FIELD: engines and pumps.
SUBSTANCE: propose pump incorporates a filling vessel, an inlet hydraulic labyrinth made up of an ascending and descending sections. The labyrinth ridge has a channel intended for stalling the fluid backflow from the pump with the impeller cutoff and communicating the labyrinth with atmosphere. The labyrinth ridge exceeds the fluid level in the pump chambers.
EFFECT: ruling out clogging of labyrinth channel, higher pump volumetric capacity and decreased possibility of filling vessel emptying in pump OFF-state.
5 cl, 2 dwg
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