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    • 4. 发明申请
    • FUEL BATTERY
    • 燃油电池
    • US20090130520A1
    • 2009-05-21
    • US12305209
    • 2007-10-18
    • Tomohiro OgawaKimihide HorioMasaru TsunokawaIkuyasu Kato
    • Tomohiro OgawaKimihide HorioMasaru TsunokawaIkuyasu Kato
    • H01M8/10
    • H01M8/04089H01M8/0258H01M8/241H01M8/2457
    • A fuel cell that can prevent local accumulation of a reaction-irrelevant gas in the fuel cell. A gas diffusion layer is stacked on a membrane electrode assembly, which is a stack of an electrolyte membrane and electrode catalyst layers. A separator including gas flow channels is attached to the gas diffusion layer such that the gas flow channels are adjacent to the gas diffusion layer. A gas distribution channel through which gas supplied to the membrane electrode assembly flows is formed in the separator. The gas flow channels communicate with the gas distribution channel at upstream ends thereof and are substantially closed at downstream ends thereof. The gas flow channels are configured so that downstream parts of the gas flow channels and upstream parts of the gas flow channels are adjacent to each other.
    • 一种燃料电池,其可以防止燃料电池中反应无关的气体的局部积聚。 气体扩散层层叠在作为电解质膜和电极催化剂层的堆叠的膜电极接合体上。 包括气体流动通道的分离器附接到气体扩散层,使得气体流动通道与气体扩散层相邻。 在隔板中形成供给膜电极组件的气体流过的气体分配通道。 气体流动通道在其上游端与气体分配通道连通,并且在其下游端基本上闭合。 气体流动通道被构造成使得气体流动通道的下游部分和气体流动通道的上游部分彼此相邻。
    • 5. 发明授权
    • Gas-liquid separator for a heat pump type air conditioning system using
a gas-injection cycle
    • 用于使用气体注入循环的热泵式空调系统的气液分离器
    • US5692394A
    • 1997-12-02
    • US706329
    • 1996-08-30
    • Yukikatsu OzakiMasaru Tsunokawa
    • Yukikatsu OzakiMasaru Tsunokawa
    • F25B1/00F25B1/10F25B13/00F25B41/04F25B43/00F25B39/04
    • F25B41/04F25B1/10F25B13/00F25B2400/13F25B2400/23
    • A gas-liquid separator for a heat pump type air conditioning system using a gas-injection cycle, which system can switch its mode of operation between heating and cooling modes, includes a reservoir for receiving refrigerant in a gas-liquid two-phase flow, an exit port which opens at a upper portion of the reservoir and allows a refrigerant gas to flow out of the reservoir, first and second ports which are provided at a upper part within the reservoir above the level of a refrigerant liquid and allows the refrigerant to flow into and out of the reservoir. A first refrigerant path for allowing the first port to fluidly communicate with the refrigerant liquid in the reservoir, a second refrigerant path for allowing the first port to fluidly communicate with the refrigerant gas above the level of the refrigerant liquid in the reservoir, a third refrigerant path for allowing the second port to fluidly communicate with the refrigerant liquid in the reservoir, and a fourth refrigerant path for allowing the second port to fluidly communicate with the refrigerant gas above the level of the refrigerant liquid in the reservoir are provided within the reservoir. The second and third refrigerant path open when a refrigerant enters the reservoir through the first port, and the first and fourth refrigerant path open when a refrigerant enters the reservoir through the second port.
    • 一种用于使用气体注入循环的热泵式空调系统的气液分离器,该系统可以在加热和冷却模式之间切换其运行模式,包括用于在气液两相流中接收制冷剂的储存器, 出口,其在储存器的上部开口并允许制冷剂气体从储存器流出;第一和第二端口,其设置在储存器的上部,高于制冷剂液体的高度,并允许制冷剂 流入和流出水库。 第一制冷剂路径,用于允许第一端口与贮存器中的制冷剂液体流体连通;第二制冷剂路径,用于允许第一端口与制冷剂气体在贮存器中的制冷剂液体的液面之上流体连通;第三制冷剂路径, 用于允许第二端口与储存器中的制冷剂液体流体连通的路径,以及用于允许第二端口与位于储存器中的制冷剂液体高度之上的制冷剂气体流体连通的第四制冷剂路径。 当制冷剂通过第一端口进入储存器时,第二和第三制冷剂通道打开,并且当制冷剂通过第二端口进入储存器时,第一和第四制冷剂通道打开。
    • 6. 发明申请
    • FUEL CELL, FUEL CELL SYSTEM, AND CONTROL METHOD OF FUEL CELL SYSTEM
    • 燃料电池系统和燃料电池系统的控制方法
    • US20100003549A1
    • 2010-01-07
    • US12374741
    • 2007-09-07
    • Hisayoshi OtaKazuyori YamadaMasaru TsunokawaManabu KatoHiroo Yoshikawa
    • Hisayoshi OtaKazuyori YamadaMasaru TsunokawaManabu KatoHiroo Yoshikawa
    • H01M8/10H01M8/04
    • H01M8/04582H01M8/0265H01M8/04089H01M8/04231H01M8/04447H01M8/04552H01M8/04761
    • A fuel cell stack includes: a first cell having a first fuel gas flow path; and a second cell having a second fuel gas flow path constructed to have a specific flow path structure having a higher potential for a decrease in concentration of a fuel gas than that of the first fuel gas flow path during power generation. A sensor is located on the second cell to detect a decrease in concentration of the fuel gas during power generation. In one exemplified structure, a groove formed on an anode separator of the second cell as the second fuel gas flow path has a restriction element to narrow the sectional area of flow passage. A hydrogen concentration sensor is located in a non-narrowed area in the downstream of the restriction element having a lower pressure level. Impurity gas discharge control discharges an anode off gas out of the fuel cell stack, in response to detection of a decrease in hydrogen concentration to or below a preset reference level by the hydrogen concentration sensor. This arrangement of the invention enables the effective use of the fuel gas and prevents deterioration of membrane electrode assemblies of the fuel cell stack by carbon oxidation in an anode dead end-type fuel cell system.
    • 燃料电池堆包括:具有第一燃料气体流路的第一电池; 以及具有第二燃料气体流路的第二单元,其构造成具有在发电期间具有比第一燃料气体流路的燃料气体浓度降低的更高的电位的特定流路结构。 传感器位于第二电池上,以检测在发电期间燃料气体浓度的降低。 在一个示例性结构中,形成在作为第二燃料气体流路的第二电池的阳极隔板上的槽具有用于使流路的截面积变窄的限制元件。 氢浓度传感器位于具有较低压力水平的限制元件的下游的非变窄区域中。 响应于通过氢浓度传感器检测到氢浓度降低到预设参考水平或低于预设参考水平,杂质气体放电控制将阳极排出燃料电池堆。 本发明的这种布置能够有效地利用燃料气体,并且通过在阳极死端型燃料电池系统中的碳氧化来防止燃料电池堆的膜电极组件的劣化。