WORKING WHEEL OF CENTRIFUGAL PUMP Russian patent published in 1996 - IPC

FIELD: fan engineering. SUBSTANCE: inlet device of the working wheel consists of housing that has two symmetrical openings, fairing, and rotatable gate in the form of an unclosed ring. Coaxial surfaces of the housing and fairing form a ring conical passageway. The width of the slot in the pipes is constant being 0.15 of the inner diameter of the pipe or alternative being equal to 0.20 of the inner diameter at the side of the carrying disk and 0.05 of the inner diameter at the covering disk. EFFECT: enhanced reliability. 3 cl, 3 dwg