Patent ID: 8516801
Filing Date: 2013-08-27
Classification: B01D,F01N

Abstract:
1. An exhaust gas purifying apparatus for an internal combustion engine, the apparatus comprising: a main exhaust passage through which exhaust gas exhausted from the internal combustion engine flows; a bypass passage branching off from the main exhaust passage at an upstream connecting portion connected to the main exhaust passage while merging again with the main exhaust passage at a downstream connecting portion provided downstream of the upstream connecting portion; flow path switching means that is capable of switching a flow target into which the exhaust gas flows between the main exhaust passage and the bypass passage; an adsorbent that is disposed in the bypass passage and has a function of adsorbing at least NOx of unpurified components contained in the exhaust gas; a catalyst that is disposed in the main exhaust passage and capable of purifying the exhaust gas; a purge passage branching off from the bypass passage while connecting to an intake passage of the internal combustion engine; and an electronic control unit programmed to execute