UNIVERSAL ENGINE Russian patent published in 1999 - IPC

FIELD: mechanical engineering, in particular, internal combustion engines. SUBSTANCE: engine has a crank mechanism; valve gear; fuel, ignition, mixing systems; piston with a head located in a cylinder, which is made in the form of a cylinder with a cover accommodating a spark-plug, injector, change-over device, inlet and exhaust valves, engageable with the inner surface of the combustion chamber made in the form of a sleeve. Located between the block cylinder and the piston head cylinder is an auxiliary chamber connected with the mixture volume and compression control system. Depending on the type of fuel used, the engine converts the thermal power obtained as a result of fuel combustion to mechanical work. EFFECT: enhanced efficiency. 5 cl, 4 dwg