HYDRO (PNEUMO) CYLINDER Russian patent published in 2017 - IPC F15B15/14 F15B15/20 

FIELD: machine engineering.

SUBSTANCE: hydraulic (pneumatic) cylinder (10) on the first annular projection (34) of the cover (14) of the head to be freely mounting and dismounting established first positioning ring (26) and the second annular projection (48) of the cover (16) of the stem a freely mounting and dismounting the second set positioning ring (28). From the outer circumferential surfaces of the first and second positioning rings (26, 28) inserted into the opposite end portions of the cylindrical pipe (12). Wherein the first and second positioning rings (26, 28) allow positioning and supporting both end portions of the cylindrical pipe (12).

EFFECT: by preparing the new cylindrical pipe with a different diameter and new first and second positioning rings and mounting new cylindrical pipe through the new first and second positioning rings mounted on the first and second annular ridges, it is possible to obtain mentioned cylinder with a different diameter of the cylinder bore.

5 cl, 7 dwg