HYDRAULIC DAMPER Russian patent published in 2006 - IPC F16F5/00 F16F9/14 

FIELD: mechanical engineering; motor-car industry; aircraft industry; production of hydraulic dampers for various transport engineering.

SUBSTANCE: the invention is pertaining to production of hydraulic dampers for various transport engineering and may be used in mechanical engineering, motor-car industry, aircraft industry. The invention consists, that the hydraulic damper contains the working cylinder with the located in it resilient coupling rod and the piston on the butt of which there are the radial ribs and ledges having the grooves bent at the right angle to the coupling rod longitudinal axis. The piston consists of two disks rigidly fixed on the coupling rod. One of the disks - the upper disk has on its butt surface the radial ribs and the ledges having the grooves bent at the right angle to the coupling rod longitudinal axis. The other disk - the lower one is made solid. Between the disks there are movable slide blocks with the slits located in the grooves of the coupling rod and having the external cylindrical generating surfaces similar to the internal diameter of the working cylinder and with the "L"-shaped grooves being on the one side conjugated with the grooves of the upper disk, and on the other side - conjugated with the "T"-shaped through groove made in the coupling rod. The cylindrical generating surfaces of the indicated slide blocks are embraced, at least, by two rings. One of the rings with external metallic surface has the bending stiffness higher, than the bending stiffness of the other non-metallic ring - the internal one. The technical result of the invention is an increased effectiveness of damping capacities of the damper due to its capability to automatically change the resisting forces being in the functional dependence on the speed of the piston movement.

EFFECT: the invention ensures an increased effectiveness of damping capacities of the damper due to its capability to automatically change the resisting forces being in the functional dependence on the speed of the piston movement.

2 cl, 4 dwg