FIELD: engines and pumps.
SUBSTANCE: invention refers to propulsion engineering. Technical result is increase of engine efficiency and enhancement of its adjustment. Substance of the invention consists that in an engine, one combustion chamber for a number of working cylinders with actuating pistons is used, and therefore the whole cubic capacity of the claimed engine fits one combustion chamber. Besides, potential considerable consolidation of inlet gas supplied to the working cylinders is implemented. This ensures to combust enhanced cyclic fuel charge, thereby to perform more engine running without increasing in thermal loss. Enhancement of engine adjustment is provided by application of main circulation systems with adjustable stroke of the actuating pistons in the claimed ICEs, as well as by application of a movement phase variation device of the actuating pistons.
EFFECT: this allows varying in compression when the engine in service, using various types of fuel and optimising engine running in various operating modes.
