DAMPING SYSTEM OF VERTICAL VIBRATIONS OF RAILWAY PASSENGER CAR BODY Russian patent published in 2010 - IPC F16F15/02 F16F9/50 

FIELD: transport.

SUBSTANCE: system includes vertical hydraulic dampers installed under the body, car body vibration frequency sensors installed on the body in location area of each damper, car speed sensor, control unit, electric power supply. Each damper is made in the form of piston pump with pressure and free flow cavities for working liquid, which are interconnected with each other through a throttle. Damper is equipped with throttle stock with possibility of regulating resistance coefficient owing to covered throttle hole. Stock of throttle of each damper is equipped with the drive made in the form of electromagnet the core of which is connected to throttle stock. Outputs of car body vibration frequency sensors, car speed sensor, electric power supply are connected to control unit inputs. Coil of electromagnet of each damper is attached to the appropriate control unit output. Control unit provides automatic supply of the required value of the necessary electric signal to electromagnets of each damper.

EFFECT: increase of quality of vibration protection.

2 cl, 1 dwg