DRAFT TUBE OF HYDROELECTRIC UNIT Russian patent published in 1995 - IPC

Abstract RU 2033496 C1

FIELD: hydraulic power engineering. SUBSTANCE: draft tube includes cone part 1, elbow 2 and offtake diffuser 3. To reduce hydraulic losses, draft tube is made with additional offtake diffuser 4 located either, symmetrical to main offtake diffuser, or at angle of 0 < α ≅ 180^° deg. to the axis of main diffuser 3. Besides, draft tube may be made with two additional offtake diffusers. EFFECT: higher efficiency. 2 cl, 5 dwg

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RU 2 033 496 C1

Authors

Fink A.K.

Kolesnichenko A.I.

Gubin M.F.

Dates

1995-04-20—Published

1991-06-28—Filed