Exhaust gas purifying apparatus for internal combu

专利名称：Exhaust gas purifying apparatus for internal

combustion engine

发明人：Masaki Ueno,Shiro Takakura,Kei Machida申请号：US10658536申请日：20030910

公开号：US20040065077A1公开日：20040408

专利附图：

摘要：An exhaust gas purifying apparatus for an internal combustion engine isprovided for switching a switching valve at an optimal timing in accordance with an actualactivated state of a catalyzer and a heated state of an adsorbent to achieve an optimal

exhaust gas characteristic. The exhaust gas purifying apparatus comprises a catalyzerdisposed in an exhaust system of the internal combustion engine, an adsorbent filled in asecond passage circumventing a first passage in the exhaust system for adsorbinghydrocarbons within exhaust gases, a switching valve operable to switch between an openposition for opening the first passage and a close position for closing the first passage,an ECU for detecting an atmospheric pressure state, and a switching valve driver fordriving the switching valve to the close position upon start of the internal combustionengine, and driving the switching valve to the open position in accordance with thedetected atmospheric pressure state.

申请人：HONDA GIKEN KOGYO KABUSHIKI KAISHA

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