Self-priming centrifugal pump

Details Self-priming centrifugal pump Self-priming centrifugal pump

1980-05-27

1982-10-26

Casaregola, Louis J.

Rotary kinetic fluid motors or pumps

With means for re-entry of working fluid to blade set

Cross flow runner

F04D 902

Patent

active

043559506

ABSTRACT:
A centrifugal pump having a discharge at its upper end is self-primed under the combined effect of gravity and suction. The suction is created by a discontinuity of flow in the pumping chamber at a recirculation passage. The passage is sufficiently large so that it deaerates priming liquid while providing sufficient liquid to prevent a short circuit of gas from the outlet to the inlet.

REFERENCES:
patent: 2428487 (1947-10-01), Fernstrum
patent: 2477079 (1949-07-01), Mueller
patent: 2944489 (1960-07-01), Longenecker
patent: 2956505 (1960-10-01), Jekat et al.
patent: 3685919 (1972-08-01), Speck et al.
patent: 4057361 (1977-11-01), Renaud
patent: 4129402 (1978-12-01), Eberhardt

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