Chemistry: electrical current producing apparatus – product – and – Having magnetic field feature
Patent
1989-06-12
1990-10-16
Walton, Donald L.
Chemistry: electrical current producing apparatus, product, and
Having magnetic field feature
429 22, H01M 818
Patent
active
049634437
ABSTRACT:
A fuel cell system in which fuel gas is supplied from a fuel gas reformer to a fuel electrode, while oxidizing gas is supplied from the air blower to a oxidizer electrode. The fuel cell system generates electricity by the reaction gas's electrochemical reaction through the electrolyte. The fuel cell system has a fuel gas circulating pipe that connects the piping for the offgas coming from the fuel electrode to the fuel gas inlet pipe of the fuel electrode through the blower and valve. It has a discharge resistance that is connected to the electric output terminal of the fuel cell. When the operation of the fuel cell is stopped, the valve at the side of offgas coming from the fuel is closed, and the valve of the fuel gas circulation pipe is opened. The fuel gas remaining in the fuel cell system circulates through this pipe. The electric power that has generated at that time is discharged through the discharge resistance. After the hydrogen in the fuel gas has been fully consumed, non-inflammable gas made up of non-reactive compounds is filled into the fuel cell.
REFERENCES:
patent: 4555452 (1985-11-01), Kahara et al.
patent: 4657826 (1987-04-01), Tajima
patent: 4657828 (1987-04-01), Tajima
Fuji Electric & Co., Ltd.
Walton Donald L.
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