| 摘要 |
<p>PURPOSE:To provide a filter excellent in reliability, which can maintain the renovation performance of a filter successively, by improving the mechanical strength., the thermal strength, and the renovation ratio of the filter, concerning the filter which collects the particulates contained in the exhaust gas current of an internal combustion engine (diesel engine) and then is renovated. CONSTITUTION:Fiber-shaped honey-comb structures 20 and particle-shaped honey comb structures 21 are arranged alternately from the inflow side of fluid so at the constitute a filter. The fiber-shaped honey comb structures 20, since excellent in heat conductivity, can burn particulates efficiently and also they can transmit the combustion heat to the rear particle-shaped honey comb structures 21, and provide high renovation ratio. Moreover, the particle-shaped honey comb structures 21, since excellent in mechanical and thermal strengths, can prevent the breakdown of the filter by mechanical and thermal factors. Moreover, this has high effect by making the above filter bear a catalyst, which decomposes particulates at low temperature, or an electric wave absorbing material.</p> |
