SCREW CENTRIFUGAL PUMP Russian patent published in 2009 - IPC F04D7/04 

Abstract RU 2358159 C2

FIELD: engines and pumps.

SUBSTANCE: screw centrifugal pump 1 comprises body 3 having inlet hole 3c, and impeller 2. Impeller 2 is installed inside body 3 and may rotate around axis of rotation 2d in direction of rotation 4a. Impeller 2 has blade inlet edge 2a passing along spiral. In area of inlet hole 3c guide wing 5 is installed, which protrudes into internal space of impeller 2.

EFFECT: increased reliability of pump operation by prevention of pump clogging by plaits from fibrous materials due to their grinding, weakening or cutting.

10 cl, 5 dwg

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RU 2 358 159 C2

Authors

Shtele Martin

Dates

2009-06-10Published

2004-11-02Filed