| US 7,344,790 B2 | ||
| Humidified fuel cell system and process for warming the same | ||
| Yoshio Kusano, Saitama (Japan); Toshikatsu Katagiri, Saitama (Japan); Motohiro Suzuki, Saitama (Japan); and Kenji Nagumo, Saitama (Japan) | ||
| Assigned to Honda Motor Co., Ltd., Tokyo (Japan) | ||
| Filed on Nov. 14, 2003, as Appl. No. 10/714,464. | ||
| Claims priority of application No. 2002-331205 (JP), filed on Nov. 14, 2002. | ||
| Prior Publication US 2004/0142218 A1, Jul. 22, 2004 | ||
| Int. Cl. H01M 8/04 (2006.01) | ||
| U.S. Cl. 429—26 [429/34] | 5 Claims |
| 1. A fuel cell system comprising:
an anode side humidifier for humidifying a fuel gas and a cathode side humidifier for humidifying a reactant gas, wherein
each humidifier includes plurality of hollow fiber membrane modules for migrating moisture between a supply gas, which is
supplied to a fuel cell, and an exhaust gas, which is exhausted from the fuel cell to thereby humidify the supply gas:
a pair of heads which hold both ends of said hollow fiber membrane modules,
a connecting member which connects each of the heads, and
a device for warming the supply gas composed of conduits through which a cooling medium exhausted from the fuel cell is passed,
said device including a first conduit disposed along said connecting member, a second conduit disposed around an outer circumference
of one of said pair of heads, and a third conduit disposed around an outer circumference of the other of said pair of heads;
wherein said device for warming the supply gas is configured to first warm a humidifier at an outlet side of the supply gas,
and subsequently warm a humidifier at an inlet side of the supply gas.
|