Technical Paper
INVESTIGATION ON FUEL ECONOMY BENEFITS BY LUBRICATION SYSTEM OPTIMIZATION FOR A HIGH PERFORMANCE 2.2 L DIESEL ENGINE
2024-04-09
2024-01-2415
Lubrication system plays a major role not only in the durability of the modern IC engines but also in performance and emission. Lubrication system design influences the brake thermal efficiency of the engine. Also, efficient lubrication reduces the engine's CO2 emissions significantly. Thus, it is critical for an IC engine to have a well-designed lubrication system which performs efficiently at all engine operating conditions. The conventional lubrication system has a fixed displacement oil pump which can cater to a particular speed range. However, a fully variable displacement oil pump can cater to a wide range of speeds, thereby enhancing the engine fuel efficiency as the oil flow rates can be controlled precisely based on the engine speed and load conditions. This paper primarily discusses the optimization of a lubrication system with a Variable Displacement Oil Pump & map controlled PCJ for a passenger car diesel engine.