Reasoning the necessity of regulating the operation of the vehicles diesel cooling system

• Main Authors: A. P. Marchenko, A. Y. Fedorov, O. Y. Linkov, V. F. Klimov
• Format: Article
• Language: English
• Published: Kharkiv National Automobile and Highway University 2018-11-01
• Series: Avtomobilʹnyj Transport (Harʹkov)
• Subjects: demolition; diesel; temperature; cooling system; oil; fan
• Online Access: https://dspace.khadi.kharkov.ua/dspace/bitstream/123456789/2515/1/02_43.pdf

Modern requirements for internal combustion engines are becoming ever more stringent, and current trends require the manufacturer to have high power and economy. This pushes the manufacturer to create and upgrade the design of the internal combustion engine and its systems. Modern technologies allow the creation of high-tech internal combustion engines with electronic control systems that increase the efficiency of resource use, and im-prove environmental parameters. As a result, modern engines can dynamically change their parameters and adjust to the needs of consumers. One of the main systems that affect the performance of an inter-nal combustion engine is the cooling system. The regulation of the cooling system allows maintaining the optimum temperature of the coolant. The low or periodically increasing and decreasing temperature of the coolant and oil leads to such consequences as increased wear of parts in friction pairs, an increase in fuel consumption and ineffective operation of the cooling system. Goal. Analyze and justify the need to regulate the diesel engine cooling system of the road vehicles. Methodology. Based on the experimental data, an analysis of the change in the temperature of the heat transfer media was carried out and a com-parison was made with the optimum recommended temperature. Result. It is determined that with a change in the speed of the diesel engine's crankshaft and load, the temperature deviates, indicating that there are no measures aimed at regulating the temperature state of the diesel and the need to develop and implement a system for regulating the temperature of the heat carriers of the internal combustion engine. Originality. Estimation of temperature condition and substantiation of the necessity to regulate temperatures of heat carriers was not applied earlier to a diesel engine of 5TDF type. Practical value. This assessment will lay the foundation for the rationale for the development of a cooling system control for domestic diesel engines of the 5TDF type.