ENGINE Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: vertical housing 1 accommodates piston 6 with mechanical spring 7. Housing 1 is secured inside sealed chamber 8 for axial rotation. Chamber 8 contains liquid 9 with a level higher than the level of tangential slotted holes 5 of housing 1. Top part of chamber has ignition spark 10, inlet and outlet solenoid-operated valves 11, 12, and heat exchanger 13 of cooling system at its outer surface. EFFECT: improved performance. 2 dwg