Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Patent
1986-03-18
1987-02-03
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
429 26, H01M 804
Patent
active
046408738
ABSTRACT:
A temperature control system for a fuel cell powerplant comprising two or more fuel cell stacks to which cooling gas and process gases are separately supplied, that comprises temperature detectors each being arranged in a fuel cell stack; stack dampers each being arranged in each of inlet or outlet branched pipelines of a circulating pipeline for cooling gas; means for calculating the average value of operating temperatures of all the cell stacks detected by said temperature detectors, a difference between the average value and each detected temperature of the cell stacks, and a difference between the average value and a predetermined value of the operating temperature of the fuel cell stacks; a driver for actuating each stack damper in response to the difference between the average value and the detected temperature of each cell stack, and means for controlling the flow rate and/or the temperature of the cooling gas fed to all the cell stacks in response to the difference between the average value and the predetermined value of the operating temperature.
REFERENCES:
patent: 3595699 (1971-07-01), Baude
patent: 4310604 (1982-01-01), Marchetti
patent: 4393123 (1983-07-01), Lambrech
Hagino Hideo
Nishizawa Nobuyoshi
Tajima Osamu
Yamada Makoto
Sanyo Electric Co,. Ltd.
Skapars Anthony
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