TY CONF TI HEAT EXCHANGE THROUGH DIRECT CONTACT IN INTERNAL COMBUSTION ENGINES KW internal combustion engine KW heat transfer KW gas mixture KW optimization KW thermal balance JO MODERN SYSTEMS AND TECHNOLOGIES IN TRANSPORT: PROBLEMS AND PROSPECTS - 2025 AU Novikov, A.P. AU Hripchenko, M.S. AU Latinin, A.V. PY 2025 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov