Liquid ring pump having tapered blades and housing

Details Liquid ring pump having tapered blades and housing Liquid ring pump having tapered blades and housing

1990-09-07

1992-01-07

Look, Edward K.

Rotary kinetic fluid motors or pumps

Including means for handling portion separated from working...

415143, 4151821, 416223A, 417 69, 55 52, 55203, F01D 1100

Patent

active

050785737

ABSTRACT:
A liquid ring vacuum pump includes a vacuum pump housing composed by two opposed end walls spaced by an annular wall defining a vacuum pump chamber; a shaft extends into the vacuum pump chamber; a rotor is mounted on the shaft and is arranged eccentrically in the chamber; the rotor includes a rotor central portion and a plurality of vacuum pump vanes extending therefrom toward the annular wall; the rotor central portion and the vanes having at least one lateral edge adjacent the end walls facing the annular wall, the lateral edges and the end walls form a clearance therebetween; and the clearance between the edges and at least one of the adjacent end walls of the vacuum pump chamber increases towards the annular wall. A combination of the liquid ring vacuum pump with a centrifugal pump for pumping multi-phase liquids such as gas and solids containing fiber suspensions of the pulp and paper industry is also provided.

REFERENCES:
patent: 2581055 (1952-01-01), Wahle
patent: 3519365 (1970-07-01), Conhagen
patent: 4111597 (1978-09-01), Grossi et al.
patent: 4776758 (1988-10-01), Gullichsen
patent: 4877368 (1989-10-01), Timperi et al.
patent: 4971519 (1990-11-01), Timperi
patent: 4981413 (1991-01-01), Elonen et al.

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