Claims
- 1. A process for operating an apparatus controlling output of an air-breathing fuel cell system, comprising the steps of determining, based on measured fuel cell current, a desired value for air volume flow, regulating an actual value of the air volume flow by adjusting rotary speed of a compressor to the desired value, and adjusting pressure in a cathode space of the fuel cell to a predetermined working pressure by adjusting an expander absorption capacity.
- 2. The process according to claim 1, wherein, as the fuel cell system is started, the compressor is driven by a starter motor until a minimum air volume flow and a minimum working pressure are obtained, and subsequently the starter motor is deactivated after an electric motor is activated.
Priority Claims (1)
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Date |
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43 18 818.4 |
Jun 1994 |
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Parent Case Info
This is a divisional application of application Ser. No. 08/257,325, filed Jun. 7, 1994, now U.S. Pat. No. 5,434,016.
US Referenced Citations (6)
Foreign Referenced Citations (1)
Number |
Date |
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4021097 |
Jan 1992 |
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Divisions (1)
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Number |
Date |
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257325 |
Jun 1994 |
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