| 摘要 |
<p>A mixing valve for sanitary operations comprises a valve seat disk having two inlet passage openings and a controlling disk held against the valve seat disk adjustable by a handle, so that the relative proportions of the fluids mixed are controllable by rotation of the controlling disk and the flow rate of the mixed fluid is controlled by a displacement of the controlling disk, wherein the two inlet passage openings for the fluids mixed are formed symmetrically positioned in one half of the valve seat disk, each of the two inlet passage openings being formed as an arcuate segment positioned on a circular arc, and wherein a transfer passage formed in the controlling disk is brought into overlap with the inlet passage openings adjacent an arc shaped front edge of the transfer passage. To improve the control of the proportions of the fluids mixed the inner sides of each of the inlet passage openings have a constriction extending a distance of substantially one-third of the length of the arcuate segment corresponding to each of the inlet passage openings, and the constriction is positioned a distance of substantially 0.4 of the length of the arcuate segment from the front side of the inlet passage openings adjacent the symmetry axis of the valve seat disk.</p> |
