Positive displacement volumetric measuring device

摘要

PCT No. PCT/ES94/00118 Sec. 371 Date Sep. 1, 1995 Sec. 102(e) Date Sep. 1, 1995 PCT Filed Nov. 15, 1994 PCT Pub. No. WO95/14216 PCT Pub. Date May 26, 1995The system has been innovated by means of ellipses that mesh tangentially with each other, given the importance of mixing accurate amounts of liquids, or merely controlling quantities entering or leaving a reservoir. The shape of the ellipses is noteworthy in that they comprise two round parts and two flat parts, a round part of one of the ellipses meshing with a flat part of the other ellipse. The ellipses move due to a free-falling liquid passing through them, their movement or speed defining the volume of the liquid, the quantity of which is accurately measured. In order to achieve a constant accuracy, the ellipses move the drive pulley, which transmits impulses to a driven pulley through a trapezoidal belt, the driven pulley having a variable diameter to tighten the belt and maintain an accurate reading at all times. This is the innovation proposed by the POSITIVE DISPLACEMENT VOLUMETER.