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US 2024/0178418 A1Published application
Method for operating a fuel cell system, and fuel cell system
AssigneeRobert Bosch GmbH
InventorHelerson Kemmer
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AssigneeRobert Bosch GmbH
InventorHelerson Kemmer
Estimating the term…
The invention relates to a method for operating a fuel cell system (1), in which air is supplied to a fuel cell stack (2) via an air intake path (3) and outgoing air emerging from the fuel cell stack (2) is removed via an outgoing air path (4), and in which a coolant of a cooling circuit (5) is conducted through the fuel cell stack (2) in order to remove the waste heat. According to the invention, in a starting situation, in particular when starting the fuel cell system (1) at freezing temperatures, the coolant is heated using at least one heat exchanger (6, 7) prior to entering the fuel cell stack (2), wherein the outgoing air emerging from the fuel cell stack (2) is used as a heat source. The invention further relates to a fuel cell system (1) for carrying out the method.
A method for operating a fuel cell system (1), in which air is supplied to a fuel cell stack (2) via an air intake path (3) and outgoing air emerging from the fuel cell stack (2) is discharged via an outgoing air path (4), and in which a coolant of a cooling circuit (5) is conducted through the fuel cell stack (2) in order to dissipate waste heat,
A fuel cell system (1) comprising a fuel cell stack (2), an air intake path (3), via which air can be supplied to the fuel cell stack (2), and an outgoing air path (4), via which outgoing air emerging from the fuel cell stack (2) can be removed, and further comprising a cooling circuit (5) which carries a coolant for discharging waste heat from the fuel cell stack (2),
Dependencies are inferred from the claim text.