| 发明名称 | Filter element | ||
| 摘要 | A filter element including inflow passages and outflow passages and, a total cross-sectional area of all the inflow passages is larger than a total cross-sectional area of all the outflow passages, and the number of the inflow passages is larger than the number of the outflow passages, a cross section of the filter element is formed by the large number of outflow passages each having a regular hexagonal shape and the large number of inflow passages each having a modified hexagonal shape, the large number of regular hexagonal outflow passages are formed by first hexagonal passages, and second hexagonal passages each having a cross-sectional area smaller than that of each of the first hexagonal passages, an outer peripheral side of each of the first hexagonal passages and the second hexagonal passages is surrounded with six modified hexagonal inflow passages via the partition walls. | ||
| 申请公布号 | US9080479(B2) | 申请公布日期 | 2015.07.14 |
| 申请号 | US201313782089 | 申请日期 | 2013.03.01 |
| 申请人 | NGK Insulators, Ltd. | 发明人 | Sakashita Satoshi;Hirakawa Toshihiro |
| 分类号 | B01D39/06;B01D39/14;B01D39/20;B01D24/00;B01D46/00;B01D50/00;F01N3/022;B01D46/24 | 主分类号 | B01D39/06 |
| 代理机构 | Burr & Brown, PLLC | 代理人 | Burr & Brown, PLLC |
| 主权项 | 1. A filter element which filters an exhaust gas from an internal combustion engine, comprising: an inflow surface and an outflow surface; and a large number of inflow passages and a large number of outflow passages, the inflow passages and the outflow passages being partitioned by partition walls made of a porous material, wherein a total cross-sectional area of all the inflow passages is larger than a total cross-sectional area of all the outflow passages, and the number of the inflow passages is larger than the number of the outflow passages, a cross section of the filter element is formed by the large number of outflow passages each having a regular hexagonal shape and the large number of inflow passages each having a modified hexagonal shape, the large number of regular hexagonal outflow passages are formed by first hexagonal passages, and second hexagonal passages each having a cross-sectional area smaller than that of each of the first hexagonal passages, an outer peripheral side of each of the first hexagonal passages and the second hexagonal passages is surrounded with six modified hexagonal inflow passages via the partition walls, and the first hexagonal passages and the second hexagonal passages are regularly arranged. | ||
| 地址 | Nagoya unknown | ||