GEARBOX Russian patent published in 1995 - IPC

FIELD: transport engineering; truck-tractors, tractors, road-building and agricultural machines. SUBSTANCE: high-efficiency direct drive is provided owing to installation of gear clusters on countershaft, use of tubular secondary shaft on primary shaft and selected coupling of power flow output link with primary or secondary shaft. EFFECT: reduced fuel consumption and wear of gearbox parts at operation in direct drive; possibility of crosswise and longitudinal arrangement of gearbox and engine.