SHOCK-ABSORBER WITH INCREASED DISSIPATING ABILITY AND PRACTICALLY WITHOUT OIL Russian patent published in 2015 - IPC F16F9/16 

FIELD: machine building.

SUBSTANCE: invention relates to machine building. The shock-absorber contains stock-piston assembly (2), that moves with sliding in the tubular casing (3). Stock-piston assembly limits together with the tubular casing two work chambers (11A, 11B) with hydraulic fluid. Each work chamber (11A, 11B) is permanently connected with the secondary chamber (12A, 12B) containing heterogeneous structure (14, 15) for energy absorption-dissipation, it is capillary-porous matrix (14) and fluid (15) for which the matrix is lyophobic. Secondary chambers (12A, 12B) are ring chambers made in the wall of the tubular casing (3) from both sides of the central part (28). Each secondary chamber (12A, 12B) has flexible casing (13A, 13B) containing the heterogeneous structure (14, 15). Each of two work chambers (11A, 11B) is connected via the reverse device (22A, 22B) with the compensation chamber (17A, 17B) made at the appropriate end of the tubular casing (3). The compensation chambers (17A, 17B) ensure continuity of the hydraulic fluid during movement of the stock-piston assembly (2) in the tubular casing (3).

EFFECT: increased dissipating ability of the shock-absorber containing minimum quantity of oil, and stable work under conditions of increased loads and speeds.

25 cl, 9 dwg