Skutterudite thermoelectric material thermoelectric couple and method of producing the same
    71.
    发明授权
    Skutterudite thermoelectric material thermoelectric couple and method of producing the same 有权
    方钴矿热电材料热电偶及其制造方法

    公开(公告)号:US06207886B1

    公开(公告)日:2001-03-27

    申请号:US09343680

    申请日:1999-06-30

    IPC分类号: H01L3534

    CPC分类号: H01L35/18

    摘要: The present invention relates to a skutterudite thermoelectric material for directly converting heat generated by the Seebeck effect into electricity, and provides a method of producing a Co—Sb-based filled-skutterudite sintered material having a lower thermal conductivity and thereby having a higher figure of merit. The crystal grains of a Sb-containing skutterudite compound and a metal oxide dispersed in the crystal grain boundaries are sintered to obtain the skutterudite thermoelectric sintered material. The metal oxide prevents growth of grains in the process of sintering, whereby the skutterudite compound is finely pulverized to have an average crystal grain size of 20 &mgr;m or less. As a result, the areas at the boundaries of the fine crystal grains are increased, phonon scattering is enhanced, the thermal conductivity is decreased, and the figure of merit is increased. The metal oxide is an oxide of a rare earth metal. The skutterudite compound includes a filled-skutterudite compound having a composition of LnyFexCo4−xSb12 (Ln: a rare earth metal, 0

    摘要翻译: 本发明涉及一种用于将由塞贝克效应产生的热直接转化为电的方钴矿热电材料,并提供一种生产具有较低热传导率的Co-Sb基填充方钴矿烧结材料的方法, 值得。 将Sb含有方钴矿化合物和分散在晶界的金属氧化物的晶粒烧结,得到方钴矿热电烧结材料。 金属氧化物防止烧结过程中的晶粒生长,由此将方钴矿化合物细粉碎至平均晶粒尺寸为20μm以下。 结果,细晶粒边界的面积增加,声子散射增强,导热性下降,品质因数提高。 金属氧化物是稀土金属的氧化物。 方钴矿化合物包括具有LnyFexCo4-xSb12(Ln:稀土金属,0

    Piezoelectric pressure sensor having tubular charge detecting unit and
method of assembling same
    72.
    发明授权
    Piezoelectric pressure sensor having tubular charge detecting unit and method of assembling same 失效
    具有管状电荷检测单元的压电式压力传感器及其组装方法

    公开(公告)号:US5377547A

    公开(公告)日:1995-01-03

    申请号:US118678

    申请日:1993-09-10

    CPC分类号: G01L23/10 G01L9/008 Y10T29/42

    摘要: A piezoelectric pressure sensor includes a generally elongated sensor housing, a pressure receiving plate disposed at a first end of the sensor housing with a first surface thereof serving as a pressure receiving surface for receiving a pressure applied from outside of the sensor housing, a pressure transmission member accommodated in the sensor housing with a first end thereof held in contact with a second surface of the pressure receiving plate, and a tubular piezoelectric element accommodated in the sensor housing with a first end thereof held in contact with a second end of the pressure transmission member. A pair of electrodes are formed on the external and internal surfaces of the piezoelectric element, respectively. An external charge detection member is held in contact with the external electrode for collecting charge generated by the external electrode and is encircled by a heat-shrinkable tube, while an internal charge detection member is held in contact with the internal electrode for extracting charge therefrom. A fixing screw is threaded into the sensor housing for holding in a prestressed fashion the piezoelectric element and the pressure transmission member against the pressure receiving plate. During assemblage of the pressure sensor, the heat-shrinkable tube undergoes a thermal shrinkage upon application of heat thereto, thereby compressing the external charge detection member radially inwardly against the external electrode.

    摘要翻译: 压电压力传感器包括大致细长的传感器壳体,压力接收板,设置在传感器壳体的第一端,其第一表面用作用于承受从传感器外壳外部施加的压力的受压表面,压力传递 容纳在所述传感器壳体中的构件,其第一端保持与所述受压板的第二表面接触;以及管状压电元件,容纳在所述传感器壳体中,其第一端保持与所述压力传递的第二端接触 会员。 一对电极分别形成在压电元件的外表面和内表面上。 外部电荷检测部件与外部电极保持接触,用于收集由外部电极产生的电荷,并且由热收缩管环绕,同时内部电荷检测部件与内部电极保持接触,用于从其中提取电荷。 固定螺钉被拧入传感器外壳中,以预应力的方式将压电元件和压力传递元件保持抵靠压力接收板。 在压力传感器的组装期间,热收缩管在施加热量时经受热收缩,从而将外部电荷检测部件径向向内压靠在外部电极上。

    FUEL CELL SEPARATOR AND FUEL CELL INCLUDING SAME
    73.
    发明申请
    FUEL CELL SEPARATOR AND FUEL CELL INCLUDING SAME 审中-公开
    燃料电池分离器和燃料电池,包括它们

    公开(公告)号:US20120231373A1

    公开(公告)日:2012-09-13

    申请号:US13508926

    申请日:2010-11-15

    IPC分类号: H01M8/04 H01M8/10

    摘要: A fuel cell separator of the present invention is provided with a reactant gas flow region (8) including a plurality of straight portions (11) and one or more turn portions (12). At least one of one or more turn portions (12) includes a gas mixing portion (12b), a gas meeting portion (12a), and a gas separating portion (12c). Second rib portions (14) are formed in the gas meeting portion (12a) and the gas separating portion (12c). The second rib portions (14) are formed such that the length of an inner second rib portion (14) is shorter than the length of an outer second rib portion (14) in a direction in which the second rib portions (14) extend. An outermost second rib portion (141) located farthest from a center rib portion (13A) is formed so as to be bent inward toward the center line (131).

    摘要翻译: 本发明的燃料电池隔板具有包括多个直线部分(11)和一个或多个匝部分(12)的反应气体流动区域(8)。 一个或多个匝部分(12)中的至少一个包括气体混合部分(12b),气体会聚部分(12a)和气体分离部分(12c)。 第二肋部(14)形成在气体会聚部(12a)和气体分离部(12c)中。 第二肋部(14)形成为使得第二肋部(14)的长度比第二肋部(14)延伸的方向短于外侧第二肋部(14)的长度。 位于离中心肋部(13A)最远的最外侧的第二肋部(141)形成为朝向中心线(131)向内侧弯曲。

    FUEL CELL STACK, FUEL CELL SYSTEM AND METHOD OF OPERATING FUEL CELL SYSTEM
    80.
    发明申请
    FUEL CELL STACK, FUEL CELL SYSTEM AND METHOD OF OPERATING FUEL CELL SYSTEM 审中-公开
    燃料电池堆,燃料电池系统和操作燃料电池系统的方法

    公开(公告)号:US20090181269A1

    公开(公告)日:2009-07-16

    申请号:US12299875

    申请日:2007-05-01

    IPC分类号: H01M8/04 H01M2/02

    摘要: A fuel cell stack of the present invention includes intermediate current collectors (52, 53) which are disposed in an intermediate portion between a pair of end portion current collectors (50, 51) and are configured to divide anode gas supply manifolds (192I, 392I) and cathode gas supply manifolds (193I, 393I), two or more sub-stacks (P, Q, R) each configured to include one or more unit cells (110, 210, 310) which are stacked between two collectors which are included in a pair of end portion current collectors (50, 51) and the intermediate current collectors (52, 53), anode gas supply inlets (172I, 272I) which are connected to anode gas supply manifolds (192I, 392I) in one of sub-stacks (P, Q, R), and cathode gas supply inlets (173I, 273I) which are connected to cathode gas supply manifolds (193I, 393I) in one of sub-stacks (P, Q, R).

    摘要翻译: 本发明的燃料电池堆包括设置在一对端部集电器(50,51)之间的中间部分的中间集电器(52,53),并被构造成将阳极气体供应歧管(192I,392I )和阴极气体供应歧管(193I,393I),两个或更多个子堆叠(P,Q,R),每个子堆叠(P,Q,R)被配置为包括堆叠在两个收集器之间的一个或多个单元电池(110,210,310) 在一对端部集电器(50,51)和中间集电器(52,53)中,阳极气体供应入口(172I,272I)与子阳极气体供应歧管(192I,392I)中的一个连接 (P,Q,R)和与子阴极气体供给歧管(193I,393I)中的一个子堆(P,Q,R)连接的阴极气体供给入口(173I,273I)。