HYDRAULIC DAMPER Russian patent published in 2011 - IPC F16F5/00 F16F9/16 

FIELD: machine building.

SUBSTANCE: damper consists of base and of guiding and damping devices. A rod is rigidly fixed in a bottom of the cylinder sleeve forming a pressure tight circular cavity. The bottom of the cylinder sleeve is secured in a bush rigidly jointed to the base of a protected object. A spring in the circular cavity with its lower end rests against the bottom, while with its upper end - against a piston. The piston corresponds to a disk with a throttling orifice relative to a rod. A cover moveable relative to the rod is positioned in an upper section of the rod. The cover consists of a circular flange with a packing and a bush rigidly tied with the flange. The bush envelops external surface of the cylinder sleeve by means of the packing. A spring, an upper end of which rests against the cover, while a lower one - against the piston, is located coaxially to the rod. A bearing element of the vibration insulated object is fixed on the cover.

EFFECT: raised efficiency of vibration insulation.

1 dwg