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Three-wheel air turbocompressor for PEM fuel cell systems

United States Patent

August 19, 2003
View the Complete Patent at the US Patent & Trademark Office
A fuel cell system comprises a compressor and a fuel processor downstream of the compressor. A fuel cell stack is in communication with the fuel processor and compressor. A combustor is downstream of the fuel cell stack. First and second turbines are downstream of the fuel processor and in parallel flow communication with one another. A distribution valve is in communication with the first and second turbines. The first and second turbines are mechanically engaged to the compressor. A bypass valve is intermediate the compressor and the second turbine, with the bypass valve enabling a compressed gas from the compressor to bypass the fuel processor.
Rehg; Tim (Rancho Palos Verdes, CA), Gee; Mark (South Pasadena, CA), Emerson; Terence P. (Hermosa Beach, CA), Ferrall; Joe (Simi Valley, CA), Sokolov; Pavel (Redondo Beach, CA)
Honeywell International Inc. (Morristown, NJ)
09/ 712,621
November 13, 2000
GOVERNMENT RIGHTS The United States Goverment has rights in the present invention pursuant to Contract No. DE-FC02-97EE50470 issued by the Department of Energy.