US Patent 7699032 Camshaft of automotive combustion engines in particular

With a camshaft for an automotive internal combustion engine in particular, havingtwo concentrically arranged shafts mounted to rotate in opposite directions, namely an inside shaft (3) and an outside shaft (4),at least one single cam (1) fixedly connected to the inside shaft (3) by a pin (5) passing radially through the outside shaft (4) and passing radially through the outside shaft (4),a bearing of the pin (5) in the respective pin receptacles (6), each running radially, in the cam and the inside shaft (3),a lateral projection as the receptacle (6) on the cams (1),a space-saving design of the at least one adjustable single cam should be achieved.