AXIAL FORCE DISCHARGE METHOD FOR MULTISTAGE SEGMENTAL PUMP Russian patent published in 2017 - IPC F04D29/41

Abstract RU 2623634 C1

FIELD: engines and pumps.

SUBSTANCE: axial force of a multistage segmental pump is discharged by a discharge device, installed on the shaft after the last-stage runner which is affected by medium pressure drop before the discharge device and after it. The discharge device is designed as a face seal, the secondary seal of which is configured with a design diameter which provides for axial force balance.

EFFECT: increased pump efficiency due to reduction of volume losses via discharge without losing a portion of consumed pump power on parasite operating media flow through the pump.

2 dwg

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RU 2 623 634 C1

Authors

Kurylev Andrej Vadimovich

Makoldin Vladimir Gennadevich

Dates

2017-06-28—Published

2016-01-27—Filed