FLUID PRESSURE CYLINDER Russian patent published in 2017 - IPC F15B15/14 F15B15/20 

FIELD: machine engineering.

SUBSTANCE: hydraulic (pneumatic) cylinder is used to move the actuator from one position to another. Hydro (pneumatic) cylinder (10) includes a plurality of step portions (28a, 30a, 32a, 34a) of the first through fourth ranging in first castle butt connector assembly (26) of the cover (14) of the head, and a plurality of stepped portions ( 28b, 30b, 32b, 34b) from first to fourth in the second castle ranging butt connector assembly (50) of the cover (16) of the stem. Selective assembly of a cylindrical pipe (12) at any one pair of step portions (28a, 28b, 30a, 30b, 32a, 32b, 34a, 34b) of the first through fourth allows in case of use of a new cylinder tube (12), characterized in diameter together with a new piston (18) and the subsequent selective mounting of the cylindrical tube (12) by a single pair of step portions (28a, 28b, 30a, 30b, 32a, 32b, 34a, 34b) of the first through fourth enable obtaining hydraulic (pneumatic) cylinder (10) with a different channel diameter.

EFFECT: expansion of output force control range.

4 cl, 6 dwg