| 摘要 |
<p>An exhaust gas circulation device of internal combustion engine having a turbocharger, comprising an exhaust gas passage having a turbine provided therein and an intake air passage having a compressor provided therein, wherein an opening formed in the intake air passage on the downstream side of the compressor is opened when the exhaust gas is circulated, whereby, because intake air on the downstream side of the compressor is discharged into the atmosphere and a negative pressure inside the intake air passage lowers, a pressure difference between the exhaust gas pressure inside the exhaust gas passage and a negative pressure inside the intake air passage is increased, and the NOx discharge volume can be reduced through an increase in an exhaust gas circulating ratio.</p> |
