EP 1323202 A2 20030702 - FUEL CELL UNIT WITH IMPROVED REACTION GAS UTILISATION
Title (en)
FUEL CELL UNIT WITH IMPROVED REACTION GAS UTILISATION
Title (de)
BRENNSTOFFZELLENANLAGE MIT VERBESSERTER REAKTIONSGASAUSNUTZUNG
Title (fr)
INSTALLATION DE PILES A COMBUSTIBLE ASSURANT UNE MEILLEURE EXPLOITATION DU GAZ DE REACTION
Publication
Application
Priority
- DE 0103319 W 20010829
- DE 10045098 A 20000912
Abstract (en)
[origin: WO0223653A2] The invention relates to a fuel cell unit with a fuel cell stack with improved reaction gas utilisation by means of variable mass transfer coefficients within the stack. The reaction gas utilisation is optimised by means of matching and shaping of the process gas stream distribution channels, such that the laminar flow in the smooth channels is turned into a turbulent flow and thus an increase in the mass transfer coefficient beta in the back end of the stack occurs. According to a preferred embodiment, pole plates, tripping edges and deflectors are provided in the distribution channels, by means of which the main direction of flow may be diverted to the active cell surfaces.
IPC 1-7
IPC 8 full level
H01M 8/0258 (2016.01); H01M 8/04089 (2016.01); H01M 8/24 (2016.01); H01M 8/0662 (2016.01)
CPC (source: EP US)
H01M 8/0258 (2013.01 - US); H01M 8/0265 (2013.01 - EP US); H01M 8/04097 (2013.01 - EP US); H01M 8/241 (2013.01 - EP US); H01M 8/2425 (2013.01 - EP); H01M 8/2457 (2016.02 - EP US); H01M 8/0662 (2013.01 - EP US); Y02E 60/50 (2013.01 - EP)
Citation (search report)
See references of WO 0223653A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0223653 A2 20020321; WO 0223653 A3 20020906; CA 2422052 A1 20030310; CN 1455967 A 20031112; DE 10045098 A1 20020404; EP 1323202 A2 20030702; JP 2004509438 A 20040325; US 2003152822 A1 20030814
DOCDB simple family (application)
DE 0103319 W 20010829; CA 2422052 A 20010829; CN 01815513 A 20010829; DE 10045098 A 20000912; EP 01971682 A 20010829; JP 2002527593 A 20010829; US 38695403 A 20030312