Pump diffuser anti-spin device

Details Pump diffuser anti-spin device Pump diffuser anti-spin device

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 13/08 (2006.01) F04D 1/06 (2006.01) F04D 29/00 (2006.01) F04D 29/62 (2006.01)

Patent

CA 2422414

In a downhole centrifugal pump, diffusers are stacked one on top of each other inside of tubular pump housing without contacting the pump drive shaft or impellers. A first compressive device applies a pre-compressive force to a stack of diffusers to prevent the diffusers from rotating inside the tubular housing of the pump with the drive shaft. A second compressive device located between the first compressive device and the stack of diffusers applies another compressive load on the stack of diffusers in the event the first compressive device ceases to apply the compressive load.

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