FIELD: engine engineering. SUBSTANCE: each cycle fuel supply is divided into two portions. One portion is evaporated using heat liberated at burning out of the other portion. Mixture of evaporated fuel with air is fed to the under- piston space of the cylinder and is then cooled. Heavy fraction of fuel are settled on cold walls of the cylinder. The residual vapors of light fractions form fuel-air mixture. Lubricant made of heavy fractions of fuel is spread by the piston over the walls of the cylinder, enters working chamber, and is burned out gradually. EFFECT: enhanced efficiency. 1 dwg
