| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system having a high jet pump recycle property without increasing the amount of a supply hydrogen flow. <P>SOLUTION: A humidification system 5 exchanges the moisture of an anode offgas being a humid gas supplied from a recycle path 7 with a dry hydrogen gas supplied from a regulation valve 3 to moisturize the dry hydrogen gas. The moisturized hydrogen gas increased in its weight for its density is increased is supplied as the driving flow of the jet pump 6. The anode offgas whose steam content is decreased in the humidification system 5 is supplied to the inlet hole of the jet pump 6 by the recycle pump 8. The jet pump 6 draws in the anode offgas flow to be drawn having density decreased for the reduction of the steam component by using the moisturized heavy driving flow to supply the mixed flow thereof to the anode 1a of the fuel cell 1. <P>COPYRIGHT: (C)2007,JPO&INPIT |
