| 摘要 |
<p>Appropriate tooth profiles are given to an inner rotor and an outer rotor that mesh with each other, and as a result, pump performance and mechanical efficiency are prevented from being reduced and noise is prevented from occurring. At least either an inner rotor (110) or an outer rotor (120) has a tooth profile formed from a curve where a cycloid curve is bisected and separated and the gap is supplemented by a line or a curve.</p> |
