HYDRAULIC DAMPER Russian patent published in 2008 - IPC F16F9/14 F16F5/00 

FIELD: transportation.

SUBSTANCE: hydraulic damper comprises operating cylinder and installed in it movably piston with valves. Piston and a pair of ring-shaped retainers are rigidly fixed on rod. In the space between retainers the piston spring-loaded from two butt-ends by compression springs is movably fitted on cotter. The piston is provided with vertical channels going into horizontal position. Channels contact with varying in width vertical recessions. Recessions are made on circumferential generatix of rod surface and are interconnected with horizontal sections of vertical channels which are located in the rod and then go into horizontal sections. Longitudinal axes of the latter are positioned above ring-shaped retainers in over-piston and under-piston chambers of operating cylinder.

EFFECT: design simplification and enhancement of usage efficiency.

3 dwg