Means for measuring the liquid level in a reservoir for a fuel cell
    2.
    发明授权
    Means for measuring the liquid level in a reservoir for a fuel cell 有权
    用于测量用于燃料电池的储存器中的液位的装置

    公开(公告)号:US06869708B2

    公开(公告)日:2005-03-22

    申请号:US10621199

    申请日:2003-07-16

    摘要: A small fuel cell (10) powers a portable electronic device (12) and contains a fuel reservoir (14) and a device (16) that measures the amount of liquid fuel (18) that is in the reservoir. The fuel cell operates on hydrogen that is obtained from a liquid hydrocarbon fuel, such as alcohol or other hydrocarbons. The liquid fuel is typically converted into hydrogen by a reforming process. The reservoir that is connected to the fuel cell has an indicia (19) that is readable by a human user of the portable electronic device, for measuring the amount of liquid hydrocarbon fuel that is present in the reservoir. Typically, the indicia consist of a sight glass, a capacitive element, a resistive element, a transparent portion of the reservoir, a float, or an acoustic transmitter coupled with an acoustic receiver.

    摘要翻译: 小型燃料电池(10)为便携式电子设备(12)供电并且包含测量储存器中的液体燃料(18)的量的燃料储存器(14)和装置(16)。 燃料电池对从液态烃燃料例如醇或其它烃获得的氢气进行操作。 液体燃料通常通过重整过程转化为氢。 连接到燃料电池的储存器具有可由便携式电子设备的人类用户读取的用于测量储存器中存在的液体碳氢化合物燃料的量的标记(19)。 通常,标记由视镜,电容元件,电阻元件,储存器的透明部分,浮子或与声学接收器耦合的声发射器组成。

    Fuel cell system having a replaceable getter element for purifying the fuel supply
    3.
    发明授权
    Fuel cell system having a replaceable getter element for purifying the fuel supply 有权
    燃料电池系统具有用于净化燃料供应的可更换的吸气元件

    公开(公告)号:US06689194B2

    公开(公告)日:2004-02-10

    申请号:US09803190

    申请日:2001-03-12

    IPC分类号: B01D5304

    摘要: Oxides of carbon and other impurities are removed from a hydrogen fuel supply stream (12) for a fuel cell (30). A getter element (20) sufficient for chemisorbing the oxides of carbon from the hydrogen is removably connected to the fuel cell anode side. The fuel stream is passed through the getter element so as to chemisorb the oxides of carbon onto the getter, thereby providing a purified stream of hydrogen (26) to the fuel cell anode. The getter is removed from the fuel cell when the getter is spent and replaced with a fresh getter.

    摘要翻译: 从用于燃料电池(30)的氢燃料供应流(12)中除去碳和其它杂质的氧化物。 足以化学吸附氢氧化物的吸气元件(20)可拆卸地连接到燃料电池阳极侧。 燃料流通过吸气剂元件,以便将碳的氧化物吸附到吸气剂上,从而向燃料电池阳极提供纯化的氢气流(26)。 当吸气剂消耗并用新鲜吸气剂更换时,吸气剂从燃料电池中取出。

    Method and apparatus for thermal management of fuel cell systems
    4.
    发明授权
    Method and apparatus for thermal management of fuel cell systems 有权
    燃料电池系统热管理方法和装置

    公开(公告)号:US06406808B1

    公开(公告)日:2002-06-18

    申请号:US09546337

    申请日:2000-04-10

    IPC分类号: H01M804

    摘要: A method and apparatus for managing thermal performance of a fuel cell system having a fuel cell assembly and a fuel storage container is disclosed. The fuel cell system 100 consists of one or more fuel cells 110, each having a major surface 140, and disposed next to each other in a side-by-side adjacent arrangement and a fuel storage container 120 having an exterior wall 150. The fuel cells 110 are positioned such that distance between the major surfaces 140 and the fuel storage container wall 150 along a direction normal to the major surfaces is substantially the same. In addition, one or more of the fuel cells are in thermal contact with the fuel storage container such that cell waste heat is transferred to the fuel storage container.

    摘要翻译: 公开了一种用于管理具有燃料电池组件和燃料储存容器的燃料电池系统的热性能的方法和装置。 燃料电池系统100由一个或多个燃料电池110组成,每个燃料电池110各自具有主表面140,并排设置在彼此并排的相邻布置中,以及具有外壁150的燃料存储容器120.燃料 定位单元110使得主表面140与燃料储存容器壁150之间沿垂直于主表面的方向的距离基本相同。 此外,一个或多个燃料电池与燃料储存容器热接触,使得电池废热转移到燃料储存容器。

    Method and apparatus for producing molded parts
    6.
    发明授权
    Method and apparatus for producing molded parts 失效
    用于生产模制件的方法和设备

    公开(公告)号:US5439622A

    公开(公告)日:1995-08-08

    申请号:US116632

    申请日:1993-09-07

    摘要: A mold (100) is constructed by forming a shell (125) having a back surface (127) and a mold surface (126) which defines a mold cavity (150), by forming a shell base (124) about the back surface (127) of the shell (125) so as to define an enclosed cavity (134) between the shell base (124) and the shell (125), and by filling the enclosed cavity (134) with substantially incompressible material (135).

    摘要翻译: 通过形成具有背表面(127)和模具表面(126)的壳体(125)来构造模具(100),该模具表面(126)限定模腔(150),通过围绕后表面形成壳体基座(124) 以便在壳体基座124和壳体125之间限定封闭空腔134,以及通过用基本不可压缩的材料(135)填充封闭空腔134。

    Use or organic acids in low residue solder pastes
    9.
    发明授权
    Use or organic acids in low residue solder pastes 失效
    在低残留焊膏中使用或有机酸

    公开(公告)号:US5064481A

    公开(公告)日:1991-11-12

    申请号:US524540

    申请日:1990-05-17

    CPC分类号: B23K35/3618 B23K35/36

    摘要: Fluxing compositions are described containing as fluxing agents compounds of the formula: ##STR1## where R is an electron withdrawing group. In one embodiment, R is selected from the group consisting of fluorine, chlorine, bromine, iodine, sulfur, hydroxyl, nitrile, and benzyl. The compound cleans oxides from the printed circuit boards (PCBs) under assembly and then volatilize with little or no need for a cleaning step, or cleaning only with water or formic acid. Very little or no undesired residue remains. Such acid fluxing agents can be used mixed with typical solder formulations, such as lead/tin solder pastes, or applied topically to solders, such as solder balls; both techniques permit the assembly of PCBs more easily with high quality bonds, and with little or no residue. Malic acid is a preferred organic acid fluxing agent.

    摘要翻译: 描述了助熔组合物,其含有下式的助熔剂化合物:其中R是吸电子基团。 在一个实施方案中,R选自氟,氯,溴,碘,硫,羟基,腈和苄基。 该复合物从组装的印刷电路板(PCB)中清除氧化物,然后几乎不需要清洁步骤或仅用水或甲酸清洗即可挥发。 很少或不需要不需要的残留物。 这种酸性助熔剂可以与典型的焊料配方(例如铅/锡焊膏)混合使用,或局部施用于焊料如焊料球; 这两种技术允许更容易地组装PCBs,具有高质量的键,并且几乎没有或没有残留物。 苹果酸是优选的有机酸助熔剂。