LUBRICATION ARRANGEMENT FOR THE CROSSHEAD BEARING OF A TWO-STROKE INTERNAL COMBUSTION PISTON ENGINE

摘要

The lubrication arrangement has a piston pump (12) whose pressure side is connected via a lubricating oil supply line (6) to the cross- head pin (1) or to the connecting rod (3). During a time in which the lubricating oil pressure in the bearing gap between the cross-head pin (1) and the surrounding bearing surface of the connecting rod (3) is less than the supply pressure of the piston pump, the pump piston supplies lubricating oil to the bearing gap. The piston pump (12) is arranged in an externally accessible manner on the machine housing (7) and the lubricating oil supply line (6) is designed as a two-armed bell crank joint. The one arm (6') is hinged with its free end on the cross-head pin (1) or on the connecting rod (3) and the other arm (6'') is hinged with its free end on the machine housing (7). The piston of the piston pump (12) is connected in a jointed manner to the machine housing (7) and the cylinder surrounding the piston is connected in a jointed manner to the arm (6''), which is hinged on the machine housing (7), of the bell crank joint. IMAGE