Means for measuring the liquid level in a reservoir for a fuel cell
    1.
    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
    2.
    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
    3.
    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 of diluting hydrogen gas exhausted from a fuel cell
    5.
    发明授权
    Method of diluting hydrogen gas exhausted from a fuel cell 有权
    稀释从燃料电池排出的氢气的方法

    公开(公告)号:US06426158B1

    公开(公告)日:2002-07-30

    申请号:US09620234

    申请日:2000-07-20

    IPC分类号: H01M804

    CPC分类号: H01M8/0662

    摘要: A method of diluting reacted fuel gas that is exhausted from a fuel cell. The reacted fuel gas is transferred from the fuel cell (10) into a hydrogen diluting mechanism (16) prior to release into the atmosphere, so that when the reacted fuel gas is subsequently released into the atmosphere, the percentage of hydrogen immediately surrounding the fuel cell does not exceed 4 percent by volume.

    摘要翻译: 一种稀释从燃料电池排出的反应的燃料气体的方法。 反应的燃料气体在释放到大气中之前从燃料电池(10)转移到氢稀释机构(16)中,使得当反应的燃料气体随后释放到大气中时,立即围绕燃料的氢气的百分比 电池不超过4%。

    Method and apparatus for managing fuel cell performance
    6.
    发明授权
    Method and apparatus for managing fuel cell performance 有权
    燃料电池性能管理方法和装置

    公开(公告)号:US06423434B1

    公开(公告)日:2002-07-23

    申请号:US09370157

    申请日:1999-08-09

    IPC分类号: H01M804

    摘要: A method and apparatus for managing the performance of a fuel cell system (100) using an agitation means (150). The method of managing the performance involves, monitoring operational parameters (110) of individual fuel cells and the overall fuel cell system, comparing performance parameters (120) of the system against target values, selecting a control method (130) from a set of available control methods based on the result of comparison of the performance parameters against the target values and using that control method to initiate and control an agitation process, and actuating (140) an agitation means using the selected control method so as alter the monitored operational parameters (160).

    摘要翻译: 一种用于使用搅拌装置(150)管理燃料电池系统(100)的性能的方法和装置。 管理性能的方法涉及监测单个燃料电池和整个燃料电池系统的操作参数(110),将系统的性能参数(120)与目标值进行比较,从可用的一组中选择控制方法(130) 基于性能参数与目标值比较的结果的控制方法,并且使用该控制方法来启动和控制搅拌过程,以及使用所选择的控制方法致动(140)搅拌装置,以便改变监控的操作参数( 160)。

    Portable fuel cell power supply
    7.
    发明授权
    Portable fuel cell power supply 有权
    便携式燃料电池电源

    公开(公告)号:US06268077B1

    公开(公告)日:2001-07-31

    申请号:US09260097

    申请日:1999-03-01

    IPC分类号: H01M810

    摘要: The invention provides a device for generating energy, utilizing a fuel cell. Air is freely guided to the fuel cell, while a fuel gas is provided to the fuel cell from a pressurized fuel supply via a regulator. The portable power supply is most applicable to use with handheld electric devices, and contains a fuel storage means (110) for storing a supply of fuel, a fuel delivery means (120) connected to the fuel storage means, an energy conversion device (140) connected to the fuel delivery means for converting the fuel to electricity. The fuel storage means, the fuel delivery means, and the energy conversion device are all contained in a volume less than 500 cubic centimeters.

    摘要翻译: 本发明提供一种利用燃料电池产生能量的装置。 空气被自由地引导到燃料电池,同时燃料气体通过调节器从加压燃料供给到燃料电池。 便携式电源最适用于手持式电气设备,并且包括用于存储燃料供应的燃料储存装置(110),连接到燃料存储装置的燃料输送装置(120),能量转换装置(140) )连接到用于将燃料转换成电力的燃料输送装置。 燃料储存装置,燃料输送装置和能量转换装置都包含在小于500立方厘米的容积中。

    Fuel cell having porous electrodes and method for forming same
    8.
    发明授权
    Fuel cell having porous electrodes and method for forming same 失效
    具有多孔电极的燃料电池及其形成方法

    公开(公告)号:US06926990B2

    公开(公告)日:2005-08-09

    申请号:US10231828

    申请日:2002-08-29

    摘要: A fuel cell device has a composite particle electrode (200) formed using particles (210) having a combination of ion conductor material, electron conductor material, and catalyst material. Each composite particle (210) is preferably formed to have a substantially spherical outer layer (480) of ion conductor material (481) with conductive and catalyst particles (482, 484) are dispersed throughout the outer layer (480). An array of composite particles (210) is layered in a substantially structured or ordered manner on a membrane support structure (220) to form the fuel cell electrode. A fuel cell electrode so formed has interstitial gaps between the composite particles that result in a structure permeable to oxygen and other fluids.

    摘要翻译: 燃料电池装置具有使用具有离子导体材料,电子导体材料和催化剂材料的组合的粒子(210)形成的复合粒子电极(200)。 每个复合颗粒(210)优选形成为具有离子导体材料(481)的基本上球形的外层(480),其中导电和催化剂颗粒(482,484)分散在整个外层(480)中。 复合颗粒(210)的阵列以基本上结构化或有序的方式层叠在膜支撑结构(220)上以形成燃料电池电极。 如此形成的燃料电池电极在复合颗粒之间具有间隙,导致可渗透氧气和其它流体的结构。

    Method and apparatus for cold temperature operation of fuel cells utilizing hydrides having different heat capacities

    公开(公告)号:US06586124B2

    公开(公告)日:2003-07-01

    申请号:US09817336

    申请日:2001-03-26

    IPC分类号: H01M804

    摘要: An apparatus and method for temperature regulation of a fuel cell using differential heat capacity of the fuel storage media is disclosed. The method of regulating the temperature involves measuring the temperature of one or more fuel cells, comparing the temperature against target values, selecting a control method from a set of available control methods based on the result of comparison and using that control method to initiate and control a regulation cycle, and actuating a flow control means using the selected control method to alter the flow of fuel between one or more fuel storage containers, each containing fuel storage media which exhibit different enthalpies of formation and dissociation. The regulation process starts with measuring temperature (110) of a fuel cell system (100). The measured temperature is then compared (120) to a predetermined set of ideal target values designed to provide peak fuel cell performance. Following the comparison step, a control method (130) is selected from a list of available control methods. The control method has the necessary parameters and logic to define an fuel flow initiation process (140) which in turn actuates a flow control means (150). Actuation of the flow control means changes the temperature of the one or more fuel cells and alters its operating parameters (160).

    Method and apparatus for determining the amount of hydrogen in a vessel
    10.
    发明授权
    Method and apparatus for determining the amount of hydrogen in a vessel 有权
    用于确定容器中氢的量的方法和装置

    公开(公告)号:US06584825B2

    公开(公告)日:2003-07-01

    申请号:US09928607

    申请日:2001-08-13

    IPC分类号: G01N1910

    摘要: An apparatus and method for measuring the quantity of hydrogen in a hydrogen storage vessel of a hydrogen fuel cell using the Pressure, Composition, Temperature (PCT) relationship of the storage media is disclosed. The method of measuring the quantity of hydrogen involves, measuring the temperature 310 of the hydrogen storage media at one or more points on the hydrogen storage vessel 300, measuring the mechanical strain 320 at one or more points on the hydrogen storage vessel, computing the pressure 330 inside the vessel based on the strain measurements, referring to a lookup table 340 or an equation representing the discharge PCT curve for the particular composition of the hydrogen storage media at the measured temperature and computing the hydrogen concentration at the measured pressure. The changes in temperature and pressure during hydrogen absorption-desorption which are characteristic of hydride storage media air is used to measure the hydrogen concentration in the storage vessel and the hydrogen to metal hydride.

    摘要翻译: 公开了一种使用存储介质的压力,组成,温度(PCT)关系测量氢燃料电池的储氢容器中氢的量的装置和方法。 测量氢气量的方法包括:在储氢容器300上的一个或多个点处测量储氢介质的温度310,在储氢容器的一个或多个点测量机械应变320,计算压力 330,根据应变测量,参考查找表340或表示在测量的温度下储氢介质的特定组成的排放PCT曲线的方程,并计算测量压力下的氢浓度。 氢吸收 - 解吸附的温度和压力变化是氢化物储存介质空气的特征,用于测量储存容器中的氢气浓度和金属氢化物的氢浓度。