Sealing system for rotating component of a pump

Details Sealing system for rotating component of a pump Sealing system for rotating component of a pump

1999-03-18

2000-10-10

Denion, Thomas

Rotary expansible chamber devices

With mechanical sealing

418202, 418 15, 418102, 4182012, 418189, 277563, 277585, 277 59, 384130, 384131, 384132, 384147, 308 361, F04C 200

Patent

active

061295337

ABSTRACT:
The invention relates to a fluid-conveying machine, in particular, a pump having a component rotating in a stationary housing part inside an annular gap. The stationary housing part separates an interior having a higher product pressure from an exterior having a lower pressure. A rotating component is mounted in an external bearing which is sealed with respect to the interior via a sealing system. In order to improve the sealing, the invention provides that the annular gap is formed between two sliding bearing shells which comprise extremely hard, wear-resistant materials and, in accordance with the operating principle of a radial sliding bearing, form a first pressure-reducing stage. A feedback device, which feeds back the leakage from this first sealing stage into the conveying process of the machine, is connected downstream of the first pressure-reducing stage. A second sealing stage is arranged axially downstream of the feedback device. The second sealing stage may be constructed as a simple seal, such as a lip seal and/or a simple end face seal.

REFERENCES:
patent: 1673259 (1928-06-01), Meston et al.
patent: 2549633 (1951-04-01), Farhat
patent: 2710581 (1955-06-01), Rosaen
patent: 2758548 (1956-08-01), Rockwell
patent: 3527507 (1970-09-01), Clark et al.
patent: 3575426 (1971-04-01), Durham
patent: 3589843 (1971-06-01), Zalis
patent: 3667879 (1972-06-01), Cerpelli
patent: 3718378 (1973-02-01), Clay
patent: 4153395 (1979-05-01), O'Neill
patent: 4684335 (1987-08-01), Goodridge
patent: 5624249 (1997-04-01), Rohlfing

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