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Fuel dissipater for pressurized fuel cell generators

United States Patent

November 4, 2003
View the Complete Patent at the US Patent & Trademark Office
An apparatus and method are disclosed for eliminating the chemical energy of fuel remaining in a pressurized fuel cell generator (10) when the electrical power output of the fuel cell generator is terminated during transient operation, such as a shutdown; where, two electrically resistive elements (two of 28, 53, 54, 55) at least one of which is connected in parallel, in association with contactors (26, 57, 58, 59), a multi-point settable sensor relay (23) and a circuit breaker (24), are automatically connected across the fuel cell generator terminals (21, 22) at two or more contact points, in order to draw current, thereby depleting the fuel inventory in the generator.
Basel; Richard A. (Pittsburgh, PA), King; John E. (Pittsburgh, PA)
Siemens Westinghouse Power Corporation (Orlando, FL)
09/ 784,612
February 15, 2001
GOVERNMENT CONTRACT The Government of the United States of America has certain rights in this invention pursuant to Contract No. DE-FC26-97FT34139 awarded by the U.S. Department of Energy.