HYDRAULIC (PNEUMATIC) DEVICE AND METHOD FOR PRODUCTION THEREOF Russian patent published in 2020 - IPC F15B15/14 

FIELD: hydraulic structures.

SUBSTANCE: invention relates to a hydraulic (pneumatic) cylinder. At one end (12a) of cartridge (12) of cylinder, which is part of hydraulic (pneumatic) cylinder (10), formed is first stepped section (24), diameter of which exceeds diameter of chamber (20) of cylinder. Disc-like cover (14) of head is inserted inside cylinder chamber (20). Deformed section (28) is formed by pressing and plastic deformation of this one end (12a) by means of stitching device (50), due to which this head cover (14) is fixed inside this first stepped section (24).

EFFECT: obtained design allows to ensure sealing efficiency between sleeve (12) of cylinder and cover (14) of head and higher reliability of attachment of this cover (14) of head, as well as avoiding the need for a locking means used to secure head cover (14) and in the sealing means, and thus enabling the number of components to be reduced.

7 cl, 7 dwg