Shaft sealing arrangement having fluid flushing means

Details Shaft sealing arrangement having fluid flushing means Shaft sealing arrangement having fluid flushing means

1994-04-28

1996-07-30

Cummings, Scott W.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 71, 277 85, 277 74, F16J 15447

Patent

active

055404499

ABSTRACT:
Apparatus for providing a mechanical planar seal, as for example for use with a centrifugal pump having a rotating shaft, includes a primary seal formed of a movable first part rotatable with the shaft and a fixed second part or seat, a secondary seal axially spaced along the shaft from the primary seal, an inlet for flushing liquid, an outlet for the flushing liquid and for pump medium that leaks through the primary seal, a collection chamber defined between the primary and secondary seals for flushing liquid and leaking pump medium, and a drain passage connecting the collection chamber and outlet. The collection chamber is divided into at least two portions in liquid communication with each other and with the drain passage by at least one predeterminately-configured wall so as to assure that the flushing liquid is maintained between the primary and secondary seals for an extended period of time for advantageously efficient use of the flushing liquid in lubrication and cooling of the primary seal.

REFERENCES:
patent: 3218085 (1965-11-01), Grace
patent: 3895811 (1975-07-01), Richard, Jr. et al.
patent: 3943717 (1976-03-01), Schexnayder
patent: 4619458 (1986-10-01), Mitumaru
patent: 4992023 (1991-02-01), Baker et al.

Affiliated with

Also associated with

Rating

Shaft sealing arrangement having fluid flushing means does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Shaft sealing arrangement having fluid flushing means, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shaft sealing arrangement having fluid flushing means will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1653578