Centrifugal pump seal

Details Centrifugal pump seal Centrifugal pump seal

1984-10-25

1986-11-11

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

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

For shaft sealing, packing, lubricating or bearing means

415110, 415169R, 415170A, F01D 1100

Patent

active

046219757

ABSTRACT:
A centrifugal pump seal for providing a liquid seal to a vertically oriented pump drive shaft, including a bellows seal fixedly attached to the drive shaft and having a rotatable sealing ring as a part thereof, mated to a fixed sealing ring held in a seal housing, and a seal chamber surrounding the bellows seal and shaft, for containing pump liquid, wherein the fixed and rotatable seal rings and a portion of the seal housing are exposed to liquid contact for cooling, including a recirculating bleed line for continuously replenishing the liquid in the seal chamber.

REFERENCES:
patent: 1820100 (1931-08-01), Thompson
patent: 2237027 (1941-04-01), Dorer
patent: 2375085 (1945-05-01), Curtis
patent: 2600879 (1952-06-01), Karlberg
patent: 2770477 (1956-11-01), Rankin
patent: 3194492 (1965-07-01), Koffinke et al.
patent: 3340813 (1967-09-01), Keyes
patent: 3515394 (1970-06-01), Stevens
patent: 3715169 (1973-02-01), Molis
patent: 3746350 (1973-07-01), Mayer et al.
patent: 3776560 (1973-12-01), Wentworth, Jr.
patent: 4453722 (1984-06-01), Swanson
"Crown Imperial and Imperial Centrifugal Pump" 1983, Graco Inc.
"Mechanical Seal 676" Sealol, Inc.

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