Pump impeller

Details Pump impeller Pump impeller

1998-10-08

2000-11-07

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Radially extending web or end plate

416188, 416223B, 416DIG2, 415 72, F04D 2938

Patent

active

061427365

ABSTRACT:
A pump impeller of a centrifugal- or a half axial type meant to pump liquids, mainly sewage water, the pump impeller including a hub provided with one or several vanes, the leading edges of which being strongly swept backwards. The size of the sweep angle (.alpha.) varies between 40 and 55 degrees at the connection with the hub, and 60 and 75 degrees at the periphery.

REFERENCES:
patent: 3644056 (1972-02-01), Wiselius
patent: 3782851 (1974-01-01), Hackbarth et al.
patent: 4676718 (1987-06-01), Sarvanne
patent: 5256032 (1993-10-01), Dorsch
patent: 5749707 (1998-05-01), Nomoto

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