Pump having a pump housing with one or more feeding grooves

Details Pump having a pump housing with one or more feeding grooves Pump having a pump housing with one or more feeding grooves

1998-11-03

2000-10-31

Verdier, Christopher

Rotary kinetic fluid motors or pumps

With separating means or guard for solid matter in working...

4151691, F04D 2942, F04D 2970

Patent

active

06139260&

ABSTRACT:
A pump of a centrifugal- or a half axial type meant for pumping liquids, mainly sewage water, the pump having a pump housing and a pump impeller. The pump impeller includes a hub provided with one or several vanes, the leading edges of which being strongly swept backwards. Feeding grooves are arranged in the surrounding pump housing in a surface opposed the vanes.

REFERENCES:
patent: 3340812 (1967-09-01), Schlesiger
patent: 3447475 (1969-06-01), Blum
patent: 4349322 (1982-09-01), Stahle
patent: 5011370 (1991-04-01), Sodergard
patent: 5707016 (1998-01-01), Witsken

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