Title:
IMPROVED VELOCITY PROFILE IMPELLER VANE
Document Type and Number:
WIPO Patent Application WO2005097593
Kind Code:
A3
Abstract:
In accordance with the present invention, an impeller for use in a centrifugal pump has at least one vane the radially outer terminal end of which is configured to produce a flow velocity profile that controls and reduces the wear caused by slurry fluid being expelled from the impeller on the inner surface of the pump casing. The impeller vanes of the present invention are generally configured with a radially outwardly extending portion, as compared with the conventional straight or concave edge of an impeller vane. The outwardly extending portion may vary in shape, but is selected to produce a flow velocity profile that reduces wear in the pump casing.
Inventors:
WALKER CRAIG I (AU)
ROUDNEV ALEKSANDER S (US)
ROUDNEV ALEKSANDER S (US)
Application Number:
PCT/US2005/010830
Publication Date:
January 19, 2006
Filing Date:
March 30, 2005
Export Citation:
Assignee:
WEIR SLURRY GROUP INC (US)
WALKER CRAIG I (AU)
ROUDNEV ALEKSANDER S (US)
WALKER CRAIG I (AU)
ROUDNEV ALEKSANDER S (US)
International Classes:
B63H1/16; F04D29/22; F04D29/24; (IPC1-7): B63H1/16; B64C11/00; B64C27/20
Foreign References:
| US5628616A | 1997-05-13 | |||
| US6877955B2 | 2005-04-12 | |||
| US3221398A | 1965-12-07 | |||
| US3904306A | 1975-09-09 |
Other References:
See also references of EP 1732805A4
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