CONTACTLESS SEAL FOR SHAFT

摘要

FIELD: shaft sealing technology. SUBSTANCE: contactless seal of shaft 2 has perforate chutes 5 forming row of isolated cavities 6 located in succession on surface 4 of shaft 2. Cavities differ from one another in shape and/or volume and/or angles of position relative to axis of shaft 2. Cavities 6 may be made in form of radial cylindrical recesses 8. EFFECT: enhanced efficiency of sealing. 2 cl, 4 dwg