Progressive vortex pump
AssigneeHigra Industrial Ltda
InventorSILVINO GEREMIA
Life of this patent
Estimating the term…
Abstract
A progressive vortex pump comprises an inlet housing in contact with the pumped fluid, a pump housing connected to the inlet housing, and an outlet housing connected to the pump housing and connected to a pumping pipe. The pump housing comprises a disc-shaped rotor having a central bore and a rim with vanes. Each rotor comprises at least one through hole along the axial direction, said through hole being positioned between the central bore and the rotor rim. Advantageously, the presence of a through hole on the rotor enables, under operating conditions, fluid exchange from the posterior fluid film to the anterior fluid film, thus promoting a pressure balance between the posterior and anterior fluid films, therefore enabling the rotor to work evenly, preventing rubbing on adjacent diffusers.
Claims3
A progressive vortex pump comprising:
- an inlet housing (21) in contact with the fluid (F) to be pumped;
- a pump housing (23) connected to the inlet housing (21) and comprising multiple adjacent pumping stages (24), each pumping stage (24) having
- a stator (240) having an anterior side and a posterior side, said stator (240) being attached within the pump housing (23);
- a first diffuser (250) coupled to the anterior side of the stator (240);
- a second diffuser (250) coupled to the posterior side of the stator (240);
- and a disc-shaped rotor (260) with a central bore (261) and a rim (262) with vanes (263), said rotor (260) being positioned internally to the stator (240) between the first diffuser (250) and the second diffuser (250);
- the stator (240), the diffusers (250) and the rotor (260) being built and arranged to receive a shaft (40) which is connected to the central bore (261) of the rotor (260) and to form at least two stage inlets (E1, E2), each stage inlet (E1, E2) in communication with a respective circular channel (C1, C2), which is in communication with a respective stage outlet (S1, S2), and a stage outlet (S1, S2) of an anterior pumping stage (24) is connected with a respective stage inlet (E1, E2) of a posterior pumping stage (24);
- and
- an outlet housing (22) connected to the pump housing (23) and connected to a pumping pipe (30);
- wherein:
- the shaft (40) is coupled to a motor assembly (50, 50′) which drives the pump;
- and
- each rotor (260) comprises at least one through hole (264) along the axial direction, said through hole (264) being positioned between the central bore (261) and the rim (262).
Dependencies are inferred from the claim text.