THERMODYNAMIC CYCLE AND ENGINE OPERATING ON SUCH CYCLE Russian patent published in 2001 - IPC

FIELD: mechanical engineering; heat engines. SUBSTANCE: heat-transfer agent - fuel with preset parameters for operation of engine is delivered into working chambers at beginning of compression stroke through additional valves or nozzles after closing of intake and outlet valve. This provides possibility of increasing fuel pressure and temperature to equivalent value by energy mass. During the cycle recuperation of heat of exhaust gases by gasification (evaporation) of liquid and emulsion heat-transfer agents in recuperator is provided. Recuperator is operated by heat of exhaust gases. Engine is furnished with system for recuperation of all kinds of liquid and emulsion fuels into gaseous fuel. Additional intensification of cycle and working process and more complete combustion of fuel and boosting and cooling of engine without additional consumption of energy are provided by injecting catalyst - water and solutions catalyzing working process into working chambers by means of high-pressure nozzles at expansion stroke in point Z of indicator diagram. Engine is provided with catalyst injection system. Heat of cooling medium is recuperated for obtaining positive effect and cooling of engine. EFFECT: increased efficiency, improved parameters of cycle and operation of engine, simplified design, provision of explosion safety, reduced toxicity of exhaust gases and improved engine cooling. 3 cl, 2 dwg