An Experimental Study of the Friction and Temperature characteristics of Engine Crankshaft Bearings

엔진 크랭크샤프트 베어링에 대한 마찰 및 온도 특성에 대한 실험적 연구

To increase the fuel economy, a reduction of friction loss is important in engines. Experimental investigations have been required for reducing the friction loss of crankshaft bearings. Hydraulic cylinder, and servo control ler system which modified the applied load, and test rig for the observation of the characteristics of engine crankshaft bearings were designed and fabricated. Experiment is performed. Friction torque, journal locus and circumferential temperature variations of crankshaft bearings were measured with appling load, revolution speed, and oil inlet temperature, etc.