| 专利名称： | Ceramic honeycomb filter |
| 公开（告）号： | |
| 公开（公告）日： | 2007-04-12 00:00:00 |
| 申请（专利）号： | DE20026018538(DE60218538D) |
| 申请日： | 2002-12-02 00:00:00 |
| 发明（设计）人： | HITACHI METALS LTD (JP) |
| (申请)专利权（人）： | SUWABE HIROHISA (JP);OKAZAKI SHUNJI (JP) |
| 内容： | To obtain a honeycomb filter in which the number of both side sealed passages is reduced by appropriately arranging the both side sealed passages constituting a resonance pipe and the number of outflowing side sealed passages is increased and PM collecting capacity is increased without reducing a muffling function as much as possible. ! This ceramic honeycomb filter has an inflowing side sealed passage in which an exhaust gas inflowing side of the passage surrounded by a partition wall of ceramic honeycomb structure and having a square cross section is sealed with a sealing part, the outflowing side sealed passage in which an outflowing side is sealed with the sealing part and the both side sealed passage in which both the inflowing side and the outflowing side are sealed with the sealing parts. In this ceramic honeycomb filter, all eight passages surrounding the both side sealed passage are the inflowing side sealed passages or the outflowing side sealed passages and further at least two inflowing side sealed passages or the outflowing side sealed passages are provided between two both side sealed passages standing in a line in a stretching direction of the partition wall on a passage cross section of a vertical direction. ! (C)2007,JPO&INPIT |
发布日期：2007-08-27 10:32:00