Axial thrust balancing device for pumps

Details Axial thrust balancing device for pumps Axial thrust balancing device for pumps

1981-02-13

1985-09-03

Yuen, Henry C.

Rotary kinetic fluid motors or pumps

With shaft connected fluid force subjected thrust balancing...

415105, F01D 304

Patent

active

045389608

ABSTRACT:
This invention relates to an axial thrust balancing device for pumps which cancels an axial thrust caused by impellers by utilizing a discharge water pressure. In the device, there is provided a small axial gap between a low pressure sidewall of a balancing drum tightly fitted over a shaft of impellers and a flange-like end wall extending inwardly from a stationary wall along the low pressure sidewall of said balancing drum. On application of the device to a vertical pump, in particular, the balancing drum is prevented from being in contact with the end wall during suspension of operation.

REFERENCES:
patent: 898462 (1908-09-01), Griessmann
patent: 907343 (1908-12-01), Griessman et al.
patent: 933345 (1909-09-01), Scheurmann
patent: 1045019 (1912-11-01), Griessmann et al.
patent: 3123338 (1964-03-01), Borden

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