Guide apparatus for centrifugal pumps

Details Guide apparatus for centrifugal pumps Guide apparatus for centrifugal pumps

1995-12-07

1997-06-03

Larson, James

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Vane or deflector

4152111, F04D 2944

Patent

active

056347693

ABSTRACT:
A guide apparatus for use with centrifugal pumps which transport fluids that contain foreign bodies. The guide apparatus includes a plurality of guide blades. Each of the guide blades has a predetermined width. Each guide blade has a rounded guide-blade protrusion which has a rounding radius. A ratio of the rounding radius to the width of the guide blade ranges from 0.15 to 0.5. Each of the guide blades, in an inlet area of the guide apparatus, has an approach angle. The approach angle corresponds to an angle between a direction of a tangent to a curve of the path of a fluid particle in the transported liquid and a tangent to a circle about a rotational axis of the pump. Each of the guide blades outlet edge is disposed steeper than the guide blade inlet edge by such an amount that the flow of fluid substantially always approaches the guide blade in a manner so as to represent a partial load.

REFERENCES:
patent: 3154019 (1964-10-01), Hoyt
patent: 3945771 (1976-03-01), Arakawa

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