| 摘要 |
<p>A bubble generating apparatus in the present invention includes multiple planet gears interposed between an inner pipe including an outer teeth gear formed on the outer circumferential surface and including a through hole in which gas enters on each valley part of the outer teeth gear, and an outer pipe including an inner teeth gear formed on the inner circumferential surface, and including through hole on each valley part of the inner teeth gear to rotate or to rotate and revolve, for the planet gears moved by engagement of teeth to selectively and periodically cut air or gas discharged through the through hole on the inner pipe, and cut the air and gas discharged through the through hole of the outer pipe again for the multiple planet gears with a simple structure to periodically cut the air or gas discharged through the through hole of the inner pipe and the through hole of the outer pipe without generating large friction between the inner pipe and the outer pipe to finely cut bubbles flowing from the inner pipe to the outer pipe or from the outer pipe to the inner pipe, thereby easily and stably generating the large amount of small bubbles compared with the past.</p> |
