US 12,463,227 B2
Fuel cell system
Oliver Harr, Reichenbach (DE); Philipp Hausmann, Kirchheim (DE); and Benjamin Pieck, Kirchheim (DE)
Assigned to CELLCENTRIC GMBH & CO. KG, Kirchheim Unter Teck (DE)
Appl. No. 17/998,770
Filed by CELLCENTRIC GMBH & CO. KG, Kirchheim unter Teck (DE)
PCT Filed May 12, 2021, PCT No. PCT/EP2021/062573
§ 371(c)(1), (2) Date Nov. 14, 2022,
PCT Pub. No. WO2021/228915, PCT Pub. Date Nov. 18, 2021.
Claims priority of application No. 10 2020 206 156.4 (DE), filed on May 15, 2020.
Prior Publication US 2023/0197988 A1, Jun. 22, 2023
Int. Cl. H01M 8/04 (2016.01); H01M 8/04111 (2016.01); H01M 8/04119 (2016.01); H01M 8/04223 (2016.01); H01M 8/04225 (2016.01)
CPC H01M 8/04225 (2016.02) [H01M 8/04111 (2013.01); H01M 8/04126 (2013.01); H01M 8/04156 (2013.01); H01M 8/04253 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A fuel cell system with at least one fuel cell stack, which comprises an anode chamber and a cathode chamber, with at least one air conveying device for the supply of the cathode chamber with air via a feed air line, with an outlet air line from the cathode chamber, with at least one fuel supply device for the supply of the anode chamber with fuel, with at least one anode circuit for the recirculation of unused fuel around the anode chamber, furthermore with a cathode bypass, characterized in that the cathode bypass branches off from the feed air line upstream of or in the region of a valve device in said feed air line, and opens into the outlet air line downstream of or in the region of a further valve device in said outlet air line, wherein a gas jet pump which can be driven by the air which flows around the cathode chamber is arranged in the cathode bypass, which gas jet pump is connected switchably on the suction side to the anode chamber and/or the cathode chamber.