ES295533U - Volumetric proportional volumetric injector (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Injector-proportional volumetric doser, which is characterized to be essentially constituted by a chamber or cylinder with two sections of different diameter, within which a bundle or piston is moved with two sectors also of different diameters, adjusted in the two sections of the cylinder and with the corresponding gaskets of determination between both sectors a central chamber that establishes communication with the two sections indicated of the cylinder, whose central chamber has communication with a duct of output of liquid to the outside, as much as the internal extreme of the section of less diameter of the cylinder has another duct for the only feeding of the driving liquid, the body of the piston being through three ways, one of which formes an axial duct that disembones by its extremes in the respective sections of the cylinder, moving to sliding inside this duct the slider of a do valve s positions, whereas the other two ways are constituted by paths that come from points situated ahead and through the slider and communicate the duct of the same with the section of largest diameter of the cylinder, and with the chamber central surrounding the same, for output liquid, respectively, being intended, as a prolongation of the section of less diameter of such cylinder, a secondary sliding cylinder through a tubular support and connected with the outside through a valve of retention and splice clamp for a liquid introduction duct, sliding a secondary piston which is prolonged inside the tubular support and linked to the main piston within the secondary cylinder, a double movable stop is provided effect on the opposite end of the cylinder, to govern the automatic investment of the piston movement. (Machine-translation by Google Translate, not legally binding)