Document Type and Number:
Japanese Patent JPH0128234
Kind Code:
B2
Abstract:
In order to diminish the risk of clogging during pumping of, for instance, sewage, the vane (1) is formed with a varying thickness along its length. The speed reduction in the flow channel between the vane inlet and the vane outlet is then limited, since the channel only increases in cross-section by a predetermined limited amount towards the outlet and pressure decreases within the channel are minimised. The vane (1) can be made hollow to decrease balancing problems.
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Inventors:
MAGUNASU ERIKUSOON
Application Number:
JP5364780A
Publication Date:
June 01, 1989
Filing Date:
April 24, 1980
Export Citation:
Assignee:
ITT
International Classes:
F04D7/04; F04D29/22
Next Patent: JPH0128235