AIR CYLINDER Russian patent published in 2008 - IPC F15B15/14 F15B15/20 

FIELD: engines and pumps.

SUBSTANCE: air cylinder is designed to move working tools. The air cylinder incorporates a rod with a piston arranged in a built-up casing incorporating a cylindrical sleeve, a through and blind covers with holes accommodating the unions feeding a compressed air and damping throttling devices, air cylinder covers and piston are jet moulded from thermoplastic polymer material with a glass-fibre filler. The rod, unions and damping throttling devices have special grooves receiving O-rings. The throttling devices represents a bolt with a small head with through threaded bore and an annular groove made on outer thread along with a hole made at the level of the said groove perpendicular to the bolt axis.

EFFECT: simpler design, higher reliability, smaller weight and better performances.

6 cl, 11 dwg