| 摘要 |
AN INTERNAL COMBUSTION ENGINE (E) OF NATURAL ASPIRATION SYSTEM FOR A VEHICLE OPERATES ON THE MILLER CYCLE IN AN OPERATING RANGE COVERING A NON-LOAD OPERATING RANGE AND A HIGH-OAD HIGH-SPEED OPERATING RANGE AT A LOW FUEL CONSUMPTION RATE. THE INTERNAL COMBUSTION ENGINE E HAS SIMPLE, LIGHTWEIGHT CONSTRUCTION, IS CAPABLE OF BEING MANUFACTURED AT A HIGH PRODUCTIVITY AT A LOW COST. THE INTERNAL COMBUSTION ENGINE E INCLUDES A CYLINDER (2) PROVIDED WITH A CYLINDER BORE 92A), A PISTON (8) FITTED FOR RECIPROCATION IN THE CYLINDER BORE (2A), AN INLET VALVE (35) TO BE OPENED AND CLOSED AT A FIXED INLETVALVE OPENING POINT AND A FIXED INLET VALVE CLOSING POINT IN THE ENTIRE OPERATING RANGE COVERING A NO-LOAD OPERATING RANGE AND A HIGH-LOAD HIGH-SPEED OPERATING RANGE, AND AN EXHAUST VALVE (36) TO BE OPENED AND CLOSED AT A FIXED EXHAUST VALVE OPENING POINT AND A FIXED EXHAUST VALVE CLOSING POINT IN THE ENTIRE OPERATING RANGE. THE FIXED INLET VALVE CLOSING POINT IS EITHER A POINT BEFORE THE BOTTOMDEAD CENTER OR A POINT AFTER THE BOTTOM DEAD CENTER, AT WHICH INTAKE AIR SUCKED INTO THE CYLINDER (2) REVERSES THROUGH THE INLET VALVE (35), AND THE INTERNAL COMBUSTION ENGINE (E) HAS A SET PISTON DISPLACEMENT WHICH ENABLES THE INTERNAL COMBUSTION ENGINE (E) TO GENERATE A MAXIMUM REQUIRE INDICATED POWER WHEN THE INLET VALVE (35) IS CLOSED AT THE FIXED INLET VALVE CLOSING POINT IN THEHIGH-LOAD HIGH-SPEED OPERATING RANGE. |
