FIELD: water supplying. SUBSTANCE: filter has main and additional water flow swirler. The additional swirler is positioned on a case and form ring nozzle with them. Sand passage is formed by edges of the ring nozzle and sleeve mounted on suction pipe for enclosing its openings. The edges are conical with top pointed to the side of the main swirler. EFFECT: improved design. 2 dwg
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Authors
Dates
1994-04-30—Published
1991-05-30—Filed