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1. 发明申请

US20040166387A1 Fuel cell system utilizing control of operating current to adjust moisture content within fuel cell 有权
标题翻译：燃料电池系统利用控制工作电流来调节燃料电池内的含水量
公开(公告)号：US20040166387A1
公开(公告)日：2004-08-26
申请号：US10776621
申请日：2004-02-12
申请人： DENSO CORPORATION
发明人： Tomonori Imamura , Hideshi Izuhara
IPC分类号： H01M008/04
CPC分类号： H01M8/0491 , H01M8/04291 , H01M8/04522 , H01M8/04604 , H01M8/04619 , H01M8/04753 , H01M8/0494 , H01M8/04947 , H01M8/249 , H01M10/42 , H01M16/006 , H02J7/34 , H02J2001/004
摘要： In a fuel cell system utilizing fuel cells which generate electric power by a reaction between oxygen and hydrogen, the moisture content within a fuel cell is adjusted to be brought within an appropriate range by adjusting the operating current of the fuel cell. The total amount of electric power generated by the system is maintained at a required value by supplying/obtaining electric power to/from a secondary battery as required, or by utilizing a plurality of separately controlled fuel cells (or fuel cell stacks) and increasing or decreasing the electric power generated by another fuel cell or stack that is currently operating with an appropriate moisture content.
摘要翻译：在利用通过氧和氢之间的反应产生电力的燃料电池的燃料电池系统中，通过调节燃料电池的工作电流，将燃料电池内的水分含量调节到适当的范围内。通过根据需要向二次电池供电/取得电力，或者利用多个分立控制的燃料电池（或燃料电池堆），增加或增加电力，将系统产生的电力总量维持在所需值，减少当前以适当的含水量运行的另一个燃料电池或堆叠产生的电力。

2. 发明申请

US20030141188A1 Moisture sensor and fuel cell system using same 有权
标题翻译：水分传感器和燃料电池系统使用相同
公开(公告)号：US20030141188A1
公开(公告)日：2003-07-31
申请号：US10352907
申请日：2003-01-29
申请人： DENSO CORPORATION
发明人： Tomonori Imamura , Toshiyuki Kawai
IPC分类号： G01N027/26 , H01M008/00
CPC分类号： H01M8/04828 , G01N27/406 , H01M8/04126 , H01M8/04291 , H01M8/04514 , H01M8/04522 , H01M8/04567 , H01M8/04597 , H01M8/04656
摘要： A moisture sensor working to measure a moisture content of a specified measurement gas is provided which consists of an electrochemical cell having a first electrode exposed to the measurement gas and a second electrode exposed to a reference gas and a controller. The electrochemical cell outputs an electrical energy arising from chemical reaction of the measurement gas with the reference gas. The controller controls at least one of voltage appearing across and current flowing through the electrochemical cell and uses one of them to measure the moisture content of the measurement gas. This enables the moisture content to be determined free from the humidify of the measurement gas.
摘要翻译：提供了用于测量特定测量气体的水分含量的湿度传感器，其由具有暴露于测量气体的第一电极的电化学电池和暴露于参考气体的第二电极和控制器组成。电化学电池输出由测量气体与参考气体的化学反应产生的电能。控制器控制流过电化学电池的两个电压和电流中的至少一个，并使用它们中的一个来测量测量气体的水分含量。这使得可以确定不含测量气体加湿的含水量。

3. 发明申请

US20040038098A1 Fuel cell system 有权
标题翻译：燃料电池系统
公开(公告)号：US20040038098A1
公开(公告)日：2004-02-26
申请号：US10628533
申请日：2003-07-29
申请人： DENSO CORPORATION
发明人： Tomonori Imamura , Akimasa Osaki
IPC分类号： H01M008/04
CPC分类号： H01M8/04119 , H01M8/04126 , H01M8/04156
摘要： Provided is a fuel cell system capable of preventing a drop of power stemming from the water residence at an electrode portion or the shortage of water content in an electrolyte membrane. The system is equipped with an air pressure regulating valve for adjusting the pressure of air to be supplied to a fuel cell stack and a hydrogen pressure regulating valve for adjusting the pressure of hydrogen. In this system, the pressure difference between the air pressure and the hydrogen pressure is controlled through the regulating valves so that a minimum hydrogen pressure becomes higher than a maximum air pressure, or so that a minimum air pressure becomes higher than a maximum hydrogen pressure.
摘要翻译：提供一种燃料电池系统，其能够防止电极部分的水停留产生的功率下降或电解质膜中的水分含量不足。该系统配备有用于调节供给到燃料电池堆的空气的压力的气压调节阀和用于调节氢的压力的氢压调节阀。在该系统中，通过调节阀控制空气压力和氢气压力之间的压力差，使得最小氢气压力变得高于最大空气压力，或者使得最小空气压力变得高于最大氢气压力。

4. 发明申请

US20040033399A1 Fuel cell control system 有权
标题翻译：燃料电池控制系统
公开(公告)号：US20040033399A1
公开(公告)日：2004-02-19
申请号：US10629586
申请日：2003-07-30
申请人： Denso Corporation
发明人： Tomonori Imamura , Akimasa Osaki , Toshiyuki Kawai , Hideshi Izuhara
IPC分类号： H01M008/04 , G05F001/10
CPC分类号： H01M8/04291 , H01M8/04007 , H01M8/04029 , H01M8/04119 , H01M8/0432 , H01M8/04552 , H01M8/04589 , H01M8/04671 , H01M8/04679 , H01M8/04753 , H01M8/04828 , H01M8/04947 , H01M8/04955 , H01M8/04992
摘要： A plurality of individual fuel cells are connected in series with each other to construct the fuel cell. The fuel cell is diagnosed on the basis of an average output voltage Va of the individual cells, their standard deviation null, individual output voltages, their variances null2 of vibration components and their voltage drop speed of their non-vibration components. For example, if Va is within a normal range and moreover at least one of the individual output voltages is not within a normal range, it is diagnosed that water blocks the fuel electrode. If Va is not within a normal range and moreover a is within a normal range, it is diagnosed that the electrolyte film is dried. Further, if Va is not within a normal range and moreover null is not within a normal range, it is diagnosed that the fuel (hydrogen) supply is insufficient.
摘要翻译：多个单独的燃料电池彼此串联连接以构成燃料电池。基于单个电池的平均输出电压Va，它们的标准偏差σ，各个输出电压，它们的振动分量的σσ2和它们的非振动分量的压降速度来诊断燃料电池。例如，如果Va在正常范围内，此外，各个输出电压中的至少一个不在正常范围内，则诊断为水阻挡燃料电极。如果Va不在正常范围内，而且a在正常范围内，则诊断为电解质膜被干燥。此外，如果Va不在正常范围内，而且σ不在正常范围内，则诊断为燃料（氢）供给不足。

5. 发明申请

US20040101724A1 Fuel cell system 有权
标题翻译：燃料电池系统
公开(公告)号：US20040101724A1
公开(公告)日：2004-05-27
申请号：US10704657
申请日：2003-11-12
申请人： DENSO CORPORATION
发明人： Tomonori Imamura , Akimasa Osaki
IPC分类号： H01M008/04
CPC分类号： H01M8/0494 , H01M8/04223 , H01M8/04228 , H01M8/04552 , H01M8/04604 , H01M8/04626 , H01M8/04671 , H01M8/04753 , H01M8/04955 , H01M8/241 , H01M8/2457
摘要： A fuel cell generates electric power based on electrochemical reaction of reaction gases. A gas feed stopping device stops the feed of reaction gases into the fuel cell. At the time the power generation by the fuel cell is terminated, the fuel cell continues power generation for a while under a condition that the feed of one of the reaction gases is stopped by the gas feed stopping means. With this operation, the residual reaction gas in the fuel cell is consumed smoothly while the fuel cell continues power generation after the feed of one reaction gas is stopped. The electric potential of a cathode electrode decreases promptly. Deterioration of the cathode electrode is surely prevented.
摘要翻译：燃料电池基于反应气体的电化学反应产生电力。气体供给停止装置阻止反应气体进入燃料电池。在燃料电池的发电终止的时刻，燃料电池在一个反应气体的供给被供气停止装置停止的条件下继续发电一段时间。通过该操作，燃料电池中的残留反应气体顺利消耗，同时燃料电池在一个反应气体的供给停止之后继续发电。阴极电极的电位迅速下降。可靠地防止阴极电极的恶化。

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