| 摘要 |
<p>There is provided a technology that enables, in an exhaust gas recirculation system (30) of an internal combustion engine, to supply EGR gas in an improved manner. The system (30) is provided with a supercharger (15) having a turbine (56) provided in an exhaust passage (14) and a compressor (50) provided in an intake passage (13), an EGR passage (31) that connects the exhaust passage (4) at a point downstream of the turbine (56) and the intake passage (31 ) at a point upstream of the compressor (50), and internal EGR quantity changing means (60) for changing the quantity of internal EGR of the internal combustion engine. The ratio of the quantity of external EGR introduced into a cylinder (12) by supplying exhaust gas from said internal combustion engine through the EGR passage (31) and the quantity of internal EGR remaining in the interior of the cylinder (2) is changed according to the load on the internal combustion engine.</p> |
