ZEMLYAKOV'S SCREW PUMP FOR SLUSHES DRIVEN FROM HOUSEHOLD ELECTRIC DRILL Russian patent published in 2008 - IPC F04D7/00 F04D3/02 

FIELD: engines and pumps.

SUBSTANCE: screw pump incorporates screw (S) arranged in casing (C). The screw outlet double-threaded part is arranged in the casing cylindrical space, while its inlet one-threaded part extends from the casing and is enveloped by a skeleton frame and is furnished with blades (B) having the collars. The casing space is furnished, all along its length, with replaceable tubular inserts. The insert has a bore aligned with the outlet branch pipe outlet and can have thought slots parallel to its axis, or can have none. The insert end face has an annular collar. The insert second end face edge features threaded holes. The screw inlet part is furnished with fast-release blade feeder attached via the feeder plate. The screw inlet part is enveloped by section blades attached to the feeder plate edges and to the mounting ring featuring preset diameters. The opening angle of every blade varies from 5° to 65°. The blade front edges are not parallel to the rear edges. The casing outer surface accommodates a tubular transition casing with its second end furnished with the multi-lug tubular collet. The collet lug surface is provided with two collars between which a removable screw yoke is fitted. A flanged handle is rigidly fitted in the yoke screw spline. The screw shaft drive end is arranged inside the transition casing and is furnished with side flats accommodating an adapter representing an attachment with a union hexagon head, the shaft second end being clamped in the drill chuck. The drill mounting ring is enveloped by the collet lugs gripped by the yoke. One bearing handle is arranged above the casing bearings to revolve through 180°. The drill casing is enveloped by tie belt with its ends are attached to the transition casing.

EFFECT: split connection to pump of household drill as a drive, expanded pump performances, higher pump efficiency.

14 cl, 12 dwg