US 12,221,985 B2
Submersible pump
Paul Wayne Schmidt, Carlton, OR (US); and Avijit Ghosh, Austin, TX (US)
Assigned to Vortex Pipe Systems LLC, Austin, TX (US)
Filed by Vortex Pipe Systems LLC, Austin, TX (US)
Filed on Feb. 2, 2024, as Appl. No. 18/431,591.
Application 18/431,591 is a continuation of application No. 18/332,173, filed on Jun. 9, 2023, granted, now 11,953,026.
Application 18/332,173 is a continuation of application No. 18/149,463, filed on Jan. 3, 2023, granted, now 11,713,764, issued on Aug. 1, 2023.
Claims priority of provisional application 63/388,308, filed on Jul. 12, 2022.
Prior Publication US 2024/0410369 A1, Dec. 12, 2024
Int. Cl. F04D 3/02 (2006.01); F04D 13/08 (2006.01); F04D 29/54 (2006.01)
CPC F04D 3/02 (2013.01) [F04D 13/08 (2013.01); F04D 29/548 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pump, comprising:
a rotor comprising an impeller and a flow amplification body, wherein an upstream end portion of the rotational flow amplification body extends from a downstream end portion of the impeller, wherein a central passage of the flow amplification body includes flow amplifying vanes therein, wherein the impeller includes a sidewall at least partially defining an interior space of the impeller, wherein the sidewall includes at least one flow-inducing protrusion extending outwardly therefrom, and wherein the at least one flow-inducing protrusion has a fluid flow passage extending therethrough.