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US 8,541,143 B2Granted
Fuel cell system and process for operating same
AssigneeEberspächer Climate Control Systems GmbH & Co. KG
InventorsSamuel Brandt, Richard Schmidt
Life of this patent
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Abstract
A process for operating a fuel cell system (1), especially in a motor vehicle. The fuel cell system (1) includes at least one fuel cell (3) as well as at least one reformer (2). To improve the possibility of warm start, a warm-holding mode, in which heat transfer takes place from the fuel cell (3) to the reformer (2), is activated after switching off the fuel cell system (1).
Claims21
A process for operating a fuel cell system, the process comprising the steps of:
- providing that the fuel cell system comprises at least one fuel cell as well as at least one reformer;
- providing a control;
- operating the fuel cell;
- and
- establishing a warm-holding mode with said control, in which heat transfer takes place from the fuel cell to the reformer and activating the warm-holding mode with said control after the fuel cell system has been switched off.
2 more elements
A fuel cell system, comprising:
- a fuel cell;
- a reformer;
- a control for operating the fuel cell system including operating the fuel cell and the reformer, said control being equipped or programmed for establishing a warm-holding mode and establishing the warm-holding mode in which said control controls heat transfer from said fuel cell to said reformer and heat transfer takes place from said fuel cell to said reformer and said control activating the warm-holding mode after said fuel cell has been switched off.
A fuel cell system, comprising:
- a fuel cell;
- a reformer;
- a fluid circuit for circulating a fluid between said fuel cell and said reformer for transferring heat, via a fluid in said fluid circuit, between said fuel cell and said reformer;
- a fluid delivery device for feeding the fluid in said fluid circuit;
- a control operating the fuel cell system including operating said fuel cell and said reformer, said control establishing a warm-holding mode in which said control controls said fluid delivery device to control heat transfer from said fuel cell to said reformer and heat transfer takes place from said fuel cell to said reformer and said control activating the warm-holding mode after said fuel cell has been switched off.
2 more elements
Dependencies are inferred from the claim text.