公开(公告)号：US10746189B2

公开(公告)日：2020-08-18

申请号：US15452068

申请日：2017-03-07

Applicant: FLUID HANDLING LLC.

Inventor： Paul J. Ruzicka ,  Christopher J. Felix ,  Marcos D. Roimicher

IPC: F04D29/056 ,  F04D1/06 ,  F04D29/051 ,  F04D29/041 ,  F04D17/12 ,  F04D17/16

Abstract: A multi-stage pump featuring different stages configured to pump a fluid from a pump suction and to a pump discharge; and a center bushing configured between the different stages, having a center bushing side configured with pockets to balance axial forces between the different stages of the multistage pump. The pockets are configured as curved rib pockets, extruded circle or circular pockets, or full length rib pockets.