FIELD: mechanical engineering. SUBSTANCE: directional jets formed by each nozzle have the form of parallel horizontal rows which are displaced one from another. Their number N is defined by the (N=(D/d - relation with D being diameter of inlet holes provided in the nozzle (or of jets at their inlets). d is diameter of outlet holes of the nozzle (or diameter of jets at the hole outlet). The axes of jets belonging to every subsequent row are displaced from those of the preceding row for d with being N ≥ 3 . EFFECT: increased efficiency of washing. 2 dwg
