VEHICLE PNEUMOHYDRAULIC SUSPENSION Russian patent published in 2006 - IPC B60G11/26 

FIELD: transport engineering; pneumohydraulic suspension of trucks.

SUBSTANCE: proposed pneumohydraulic suspension of vehicle contains pneumohydraulic spring with main cylinder which accommodates piston with hollow rod forming pneumatic and hydraulic spaces, additional pneumatic space communicating with pneumatic space of main cylinder. Pneumohydraulic suspension contains helper spring with additional cylinder which accommodates piston with rod forming pneumatic and hydraulic spaces. Hydraulic spaces of main and helper springs are connected by flexible pipeline through adjustable damping device with bypass channel and valve. Additional pneumatic space is coupled with pneumatic space of main cylinder through throttling hole. Hollow rod of main cylinder has piston-divider made for moving along inner surface of rod from to stop. Piston of main cylinder is provided with toroidal slot on outer surface forming pneumatic space with inner surface of main cylinder. Main cylinder is provided with air cooling ribs. Additional cylinder and damping device are covered by water cooling jacket.

EFFECT: provision of simple and compact design with high elastic characteristics and power intensity indices.

1 dwg