Centrifugal pump with means for precluding airlock

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

F - Mech Eng,Light,Heat,Weapons

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F04D 9/02 (2006.01) F04D 9/00 (2006.01) F04D 29/22 (2006.01)

Patent

CA 1076885

ABSTRACT OF THE DISCLOSURE 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.

283411

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