Patent ID: 6122910
Filing Date: 2000-09-26
Classification: B01D,F01N,F02D,Y02T

Abstract:
An exhaust gas purifying apparatus for an internal combustion engine, comprising:a plurality of exhaust passages connected to a multi-cylinder internal combustion engine;a joint exhaust passage formed by merging said plurality of exhaust passages;an exhaust gas purifier that purifies exhaust gas that flows through said joint exhaust passage;an adsorption/desorption unit provided in each of said exhaust passages that adsorbs an unburnt gas component contained in the exhaust gas that flows through each of said exhaust passages at a temperature lower than a predetermined temperature and desorbs the adsorbed unburnt gas component at a temperature equal to or higher than the predetermined temperature; anda desorption/adjustment mechanism that synchronizes the timing of each of said adsorption/desorption units to desorb the unburnt gas components therefrom so that the introduction timing of the unburnt gas components, which have been desorbed from the respective adsorption/desorption units, into the exhaust gas purifier occurs at the same time.