Multi-stage rotary pump

Details Multi-stage rotary pump Multi-stage rotary pump

1988-09-02

1989-10-31

Green, Randall L.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Plural rigidly related blade sets

4152141, F04D 2962

Patent

active

048773727

ABSTRACT:
A multistage rotary pump, which comprises a substantially closed pump body having a jacket surrounding the pump body in spaced relationship for the purpose of forming an annular return volume, a base element comprising suction and pressure connecting pieces and a top element comprising the driving motor. The jacket is provided in both its terminal portions with a peripheral contact shoulder which is acted upon in each case by an annular clamping arrangement, the clamping arrangement in question being connected on the other hand to the base element and top element, respectively. A coupling device of this nature is preferentially applied in the case of in-line rotary pumps.

REFERENCES:
patent: 2366964 (1945-01-01), Howard
patent: 2753807 (1956-07-01), Lung
patent: 4244675 (1981-01-01), Bower
patent: 4669956 (1987-06-01), Brunel et al.
Grundfos Kreisel-Pumpen Publication

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