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1. (WO2017155972) CENTER BUSHING TO BALANCE AXIAL FORCES IN MULTI-STAGE PUMPS

Pub. No.:    WO/2017/155972    International Application No.:    PCT/US2017/021123
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Wed Mar 08 00:59:59 CET 2017
IPC: F04D 1/06
F04D 29/041
F04D 17/12
F04D 29/40
F04D 29/04
F04D 29/046
F03B 11/06
Applicants: FLUID HANDLING LLC
Inventors: RUZICKA, Paul J.
FELIX, Christopher J.
ROIMICHER, Marcos D.
Title: CENTER BUSHING TO BALANCE AXIAL FORCES IN MULTI-STAGE PUMPS
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.