| abstract |
The invention discloses a Miller circulating supercharging direct-injection gasoline engine which comprises a cylinder body, a cylinder cover, a Miller circulating combustion system, a high-pressure fuel direct-injection system, a low-pressure water-cooling waste gas recirculation system, a variable-section waste gas turbocharging system, an engine integrated intercooling air inlet system, an electronic water pump driven engine intelligent thermal management control system, a solenoid valve driven full-variable displacement oil pump, a controllable piston engine oil cooling injection system, a central intake and exhaust continuous variable valve timing system, an advanced engine fuel evaporation and discharge control system and a high-efficiency crankcase ventilation system, wherein the Miller circulating combustion system, the high-pressure fuel direct-injection system, the low-pressure water. The Miller cycle combustion system can reduce fuel consumption and improve the heat efficiency of the engine; the variable-section exhaust gas turbocharging system is matched with the Miller circulating combustion system to improve the air intake efficiency at low speed, and simultaneously the engine performance at high speed is considered; the cooling system driven by the electronic water pump greatly reduces the friction work and the heat loss of the engine. |