Patent ID: 8043051
Filing Date: 2011-10-25
Classification: F04D,F05D,Y10S

Abstract:
1. An electrical submersible pump assembly, comprising: a motor coupled to a seal section, which in turn is coupled to a pump, wherein the pump comprises: a housing having an axis; a plurality of diffusers mounted in the housing, each diffuser comprising a cylindrical body having at least one lug extending therefrom in an axial direction, a complementary recess formed in the cylindrical body extending in the axial direction opposite the lug, the complementary recess receiving and nesting a respective lug on an axially adjacent diffuser to form an interlocked stack that prevents relative rotation between the diffusers; a sealing member located on an exterior of each diffuser, and a surface formed on each diffuser that forms a seal with the sealing member on the axially adjacent diffuser; and a housing adapter mounted and sealed to at least one diffusers, the housing adapter having a housing seal member that seals with the housing.