Self-priming centrifugal pump

Details Self-priming centrifugal pump Self-priming centrifugal pump

1976-12-13

1977-07-12

Croyle, Carlton R.

Pumps

Diverse pumps

Including rotary nonexpansible chamber type

417203, F04D 900

Patent

active

040351041

ABSTRACT:
A self-priming centrifugal pump including a priming piston disposed in a priming chamber which communicates with the pumping chamber to receive fluid therefrom. During priming, the priming piston is driven by the impeller shaft through an eccentric to discharge such fluid from the priming chamber. During normal operation of the pump, that is after the pump has been successfully primed, the priming piston is retained out of driven relationship with the eccentric by fluid supplied from the pumping chamber, thereby preventing the priming piston from taking power from the pump during such normal operation.

REFERENCES:
patent: 862867 (1907-08-01), Eggelston
patent: 2472802 (1949-06-01), Bentley
patent: 2563912 (1951-08-01), Belinkin
patent: 3451290 (1969-06-01), Wildhaber
patent: 3578880 (1971-05-01), Cygnor
patent: 3644061 (1972-02-01), McFarlin
patent: 3811797 (1974-05-01), Lewis

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