Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Dynamically created seal
Patent
1991-09-23
1993-05-11
Kwon, John T.
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
Dynamically created seal
4151701, F04D 2908
Patent
active
052096351
ABSTRACT:
An impeller for use in a centrifugal pump, the impeller including a plurality of vanes disposed intermediate a pair of spaced apart side walls, at least one of the side walls having a substantially smooth generally planar outer surface and a plurality of channels recessed into the surface, each of the channels spiralling progressively outwardly and rearwardly relative to an intended direction of rotation, and having a cross sectional flow area reducing substantially uniformly from a central region towards a respective rearwardly directed peripheral discharge port.
REFERENCES:
patent: 1556657 (1925-10-01), Wilfley
patent: 3146722 (1964-09-01), Warman
patent: 3535051 (1970-10-01), Turner
patent: 3881840 (1975-05-01), Bunjes
patent: 4527947 (1985-07-01), Elliott
patent: 4664592 (1987-05-01), Grzina
patent: 4854820 (1989-08-01), Zolotar et al.
Eaton Robert
Stewart Ian
Vella Maximillian A.
Kwon John T.
M.I.M. Holdings Limited
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