KOCHETOV'S DRY FRICTION DAMPER Russian patent published in 2015 - IPC F16F9/30 

FIELD: machine building.

SUBSTANCE: damper contains the housing designed as a cylinder with a bottom, where the piston is located. The piston is made as sleeve with parallel and coaxial with casing top and bottom collars. The collars are installed relatively to the internal surface of the casing with clearance. Between the collars a friction material is located. Spring rests against the bottom surface of the piston. Cavity between the piston and casing bottom is filled with friction material with higher friction coefficient. In groove of the internal cavity of the cylinder the lock ring is fixed. The lock ring via the resilient ring ins in contact with top surface of the top collar and holds the piston in initial position.

EFFECT: increased efficiency of dampening in resonance mode.

5 cl, 1 dwg