Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate
2008-07-08
2008-07-08
Crepeau, Jonathan (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
C429S010000, C429S006000
Reexamination Certificate
active
07396604
ABSTRACT:
A fuel cell system including a turbomachine compressor that delivers charge air to the cathode side of a fuel cell module. A bi-directional mass flow meter measures the airflow through the compressor, and provides an indication of a reverse airflow through the compressor for surge protection. A controller receives a signal from the mass flow meter indicative of the reverse flow. The controller controls a motor driving the compressor and a back pressure valve at the cathode exhaust of the fuel cell module to control the pressure in the fuel cell module to remove the surge condition.
REFERENCES:
patent: 6984464 (2006-01-01), Margiott et al.
Article entitled “Surge Control,” available Jan. 10, 2002, [online], [retrieved on Apr. 10, 2006] Retrieved from the Dresser-Rand website <URL:http:llwww.dresser-rand.comlcontrolslscO498,htm>.
Crepeau Jonathan
General Motors Corporation
Hodge Robert
LandOfFree
Centrifugal compressor surge detection using a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Centrifugal compressor surge detection using a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Centrifugal compressor surge detection using a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2786005