| 摘要 |
A hydrogen feed system for a fuel cell arrangement in which the hydrogen can be taken at a higher pressure from a supply tank standing under pressure or under pressure from a reforming device and can be fed after relaxation to a lower pressure into the fuel cell arrangement, with a return flow loop being provided in the hydrogen circuit, so that a part of the non-consumed hydrogen emerging from the fuel cell arrangement can be fed back into the latter, is characterized in that a pump is provided which brings about the recirculation of the hydrogen and which can be driven from the pressure energy of the hydrogen taken from the tank or coming from a reforming unit.
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