PERISTALTIC PUMP Russian patent published in 2019 - IPC F04B43/12 

FIELD: pumps.

SUBSTANCE: invention relates to pump engineering, particularly, to peristaltic pumps used particularly in medicine and food industry. Pump 10 comprises drive rotor 14 having at least one compressing element 15 and cylindrical stator 12 rotatable in which rotor 14 is made. Flexible tube 22 having inlet side 24 and outlet side 26 extends circumferentially around cylindrical stator 12 at inner wall 12a. Pump 10 comprises radially deformable ring 28 arranged between rotor 14 and flexible tube 22 extending circumferentially. Ring 28 is deformed by compression element 15 when rotor 14 rotates, and thereby flexible tube 22 is pressed against inner wall 12a of cylindrical stator 12 for fluid transfer along flexible tube 22. Radially deformable ring 28 includes ring anchor 30, which prevents rotation of radially deformed ring 28 during rotation of rotor 14.

EFFECT: prevented premature wear of flexible tube.

16 cl, 12 dwg