Slurry pump shaft seal flushing

Details Slurry pump shaft seal flushing Slurry pump shaft seal flushing

1992-03-05

1993-03-23

Kwon, John T.

Rotary kinetic fluid motors or pumps

With lubricating, sealing, packing or bearing means having...

For shaft sealing, packing, lubricating or bearing means

4151701, 415175, F01D 2518

Patent

active

051958678

ABSTRACT:
A pump assembly includes a shaft driven rotary impeller operating in a housing and adapted for pumping a stream of material-carrying liquid through a pump chamber in the housing, with an annular seal assembly operative about a portion of the impeller shaft where the shaft extends through a wall of the housing. An annular seal chamber about the annular seal is adapted for receiving impeller driven seal lubricating and cooling liquid from the stream. A vane arrangement causing a sweeping flow of the liquid moves through the seal chamber with flushing effect.

REFERENCES:
patent: 2835203 (1958-05-01), Cliborn
patent: 3076412 (1963-02-01), Harker et al.
patent: 3680976 (1972-08-01), Buse
patent: 3693985 (1972-09-01), Dillner
patent: 3829238 (1974-08-01), Speck
patent: 3914072 (1975-10-01), Rowley et al.
patent: 4795167 (1989-01-01), Otsuka
patent: 4812108 (1989-03-01), Kotera

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