US 12,424,650 B2
Fuel cell system assembly
Bernhard Zickgraf, Neckarsulm (DE); and Sebastian Nuber, Stuttgart (DE)
Assigned to Robert Bosch GmbH, Stuttgart (DE)
Appl. No. 17/794,247
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed Dec. 28, 2020, PCT No. PCT/EP2020/087906
§ 371(c)(1), (2) Date Jul. 20, 2022,
PCT Pub. No. WO2021/148226, PCT Pub. Date Jul. 29, 2021.
Claims priority of application No. 10 2020 200 709.8 (DE), filed on Jan. 22, 2020.
Prior Publication US 2023/0073323 A1, Mar. 9, 2023
Int. Cl. H01M 8/249 (2016.01); H01M 8/0265 (2016.01); H01M 8/04007 (2016.01); H01M 8/04029 (2016.01)
CPC H01M 8/249 (2013.01) [H01M 8/0265 (2013.01); H01M 8/04029 (2013.01); H01M 8/04074 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A fuel-cell-system combination comprising at least two coupled fuel-cell systems (A, B) which are configured to be operated at different load points, wherein each fuel-cell system (A, B) is connected to in each case one respective cooling circuit (3A, 3B), with a circulating coolant, via a coolant feed line (1A, 1B) and a coolant discharge line (2A, 2B), wherein the cooling circuits (3A, 3B) are coupled via a common recirculation line (4), via which the coolant feed lines (1A, 1B) are supplied with coolant, wherein a return (5) with at least two auxiliary units (6.1, 6.2) is connected to the common recirculation line (4).