| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the suction performance of an ejector by preventing the mutual interference of the suction of a suction flow by a jet from each nozzle and to improve the fuel circulating performance of a fuel cell system by using the ejector. <P>SOLUTION: The fuel circulating apparatus of the fuel cell system has the ejector 6 having nozzles. The ejector 6 has the first nozzle 14 of a small nozzle diameter for a low output and the second nozzle 15 of a large nozzle diameter for a high output and is provided with the first diffuser 17 and the second diffuser 18 arranged coaxially with the respective nozzles. The second nozzle 15 and the second diffuser 18 are arranged to be nearer to a suction port 13 than to the first nozzle 14 and the first diffuser 17. <P>COPYRIGHT: (C)2004,JPO |
