Assembly for assembling flat-twin or flat-four engine of vehicle in automotive industry, has engine whose crankshaft is connected to crankshaft of other engine to obtain two concentric driving shafts rotating in same or opposite direction

摘要

The assembly has an engine whose crankshaft (1) is connected to opposite cylinders (9, 10). Two coupled offset round cams (3, 4) are arranged along the crankshaft according to dynamic balance of the crankshaft and the opposite cylinders. A crankshaft (2) of another engine is attached the former crankshaft to allow passage of the former crankshaft so as to obtain two concentric driving shafts rotating in same direction for the engines rotating in the same direction and rotating in opposite direction for the engines rotating in opposite direction, where the engines are arranged at 180 degree.