Vacuum-insulated exhaust treatment device with phase change materials and thermal management system
    1.
    发明授权
    Vacuum-insulated exhaust treatment device with phase change materials and thermal management system 有权
    具有相变材料和热管理系统的真空绝缘排气处理装置

    公开(公告)号:US06875407B1

    公开(公告)日:2005-04-05

    申请号:US09889623

    申请日:2000-01-21

    摘要: A thermally-activated exhaust treatment device, such as a catalytic converter (20) adapted to control exhaust emissions in a vehicle, includes a core having an inner housing (21) and a catalytic material (27) chosen to reduce undesirable emissions from the exhaust of a combustion engine. A jacket includes an outer housing (22) enclosing the inner housing (21) but characteristically not contacting the inner housing (21). The inner and outer housings (21, 22) include walls (30, 31) forming a vacuum-drawn sealed insulation cavity (26) around the inner housing (21). A chamber (60) positioned adjacent the inner housing (21) includes low melting point metal phase change material (61). A thermal management system is operably connected to the insulation cavity (26) that is constructed to control heat flow from the inner housing (21) to maximize the time the catalytic material (27) is within a predetermined optimum temperature operating range or limit catalyst maximum temperature.

    摘要翻译: 一种热活化废气处理装置,例如适于控制车辆中废气排放的催化转化器(20),包括具有内壳体(21)和催化材料(27)的芯体,所述内壳体(21)和催化材料(27)被选择以减少排气的不期望的排放 的内燃机。 护套包括封闭内壳体(21)的外壳(22),但特征在于不与内壳体(21)接触。 内壳体和外壳体(21,22)包括形成围绕内壳体(21)的真空拉伸密封绝缘腔(26)的壁(30,31)。 邻近内壳(21)定位的室(60)包括低熔点金属相变材料(61)。 热管理系统可操作地连接到绝缘腔(26),其被构造成控制来自内壳体(21)的热流,以使催化材料(27)在预定的最佳温度操作范围内或者限制催化剂最大值 温度。

    Humidification control during shutdown of a fuel cell system
    4.
    发明授权
    Humidification control during shutdown of a fuel cell system 有权
    燃料电池系统停机时的加湿控制

    公开(公告)号:US08168343B2

    公开(公告)日:2012-05-01

    申请号:US12184776

    申请日:2008-08-01

    IPC分类号: H01M8/04

    摘要: A process for controlling the length of a purge and the purge rate of a fuel cell stack at system shut-down so as to provide the desired amount of stack humidity. The membrane humidification is measured at system shut-down by a high frequency resistance sensor that detects membrane humidification and provides the measurement to a controller. The controller controls the compressor that provides cathode input air to the fuel cell stack so that the time of the purge and the flow rate of the purge provide a desired membrane humidity for the next start-up.

    摘要翻译: 用于在系统关闭时控制净化长度和燃料电池堆的吹扫速率以提供所需量的堆积湿度的方法。 通过检测膜加湿的高频电阻传感器在系统关闭时测量膜加湿,并向控制器提供测量。 控制器控制向燃料电池堆提供阴极输入空气的压缩机,使得净化时间和吹扫流量为下次启动提供期望的膜湿度。

    Cooking utensil with improved heat retention
    6.
    发明授权
    Cooking utensil with improved heat retention 失效
    具有改善保温性能的炊具

    公开(公告)号:US5643485A

    公开(公告)日:1997-07-01

    申请号:US343081

    申请日:1994-11-21

    摘要: A cooking utensil with improved heat retention includes an inner pot received within an outer pot and separated in a closely spaced-apart relationship to form a volume or chamber therebetween. The chamber is evacuated and sealed with foil leaves at the upper edges of the inner and outer pot. The vacuum created between the inner and outer pot, along with the minimum of thermal contact between the inner and outer pot, and the reduced radiative heat transfer due to low emissivity coatings on the inner and outer pot, provide for a highly insulated cooking utensil. Any combination of a plurality of mechanisms for selectively disabling and re-enabling the insulating properties of the pot are provided within the chamber. These mechanisms may include: a hydrogen gas producing and reabsorbing device such as a metal hydride, a plurality of metal contacts which can be adjusted to bridge the gap between the inner and outer pot, and a plurality of bimetallic switches which can selectively bridge the gap between the inner and outer pot. In addition, phase change materials with superior heat retention characteristics may be provided within the cooking utensil. Further, automatic and programmable control of the cooking utensil can be provided through a microprocessor and associated hardware for controlling the vacuum disable/enable mechanisms to automatically cook and save food.

    摘要翻译: 具有改进的保温性的烹饪器具包括容纳在外锅内并以彼此间隔开的关系分开的内锅,以在它们之间形成体积或室。 室内抽真空并在内锅和外锅的上边缘用箔叶密封。 在内罐和外锅之间产生的真空以及内罐和外罐之间的最小热接触以及由于内罐和外罐上的低发射率涂层而减少的辐射热传递提供了高度绝缘的烹饪器具。 在室内提供用于选择性地禁用和重新启用罐的绝缘性质的多个机构的任何组合。 这些机构可以包括:氢气生成和再吸收装置,例如金属氢化物,可以调节以跨越内锅和外罐之间的间隙的多个金属触点,以及多个双金属开关,其可以选择性地桥接间隙 内锅和外锅之间。 此外,可以在炊具内提供具有优异保温特性的相变材料。 此外,可以通过微处理器和相关联的硬件来提供烹饪器具的自动和可编程控制,以控制真空禁用/启用机构以自动烹饪和保存食物。

    Fuel cell system warm-up strategy with reduced efficiency losses
    9.
    发明授权
    Fuel cell system warm-up strategy with reduced efficiency losses 有权
    燃料电池系统预热策略,降低效率损失

    公开(公告)号:US08007946B2

    公开(公告)日:2011-08-30

    申请号:US11860118

    申请日:2007-09-24

    IPC分类号: H01M8/04

    摘要: A method for quickly and efficiently heating a fuel cell stack at system start-up. The method uses and prioritizes various stack heat sources based on their efficiency to heat the stack. A thermal set-point for heating the stack to the desired temperature is determined based on the ambient temperature and, the stack cooling fluid temperature. The set-point is then compared-to the stack heating provided by the heat sources that are operating through normal system start-up operation. If more heat is necessary to reach the set-point, the method may first charge a system battery using stack power where the load causes the fuel cell stack to heat up. If additional heating is still required, the method may then turn on a cooling fluid heater, then flow a small amount of hydrogen into the cathode inlet stream to provide combustion, and then increase the compressor load as needed.

    摘要翻译: 一种在系统启动时快速有效地加热燃料电池堆的方法。 该方法基于它们的效率来使用并优先考虑各种堆叠热源以加热堆叠。 基于环境温度和叠层冷却流体温度来确定用于将叠层加热到所需温度的热定形点。 然后将设定点与通过正常系统启动操作操作的热源提供的堆叠加热进行比较。 如果需要更多的热量来达到设定点,则该方法可以首先使用负载使燃料电池堆加热的堆叠功率对系统电池充电。 如果仍然需要额外的加热,则该方法然后可以打开冷却流体加热器,然后将少量氢气流入阴极入口流以提供燃烧,然后根据需要增加压缩机负载。