ENDLESS TRACK VEHICLE Russian patent published in 1994 - IPC

FIELD: track vehicles. SUBSTANCE: vehicle has mechanism for changing support surface of tracks with side hydraulic cylinders connected to support rolls in proximity to the midportion of bearing surface, and hydraulic steering system with brake hydraulic cylinders engaging during negotiating a turn with corresponding side hydraulic cylinder through two-position hydraulic distributor. When making a turn, hydraulic cylinder of delay side acts on roll to ensure optimized pressure profile under the track and reduce resistance to turning. When initiating straight movement, the hydraulic cylinder communicates with discharge, and fails to render resistance to roll. EFFECT: enhanced maneuverability and improved fuel economy. 2 dwg