Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Process or means for control of operation
Reexamination Certificate
2011-06-14
2011-06-14
Cantelmo, Gregg (Department: 1726)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Process or means for control of operation
C429S443000, C429S444000, C429S447000, C429S448000
Reexamination Certificate
active
07960067
ABSTRACT:
A direct oxidation fuel cell (DOFC) system, comprises at least one fuel cell assembly including a cathode and an anode with an electrolyte positioned therebetween; a source of liquid fuel in fluid communication with an inlet of the anode; an oxidant supply in fluid communication with an inlet of the cathode; a liquid/gas (L/G) separator in fluid communication with outlets of the anode and cathode for: (1) receiving unreacted fuel and liquid and gaseous products, and (2) supplying a solution of fuel and liquid product to the anode inlet; and a control system for measuring the amount of liquid product and controlling oxidant stoichiometry of the system operation in response to the measured amount of liquid product. Alternatively, the control system controls the concentration of the liquid fuel in the solution supplied to the anode inlet, based upon the system operating temperature or output power.
REFERENCES:
patent: 5599638 (1997-02-01), Surampudi et al.
patent: 6296964 (2001-10-01), Ren et al.
patent: 6821658 (2004-11-01), Acker et al.
patent: 6824900 (2004-11-01), DeFilippis
patent: 2002/0119352 (2002-08-01), Baldauf et al.
patent: 2003/0175569 (2003-09-01), Inagaki et al.
patent: 2003/0194589 (2003-10-01), Pratt et al.
patent: 2004/0131898 (2004-07-01), Zhang et al.
patent: 2004/0209136 (2004-10-01), Ren et al.
patent: 2004/0209154 (2004-10-01), Ren et al.
patent: 2004/0265655 (2004-12-01), Kozu et al.
patent: 2006/0019143 (2006-01-01), Muramatsu et al.
patent: 2007/0054159 (2007-03-01), Ryoichi et al.
patent: 2002-110191 (2002-04-01), None
patent: 2002-289200 (2002-10-01), None
patent: 2004-247091 (2004-09-01), None
patent: WO 01/48853 (2001-07-01), None
patent: WO 2004/032258 (2004-04-01), None
patent: WO 2004/093231 (2004-10-01), None
patent: WO 2004088781 (2004-10-01), None
Lim et al., “Development of high-power electrodes for a liquid-feed direct methanol fuel cell”,Journal Power Sources113 (2003) 145-150, 2002 Elsevier Science B.V.
Pasaogullari et al., “Liquid Water Transport in Gas Diffusion Layer of Plymer Electrolyte Fuel Cells”,Journal of The Electrochemical Society, 151 (3) A399-A406 (2004).
Natarajan et al., “A Two-Dimensional, Two-Phase, Multicomponent, Transient Model for the Cathode of a Proton Exchange Membrane Fuel Cell Using Conventional Gas Distributors”,Journal of the Electrochemical Society, 148 (12) A1324-A1335 (2001).
Pasaogullari et al.,“Two-phase transport and the role of micro-porous layer in polymer electrolyte fuel cell”,Electrochimica Acta49 (2004) 4359-4369, 2004 Elsevier Science Ltd.
International Search Report and written Opinion Of The International Searching Authority Issued in corresponding with International Application No. PCT/US2006/044887, dated on May 29, 2007.
Valdez, T.I., et al. “Development of a 150-Watt Direct Methanol Fuel Cell System”, The Fifteenth Annual Battery Conference on Applications and Advances, Jan. 11, 2000, pp. 37-40, USA.
Naryanan S. et al., “Design and Operation of and Electrochemical Methanol Concentration Sensor For Direct Methane Fuel Cell Systems”, Mar. 2000, pp. 117-120, vol. 3, No. 3, Electrochemical and Solid-State Letters, IEEE Service Center, USA.
Takada Masahiro
Wang Chao-Yang
Cantelmo Gregg
McDermott Will & Emery LLP
Panasonic Corporation
Penn State Rsearch Foundation
Wang Eugenia
LandOfFree
Direct oxidation fuel cell systems with regulated fuel... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Direct oxidation fuel cell systems with regulated fuel..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct oxidation fuel cell systems with regulated fuel... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2683887