Centrifugal pump with means for precluding airlock

Details Centrifugal pump with means for precluding airlock Centrifugal pump with means for precluding airlock

1976-09-07

1978-05-09

Husar, C. J.

Textiles: fluid treating apparatus

Machines

Combined

415143, 415213R, 415215, 416188, F01D 514, F03B 312, D06F 3500

Patent

active

040879941

ABSTRACT:
A centrifugal pump having an impeller with a fingerlike projection on each blade extending radially outward from the impeller body into the outer annulus of the pumping chamber. These projections cut through the liquid that has been centrifuged to the outer annulus causing a turbulence which draws a portion of the liquid into the body of the impeller for mixing with trapped air. This mixing action causes the air to be centrifuged with the liquid and alleviates air locking in the pump and is especially valuable in a laundry washing machine where, in the last portion of the liquid extraction cycle, air and soap bubbles are likely to be included in the liquid.

REFERENCES:
patent: 2566795 (1951-09-01), Egger
patent: 2850984 (1958-09-01), Shiley et al.
patent: 2961862 (1960-11-01), Smith

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