Patent ID: 6042340
Filing Date: 2000-03-28
Classification: B01F,F04F

Abstract:
A fluid handling device, the device having:an elongate tubular body which defines a through bore between an inlet end and an outlet end of the body;first and second annular chambers, each of which extends substantially concentrically around the bore, the first chamber being in communication with the bore via a first set of passages spaced circumferentially around the bore, and the second chamber being in communication with the bore via a second set of passages spaced circumferentially around the bore, the passages of each set communicating with the bore at a respective axial location intermediate the ends of the bore, with the location for the second set between the location for the first set and the outlet end of the housing, and each passage of each set having an opening into the bore which faces towards the outlet end of the body;a first inlet port by which the first chamber is connectable to a source of pressurised fluid; anda second inlet port by which the second chamber is connectable to a source of pressurised fluid;wherein the passages of each set are both:(i) inclined radially towards the axis of the bore, and(ii) inclined transversely with respect to the axis of the bore, along respective lines whereby the lines for passages of the first set converge along the bore towards the outlet end to a first region, and the lines for passages of the second set converge to a second region beyond the first region. and wherein the passages of the second set are inclined transversely with respect to the axis of the bore in the opposite direction to the direction of transverse inclination of the passages of the first set.