US 12,308,488 B2
Fuel cell system
Raphael Neubauer, Graz (AT); Nikolaus Soukup, Hamburg (DE); Matthias Lerch, Graz (AT); Robert Pöschl, Judendorf-Strassengel (AT); and Julian Makinson, Graz (AT)
Assigned to AVL List GmbH, Graz (AT)
Appl. No. 17/776,253
Filed by AVL List GmbH, Graz (AT)
PCT Filed Dec. 9, 2020, PCT No. PCT/AT2020/060438
§ 371(c)(1), (2) Date May 12, 2022,
PCT Pub. No. WO2021/113888, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. A 51078/2019 (AT), filed on Dec. 9, 2019.
Prior Publication US 2022/0393191 A1, Dec. 8, 2022
Int. Cl. H01M 8/04 (2016.01); F28D 7/16 (2006.01); H01M 8/04007 (2016.01); H01M 8/04014 (2016.01); H01M 8/04089 (2016.01); H01M 8/12 (2016.01)
CPC H01M 8/04014 (2013.01) [F28D 7/1607 (2013.01); H01M 8/04074 (2013.01); H01M 8/04097 (2013.01); F28F 2250/106 (2013.01); H01M 2008/1293 (2013.01)] 10 Claims
OG exemplary drawing
 
1. Fuel cell system (10) comprising at least one fuel cell stack (11) having an anode section (12) and a cathode section (13), an ejector (14), a fuel mixture line (15) for conveying a fuel mixture containing primary fuel and secondary fuel from the ejector (14) to the anode section (12), a primary fuel line (16) for supplying the primary fuel to the ejector (14), and a recirculation line (17) for returning the secondary fuel from the anode section (16) to the ejector (14),
characterised in that
at least sections of the primary fuel line (16) extend through a heat exchange volume (18) within the recirculation line (17) for a heat-transmitting connection between the secondary fuel and the primary fuel upstream of a suction nozzle section (27) via a wall of the primary fuel line (16) prior to intermixing.