Dredge pump

Solid material comminution or disintegration – Apparatus – Including means applying fluid to material

Patent

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Details

241185A, B02C 2336

Patent

active

039715132

ABSTRACT:
Dredge pump, comprising a volute pump casing, with a lateral, round suction opening and with an outlet. In this pump casing an impeller is mounted which consists of a front plate, a back plate and two blades connecting the front plate and the back plate to each other. One of these blades, which has at least substantially the form of a circular arc at its end nearest the axis of rotation and subsequently increases in radius, forms a passage which is connected through an opening in the front plate to the suction opening of the pump casing and which is passed in the direction of its lateral outlet by all dredged material which is to be pumped. The passage formed by the first blade increases gradually in width from the central inlet towards the lateral outlet, said central inlet being bounded by the part of the blade having at least substantially the form of a circular arc. The front plate and the back plate have a cutting edge along at least the greater part of their periphery, this cutting edge being located in their outer surface.

REFERENCES:
patent: 2027015 (1936-01-01), Bell
patent: 2245035 (1941-06-01), Hartman
patent: 2265758 (1941-12-01), Klossen
patent: 2975714 (1961-03-01), Nechine

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