Centrifugal pump

Details Centrifugal pump Centrifugal pump

1986-03-14

1987-11-24

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Runner has spirally arranged blade or fluid passage

Extending along runner axis

415215, 416176, F04D 1706

Patent

active

047085851

ABSTRACT:
A centrifugal pump including a stationary guide vane secured to a casing, and a centrifugal impeller arranged for rotation in the casing in a position adjacent the stationary guide vane. The centrifugal impeller has at least one blade wound in convolutions on a peripheral surface of a hub and having a blade inlet surface substantially perpendicular to the axis of rotation of the impeller and a fluid flow entrance surface substantially parallel to the blade inlet surface. The blade is wound in a suitable number of convolutions extending from an inlet to an outlet on the hub and is forwardly inclined toward the axis of rotation of the impeller at an increasingly greater angle in going from the inlet toward the outlet, so as to produce centrifugal forces at the outlet. The centrifugal impeller has a high head which has been beyond the power of axial impellers to achieve.

REFERENCES:
patent: 2003666 (1935-06-01), Moneypenny
patent: 2600372 (1952-06-01), Milliken et al.
patent: 3068799 (1962-12-01), Lock
patent: 3299820 (1967-01-01), Campbell
patent: 3442220 (1969-05-01), Mottram et al.
patent: 3446016 (1969-05-01), Boissevain et al.
patent: 3522997 (1970-08-01), Rylewski
patent: 3692422 (1972-09-01), Girardier

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