Adjustable stator for eccentre worm drive pumps - fitted with rubber stator with outer coating made from steel

摘要

Adjustable stator for eccentary worm gear pumps which consists of rubber and has an outer coating fitted with longitudinal and oblique grooves the diameter of which may be made smaller by outside tensioning devices. The outer coating is e.g. made from steel and the stays (6) are located at the base of the grooves remain deformed by bending through the tensioning of the stator. The grooves (5) are positioned on the outside of the coating (3), and the coating is cylindrically smooth with the stays in their original not deformed state.