SHOCK ABSORBER Russian patent published in 2006 - IPC F16F5/00 F16F9/34 

FIELD: transport mechanical engineering.

SUBSTANCE: shock absorber can be used as hydraulic telescopic shock absorber for transportation vehicles, mainly for rail rolling stock. Non-differential-type shock absorber has reservoir, cylinder with bottom, which is mounted coaxially inside the reservoir to form recuperative cavity. Cylinder has damper and back and safety valves. Piston, provided with damper and compression and straining strokes safety valves, is disposed in cylinder; the damper is mounted onto recess of rod and it is connected with thread. There is also guide with opening for letting rod pass. The guide closes cylinder and reservoir. Shock absorber is provided with compression and straining stokes overflow valves which valves have static characteristics corresponding to inclination of operational characteristic of shock absorber to kink point. Onto cylindrical surface of piston at its both ends there are pairs of opposite flats, which are opened at ends of piston; pair of through holes is made in perpendicular to plane of flats. One pair goes through spring cavities of overflow and safety valves of straining stroke, and the other one goes through spring cavities of overflow and safety valves of compression stroke.

EFFECT: improved reliability of operation.

3 cl, 4 dwg