Chemistry: electrical current producing apparatus – product – and – Having magnetic field feature
Patent
1981-09-21
1982-12-07
LeFevour, Charles F.
Chemistry: electrical current producing apparatus, product, and
Having magnetic field feature
429 20, 429 26, 429 34, H01M 804
Patent
active
043627897
ABSTRACT:
Method and apparatus for cooling and recirculating oxidant to the cathode of a fuel cell stack. Heat energy is removed from the fuel cell stack through utilization of excess air or other oxidant relative to the stoichiometric amount for reaction with a hydrogen-containing fuel. Reaction products, including excess air and water, flow to a nozzle upstream of a flow constricting venturi. A coolant, such as liquid water in a fine spray form, is injected through the venturi and draws the reaction products through the venturi. The mixing of the coolant and the reaction products results in a condensation of the high temperature reaction product water vapor and further dehumidification of the reaction products takes place in a passive separator such as a demister. Coolant is injected into the venturi in sufficient quantity to develop the pressure head necessary to recirculate the cooled and dehumidified air through a conduit system and back to the fuel cell stack. A supply of makeup air is also provided. Coolant and water collected in the passive separator can also be recirculated for injection through the venturi.
REFERENCES:
patent: 3172784 (1965-03-01), Blackmer
patent: 3368923 (1968-02-01), Smith
patent: 3455743 (1969-07-01), Huebscher et al.
patent: 3479224 (1969-11-01), Jager
patent: 3498844 (1970-03-01), Sanderson
patent: 3516807 (1970-06-01), West et al.
patent: 3516867 (1970-06-01), Dankese
patent: 3553026 (1971-01-01), Winsel
patent: 3629075 (1971-12-01), Gutbler
patent: 3716415 (1973-02-01), Gagnon et al.
patent: 3801372 (1974-04-01), Shaw
patent: 3811951 (1974-05-01), Stedman
patent: 3982961 (1976-09-01), Grasso
patent: 4037024 (1977-07-01), Landau
LeFevour Charles F.
Otto W. E.
Westinghouse Electric Corp.
LandOfFree
Fuel cell cooling and recirculation system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fuel cell cooling and recirculation system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel cell cooling and recirculation system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1903662