PNEUMATIC SUSPENSION Russian patent published in 2008 - IPC F16F9/04 B60G11/26 

FIELD: mechanics.

SUBSTANCE: pneumatic suspension comprises a rubber-cord casing with a cover, which form main working cavity, additional cavity located inside the main working cavity and co-axial thereto, and a baffle between them. On the baffle, a cylinder-type valve unit is rigidly secured. The cylinder bottom is attached to the baffle and has axial openings. In the cylinder wall, there are axial channels, which connect the working cavity with the cylinder cavity. In the cylinder end cover, there are axial openings, elastic valves, which contact the axial openings in the cylinder bottom and its end cover at the beginning of compression or retraction, respectively. In the cylinder end cover and bottom, solenoid windings are installed. Inside the cylinder cavity, isolation valve of piston type is installed. Both ends of the piston are provided with guiding magnet plungers with retracting springs installed inside the solenoid windings connected to the valve control system. The valve control system comprises a displacement transducer, a speed signal conditioner, a differential steering unit, switch control units, power circuit limit switches for connecting solenoid windings to the power supply. The displacement transducer is connected to the speed signal conditioner, which is connected to the differential steering unit, outputs of which are connected to inputs of power-circuit limit switch control units. Outputs of the units are connected to control inputs of power-circuit limit switches.

EFFECT: enhanced damping properties of pneumatic suspension.

2 cl, 3 dwg