect to that of the supply gas is set in consideration of condensation latent heat of water vapor in the circulation gas. The flow rate of the circulation gas with respect to that of the supply gas can be set by heat balance calculation at the joining part in consideration of the condensation latent heat.
摘要翻译：公开了一种能够抑制系统运转时的供给气体和循环气体的接合部的冷冻的燃料电池系统，以及在该系统中计算循环比的方法。在本发明的燃料电池系统中，从燃料电池排出的循环气体与供给到燃料电池的气体供给源的供给气体相遇，并且循环气体相对于电力供给源的流量考虑到循环气体中的水蒸气的冷凝潜热来设定气体。考虑到冷凝潜热，循环气体相对于供给气体的流量可以通过在接合部分的热平衡计算来设定。

6. 发明申请

US20120141898A1 FUEL CELL SYSTEM 有权
标题翻译：燃油电池系统
公开(公告)号：US20120141898A1
公开(公告)日：2012-06-07
申请号：US13390005
申请日：2009-08-21
申请人： Hiromi Tanaka , Yoshiaki Naganuma , Osamu Yumita
发明人： Hiromi Tanaka , Yoshiaki Naganuma , Osamu Yumita
IPC分类号： H01M8/04
CPC分类号： H01M8/04179 , H01M8/04097 , H01M8/04253 , H01M8/04268 , H01M8/04559 , H01M8/04753 , H01M8/04783
摘要： When starting operation of a fuel cell below the freezing point, a fuel cell system adjusts the open degree of a hydrogen pressure adjusting valve, introduces hydrogen to a hydrogen entrance of the fuel cell so as to make the total pressure of the hydrogen entrance is a first pressure, and starts a hydrogen circulation pump. If at least one of the cell voltages acquired by a cell voltmeter is below a predetermined voltage, the system determines that clogging is caused in a hydrogen flow channel in the fuel cell. When it is determined that clogging is present, the open degree of the pressure adjusting valve is adjusted and hydrogen is introduced to the hydrogen entrance so that the total pressure of the hydrogen entrance is a second pressure which is higher than the first pressure. Then, the hydrogen circulation pump is stopped and the fuel cell is warmed up to dissolve the clogging of the hydrogen flow channel. Thus, it is possible to suppress degradation of the fuel cell upon an operation start below the freezing point.
摘要翻译：当燃料电池低于冰点运行时，燃料电池系统调节氢气压力调节阀的开度，将氢气引入燃料电池的氢气入口，使得氢气入口的总压力为第一压力，启动氢循环泵。如果由电池电压计获取的电池电压中的至少一个低于预定电压，则系统确定在燃料电池中的氢气流通道中引起堵塞。当确定存在堵塞时，调节压力调节阀的开度，并将氢气引入氢入口，使得氢入口的总压力高于第一压力的第二压力。然后，氢循环泵停止，并且燃料电池被加热以溶解氢流动通道的堵塞。因此，可以在低于冰点的操作开始时抑制燃料电池的劣化。

7. 发明授权

US08158293B2 Fuel cell system 有权
标题翻译：燃料电池系统
公开(公告)号：US08158293B2
公开(公告)日：2012-04-17
申请号：US13103723
申请日：2011-05-09
申请人： Yoshiaki Naganuma , Hiromi Tanaka , Osamu Yumita , Masashi Fuji , Nobukazu Mizuno
发明人： Yoshiaki Naganuma , Hiromi Tanaka , Osamu Yumita , Masashi Fuji , Nobukazu Mizuno
IPC分类号： H01M8/04
CPC分类号： B60L11/1898 , B60L11/1868 , B60L11/1887 , B60L11/1892 , B60L11/1894 , B60L2200/32 , B60L2210/10 , B60L2240/34 , H01M8/04007 , H01M8/04223 , H01M8/04225 , H01M8/04619 , H01M8/04701 , H01M8/04746 , H01M16/00 , H01M16/006 , H01M2250/20 , Y02T10/7066 , Y02T10/7216 , Y02T90/32 , Y02T90/34
摘要： A fuel cell system includes a fuel cell, a secondary battery, an oxidizing gas supplier, a gas supply flow regulator, an oxidizing gas supply path, a cathode off-gas exhaust path, a bypass flow path, a flow regulator, an available power output acquirer, and an operation controller, wherein the gas supply flow regulator regulates the gas supply flow rate to cause the oxidizing gas supplier to supply an excess gas flow rate, which is set to be greater than a target fuel gas-requiring gas flow rate, wherein the target fuel gas-requiring gas flow rate is the fuel cell-requiring gas flow rate to be supplied to the fuel cell in order to achieve the target current value, when the available power output is less than a minimum amount of electric power required for the oxidizing gas supplier to increase the gas supply flow rate from 0 to a preset gas flow rate within a preset time period, and the operation controller controls the flow regulator to make the bypass flow rate equal to a difference gas flow rate between the excess gas flow rate and the target fuel cell-requiring gas flow rate.
摘要翻译：燃料电池系统包括燃料电池，二次电池，氧化气体供应器，气体供应流量调节器，氧化气体供应路径，阴极废气排放路径，旁路流路，流量调节器，可用功率输出采集器和操作控制器，其中气体供应流量调节器调节气体供应流量，以使氧化气体供应商提供过量的气体流量，其设定为大于目标燃料气体需求气体流量其特征在于，所述目标燃料气体需要气体流量是当所述可用功率输出小于最小电力量时，向所述燃料电池供给燃料电池需要气体流量，以达到所述目标电流值氧化气体供给器在预设时间段内将气体供给流量从0增加到预设气体流量所需的量，并且操作控制器控制流量调节器以使旁路流量等于差过量气体流量与目标燃料电池需要气体流量之间的气体流量。

8. 发明申请

US20100227238A1 FUEL CELL SYSTEM AND WATER DISCHARGE CONTROL METHOD FOR THE SYSTEM 有权
标题翻译：燃料电池系统和水排放控制方法
公开(公告)号：US20100227238A1
公开(公告)日：2010-09-09
申请号：US12279863
申请日：2007-10-16
申请人： Yoshiaki Naganuma
发明人： Yoshiaki Naganuma
IPC分类号： H01M8/04
CPC分类号： H01M8/04179 , H01M8/04253 , H01M8/0432 , H01M8/04388 , H01M8/04589 , H01M8/04753
摘要： There is disclosed a fuel cell system including a fuel cell, a water discharge channel through which a water content discharged from this fuel cell flows, and a water discharge valve which discharges, from the system, the water content in this water discharge channel, and the fuel cell system further includes a water discharge control section for controlling the water discharge valve so as to inhibit the water discharge from the water discharge valve from a time when the starting of the system is requested to a time when the temperature of the system reaches a predetermined temperature, in a case where the starting of the system is requested in an environment where an outside air temperature is less than a predetermined threshold value.
摘要翻译：公开了一种燃料电池系统，其包括燃料电池，从该燃料电池排出的水分流过的排水通道以及从该系统排出该排水通道中的水分的排水阀，以及燃料电池系统还包括排水控制部分，用于控制排水阀，以便在从系统启动到系统达到的时间到达系统的时间时禁止排水阀的排水在外部空气温度小于预定阈值的环境中请求启动系统的情况下，预定温度。

9. 发明申请

US20100159342A1 FUEL CELL SYSTEM AND ITS CONTROL METHOD 有权
标题翻译：燃料电池系统及其控制方法
公开(公告)号：US20100159342A1
公开(公告)日：2010-06-24
申请号：US12600953
申请日：2008-07-03
申请人： Hiroyuki Imanishi , Kota Manabe , Tomoya Ogawa , Yoshiaki Naganuma
发明人： Hiroyuki Imanishi , Kota Manabe , Tomoya Ogawa , Yoshiaki Naganuma
IPC分类号： H01M8/04
CPC分类号： H01M8/04089 , H01M8/04097 , H01M8/04141 , H01M8/04335 , H01M8/04365 , H01M8/04395 , H01M8/04589 , H01M8/04686 , H01M8/04776 , H01M8/0488 , H01M8/04955 , H01M8/0662 , H01M16/003 , H01M2008/1095 , H01M2250/20 , Y02T90/32
摘要： Disclosed is a fuel cell system including a fuel cell which generates a power, and control means for decreasing the amount of a reactant gas to be supplied to the fuel cell to an amount smaller than that during normal power generation to realize low-efficiency power generation of the fuel cell. The control means sets the voltage lower limit value of the fuel cell so that the amount of an anode gas (pumping hydrogen) to be formed in a cathode of the fuel cell during the low-efficiency power generation is a predetermined amount or less.
摘要翻译：公开了一种燃料电池系统，其包括产生电力的燃料电池和用于将要供给到燃料电池的反应气体的量减少到比正常发电期间少的量的控制装置，以实现低效发电的燃料电池。控制装置设定燃料电池的电压下限值，使得在低效率发电期间在燃料电池的阴极中形成的阳极气体（泵送氢）的量为预定量以下。

10. 发明申请

US20080115998A1 Gas Fuel Tank-Equipped Vehicle 有权
标题翻译：燃气油箱配备车辆
公开(公告)号：US20080115998A1
公开(公告)日：2008-05-22
申请号：US11792560
申请日：2006-01-06
申请人： Yoshiaki Naganuma , Norimasa Ishikawa
发明人： Yoshiaki Naganuma , Norimasa Ishikawa
IPC分类号： B60K15/03
CPC分类号： B60H1/00371 , B60H2001/00235 , B60K15/07 , B60K2015/0639 , B60Y2200/143 , B60Y2200/1432 , B62D25/06
摘要： Hydrogen leaking from a hydrogen cylinder has a lower specific gravity than air, thus rises in a cylinder housing space, and reaches a ventilating opening constituted by a group of slits formed in an upper surface of a roof cover. At this time, the ventilating opening is formed in a position above the hydrogen cylinder, and thus the leaking hydrogen can reach the ventilating opening in a short distance as compared with the case where the ventilating opening is formed in a position apart from the position above the hydrogen cylinder. The ventilating openings are provided in a plurality of locations, and thus the leaking hydrogen reaches the closest ventilating opening. The hydrogen gas reaches the ventilating opening, passes upward therethrough and flows outside.
摘要翻译：从氢气缸泄漏的氢气的比重比空气低，因此在气缸容纳空间中升高，并且到达形成在屋顶盖的上表面中的一组狭缝构成的通风口。此时，通风口形成在氢气缸上方的位置，因此与通气开口形成在远离上述位置的位置相比，泄漏的氢气能够在短时间内到达通风口氢气缸。通风口设置在多个位置，因此泄漏的氢气到达最靠近的通风口。氢气到达通风口，向上通过并流到外面。

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