Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate
2005-02-15
2005-02-15
Maples, John S. (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
C429S006000, C429S006000
Reexamination Certificate
active
06855444
ABSTRACT:
Provided is a fuel cell system capable of activating a fuel cell even under low-temperature environments. The fuel cell system detects an outside air temperature in the vicinity of the fuel cell to, after the fuel cell enters a deactivated state, estimate a transition of outside air temperature on the basis of a variation of the detected outside air temperature, and makes a decision as to whether or not the estimated outside air temperature falls below a predetermined freezing temperature at which moisture freezes. When a decision is made that the estimated outside air temperature falls below the predetermined freezing temperature, freezing prevention processing is conducted to prevent moisture from freezing in the interior of the fuel cell. The estimation of the outside air temperature transition is made by time-differentiating a variation of outside air temperature.
REFERENCES:
patent: 6358637 (2002-03-01), Fuss
patent: 20030022037 (2003-01-01), Parr et al.
patent: 20030031900 (2003-02-01), Tajima et al.
patent: 20030072984 (2003-04-01), Saloka et al.
patent: 20030162063 (2003-08-01), Yoshizawa et al.
patent: A 60-16263 (1985-01-01), None
patent: A 62-140375 (1987-06-01), None
patent: A 64-71079 (1989-03-01), None
patent: A 11-214025 (1999-08-01), None
patent: A 2001-185179 (2001-07-01), None
patent: A 2002-216824 (2002-08-01), None
Morishima Shingo
Tanaka Eitaro
Denso Corporation
Maples John S.
Oliff & Berridg,e PLC
LandOfFree
Fuel cell 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 system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel cell system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3481631