| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a generator-integrated waterwheel for a hydraulic power resource whose rates between the flow rate and the head are various. <P>SOLUTION: This waterwheel includes a stator 17 within a casing 1, a main shaft 4 placed on a shaft center portion of the casing 1, a plurality of submerged bearings 5 and 6 that are placed on the main shaft 4 and that fix the main shaft 4 to the casing 1, impeller bosses 7a, 7b, and 7c that are fitted into the submerged bearings 5 and 6, rotor yokes 15a, 15b, and 15c that are fixed to multistage impellers 2A, 2B, and 2C that are fixed to the impeller bosses 7a, 7b, and 7c, and permanent magnets 16a, 16b, and 16c placed on the rotor yokes 15a, 15b, and 15c. The permanent magnets 16a, 16b, and 16c face to the stator 17 and multistage guide vanes 3a, 3b, and 3c are provided on the upstream side of the impellers 2A, 2B, and 2C. <P>COPYRIGHT: (C)2003,JPO</p> |
