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Seal structure of a fuel cell

United States Patent

October 27, 2009
View the Complete Patent at the US Patent & Trademark Office
A seal structure of a fuel cell includes an interrupted back-up disposed at least one of a connecting gas passage and a connecting coolant passage. The back-up located on one side of a separator and a portion of a seal line located on the other side of the separator are disposed such that the back-up and the portion of the seal line are overlapped with each other in a fuel cell stacking direction. The interrupted back-up may be formed in the seal or in the separator.
Hayashi; Tomokazu (Aichi, JP), Wada; Mikio (Aichi, JP), Myojin; Iwao (Aichi, JP)
Toyota Jidosha Kabushiki Kaisha (Toyota-shi, JP)
10/ 574,565
September 28, 2004