| 摘要 |
PROBLEM TO BE SOLVED: To contribute to improvement of global environment by reducing NOx and improving combustion efficiency. SOLUTION: A filter such as filter paper in a honeycomb/pellet shape is coated with a nitrogen adsorbent such as zeolite to pass flow-in air therethrough. This nitrogen adsorption device is mounted for reducing the flow of nitrogen into an internal combustion engine, thus solving the above problem. COPYRIGHT: (C)2009,JPO&INPIT
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