DRIVE PNEUMATIC CYLINDER Russian patent published in 2007 - IPC F15B15/14 

FIELD: piston-type pneumatic drive units, namely designs of pneumatic cylinders.

SUBSTANCE: pneumatic cylinder includes sleeve, rod cavity, piston cavity mutually divided by piston with Г-shaped cross section collars arranged in its turnings; spacing rubber round cross section ring placed in groove of piston and pressing sealing petals of Г-shaped cross section collar to sleeve. Said groove has curvilinear convex base having slopes to sides of lateral walls and ridge formed in middle of groove. Said ridge divides two spacing rubber round cross section rings arranged in said groove and pressing respectively sealing petals of Г-shaped cross section collars to sleeve.

EFFECT: enhanced efficiency and operational reliability of pneumatic cylinder.

3 dwg