ANGULAR REINFORCED SLEEVE-COMPENSATOR Russian patent published in 2010 - IPC F16L11/08 

FIELD: construction.

SUBSTANCE: sleeve-compensator is made in the form of arc at the angle from 0 to 180° and comprises sealing rubber layer, frame of power layers of rubberised cord/cables/ropes with circumferential direction of threads, auxiliary layers with longitudinal direction of threads/cables/ropes covering all perimeter of sleeve-compensator cross section. Sleeve comprises discrete power layers with longitudinal direction of threads/cables/ropes arranged only at part of perimeter of sleeve-compensator cross section along external and internal radiuses of sleeve-compensator bend, for instance in areas of sectors with angles from 60 to 75°, and preventing sleeve unbending (increase in radius of its bend) and change of cross section profile under action of circumferential and axial forces that occur as a result of inner pressure in sleeve-compensator as liquid is transported in pipeline.

EFFECT: invention improves sleeve reliability.

5 cl, 6 dwg