ROLLER ON PNEUMATIC TIRES Russian patent published in 2002 - IPC

FIELD: road building and construction facilities; compactors. SUBSTANCE: roller wheels are installed on support which permit the wheels execute complex rotation. Pushing devices and flexible hydraulic chambers connected by pipelines through hydraulic distributors with hydraulic pulsers are installed between frame and wheels. EFFECT: increased efficiency and improved quality of material compacting owing to realization of complex loading by combining vertical power action onto layer of compacted material with alternating adjustable horizontal action. 3 dwg