INERTIA MAGNETIC-LIQUID DAMPER (VERSIONS) Russian patent published in 2015 - IPC F16F7/104 F16F9/53 

FIELD: machine building.

SUBSTANCE: inventions group relates to machine building. The damper contains a magnetic system with alternating polarity comprising the ring permanent magnets with axial magnetism and ferromagnetic pole disc rings. In the internal cylindrical cavity filled with the magnetic fluid the inertia movable element out of the magnetic conducting material is located, it is connected via the resilient elements with bottom and top covers. The magnetic system is arranged between non-magnetic disc rings, is tied up by the fixtures located in the axial holes of the top and bottom covers, and is equipped with removable shunt elements out of the ferromagnetic material installed between the pole disc rings. Outside diameters of the pole disc rings and non-magnetic disc rings are similar and exceed outside diameter of the ring permanent magnet, but are below the covers diameter. On the internal cylindrical surface of the non-magnetic disc ring a ring groove is made with installed spherical rolling bodies. The top cover is connected with rod. In the damper under the second option the shunt element is made in form of the sleeve out of the ferromagnetic material and is connected with bottom cover by means of the thread joint with possibility of axial movement.

EFFECT: increased damping effect, possibility of parameters setting of the dampening device, and exclusion of the magnetic fluid leaks.

7 cl, 4 dwg