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Fuel injection and mixing systems having piezoelectric elements and methods of using the same

United States Patent

December 13, 2011
View the Complete Patent at the US Patent & Trademark Office
A fuel injection and mixing system is provided that is suitable for use with various types of fuel reformers. Preferably, the system includes a piezoelectric injector for delivering atomized fuel, a gas swirler, such as a steam swirler and/or an air swirler, a mixing chamber and a flow mixing device. The system utilizes ultrasonic vibrations to achieve fuel atomization. The fuel injection and mixing system can be used with a variety of fuel reformers and fuel cells, such as SOFC fuel cells.
Mao; Chien-Pei (Clive, IA), Short; John (Norwalk, IA), Klemm; Jim (Des Moines, IA), Abbott; Royce (Des Moines, IA), Overman; Nick (West Des Moines, IA), Pack; Spencer (Urbandale, IA), Winebrenner; Audra (Des Moines, IA)
Delavan Inc (West Des Moines, IA)
11/ 734,260
April 11, 2007
GOVERNMENT SUPPORT The Government has rights in this invention, pursuant to Contract No. DE-FC26-04NT42229 awarded by the U.S. Department of Energy.