KOCHETOV DRY FRICTION DAMPER Russian patent published in 2016 - IPC F16F9/30 

FIELD: machine building.

SUBSTANCE: damper comprises cylinder with bottom, in which there is piston. Piston consists of parallel disks, rigidly connected to each other by a rod. Disks are installed with reference to internal surface of the housing with a clearance, and between them the frictional material is placed. Spring loads the lower disk. Cavity between the piston and bottom of the damper housing is filled with a frictional material, e.g., mesh texture elements. Upper disk loads the bottom surface of the disk-type elastic element. Power closure of elastic element with a damper is ensured by means of the spring located in the lower part of the piston. For fixing of the piston in the damper housing the lock ring fixed in the groove of the internal surface of the housing cylinder is provisioned. Lock element contacts to the upper disk and keeps the piston in an initial condition. Clearance of piston disks relative to inner cylindrical surface of housing is less than size of separate fractions of friction material.

EFFECT: improved efficiency in resonant mode of vibration isolation.

4 cl, 1 dwg