Water sources for automotive devices
    11.
    发明授权
    Water sources for automotive devices 失效
    汽车设备用水源

    公开(公告)号:US06804949B2

    公开(公告)日:2004-10-19

    申请号:US10226361

    申请日:2002-08-22

    IPC分类号: F01N300

    摘要: The present invention provides a self-replenishing liquid water source onboard an automobile for supplying liquid water to an electrolyzer, such as an on-board hydrogen generator useful for the suppression of unwanted emissions. While automobiles typically have water reservoirs resupplied by a person, the invention provides a passive means of water collection for reliable replenishment due to operations of the automobile itself. The invention provides condensate from the engine exhaust gas by cooling a region of the exhaust system using cooling fluid from the engine coolant system. The cooling fluid is circulated during a period following the engine cold start event when the heat load on the engine coolant system is low.

    摘要翻译: 本发明提供了一种用于向电解器供应液体水的汽车上的自补充液体水源,例如可用于抑制不期望的排放物的板上氢气发生器。 虽然汽车通常具有由人员补充的储水器,但是由于汽车本身的操作,本发明提供了一种被动的水收集装置,用于可靠的补给。 本发明通过使用来自发动机冷却剂系统的冷却流体冷却排气系统的区域来提供来自发动机废气的冷凝物。 当发动机冷启动事件发动机冷却系统的热负荷低时,冷却液循环。

    Apparatus and method for compressing a stack of electrochemical cells
    12.
    发明授权
    Apparatus and method for compressing a stack of electrochemical cells 失效
    用于压缩电化学电池堆的装置和方法

    公开(公告)号:US6040072A

    公开(公告)日:2000-03-21

    申请号:US974384

    申请日:1997-11-19

    IPC分类号: C25B9/18 H01M8/24

    CPC分类号: C25B9/18 H01M8/247

    摘要: The present invention provides an apparatus and method for assembling an electrochemical cell stack, or an assemblage of components which need to be clamped together, especially where minimizing the size and weight of the clamping mechanism is advantageous. The invention encompasses combining a band or strap to transmit load to a plurality of components. A metal link is provided to apply greater tension to the band than could normally be achieved with the band alone. The invention may provide a band having a spiral screw clamp wherein the screw portion is used to apply and control tension in the band and the band is used to transmit the tension to a plurality of components. The invention also provides systems that improve the distribution of the force over a portion of the assembly, preferably the entire area of at least one face of the assembly. The invention encompasses a system with straps surrounding a fuel cell stack placed between two end plates, with raised ridges placed under the strapping system to concentrate the compressive force at selected points on the endplates. The invention also encompasses a device comprising an array of adjustable elements that control the distribution of the compressive load.

    摘要翻译: 本发明提供一种用于组装电化学电池堆的装置和方法,或需要夹紧在一起的组件的组合,特别是在最小化夹紧机构的尺寸和重量的情况下是有利的。 本发明包括组合带或带以将负载传输到多个组件。 提供金属连接件以对带宽施加比通常可以单独实现的带宽更大的张力。 本发明可以提供具有螺旋螺旋夹具的带,其中螺钉部分用于施加和控制带中的张力,并且带用于将张力传递到多个部件。 本发明还提供了改善组件部分上的力的分布的系统,优选组件的至少一个面的整个区域。 本发明包括具有围绕放置在两个端板之间的燃料电池堆的带的系统,其具有放置在捆扎系统下方的凸脊,以将压缩力集中在端板上的选定点处。 本发明还包括一种包括控制压缩载荷分布的可调元件阵列的装置。

    Water sources for automotive electrolyzers
    13.
    发明授权
    Water sources for automotive electrolyzers 失效
    汽车电解槽水源

    公开(公告)号:US06464854B2

    公开(公告)日:2002-10-15

    申请号:US09494679

    申请日:2000-01-31

    IPC分类号: C25C102

    摘要: The present invention provides a self-replenishing liquid water source onboard an automobile for supplying liquid water to an electrolyzer, such as an on-board hydrogen generator useful for the suppression of unwanted emissions. While automobiles typically have water reservoirs resupplied by a person, the invention provides a passive means of water collection for reliable replenishment due to operations of the automobile itself. The invention provides condensate from the engine exhaust gas by cooling a region of the exhaust system using cooling fluid from the engine coolant system. The cooling fluid is circulated during a period following the engine cold start event when the heat load on the engine coolant system is low.

    摘要翻译: 本发明提供了一种用于向电解器供应液体水的汽车上的自补充液体水源,例如可用于抑制不期望的排放物的板上氢气发生器。 虽然汽车通常具有由人员补充的储水器,但是由于汽车本身的操作,本发明提供了一种被动的水收集装置,用于可靠的补给。 本发明通过使用来自发动机冷却剂系统的冷却流体冷却排气系统的区域来提供来自发动机废气的冷凝物。 当发动机冷启动事件发动机冷却系统的热负荷低时,冷却液循环。

    Lightweight metal bipolar plates and methods for making the same
    14.
    发明授权
    Lightweight metal bipolar plates and methods for making the same 失效
    轻质金属双极板及其制作方法

    公开(公告)号:US06426161B1

    公开(公告)日:2002-07-30

    申请号:US09699308

    申请日:2000-10-25

    IPC分类号: H01M214

    摘要: Thin, light weight bipolar plates for use in electrochemical cells are rapidly, and inexpensively manufactured in mass production by die casting, stamping or other well known methods for fabricating magnesium or aluminum parts. The use of a light metal, such as magnesium or aluminum minimizes weight and simultaneously improves both electrical and thermal conductivity compared to conventional carbon parts. For service in electrochemical cells these components must be protected from corrosion. This is accomplished by plating the surface of the light weight metal parts with a layer of denser, but more noble metal. The protective metal layer is deposited in one of several ways. One of these is deposition from an aqueous solution by either electroless means, electrolytic means, or a combination of the two. Another is deposition by electrolytic means from a non-aqueous solution, such as a molten salt.

    摘要翻译: 用于电化学电池的薄型,轻质双极板快速地通过压铸,冲压或用于制造镁或铝部件的众所周知的方法批量生产制造。 使用诸如镁或铝的轻金属最小化重量,并且与传统的碳部件相比同时提高了导电和导热性。 为了在电化学电池中使用,这些组件必须防止腐蚀。 这是通过用更致密,但更贵重的金属层对轻质金属部件的表面进行电镀来实现的。 保护金属层以几种方式之一沉积。 其中之一是通过无电解装置,电解装置或两者的组合从水溶液中沉积。 另一种是通过电解方法从非水溶液如熔融盐沉积。

    Lightweight metal bipolar plates and methods for making the same
    16.
    发明授权
    Lightweight metal bipolar plates and methods for making the same 有权
    轻质金属双极板及其制作方法

    公开(公告)号:US06203936B1

    公开(公告)日:2001-03-20

    申请号:US09261642

    申请日:1999-03-03

    IPC分类号: H01M486

    摘要: Thin, light weight bipolar plates for use in electrochemical cells are rapidly, and inexpensively manufactured in mass production by die casting, stamping or other well known methods for fabricating magnesium or aluminum parts. The use of a light metal, such as magnesium or aluminum minimizes weight and simultaneously improves both electrical and thermal conductivity compared to conventional carbon parts. For service in electrochemical cells these components must be protected from corrosion. This is accomplished by plating the surface of the light weight metal parts with a layer of denser, but more noble metal. The protective metal layer is deposited in one of several ways. One of these is deposition from an aqueous solution by either electroless means, electrolytic means, or a combination of the two. Another is deposition by electrolytic means from a non-aqueous solution, such as a molten salt.

    摘要翻译: 用于电化学电池的薄型,轻质双极板快速地通过压铸,冲压或用于制造镁或铝部件的众所周知的方法批量生产制造。 使用诸如镁或铝的轻金属最小化重量并同时改善电传导率和导热性,与常规碳部件相比。 为了在电化学电池中使用,这些组件必须防止腐蚀。 这是通过用更致密,但更贵重的金属层对轻质金属部件的表面进行电镀来实现的。 保护金属层以几种方式之一沉积。 其中之一是通过无电解装置,电解装置或两者的组合从水溶液中沉积。 另一种是通过电解方法从非水溶液如熔融盐沉积。

    Fuel cell system for low pressure operation
    19.
    发明授权
    Fuel cell system for low pressure operation 有权
    燃料电池系统用于低压运行

    公开(公告)号:US06410180B1

    公开(公告)日:2002-06-25

    申请号:US09523910

    申请日:2000-03-13

    IPC分类号: H01M486

    摘要: This invention is an improved fuel cell design for use at low pressure. The invention has a reduced number of component parts to reduce fabrication costs, as well as a simpler design that permits the size of the system to be reduced at the same time as performance is being improved. In the present design, an adjacent anode and cathode pair are fabricated using a common conductive element, with that conductive element serving to conduct the current from one cell to the adjacent one. This produces a small and simple system suitable for operating with gas fuels or alternatively directly with liquid fuels, such as methanol, dimethoxymethane, or trimethoxymethane. The use of these liquid fuels permits the storage of more energy in less volume while at the same time eliminating the need for handling compressed gases which further simplifies the fuel cell system. The electrical power output of the design of this invention can be further increased by adding a passage for cooling the stack through contact with a coolant.

    摘要翻译: 本发明是在低压下使用的改进的燃料电池设计。 本发明具有减少的部件数量以减少制造成本,以及更简单的设计,其允许在性能得到改善的同时减小系统的尺寸。 在本设计中,使用公共导电元件制造相邻的阳极和阴极对,该导电元件用于将电流从一个电池传导到相邻电池。 这产生适合于使用气体燃料或者直接与液体燃料如甲醇,二甲氧基甲烷或三甲氧基甲烷一起操作的小而简单的系统。 这些液体燃料的使用允许以更少的体积储存更多的能量,同时消除了处理压缩气体的需要,这进一步简化了燃料电池系统。 本发明设计的电力输出可以通过增加通过与冷却剂接触来冷却堆的通道进一步增加。