Hydrogen/oxygen fuel cell
AssigneeSiemens Aktiengesellschaft
InventorBotho Stuwe
Life of this patent
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Abstract
The present invention relates to hydrogen/oxygen fuel cells having oxygen and hydrogen feed lines for the flow of hydrogen and oxygen gases into the fuel cell, each of which is provided with a diaphragm valve for regulating the flow of gases therethrough, and each having control lines for controlling each diaphragm, the fuel cell also having the oxygen control line connected to the hydrogen feed line, and having an oxygen control valve positioned in the oxygen control line, to regulate the flow of hydrogen gas therethrough.
Claims3
In an improved hydrogen/oxygen fuel cell of the type having a hydrogen gas feed line connected to said cell for the flow of hydrogen gas into said cell, and having an oxygen gas feed line connected to said cell for the flow of oxygen gas into said cell, said hydrogen gas feed line including a hydrogen diaphragm valve positioned therein which controls the flow of hydrogen gas into said cell, with a hydrogen control line for controlling said hydrogen diaphragm valve and a hydrogen control valve for opening and closing said hydrogen control line, and in which said oxygen feed line includes an oxygen diaphragm valve positioned therein which controls the flow of oxygen gas into said cell, with an oxygen control line for controlling said oxygen diaphragm valve, said improvement comprises:
- a connection of said oxygen control line to said hydrogen feed line at a point upstream of said hydrogen diaphragm valve, and a downstream of the connection of said hydrogen feed line to said cell, which provides fluid communication between said oxygen control line and said hydrogen feed line;
- oxygen control valve positioned in said oxygen control line for opening and closing said oxygen control line;
- wherein the opening pressure of said oxygen diaphragm valve is higher than the opening pressure of said hydrogen diaphragm valve.
Dependencies are inferred from the claim text.