PERISTALTIC PUMP Russian patent published in 2023 - IPC F04B43/14 

FIELD: pump engineering.

SUBSTANCE: invention relates to peristaltic pumps for moving various fluids. The pump contains sealed housing 1, in the inner cavity of which elastic separating element 4 is placed, pinched by rollers 2 mounted on bushings in rotor 3. In the inner cavity of body 1, as a working chamber, there is a groove with an elliptical generatrix, parallel to the trajectory of rollers 2, the flexible piston of which is elastic separating element 4, fixed at the focal points of the ellipse and having a length greater than the focal length.

EFFECT: reducing the wear of the elastic separating element by eliminating the need for its stretching during pump operation.

3 cl, 2 dwg