Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Patent
1992-05-26
1994-05-31
Kalafut, Stephen
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
429 26, H01M 804
Patent
active
053168704
ABSTRACT:
A heat supply and electric power-generating fuel cell, has a water-circulation system including a fuel cell body with a water flow path for controlling the temperature of a cell reaction to a proper temperature. A water vapor separator cools water passed through the water flow path of the fuel cell. A recovery heat exchanger supplies heat to users which corresponds to the difference between the temperature of the water cooled by the separator and the proper temperature of the cell reaction when the temperature of the water is greater than the proper temperature. A control heat exchanger, on a water path connecting the separator with the recovery heat exchanger, includes a heat exchange portion having a path for a heat transfer medium, and cooling structure for cooling the water with air. A circulating pump circulates water around a water-circulation circuit. An external controller controls the quantity of heat from the heating/cooling structure to adjust the temperature of water heat-exchanged with the heat exchange portion when the temperature of the cell reaction is reduced, and controls the quantity of air supplied from the heating/cooling structure toward the heat exchange portion when the temperature of the cell reaction is increased.
REFERENCES:
patent: 2720936 (1955-10-01), Beu
patent: 3539397 (1970-11-01), Keating et al.
patent: 3653431 (1972-04-01), Loveley
patent: 3952794 (1976-04-01), Spanoudis
patent: 4824740 (1989-04-01), Abrams et al.
patent: 5023151 (1991-06-01), Landau et al.
Fuji Electric & Co., Ltd.
Kalafut Stephen
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