Electronic by-pass control of gas around the humidifier to...

Details Electronic by-pass control of gas around the humidifier to... Electronic by-pass control of gas around the humidifier to...

2005-04-26

2005-04-26

Barr, Michael (Department: 1746)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S010000, C429S006000

Reexamination Certificate

active

06884534

ABSTRACT:
A humidity control system for a fuel cell stack includes a gas supply and a humidifier including an outlet and an inlet connected to the gas supply. A fuel cell stack includes an inlet that is connected to the outlet of the humidifier. A bypass line and a valve bypass gas around the humidifier to control the humidity of gas entering the fuel cell stack. The valve is located in the bypass line, between the gas supply and the humidifier, or between the humidifier and the fuel cell stack. The valve is a gas restriction valve, a throttle valve, or a directional valve. A humidity sensor generates a humidity signal based on humidity of gas entering the fuel cell stack. A controller connected to the humidity sensor and the valve controls the valve based on the humidity signal. The inlet of the fuel cell stack is one of a cathode flow line and an anode flow line of the fuel cell stack.

REFERENCES:
patent: 5935725 (1999-08-01), Dhar et al.
patent: 5952119 (1999-09-01), Wilson
patent: 6106964 (2000-08-01), Voss et al.
patent: 20010010872 (2001-08-01), Suzuki et al.
patent: 20010010875 (2001-08-01), Katagiri et al.
patent: 20010021468 (2001-09-01), Kanai et al.

Affiliated with

Also associated with

Rating

Electronic by-pass control of gas around the humidifier to... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic by-pass control of gas around the humidifier to..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic by-pass control of gas around the humidifier to... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3440987