FIELD: mechanical engineering; methods of and systems for delivering fuel or fuel mixture into internal combustion engines and system components. SUBSTANCE: portions of noncombustible liquid injected into combustion chambers of engine cylinder turn into vapor under action of heat, maintain working motion of working members under action of volumetric expansion and execute additional work. Transfer of heat from exhaust gases of noncombustible liquid delivered into engine cylinders and reduction of power losses takes place with transfer of part of useful heat of working medium to ambient medium through cylinder liners and cooling liquid, and control of operation of pump delivering noncombustible liquid into cylinders is based on temperature changes in engine. Portions of noncombustible liquid are injected at into steam generators at moment of combustion of main mass of fuel. Heat from fuel gases is transferred to noncombustible liquid through some walls of steam generators and heat of exhaust gases is transferred to noncombustible liquid through other walls of steam generators. As a result, noncombustible liquid turns into vapor which is delivered into combustion chambers of engine cylinders. Exhaust fuel gases and steam are directed into heat exchange device, and further on steam and gas mixture is delivered into exhaust manifold. Description of device providing implementation of proposed method is given in description of invention. EFFECT: enlarged operating capabilities. 2 cl, 2 dwg
