Centrifugal pump

Details Centrifugal pump Centrifugal pump

1998-04-28

2000-11-21

Look, Edward K.

Rotary kinetic fluid motors or pumps

Including means for handling portion separated from working...

415 88, 415 89, 415146, 417297, F04D 114

Patent

active

061493848

ABSTRACT:
A centrifugal pump has a casing, an overhung-mounted rotor in the casing having a feed chamber, which centrifugally accelerates the liquid flowing centrally to it, and a discharge chamber positioned axially behind it and connected to the feed chamber in the vicinity of the inner circumference of the rotor, as well as a scoop pipe guided centrally into the discharge chamber close to the inner circumference thereof and by means of which the liquid is discharged. For the discharge of liquids from a vacuum chamber, the discharge chamber is connected by means of a line centrally introduced into it to the gas phase of the vacuum chamber, so that the liquid flowing in via the feed chamber forms on its inner circumference a liquid ring, into which is immersed the feed end of the scoop pipe, and that on the drain side the scoop pipe is closed by an automatically closing valve, which opens under the operating pressure.

REFERENCES:
patent: 3999882 (1976-12-01), Purton
patent: 4036427 (1977-07-01), Erickson et al.
patent: 4044943 (1977-08-01), Brown et al.
patent: 4183713 (1980-01-01), Erickson et al.
patent: 4279571 (1981-07-01), Erickson
patent: 4946349 (1990-08-01), Manabe et al.

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