柴油机壁流式陶瓷过滤体的开发与性能分析

DEVELOPMENT AND CHARACTERISTIC ANALYSIS ON THE DIESEL CERAMIC WALL FLOW FILTER

根据柴油机排气微粒净化的需要和我国目前生产的壁流式陶瓷过滤体的性能状况,对原有壁流式陶瓷过滤体进行了改进;同时,根据过滤体反吹再生的技术特点,探索性地开发了新型金属涂层壁流式陶瓷过滤体。对改进后的壁流式过滤体和金属涂层壁流式过滤体的阻力特性、过滤特性以及再生特性等进行了试验和分析。试验结果表明,改进后的过滤体的各方面性能有了很大的提高,金属涂层过滤体表现出良好而独特的性能。

According to the requirement of diesel particulate emission control and the performance of the diesel ceramic wall flow filter produced in China, the manufacture techniques and the material component of the ceramic wall flow filter are improved, and a new type ceramic wall flow filter of metal coat is developed in order to satisfy the requirement of the filter reverse cleaning technology. The characteristics of resistance, filtration and regeneration of the improved ceramic wall flow filter and the ceramic wall flow filter coated＂ metal are analyzed by experiments. The experimental results show that the performances of the improved ceramic wall flow filter increase and the ceramic wall flow filter of metal coat exhibit excellent and particular performances.