SMOKE SUCKER IMPELLER

摘要

FIELD: power engineering.SUBSTANCE: invention relates to industrial equipment. Smoke sucker impeller consists of central disc, two covers, hub blades and drive shaft. It differs from known designs in that hollow different-OD and ID rings are secured at sides of covers while ball rolling bodies are fitted therein. Spherical rolling bodies are fitted between the ring and rim edge.EFFECT: ruled out unbalance of impellers.3 dwg