GENERAL CALCULATION OF I.C. ENGINE LUBRICATION SYSTEM

Abstract

This paper presents a new calculation method for internal combustion engine (I.C. Engine) lubrication system. The main objective of this method is to establish pressure - volumetric flow curves of the lubrication network and of the oil pump according to designing and working parameters of the engine. Then the working point of the system will be determined through the intersection of these two curves. Based on the found working point, the pressures and volumetric flows of all units are specified. With these values, a traditional calculation for these units can be implemented reliably to conclude if these units are suitable for the system and how the working situation of the whole system is. To solve this matter lightly, a general calculating program on Matlab-Simulink was built. The diesel D243 engine was chosen as an object for the calculating program. The method developed was proved to be able to calculate I.C. Engine lubrication system either for new engine design or for test calculation of in-used engines. Moreover, it can be used to calculate pressurized lubrication systems of other mechanical machines.