Fuel cells evaporative reactant gas cooling and operational freeze prevention
    3.
    发明申请
    Fuel cells evaporative reactant gas cooling and operational freeze prevention 有权
    燃料电池蒸发反应物气体冷却和操作防冻

    公开(公告)号:US20060141331A1

    公开(公告)日:2006-06-29

    申请号:US11230066

    申请日:2005-09-19

    IPC分类号: H01M8/02 H01M8/04

    摘要: Fuel cells (38) have water passageways (67; 78, 85; 78a, 85a) that provide water through reactant gas flow field plates (74, 81) to cool the fuel cell. The water passageways may be vented to atmosphere (99), by a porous plug (69), or pumped (89, 146) with or without removing any water from the passageways. A condenser (59, 124) receives reactant air exhaust, may have a contiguous reservoir (64, 128), may be vertical, (a vehicle radiator, FIG. 2), may be horizontal, contiguous with the top of the fuel cell stack (37, FIG. 5), or below (124) the fuel cell stack (120). The passageways may be grooves (76, 77; 83, 84) or may comprise a plane of porous hydrophilic material (78a, 85a) contiguous with substantially the entire surface of one or both of the reactant gas flow field plates. Air flow in the condenser may be controlled by shutters (155). The condenser may be a heat exchanger (59a) having freeze-proof liquid flowing through a coil (161) thereof, the amount being controlled by a valve (166). A deionizer (175) may be used.

    摘要翻译: 燃料电池(38)具有通过反应气体流场板(74,81)提供水以冷却燃料电池的水通道(67; 78,85; 78a,85a)。 水通道可以通过多孔塞(69)排放到大气(99),或者通过或不从通道中去除任何水而被泵送(89,146)。 冷凝器(59,124)接收反应物排气,可以具有连续的储存器(64,128),其可以是垂直的(图2的车辆散热器)可以是水平的,与燃料电池堆的顶部邻接 (37,图5)或下面(124)燃料电池堆(120)。 通道可以是凹槽(76,77; 83,84),或者可以包括与一个或两个反应气体流场板的基本上整个表面相邻的多孔亲水材料(78a,85a)的平面。 冷凝器中的气流可由百叶窗(155)控制。 冷凝器可以是具有流过其线圈(161)的防冻液体的热交换器(59a),该量由阀(166)控制。 可以使用去离子器(175)。

    Non-circulating coolant PEM fuel cell power plant assembly with low thermal mass
    4.
    发明申请
    Non-circulating coolant PEM fuel cell power plant assembly with low thermal mass 有权
    非循环冷却剂PEM燃料电池发电厂组件具有低热质量

    公开(公告)号:US20070072031A1

    公开(公告)日:2007-03-29

    申请号:US11604411

    申请日:2006-11-28

    IPC分类号: H01M8/04 H01M8/02 H01M8/10

    摘要: A PEM fuel cell power plant includes fuel cells, each of which has a cathode reactant flow field plate which is substantially impermeable to fluids, a water coolant source, and a fluid permeable anode reactant flow field plate adjacent to said water coolant source. The anode reactant flow field plates pass water from the coolant sources into the cells where the water is evaporated to cool the cells. The cathode flow field plates prevent reactant crossover between adjacent cells. By providing a single water permeable plate for each cell in the power plant the amount of water present in the power plant at shut down is limited to a degree which does not require adjunct water purging components to remove water from the plates when the power plant is shut down during freezing ambient conditions. Thus the amount of residual ice in the power plant that forms in the plates during shut down in such freezing conditions will be limited. The power plant can thus be restarted and brought up to full operating power levels quickly due to the reduced amount of ice that must be melted during startup. The power plant is thus well suited for use in powering vehicles.

    摘要翻译: PEM燃料电池发电厂包括燃料电池,每个燃料电池具有阴极反应物流场板,其基本上不渗透流体,水冷却剂源和与所述水冷却剂源相邻的流体可渗透阳极反应物流场板。 阳极反应物流场板将水从冷却剂源流入细胞,在那里水被蒸发以冷却细胞。 阴极流场板防止相邻电池之间的反应物交叉。 通过为发电厂中的每个电池提供单一的水可渗透板,关闭时发电厂中存在的水量限制在不需要辅助清水部件以在发电厂为 在冷冻环境条件期间关闭。 因此,在这种冷冻条件下在关闭期间在板中形成的发电厂中的剩余冰量将受到限制。 因此,由于在启动期间必须熔化的冰量减少,因此发电厂可以重新启动并迅速达到完全的工作功率水平。 因此,发电厂非常适合用于为车辆供电。

    Fuel cells evaporatively cooled with water carried in passageways
    5.
    发明申请
    Fuel cells evaporatively cooled with water carried in passageways 有权
    燃料电池用通道中的水蒸发冷却

    公开(公告)号:US20060141330A1

    公开(公告)日:2006-06-29

    申请号:US11027332

    申请日:2004-12-29

    IPC分类号: H01M8/02 H01M8/04

    摘要: Fuel cells (38) have minute water passageways (67) that provide water through one or both reactant gas flow field plates (74, 82) of each fuel cell, whereby the fuel cell is cooled convectively. The water passageways (67; 78, 85; 78a, 85a) may be vented by a porous plug (69), or by a microvacuum pump (89) that does not pump any water from the passageways, or simply vented (99) to atmosphere. A condenser (59) may have a contiguous reservoir (64); the condenser (59) may be vertical, such as a vehicle radiator (FIG. 1), or may be horizontal, contiguous with the top of the fuel cell stack (37, FIG. 5). The passageways may be grooves (76, 77; 83, 84) in the reactant gas flow plates (75, 81) or the passageways may comprise a plane of porous hydrophilic material (78a, 85a) contiguous with substantially the entire surface of one or both of the reactant gas flow field plates.

    摘要翻译: 燃料电池(38)具有通过每个燃料电池的一个或两个反应气体流场板(74,82)提供水的微小的水通道(67),由此燃料电池被对流地冷却。 水通道(67; 78,85; 78a,85a)可以由多孔塞(69)或不通过通道的任何水抽吸的微型真空泵(89)排放,或者简单地排放(99 )到大气。 冷凝器(59)可以具有连续的储存器(64); 冷凝器(59)可以是垂直的,例如车辆散热器(图1),或者可以是水平的,与燃料电池堆的顶部(图5中的37)相邻。 通道可以是反应气体流动板(75,81)中的凹槽(76,77; 83,84),或者通道可以包括多孔亲水材料(78a,85a)的平面,该平面与基本上整个表面的 一个或两个反应气体流场板。

    Easily isolated, oversize fuel cell stack cooler plates
    6.
    发明申请
    Easily isolated, oversize fuel cell stack cooler plates 有权
    容易隔离,超大型燃料电池堆冷却器板

    公开(公告)号:US20050089736A1

    公开(公告)日:2005-04-28

    申请号:US10691793

    申请日:2003-10-23

    摘要: A plurality of cooler plates (9) are disposed between fuel cells (8) in a stack (7) and have protrusions (12, 13) which include coolant inlet and outlet channels (15). The protrusions are surrounded by an elastomeric sealant material (35, 36) which forms a seal with the manifold structures (27, 28) to form coolant inlet and outlet manifolds (17, 20). The sealant material prevents coolant from entering fuel cells along the edges thereof, thereby preventing the fuel cells from being poisoned by the coolant. The coolant inlet and outlet manifold structures (27, 28) also define reactant gas manifolds (18, 21).

    摘要翻译: 多个冷却器板(9)设置在堆叠(7)中的燃料电池(8)之间并且具有包括冷却剂入口和出口通道(15)的突出部(12,13)。 突起被弹性密封剂材料(35,36)包围,所述弹性密封剂材料与歧管结构(27,28)形成密封,以形成冷却剂入口和出口歧管(17,20)。 密封剂材料防止冷却剂沿其边缘进入燃料电池,从而防止燃料电池被冷却剂中毒。 冷却剂入口和出口歧管结构(27,28)还限定反应气体歧管(18,21)。

    PEM fuel cell stack assembly with isolated internal coolant manifold
    7.
    发明申请
    PEM fuel cell stack assembly with isolated internal coolant manifold 有权
    PEM燃料电池堆组件与隔离的内部冷却剂歧管

    公开(公告)号:US20050089737A1

    公开(公告)日:2005-04-28

    申请号:US10694694

    申请日:2003-10-27

    摘要: A PEM fuel cell assembly includes cooler plates (10) with internal coolant manifolds (25) isolated from the cell stack assembly by an isolation gap (28) to minimize the risk of contamination of the cells by antifreeze. The internal coolant manifolds are formed by seal assemblies (24), each disposed between inlet or outlet openings (14, 15) in projections (16) of each cooler plate extending outwardly from the fuel cell planform (20) to provide a gap (28), which may be used as an air turn manifold. Flanges (40) with through holes (41) may receive tie rods to assist assembly of a fuel cell stack with the cooler plate.

    摘要翻译: PEM燃料电池组件包括具有通过隔离间隙(28)与电池堆组件隔离的内部冷却剂歧管(25)的冷却器板(10),以最小化通过防冻剂污染细胞的风险。 内部冷却剂歧管由密封组件(24)形成,每个密封组件设置在从燃料电池平面(20)向外延伸的每个冷却器板的突出部(16)中的入口或出口(14,15)之间,以提供间隙 ),其可以用作空气转向歧管。 具有通孔(41)的法兰(40)可以接收拉杆以辅助燃料电池堆与冷却器板的组装。

    Permeable inlet fuel gas distributor for fuel cells
    8.
    发明申请
    Permeable inlet fuel gas distributor for fuel cells 有权
    用于燃料电池的可渗透入口燃料气体分配器

    公开(公告)号:US20050129999A1

    公开(公告)日:2005-06-16

    申请号:US10736945

    申请日:2003-12-15

    摘要: An inlet fuel distributor (10-10d) has a permeable baffle (39, 54, 54a, 60) between a fuel supply pipe (11, 83) and a fuel inlet manifold (12, 53, 53a, 63) causing fuel to be uniformly distributed along the length of the fuel inlet manifold. A surface (53, 68) may cause impinging fuel to turn and flow substantially omnidirectionally improving its uniformity. Recycle fuel may be provided (25, 71) into the flow downstream of the fuel inlet distributor. During startup, fuel or inert gas within the inlet fuel distributor and the fuel inlet manifold may be vented through a valve (57, 86) in response to a controller (58, 79) so as to present a uniform fuel front to the inlets of the fuel flow fields (58).

    摘要翻译: 入口燃料分配器(10-10d)在燃料供应管(11,83)和燃料入口歧管(12,53,53a,63)之间具有可渗透的挡板(39,54,54a,60),导致 燃料沿燃料入口歧管的长度均匀分布。 表面(53,68)可以使撞击的燃料转动并基本上全向流动地改善其均匀性。 可以向燃料入口分配器下游的流中提供循环燃料(25,71)。 在启动期间,入口燃料分配器和燃料入口歧管内的燃料或惰性气体可以响应于控制器(58,79)而通过阀门(57,86)排出,以便将均匀的燃料前端呈现在 燃料流场(58)。