Pumps – Motor driven – Electric or magnetic motor
Reexamination Certificate
2006-06-20
2006-06-20
Koczo, Jr., Michael (Department: 3746)
Pumps
Motor driven
Electric or magnetic motor
C417S365000, C417S370000, C417S423800, C417S423120
Reexamination Certificate
active
07063519
ABSTRACT:
This invention provides a small, high efficiency, oil free motor driven compressor/blower suitable for providing pressurized, contamination-free gas and or air to transportation, industrial and aerospace fuel cell systems or other contaminant-intolerant applications. The motor driven compressor/blower rotor assembly is supported by foil air bearings and rotates at high speed by using a high frequency drive. The impeller is a centrifugal type design. The MDC can be easily integrated into the air management system of a fuel cell.
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Agrawal, Giri L., “Foil Air/Gas Bearing Technology—An Overview”, Int'l. Gas Turbine & Aeroengine Congress & Exhibition, Jun. 1997, pp. 1-11, ASME, New York, NY, US.
Agrawal Giridhari L.
Buckley Charles W.
Koczo, Jr. Michael
McCormick Paulding & Huber LLP
R & D Dynamics Corporation
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