| 摘要 |
<p>The invention provides a mixing impeller for full immersion in a liquid to mix the liquid. The impeller has a central, longitudinally-extending axis of rotation, and includes a unitary body having a circular area disposed radially about the axis of rotation. A plurality of similar coplanar radial extensions extend from the circular area and are spaced equally about the area defining similar radial discharge slots between adjacent pairs of the extensions. A plurality of blades are cantilevered from the extension and extend axially and outwardly from the extensions, such that the body expands generally conically from the circular area along the lengths of the blades. Each blade has a leading edge, a trailing edge and an end edge remote from the associated radial extensions with the leading edge positioned radially inside the trailing edge such that as the impeller rotates in the liquid reservoir, liquid will be inspired to flow upwardly into the body towards the circular area before discharging through gaps between the blades and through the radial slots. A coupling is attached to the circular area of the impeller for connecting the impeller to a drive shaft.</p> |
