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US 10,763,529 B2Granted
Pressure balancing of anode and cathode in a fuel cell system
AssigneeFuelCell Energy, Inc.
InventorsHossein Ghezel-Ayagh, James B. Walzak
Life of this patent
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Abstract
A fuel cell system includes a fuel cell having an anode configured to receive anode feed gas and output anode exhaust, and a cathode configured to receive cathode feed gas and output cathode exhaust. The system further includes a pressurizing assembly downstream from the anode and an oxidizer downstream from the anode. The cathode feed gas is the anode exhaust that has been compressed in the pressurizing assembly and reacted with air in the oxidizer.
Claims20
A fuel cell system, comprising:
- a fuel cell, comprising:
- an anode configured to receive anode feed gas and output anode exhaust;
- and
- a cathode configured to receive cathode feed gas and output cathode exhaust;
- a pressurizing assembly downstream from the anode;
- and
- an oxidizer downstream from the anode;
- wherein the cathode feed gas is the anode exhaust that has been compressed in the pressurizing assembly and reacted with air in the oxidizer.
5 more elements
A fuel cell system, comprising:
- a fuel cell, comprising:
- an anode configured to receive anode feed gas and output anode exhaust;
- and
- a cathode configured to receive cathode feed gas and output cathode exhaust;
- a blower configured to receive the anode exhaust from the anode and to compress or accelerate the anode exhaust;
- and
- an oxidizer configured to receive the anode exhaust from the blower, react the anode exhaust with air, and output the cathode feed gas to the cathode.
4 more elements
A method of balancing pressure between an anode and a cathode in a fuel cell, comprising:
- providing a fuel cell having an anode outputting anode exhaust, and a cathode outputting cathode exhaust;
- oxidizing the anode exhaust in the oxidizer to form a cathode feed gas;
- increasing pressure of the anode exhaust or the cathode feed gas in a pressurizing assembly downstream from the anode;
- and
- feeding the cathode feed gas to the cathode.
2 more elements
Dependencies are inferred from the claim text.