FIELD: transport.
SUBSTANCE: absorber unit contains casing (12) with open front and closed rear parts (14). Compressed cushion element (18) is located in rear part and it has adjacent seat structure located near open front part from one side. Friction absorbing element (42) is installed in casing open front part. Spring extending mechanism (76) uninterruptedly spring-load friction absorbing element outside of compressed cushion element extending this friction absorbing element after compression of absorber unit. Compressed cushion element contains hydraulic cylinder with sliding piston (122) for formation of high- and low-pressure chambers. Dosing unit with sliding dosing needle with variable performance characteristics depending on its position is located in piston.
EFFECT: increase of reaction pressure of liquid medium in low-pressure chamber for increase of absorber unit impact absorbing capacity during compressing impact under operating conditions and for decrease of reaction pressure of liquid medium in low-pressure chamber to meet test requirements for impact loads.
20 cl, 4 dwg
