System device for stratified injecting exhaust gas recirculation for clean combustion of internal combustion engine

A system device for stratified injecting the recirculated exhaust gas for clean combustion of an internal combustion engine, comprising:

• a turbine, a gas compressor, control valves, an exhaust manifold, a scavenging manifold, an intercooler, an exhaust gas filter, a water vapor collector, a booster pump, a pressure stabilizing tube, a pressure sensor, an injector, bypass valves, a condenser and an internal combustion engine, wherein the internal combustion engine comprises a cylinder, fuel injectors and a scavenging port;
• the system device for stratified injecting the recirculated exhaust gas for clean of the internal combustion engine is composed of three parts, 1) an exhaust gas recirculation system channel, 2) an exhaust gas recirculation injection system channel and 3) a power system;
• wherein a first bypass valve, a first control valve, the intercooler, the exhaust gas filter and the water vapor collector are sequentially connected, and an outlet of a second bypass valve is connected between the first bypass valve and the first control valve in parallel to form an exhaust gas recirculation system channel;
• the exhaust gas recirculation injection system channel is formed by sequentially connecting the booster pump, the pressure stabilizing tube, the pressure sensor, a second control valve and the injector in the internal combustion engine;
• according to structure of the power system, an outlet of the exhaust manifold is connected to an inlet of the turbine, the turbine is coaxially connected with the gas compressor, and an outlet of the gas compressor is connected to the condenser;
• the condenser is connected with the scavenging manifold, and an outlet of the scavenging manifold is connected to the scavenging port in the internal combustion engine;
• exhaust gas from the internal combustion engine is directed to the exhaust manifold;
• part of the exhaust gas at a rear end of the turbine is discharged into the atmosphere, and part of the exhaust gas is connected to the first bypass valve;
• and the outlet of the exhaust manifold is connected to the inlet of the turbine in parallel and then connected to an inlet of the second bypass valve through a pipeline.