| 摘要 |
The invention is directed to a piping structure of a fuel cell stack that discharges gas from a coolant fluid outlet pipe before the gas accumulates in a coolant fluid passage within the fuel cell stack. In addition, the piping structure drains fluid from a fuel gas outlet pipe and an oxidant gas outlet pipe before the fluid accumulates in a fuel gas passage and an oxidant gas passage, respectively, within the fuel cell stack. In this way, the piping structure described herein improves cooling performance of the coolant fluid as well as power generation performance and life of the fuel cell stack.
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