Impeller with axially curving vane extensions to prevent airlock

摘要

#$%^&*AU2019203725A120190620.pdf#####ABSTRACT OF THE DISCLOSURE A pump has a housing that includes an inlet to receive a liquid to be pumped, an outlet to provide the liquid being pumped, a pumping chamber between the inlet/outlet; and a motor shaft to rotate in the pumping chamber. The impeller is 5 arranged on the motor shaft, includes radially curved vanes to rotate inside the pumping chamber to pump the liquid from the pumping chamber to the outlet; and includes anti-airlock vanes formed as a set of axially curving vane extensions that extend along the axis of the shaft, rotate with one part inside the pumping chamber, protrude through the inlet and rotate with another part outside the inlet for 0 submerging in liquid to be pumped underneath the pump, draw the liquid through the inlet into the pumping chamber, and provide the liquid to the radially curved vanes to generate pressure to force entrapped air from the pumping chamber. FIG. 66/8 A7 5 21 3 - 13 229 24' Impeller equipped with anti-airlock vanes, 24 6a has axially curving vane 24b 24d 24" extensions, 24b,24d which protrude into the A water underneath the pump FIG. 6: Pump using an impeller with anti-airlock vane extensions