Pumps – One fluid pumped by contact or entrainment with another – Contact or entrainment within rotary impeller
Patent
1994-09-12
1996-04-23
Bertsch, Richard A.
Pumps
One fluid pumped by contact or entrainment with another
Contact or entrainment within rotary impeller
417DIG1, 29888025, F04C 1900, F04B 5316
Patent
active
055097898
ABSTRACT:
Single-stage liquid ring gas pump which can be flanged to a drive unit. The suction and delivery connections are disposed on a connection casing (3) which is to be connected to the drive unit. On the side of the connection casing remote from the drive are disposed a plate cam (4) and a working chamber casing (5) together with the impeller (14) rotating in the latter. The impeller sealingly cooperates on its open end face with the plate cam and on its largely closed end face (19) with an end wall (7) of the working chamber casing (5). The working chamber casing is in the form of a deep-drawn sheet metal part and has no medium connections. For the purpose of connection to the connection casing or the plate cam, it is provided with a radial connection flange (6). The transition from the cylindrical part to the connection flange (6) of the working chamber casing (5) is rounded on the inside such that the gap remaining between this rounding and the plate cam remains below a particular size. Its incircle should not be larger than 3.5% of the diameter of the impeller.
REFERENCES:
patent: 3702745 (1972-11-01), Segebrecht
patent: 3849024 (1974-11-01), Masai et al.
patent: 4278409 (1981-07-01), Eiermann
patent: 4674960 (1987-06-01), Rando et al.
Domagalla Klaus
Segebrecht Udo
Bertsch Richard A.
McAndrews, Jr. Roland G.
SIHI GmbH & Co KG
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