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公开(公告)号：EP1403947A2
公开(公告)日：2004-03-31
申请号：EP03018056.6
申请日：2003-08-07
发明人： Shibata, Soichi , Kusakabe, Hiroki , Hatoh, Kazuhito , Hase, Nabuhiro , Takeguchi, Shinsuke , Ohara, Hideo , Matsumoto, Toshihiro , Kokawa, Katsuzou , Urata, Takayuki
CPC分类号： H01M8/026 , H01M4/8605 , H01M8/0232 , H01M8/0234 , H01M8/0245 , H01M8/1007
摘要： A fuel cell having high operation performance and reliability is provided by optimizing the shape and properties of a gas diffusion layer and the dimensions of a gas flow channel. The fuel cell is capable of evenly supplying a reaction gas to the catalyst of a catalyst layer and promptly discharging excessive water generated therein. The gas diffusion layer of the MEA of this fuel cell comprises a first section having a surface A that comes in direct contact with a separator plate and a second section having a surface B that faces the gas flow channel of the separator plate. The porosity of the first section is lower than the porosity of the second section, and the second section protrudes into the gas flow channel. The gas flow channel has sufficient width and depth for the protrusion of the gas diffusion layer, and the width of a rib formed by the gas flow channel is sufficiently narrow.
摘要翻译： 通过优化气体扩散层的形状和性质以及气体流动通道的尺寸来提供具有高操作性能和可靠性的燃料电池。 燃料电池能够将反应气体均匀地供给至催化剂层的催化剂，并迅速排出其中产生的过量的水。 该燃料电池MEA的气体扩散层包括具有与隔板直接接触的表面A的第一部分和具有面向隔板的气体流动通道的表面B的第二部分。 第一部分的孔隙率低于第二部分的孔隙率，并且第二部分突出到气体流动通道中。 气体流路具有足够的宽度和深度以用于气体扩散层的突出，并且由气体流路形成的肋的宽度足够窄。
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公开(公告)号：EP1291951A2
公开(公告)日：2003-03-12
申请号：EP02256260.7
申请日：2002-09-10
发明人： Hatoh, Kazuhito , Kusakabe, Hiroki , Ohara, Hideo , Kobayashi, Susumu , Yamazaki, Tatsuto , Hase, Nobuhiro , Takeguchi, Shinsuke
IPC分类号： H01M8/24
CPC分类号： H01M8/0226 , H01M8/0221 , H01M8/0247 , H01M8/0267 , H01M8/0276 , H01M8/04029 , H01M8/04126 , H01M8/241 , H01M8/2457 , H01M8/248 , H01M8/2483 , H01M8/2485 , H01M2300/0082
摘要： End plates of a fuel cell are conventionally made by cutting metal plates. Therefore, they have problems in that it is difficult to reduce their cost, and they are inconveniently heavy, and they are likely to be corroded by supplied gases and cooling water since they contact such gases and water at inside surfaces of manifold holes of the metal end plates.
According to the present invention, the end plates are made of a resin-dominant material, more preferably by injection-molding such material, so that it becomes possible to reduce the cost and weight of the end plates, and the corrosion resistance can be greatly improved by insert-molding the current collecting plates in such a manner that the end plate material extends into a manifold hole of each current collecting plate.-
公开(公告)号：EP1220347A2
公开(公告)日：2002-07-03
申请号：EP01310790.9
申请日：2001-12-21
发明人： Yamazaki, Tatsuto , Yamamoto, Yoshiaki , Kusakabe, Hiroki , Ohara, Hideo , Hase, Nobuhiro, Room 545 Shofu-ryo , Takeguchi, Shinsuke, Room 226, Showa-ryo
CPC分类号： H01M8/0247 , H01M8/0228 , H01M8/0258 , H01M8/0263 , H01M8/0267 , H01M8/241 , H01M8/2457 , H01M8/2483 , H01M2300/0082
摘要： Disclosed is a polymer electrolyte fuel cell including improved separators that cause no mixing of a fuel gas and an oxidant gas. The polymer electrolyte fuel cell comprises a plurality of membrane electrode assemblies and a plurality of conductive separators, wherein the plurality of conductive separators comprise at least one separator (10) comprising: a fuel gas inlet-side manifold aperture (12a); a fuel gas outlet-side manifold aperture (12b); a gas flow channel (24) for fuel gas formed on an anode-side of the separator; an inlet-side through hole (25a) and an outlet-side through hole (25b) penetrating the separator which are formed at an inlet-side end and an outlet-side end of the gas flow channel for fuel gas; and an inlet-side connection groove and an outlet-side connection groove for connecting the inlet-side and outlet-side through holes with the fuel gas inlet-side manifold aperture and the fuel gas outlet-side manifold aperture, respectively, which are formed on a cathode-side of the separator.
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公开(公告)号：EP0710827A3
公开(公告)日：1997-04-23
申请号：EP95117443.2
申请日：1995-11-06
IPC分类号： G01L23/18
CPC分类号： G01L23/18
摘要： A body of a combustion pressure sensor is divided into two parts, a cylindrical lower body (2) and a cylindrical upper body (4). A diaphragm (7) and a pressure sensing element (9) are attached to the lower end and the upper end of the lower body, respectively, and a pressure transmission member (8) connects the diaphragm and the pressure sensing element. The upper body is connected to the lower body to cover the pressure sensing element in such a manner that the connection part is disposed remote from the pressure sensing element.
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公开(公告)号：EP0637736A3
公开(公告)日：1995-05-10
申请号：EP94112219.4
申请日：1994-08-04
摘要： A sensor for detecting the combustion pressure of an engine, in which an upper fixing member and a casing are fixed while a pre-load is being applied to the upper fixing member, so that a pre-load may be applied to a piezoelectric element. Moreover, a tubular diaphragm for transforming a pressure into a stain and a pressure receiving face for receiving the combustion pressure are connected to each other through a plunger so that they may be kept away from each other.
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公开(公告)号：EP0447255A2
公开(公告)日：1991-09-18
申请号：EP91302229.9
申请日：1991-03-15
摘要： Members as an upper fixing screw (16), piezoelectric element (15), a pressure transmitting member (14) are located closer to region of an engine to be measured and the like than a fitting thread portion (12) of a sensor casing (11) so that a pre-stress on the piezoelectric element (15) can be constantly maintained at a predetermined value, thus enabling pressure measurement with a high degree of accuracy. Further, a projecting portion or a spacer is provided on the backside of a pressure receiving surface (13) in order to ensure the surface contact between the pressure transmitting member (14) and the back surface of the pressure receiving surface, thus preventing the stress from concentrating on corners of the bottom surface of the pressure transmitting member.
摘要翻译： 作为上固定螺钉（16），压电元件（15），压力传递构件（14）的构件比传感器壳体的安装螺纹部分（12）更靠近待测发动机的区域 11），使得压电元件（15）上的预应力可以恒定地保持在预定值，从而能够以高精度进行压力测量。 此外，为了确保压力传递部件（14）与受压面的背面之间的表面接触，在受压面（13）的背面设有突出部或间隔件，能够防止受压面 集中在压力传递部件的底面的角部。
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37.发明公开Fuel cell system, operating method thereof, program and recording medium 审中-公开一种燃料电池系统，操作，程序，以及记录介质的方法
公开(公告)号：EP1544933A3
公开(公告)日：2007-12-19
申请号：EP04029872.1
申请日：2004-12-16
CPC分类号： H01M8/0612 , H01M8/0263 , H01M8/0267 , H01M8/04007 , H01M8/04022 , H01M8/04074 , H01M8/04126 , H01M8/04291 , H01M8/04365 , H01M8/04373 , H01M8/04731 , H01M8/04738 , H01M8/04835 , H01M8/241 , H01M8/242 , H01M8/2457 , H01M8/2483
摘要： A fuel cell system comprising the stack having a gas distribution means of guiding reaction gas into electrodes of respective single cells, the gas supplying sections for supplying the reaction gas to the stack, the gas humidifying section for humidifying the reaction gas which are disposed between the gas supplying sections and the electrode inlet of the gas distribution means, and the controlling section for controlling the water vapor content of the reaction gas supplied at least to one of the electrodes so as to exceed the saturated water vapor content at the temperature of at least one of the electrode inlets of the gas distribution means.
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公开(公告)号：EP1450432A3
公开(公告)日：2007-03-21
申请号：EP04003796.2
申请日：2004-02-19
发明人： Matsumoto, Toshihiro , Tomizawa, Takeshi , Kokawa, Katsuzou , Kanbara, Teruhisa , Kobayashi, Susumu , Hatoh, Kazuhito , Kusakabe, Hiroki , Ohara, Hideo , Takeguchi, Shinsuke , Shibata, Soichi
CPC分类号： H01M4/926 , H01M8/0206 , H01M8/0213 , H01M8/0258 , H01M8/0263 , H01M8/0267 , H01M8/241 , H01M8/2457 , H01M8/2483 , H01M8/2484 , H01M8/2485
摘要： The invention aims at providing a fuel cell capable of highly efficient and stable operation, by eliminating the flooding caused by condensed water and generated water during low-load operation, and by inhibiting the increase in the pressure drop at high loads. A fuel cell that does not flood, particularly during low-load operation, in accordance with the invention is realized by forming multiple independent gas flow channels having independent inlet-side and outlet-side manifold holes in the separator surface, and by connecting these in series or in parallel.
This connection can be obtained through switching means characterised in that:
the inlets and outlets of such switchable channel means are maintained in both operational modes in a manner that in both operational modes the switchable channel means are fed by their fluid in the same direction of circulation.摘要翻译： 本发明旨在提供一种能够高效稳定运行的燃料电池，通过消除在低负载运行期间由冷凝水和产生的水引起的溢流，并且通过抑制高负载下的压降的增加。 根据本发明，特别是在低负载运行期间不泛洪的燃料电池通过在分离器表面中形成具有独立的入口侧和出口侧歧管孔的多个独立的气体流动通道，并且将它们连接在 系列或并行。 这种连接可以通过开关装置获得，其特征在于：这种可切换通道装置的入口和出口保持在两种操作模式中，使得在两种操作模式中，可切换通道装置由它们的流体在相同的循环方向 。
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39.发明公开Method for detecting possible structural deficiencies of a polymer electrolyte fuel cell 审中-公开用于检测聚合物电解质燃料电池的可能的结构缺陷的方法
公开(公告)号：EP1487044A3
公开(公告)日：2006-07-19
申请号：EP04008483.2
申请日：2004-04-07
发明人： Kusakabe, Hiroki , Hatoh, Kazuhito , Ohara, Hideo , Takeguchi, Shinsuke , Shibata, Soichi , Arisaka, Shinichi , Takebe, Yasuo
CPC分类号： H01M8/04089 , H01M8/04552 , H01M8/04671 , H01M8/1007
摘要： To realize a polymer electrolyte fuel cell with an increased level of safety by providing a method for easily and accurately detecting a cross leak or a micro short-circuit resulting from the initial failure or the deterioration of durability, specifically, by providing a method for operating a polymer electrolyte fuel cell comprising a stack of unit cells, each of the cells comprising a polymer electrolyte membrane, a pair of electrodes sandwiching the polymer electrolyte membrane, and electroconductive separators, which generates electricity with the supply of a fuel gas containing hydrogen to one of the electrodes and an oxidant gas containing oxygen to the other of the electrodes, in which an electric output of a single cell or a group of cells is checked after the stoppage of the supply of the fuel and oxidant gases to detect a defective cell or a defective group of cells in the fuel cell.
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公开(公告)号：EP1291951A3
公开(公告)日：2006-05-24
申请号：EP02256260.7
申请日：2002-09-10
发明人： Hatoh, Kazuhito , Kusakabe, Hiroki , Ohara, Hideo , Kobayashi, Susumu , Yamazaki, Tatsuto , Hase, Nobuhiro , Takeguchi, Shinsuke
IPC分类号： H01M8/24
CPC分类号： H01M8/0226 , H01M8/0221 , H01M8/0247 , H01M8/0267 , H01M8/0276 , H01M8/04029 , H01M8/04126 , H01M8/241 , H01M8/2457 , H01M8/248 , H01M8/2483 , H01M8/2485 , H01M2300/0082
摘要： End plates of a fuel cell are conventionally made by cutting metal plates. Therefore, they have problems in that it is difficult to reduce their cost, and they are inconveniently heavy, and they are likely to be corroded by supplied gases and cooling water since they contact such gases and water at inside surfaces of manifold holes of the metal end plates.
According to the present invention, the end plates are made of a resin-dominant material, more preferably by injection-molding such material, so that it becomes possible to reduce the cost and weight of the end plates, and the corrosion resistance can be greatly improved by insert-molding the current collecting plates in such a manner that the end plate material extends into a manifold hole of each current collecting plate.摘要翻译： 燃料电池的端板通常通过切割金属板制成。 因此，它们存在的问题是难以降低成本，并且它们不方便沉重，并且由于它们在金属的歧管孔的内表面处接触这些气体和水，所以它们可能被供给的气体和冷却水腐蚀 端板。 根据本发明，端板由树脂主导材料制成，更优选通过注射成型这种材料，从而可以降低端板的成本和重量，并且耐腐蚀性可以大大地提高 通过插入模制集流板以使得端板材料延伸到每个集流板的歧管孔中而得到改进。
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