Cylindrical head for combustion engine, has inlet valves replaced by relief valves preloaded with X pressure bar corresponding to displacement of piston, and exhaust valves replaced by valves that repressing air to exhaust

摘要

The head has inlet valves replaced by a relief valves that is preloaded with X pressure bar corresponding to displacement of a piston. The exhaust valves are replaced by valves that repress air to the exhaust. The spring pressure performs closing action, and air pressure performs opening action when the piston goes to discharge stroke. Air pipe stores air at constant pressure for supplying to outlet valves.