ES303720A1 - Improvements in the construction of autoaspirant pumps (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improvements in the construction of self-priming pumps, characterized in that a pump is made up of a casing with a cylindrical central chamber, inside which are arranged in peripheral distribution, according to the axial direction of the same chamber, rotating rollers whose axes are related to each other by means of attachment, in order to be rotatably driven by a central drive shaft, an elastic tubular casing being arranged which adapts to the contour of the roller assembly, so that between the casing and the wall of the chamber are formed spaces that move according to the rotation of that set, while the envelope has a longitudinal area of solidarity to the housing, in order to separate at all times the spaces immediately to said area intended to communicate with paths of entry and fluid output through the housing, all in such a way that, when the rotation occurs On the said set of rollers, on the occasion of originating a space in front of the inlet mouth there is produced a depression that gives rise to a suction of fluid towards the pump, whose fluid is dragged by the space around the chamber until it is placed in front of the exit mouth, through which the pressurized fluid is caused by the progressive reduction of the volume of the space in question, whose process is happening correlatively for each of the available spaces. (Machine-translation by Google Translate, not legally binding)