F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
F04D 1/06 (2006.01) F04D 1/02 (2006.01) F04D 29/44 (2006.01)
Patent
CA 2363620
An electrical submersible well pump assembly has an inducer and diffuser for applying a positive pressure to the first pump stage. The pump assembly includes a centrifugal pump with a housing having a well fluid inlet and a number of pump stages. Each pump stage has an impeller and a diffuser. An inducer is mounted in the housing upstream of the impeller of the first pump stage. The inducer has a helical flight that is rotatable in unison with the pump. A diffuser is positioned between the inducer and the impeller of the first stage.
Henry Joe V.
Shafer Terry W.
Baker Hughes Incorporated
Sim & Mcburney
LandOfFree
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