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Water injected fuel cell system compressor

United States Patent

July 31, 2001
View the Complete Patent at the US Patent & Trademark Office
A fuel cell system including a dry compressor for pressurizing air supplied to the cathode side of the fuel cell. An injector sprays a controlled amount of water on to the compressor's rotor(s) to improve the energy efficiency of the compressor. The amount of water sprayed out the rotor(s) is controlled relative to the mass flow rate of air inputted to the compressor.
Siepierski; James S. (Williamsville, NY), Moore; Barbara S. (Victor, NY), Hoch; Martin Monroe (Webster, NY)
General Motors Corporation (Detroit, MI)
09/ 286,311
April 5, 1999
The Government of the United States of America has rights in this invention pursuant to Contract No. DE-AC02-90CH10435 awarded by the U.S. Department of Energy.