SEAL FOR PISTON Russian patent published in 2006 - IPC F16J15/54 

FIELD: sealing engineering.

SUBSTANCE: seal comprises the ring provided with two projections. Preliminary pressed central bend of the collar is interposed between the projections. The outer bends of the collar are pressed in radial direction to the surface to be sealed. The working edges of tabs of the collar are pressed to the sides of the socket. The ends of the tabs are provided with the horizontal grooves. Between the outer sides and periphery surfaces of the projections of the ring and similar internal surfaces of the collar are ring working spaces.

EFFECT: enhanced reliability.

5 cl, 2 dwg