Centrifugal slurry pump

Details Centrifugal slurry pump Centrifugal slurry pump

2005-07-26

2005-07-26

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

Method of operation

C415S206000, C415S914000, C416S18600A

Reexamination Certificate

active

06921242

ABSTRACT:
An apparatus and method for a slurry pump having improved erosion characteristics. The pump comprises a rotatable impeller having at least one impeller vane, an impeller shroud having an inlet for conveying slurry to the impeller and an outlet for discharging slurry accelerated by the impeller, and a pump housing having a side wall with a recess therein, said recess being deep enough to therein matingly receive said impeller shroud outlet so as to form a joint surface producing a sufficient impingement angle between the impeller shroud outlet and the pump housing side wall to substantially reduce erosion thereon by the accelerated slurry.

REFERENCES:
patent: 1763595 (1930-06-01), Paatsch
patent: 1849127 (1932-03-01), Wood
patent: 2220669 (1940-11-01), Allen
patent: 3295456 (1967-01-01), Warren
patent: 3680976 (1972-08-01), Buse
patent: 3692422 (1972-09-01), Girardier
patent: 4239453 (1980-12-01), Hergt et al.
patent: 4402648 (1983-09-01), Kretschmer
patent: 4832565 (1989-05-01), Dussourd
patent: 5513954 (1996-05-01), Bourgeois
patent: 5516261 (1996-05-01), Zelder
patent: WO 8907715 (1989-08-01), None

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