Pump drive shaft sealing arrangement

Details Pump drive shaft sealing arrangement Pump drive shaft sealing arrangement

1974-10-18

1976-08-24

Croyle, Carlton R.

Rotary kinetic fluid motors or pumps

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

415113, 415170A, 277 33, 277 99, F04D 2908, F16K 4100

Patent

active

039763927

ABSTRACT:
A circulation pump having a comparatively slender drive shaft is provided with an improved axial sealing arrangement to prevent the leakage of circulating liquid through the bore in the pump housing wall in which the drive shaft is supported. The sealing arrangement comprises a pair of bushing-like bodies disposed around the drive shaft between the drive shaft and the wall of the bore, and a pair of pressure elements disposed around the drive shaft and movable in the direction of the shaft abut the sealing elements and are pressed into engagement with the sealing elements by spring means located outside the bore.

REFERENCES:
patent: 1007448 (1911-10-01), Jensen
patent: 1310324 (1919-07-01), Cluley
patent: 1845363 (1932-02-01), Thompson
patent: 2769390 (1956-11-01), Heimbuch
patent: 3796507 (1974-03-01), Smykal et al.

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