河南科技大学学报（自然科学版）2024，Vol.45Issue(2)：1-7,7.DOI:10.15926/j.cnki.issn1672-6871.2024.02.001
四缸发动机冷却系统设计及发动机温度场分析
Coding System Design of Four-cylinder Engine and Engine Temperature Analysis
摘要
Abstract
To evaluate the rationality of the cooling system design for a four cylinder engine,computational fluid dynamics method was used to analyze the engine cooling system from layout design,system flowrate determination,flow field of the cooling system and engine temperature field.The optimization design of adding a throttling notch to the cylinder block water jacket was proposed to solve the problem of significant differences in coolant flow velocity in the cylinder block water jacket.The results show that the coolant flow velocity uniformity in cylinder block water jacket is significantly improved,and the wall temperature of each cylinder liner can be reduced by 1～3℃.The thermal balance test results at an engine speed of 12 000 r/min show that the maximum difference in cylinder temperature is about 4℃.The oil temperature is about 129℃,which is controllable(less than 140℃),indicating that the cooling system of the four cylinder engine is designed reasonably to ensure uniform cooling of each cylinder and oil cooling.关键词
四缸发动机/冷却系统/冷却液流速/壁面温度/均匀冷却Key words
four cylinder engine/cooling system/coolant flow velocity/wall temperature/uniform cooling分类
交通工程引用本文复制引用
谭礼斌,袁越锦,王栋,曹博涛,孙宁..四缸发动机冷却系统设计及发动机温度场分析[J].河南科技大学学报（自然科学版）,2024,45(2):1-7,7.基金项目
国家自然科学基金项目(51876109) （51876109）
