RO100140A2 - Fluids transfer device - Google Patents

Abstract

The invention relates to a device for the transfer of fluids between tubes assembled with a tubular or solid rotating axle and some stationary tube within a hydraulic or pneumatic manipulator, for example. According to the invention, the device consists of several modules, each of them containing an outer tubular body, in which are cut a circular and a radial channel, communicating among them; the outer tube is surrounding an inner tubular body which has a radial channel that communicates with the circular channel, as well as some short vertical channels -communicating with the already mentioned radial channel- and, respectively, long vertical, cut on the whole height of the inner tubular body; the outer tubular body is maintained in working position by a lower circular shoulder of the inner tubular body and respectively, an elastic ring placed in an outer circular housing of the inner tubular body; between the two bodies, on each side of the circular channel, there are some ring seals; at the long vertical channel, inside the inner tubular body, is cut a lower space in which is mounted a ring seal; the inner tubular body is provided with a short upper collar and, respectively, with a circular lower clearance; on to the inner tubular body of the last module is mounted a lid, with some short vertical channels that communicate with one of each of the radial channels, as well as some spaces with ring seals; fastening of the inner tubular bodies of two adjacent modules is done with some screws, and fastening of the lid to the inner tubular body is done with some other screws; the connection between the rotating axle and the adjacent inner tubular body is done through a sleeve with a lower flange that is in contact with the circular shoulder, the fastening between the sleeve and the inner tubular body being done with some screws.