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1. (WO2018166979) CENTRIFUGAL PUMP UNIT

Pub. No.:    WO/2018/166979    International Application No.:    PCT/EP2018/056099
Publication Date: Fri Sep 21 01:59:59 CEST 2018 International Filing Date: Tue Mar 13 00:59:59 CET 2018
IPC: F04D 1/00
F04D 13/02
F04D 13/06
F04D 15/00
F04D 29/046
F04D 29/08
F04D 29/10
F04D 29/42
F04D 29/48
Applicants: GRUNDFOS HOLDING A/S
Inventors: BLAD, Thomas
MØNSTER, Peter
Title: CENTRIFUGAL PUMP UNIT
Abstract:
The invention relates to a centrifugal pump unit, comprising an electrical drive motor, at least one impeller wheel (14) driven thereby, and a pump housing (12), which surrounds the impeller wheel (14) and in which at least one valve element (18, 18i) is arranged, which valve element can be rotated between two switching positions, the valve element being rotatably retained on at least one bearing in the interior of the pump housing (12), the bearing being arranged in a bearing space (140), which is separated by at least one seal (142) from the remaining interior of the pump housing (12), which remaining interior holds a fluid to be conveyed.