Patent ID: 11953024
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  E | IPC E  F

Claim 0:
1. A submersible pump assembly, comprising:
a motor comprising a first drive shaft;
a seal section comprising a second drive shaft that is coupled to the first drive shaft of the motor; and
a centrifugal pump assembly comprising a third drive shaft that is coupled directly or indirectly to the second drive shaft of the seal section and a plurality of pump stages, wherein each pump stage comprises an impeller coupled to the third drive shaft and a diffuser retained by a housing of the centrifugal pump assembly, wherein the diffuser of each pump stage comprises a first plurality of vanes each having a first axial length and a second plurality of vanes each disposed between a pair of vanes of the first plurality of vanes and each having a second axial length, wherein the second axial length is between three quarters (¾) of the first axial length and one quarter (¼) of the first axial length, wherein the first axial length and the second axial length extend in the direction of a centerline axis of the diffuser and wherein the centerline axis of the diffuser is coincident with a centerline axis of the centrifugal pump assembly.