| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a fuel cell in which there is no stay of water droplets in the gas passage made of a plurality of zigzag flow grooves equipped to the separator and a stable operation can be obtained even in the partial load condition. <P>SOLUTION: In the gas passage made of a plurality of zigzag flow grooves of the identical width which introduces oxidant gas from an oxidant entrance manifold 2 to an oxidant exit manifold 3 provided at the separator 1, the depth of the grooves in the sections e-f, g-h, i-j, and k-l containing the bending portions where the flow direction of the zigzag flow grooves is reversed is made shallow and the cross section of the passage is reduced, thereby, the velocity of flow of the oxidant in these sections is increased, thereby discharging the water droplets. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
