Patent ID: 7784276
Filing Date: 2010-08-31
Classification: B01D,F01N,F02B,Y02T

Abstract:
1. An exhaust gas purifier installed in an exhaust passage of an internal combustion engine of a combustion equipment, comprising: a nitrogen oxide adsorbent temporarily adsorbing nitrogen oxide, and desorbing said adsorbed nitrogen oxide by a heating or a reducing atmosphere; an adsorbed substance desorbing means arranged in an exhaust gas upstream side of said nitrogen oxide adsorbent and heating the exhaust gas or converting the exhaust gas to the reducing atmosphere; and a combustion apparatus arranged in an exhaust gas downstream side of said nitrogen oxide adsorbent and constituted by a fuel supply means and an ignition means, wherein the nitrogen oxide adsorbent, the adsorbed substance desorbing means and the combustion apparatus are provided within said exhaust passage.