Impeller structure of closed type centrifugal pump

Details Impeller structure of closed type centrifugal pump Impeller structure of closed type centrifugal pump

1995-10-19

1996-11-05

Larson, James

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Radially extending web or end plate

416203, 416223B, F04D 2924

Patent

active

055709982

ABSTRACT:
An impeller structure of a closed type centrifugal pump suitable for inelastic fluids such as an engine coolant, comprises front and rear shrouds having a driven connection with a pump drive shaft, and a series of blades provided between the front and rear shrouds for pressurizing an incoming fluid. An inner edge (17a) of a first blade of two adjacent blades is formed to be up-sloped from its inside corner to its outside corner, whereas an inner edge (17c) of a second blade of the two adjacent blades is formed to be down-sloped from its outside corner to its inside corner, so as to enhance an efficiency of the pump, suppressing occurrence of cavitation at or near the pump inlet.

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