Self-priming chemical pump

Details Self-priming chemical pump Self-priming chemical pump

1995-01-30

1996-04-23

Kwon, John T.

Rotary kinetic fluid motors or pumps

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

Pump priming means

415 563, 415 566, F04D 900

Patent

active

055097790

ABSTRACT:
A self-priming chemical pump which comprises: a pump portion including at least an impeller and a shaft supporting the impeller; a self-priming mechanism portion including a self-priming chamber which is provided in the discharge side of a vortex chamber of the impeller so as to communicate with a discharge opening, and a suction chamber which is provided in the suction side of the vortex chamber of the impeller so as to communicate with a suction opening; a seal wall which is provided in the vicinity of the discharge side of the vortex chamber to form a slight gap along the outer circumference of the impeller; and a circulation hole which is provided in the self-priming chamber so as to be located inside the outer circumference of the impeller.

REFERENCES:
patent: 1948366 (1934-02-01), Barzen
patent: 1981025 (1934-11-01), Bird
patent: 2291760 (1942-08-01), Rupp
patent: 2627817 (1953-02-01), Mann et al.
patent: 4637778 (1987-01-01), Pollari
patent: 5154587 (1992-10-01), Mori et al.

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