公开(公告)号：US06306530B1

公开(公告)日：2001-10-23

申请号：US09141086

申请日：1998-08-27

申请人： Melanie A Blondin ,  Robin J. Guthrie ,  Richard D. Sawyer ,  Deliang Yang ,  Robert R. Fredley

发明人： Melanie A Blondin ,  Robin J. Guthrie ,  Richard D. Sawyer ,  Deliang Yang ,  Robert R. Fredley

IPC分类号： H01M804

CPC分类号： H01M8/04074 ,  H01M8/04029 ,  H01M8/04119 ,  H01M8/04291

摘要： A PEM flow field system of coolant medium for preventing the formation and accumulation of gas bubbles, having a critical viscous pressure drop therein is provided. The water transport plate includes a coolant flow field channel therein having an input port and an exit port. The coolant flow field channel includes at least one upward flow channel portion, at least one downward flow channel portion. Coolant medium is fluidly routed through the coolant flow field channel of the water transport plate at a flow rate which results in a viscous pressure drop that is greater than the buoyancy of a gas bubble trapped within the coolant flow field channel to prevent the accumulation thereof within the coolant flow field channel.

摘要翻译： 提供了一种用于防止在其中具有临界粘性压降的气泡的形成和积聚的冷却剂介质的PEM流场系统。 水输送板包括其中具有输入端口和出口的冷却剂流场通道。 冷却剂流动通道包括至少一个向上流动通道部分，至少一个向下流动通道部分。 冷却剂介质以流速流体地流过水输送板的冷却剂流场通道，该流速导致粘滞的压降大于在冷却剂流场通道内捕获的气泡的浮力，以防止其内积聚 冷却液流场通道。