ADJUSTABLE MAGNETORHEOLOGICAL PNEUMATIC SHOCK ABSORBER Russian patent published in 2022 - IPC F16F9/06 F16F9/53 

FIELD: transport engineering.

SUBSTANCE: invention relates to transport engineering. The shock absorber contains a housing filled with magnetorheological fluid with a cylindrical chamber. A hollow rod with a piston is placed in the cylindrical chamber. The piston contains a system of alternating poles, magnetically insulating washers with grooves, an anti-friction gasket. The hollow rod contains at least two cores. The solenoid coil contains at least three sections, one of which is located in the piston, and the others are located in the hollow rod on the cores. The rod cavity of the cylindrical chamber body is connected to two pneumohydraulic elastic elements of different stiffness, and the piston cavity is connected to one. All pneumohydraulic elastic elements have adjustable chokes connected to an electronic control unit. The control signal to the control unit is supplied from the vertical acceleration sensor.

EFFECT: increase in the efficiency of vibration damping, a decrease in dynamic and elimination of resonant modes from external influences.

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