HYDRO(PNEUMATIC)CYLINDER Russian patent published in 2019 - IPC F15B15/14 

FIELD: machine building.

SUBSTANCE: inside cylinder liner (12), piston unit (18) is installed in the hydro (pneumatic) cylinder (10), moving along the axial direction under the action of the supplied fluid under pressure. Piston assembly (18) is connected to one end of piston rod (20). At the other end of cylinder liner (12), stem cover (16) is mounted, in the center of which there is cylindrical holder (54), supporting piston rod (20) with the possibility of free movement. Holder (54) is fixed relative to this cover with the formation of a single structure using first rivets (60), moreover, flange (58) formed on one end of body (56) of the holder with expansion in the radial direction outward, is brought into contact with the inner surface of wall (16b) of stem cover (16).

EFFECT: simplified assembly and reduced size.

7 cl, 8 dwg