Title:
FUEL CELL
Document Type and Number:
Japanese Patent JP3426701
Kind Code:
B2
Abstract:
PURPOSE: To prevent a drop in cooling effect, maintain uniform temperature distribution within a cell plane, prevent or otherwise the deterioration of a cell voltage characteristic by keeping as much uniformity as possible for the flowrate of cooling water flowing in a cooling tube at the upper and lower sides of a cell stack structure.
CONSTITUTION: A cylindrical branch pipe 30 for applying resistance to cooling water and restraining a flow thereof is inserted in a7 drainage manifold 15, and fixed to the inner wall thereof via a bolt 3a or the like. According to this construction, a pressure loss becomes larger at a lower position in the feedwater side manifold, due to flow resistance with the branch pipe 30 in the drainage manifold 15. As a result, the pressure loss offsets an effect due to weight acting to cause a flow of as much cooling water as possible at a lower position. Thus, the flowrate of the cooling water entering a cooling pipe is kept uniform at the upper and lower sides of a cell stack structure.
Inventors:
Yoshihiro Moriyama
Kazuhisa Tanaka
Kinno Toshiro
Kazuhisa Tanaka
Kinno Toshiro
Application Number:
JP11803294A
Publication Date:
July 14, 2003
Filing Date:
May 31, 1994
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H01M8/24; (IPC1-7): H01M8/24
Domestic Patent References:
| JP62145659A | ||||
| JP61147467A | ||||
| JP1217862A | ||||
| JP1298653A | ||||
| JP1281682A |
Attorney, Agent or Firm:
Kazuo Sato (2 outside)
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