High capacity slurry pump

Details High capacity slurry pump High capacity slurry pump

1998-09-02

2000-04-25

Kwon, John

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Casing having tangential inlet or outlet

4151211, F04D 700

Patent

active

060536985

ABSTRACT:
A centrifugal slurry pump including a specifically designed impeller having circumferentially spaced vanes mounted between a back disc-shaped shroud and a front open annular shroud. The vanes are thick in cross-section for wear-resistance and channels between adjacent vanes permitting a relatively large spherical objects, such as rocks which are encountered during dredging operations, to pass therethrough, the objects having a diameter of in excess of 15 inches, while maintaining an efficiency in excess of 80% and a head in excess of 30 feet. The vanes further preferably have a mixed pitch and a negative overlap with quite large channels between adjacent vanes so as to pass the large spherical objects.

REFERENCES:
patent: 398301 (1889-02-01), Willson
patent: 1633609 (1927-06-01), Schmidt
patent: 3130678 (1964-04-01), Chenault
patent: 3148464 (1964-09-01), Jones
patent: 3295455 (1967-01-01), Patay et al.
patent: 3734640 (1973-05-01), Daniel
patent: 3747475 (1973-07-01), Blum
patent: 5813833 (1998-09-01), Addie et al.

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