Centrifugal pumps

Details Centrifugal pumps Centrifugal pumps

1981-02-11

1983-04-19

Coe, Philip R.

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

277 67, 415170B, 415174, F01D 1108, F03B 1100

Patent

active

043804160

ABSTRACT:
A centrifugal pump, of the type comprising a body, a shaft rotatable in the body via a bearing, an impeller fixed on the shaft and, between the impeller and the bearing, a mechanical seal assembly comprising a pair of engaging slide rings and an inner sleeve made of elastomeric material, fitted on the shaft, the said sleeve comprising a portion adjacent the impeller on which is fixed one of the slide rings and, at the end on the bearing side, a radial flare for holding the seal assembly in the assembled state prior to its mounting, said sleeve being extended axially, beyond said radial flare, by a lip member arranged to rub on the adjacent surface of the bearing.

REFERENCES:
patent: 2439917 (1948-04-01), Anderson

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