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

FIELD: machine building.

SUBSTANCE: hydro(pneumatic)cylinder is intended for straight movement of working element from one position to another. Cylindrical struts (24a, 24b) are connected in hydro(pneumatic)cylinder (10) to both ends of cylinder sleeve (12), locking rings (50) are installed inside of which with possibility of free assembly and dismantling, providing locking of cover (14) of head and cover (16) of the rod, which are located in sleeve (12) of cylinder. On outer circumferential surfaces of cover (14) of head and cover (16) of rod there are correspondingly recesses (36, 58) recessed radial direction inward, into which respectively first and second ports (38, 60) for fluid medium, through which are made fluid feed and discharge under pressure.

EFFECT: reduced dimensions of hydro(pneumatic)cylinder.

16 cl, 20 dwg