Rotary kinetic fluid motors or pumps – With lubricating – sealing – packing or bearing means having... – For shaft sealing – packing – lubricating or bearing means
Patent
1999-01-29
2000-08-08
Look, Edward K.
Rotary kinetic fluid motors or pumps
With lubricating, sealing, packing or bearing means having...
For shaft sealing, packing, lubricating or bearing means
415 582, 415 584, 4151682, 415176, 415204, 415206, 415231, F04D 2906
Patent
active
060992433
ABSTRACT:
A centrifugal pump of the type in which fluid enters radially includes a debris blocking shield over a space around a shaft seal with a channel to supply energized fluid to near the center of the pump impeller. Apertures in the impeller then pass the fluid longitudinally through the impeller and the seal space covered by the shield, with a shield gap for the return of the fluid from the seal space into the main stream.
REFERENCES:
patent: 2101960 (1937-12-01), Sjostrom
patent: 2671406 (1954-03-01), Waller
patent: 2859698 (1958-11-01), Buehler
patent: 5713719 (1998-02-01), Fiore et al.
patent: 5827041 (1998-10-01), Charhut
Caterpillar Inc.
Look Edward K.
Nguyen Ninh
Telfer Gordon H.
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