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장명수(Myung Soo Jang),김재원(JaeWon Kim),정범용(BumYong Jung) 한국자동차공학회 2008 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
A car's auto-transmission system consists of torque converter, pump, and fluid line where working oil flows, oil cooler. When operating temperature increase, the viscosity of working fluid decreases. This result not enough transport power to the auto-transmission, as well as have an effect on useful life of component and change of material properties. This experimental study was conducted to investigate thermal performance and pressure drop of double pipe type hydraulic oil cooler, which were influenced by height and pitch of inner fin, louver pitch, and internal diameter of pipe, length of heated section. The purpose of this study is to find optimal design parameters and to develop a high performance oil cooler of auto-transmission system.