AXIAL INTERNAL COMBUSTION ENGINE Russian patent published in 2001 - IPC

FIELD: mechanical engineering; transport engineering; production of portable tools. SUBSTANCE: piston is installed in cylinder and provided with channels to feed and remove oil from cylinder walls. Oil is supplied to piston by telescopic oil pump. Piston rod has double-start screw with lead cross thread. Screw passes through flywheel. Timing gear has intake electric valves installed in piston, exhaust electric valves, each installed in cylinder head and provided with relief valve, channels to pass gases in exhaust electric valve head and ring groove in seat of exhaust electric valve. Electric ignition electrically controlled unit injector has antechamber, spring-loaded piston with atomizer, needle controlled by electromagnet and ignition spiral. Proposed designs of timing gear, unit injector and mechanical energy converter reduce overall dimensions and weight of engine, improve engine control and stability of operation at different speeds and modes, reduce consumption of lubricants and cut down friction losses in piston-cylinder pair. EFFECT: improved reliability of operation. 3 dwg