RU94030984A - Method of creating cycle in combined two-stroke internal combustion engine and internal combustion engine for realization of this method - Google Patents

Abstract

FIELD: manufacture of engines. SUBSTANCE: proposed engine is free-piston two-stroke internal combustion engine. Piston unit has one central blow piston and two side working pistons mounted on common rod. Side pistons are arranged in cylinder block forming two combustion chambers and two power cylinders where expansion of combustion products is continued. Gases from power cylinders flow to free turbine where final expansion takes place. Energy of motion of piston unit is converted into energy of pressure of liquid in hydraulic converter and is used partially for driving the piston compressor used for supercharging the engine. Cylinders are provided with additional pistons which are used to control degree of engine compression. EFFECT: enhanced reliability. 9 cl, 6 dwg

Claims (1)

Использование: двигателестроение. Сущность изобретения: двигатель выполнен по свободнопоршневой схеме и работает по двухтактному циклу. Поршневой блок имеет один центральный продувочный поршень и два боковых рабочих поршня, размещенных на общем штоке. Боковые поршни размещены в блоке цилиндров с образованием двух камер сгорания и двух силовых цилиндров, в которых осуществляется продолженное расширение продуктов сгорания. Из силовых цилиндров газы поступают на свободную турбину, где происходит их окончательное расширение. Энергия движения блока поршней преобразуется в энергию давления жидкости в гидропреобразователе и частично затрачивается на привод поршневого компрессора, осуществляющего наддув двигателя. В цилиндрах размещены дополнительные поршни, с помощью которых осуществляется регулирование степени сжатия двигателя.Usage: engine building. The inventive engine is made according to the free-piston scheme and operates on a two-stroke cycle. The piston unit has one central purge piston and two side working pistons located on a common rod. Side pistons are placed in the cylinder block with the formation of two combustion chambers and two power cylinders, in which the continued expansion of the combustion products. From the power cylinders, the gases enter a free turbine, where their final expansion takes place. The energy of movement of the piston block is converted into the energy of the fluid pressure in the hydraulic converter and is partially spent on the drive of the piston compressor, which carries out the boost of the engine. Additional pistons are placed in the cylinders, with the help of which the degree of compression of the engine is regulated.