HYDROPNEUMATIC SHOCK ABSORBER Russian patent published in 2019 - IPC F16F9/06 

FIELD: machine building.

SUBSTANCE: invention relates to hydropneumatic shock absorbers used in controlled knee modules. Shock absorber contains cylinder filled with working fluid, piston with rod arranged in it, two throttles with control mechanism each and compensation cavity. Shock absorber is equipped with made hollow and dividing piston cavity on first and second cavities partition with two insulated cavities, connected one with rod end, the other one with the first piston cavity, and both periodically with second piston cavity. Each control mechanism is made in the form of a servo mechanism with a shaft fixed on the partition. Each throttle is formed by a seat of the corresponding valve, made with a calibration hole, and a corresponding valve plate installed on the shaft of the corresponding servomechanism with formation of splined connection. Valve plate is made with a shaped slot and has the possibility of periodic axial movement along the shaft of the corresponding servomechanism and periodic rotation at the specified angle.

EFFECT: reduced dimensions of shock absorber and compactness at its location in knee modules at simultaneous improvement of efficiency of throttles.

1 cl, 3 dwg