Hydrogen supply system for fuel cell arrangement has hydrogen recirculating pump driven by energy of pressure of hydrogen extracted from tank or coming from reforming unit

摘要

The system extracts hydrogen from a reservoir tank (35) under pressure or a reforming device and feeds it to the fuel cell arrangement (11) after expanding it to a lower pressure. Some unused hydrogen passes back to the tank via a return line (13C). A pump (10) recirculates the hydrogen and is driven by the energy of the pressure of the hydrogen extracted from the tank or coming from the reforming unit.