Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Process or means for producing – recycling – or treating...
Reexamination Certificate
2011-05-10
2011-05-10
Hodge, Robert (Department: 1729)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Process or means for producing, recycling, or treating...
C429S414000, C429S433000, C429S434000
Reexamination Certificate
active
07939209
ABSTRACT:
A method for controlling the exhaust gas temperature of a fuel cell system, the fuel cell system including a fuel cell having an anode and a cathode, and further including a fuel supply line for supplying H2-containing fuel to the anode, and an oxidant supply line for supplying O2-containing gas to the cathode, and at least one discharge line for discharging anode gas and/or cathode gas from the fuel cell. The discharge line is connected by at least one humidifier with the fuel supply line and/or with the oxidant supply line in such a manner that the fuel and/or the oxidant is/are humidified with moisture from the exhaust gas. The exhaust gas temperature is controlled by changing the temperature of the fuel in the fuel supply line and/or that of the oxidant in the oxidant supply line, and by transferring heat in the humidifier from the fuel and/or the oxidant to the exhaust gas.
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Daimler AG
Davidson Davidson & Kappel LLC
Hodge Robert
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