| 发明名称 |
Exhaust gas filter, method of producing the same, and exhaust gas purification apparatus |
| 摘要 |
An exhaust gas filter having a ceramic filter body is configured such that a specific heat h (cal/g DEG C.) of ceramic powder constituting the body, and a bulk specific gravity d (g/cm3) of the filter, satisfy the relation 0.12 (cal/cm3 DEG C.)</=hxd</=0.19 (cal/cm3 DEG C.). The ceramic filter body includes a plurality of cells which extend axially to open at opposite ends of the body. One of the opposite axial ends of each of the cells is closed by a filler in such a manner that the closed ends of the cells and the open ends of the cells are arranged in an alternating configuration. The filter traps particulates in the exhaust gas, and the trapped particulates are removed by regeneration combustion of the filter. The filter exhibits excellent durability, thus preventing the formation of cracks in the surface and interior of the filter. When the filter is mounted on a diesel engine, the diesel engine advantageously does not discharge black smoke.
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| 申请公布号 |
US6101793(A) |
申请公布日期 |
2000.08.15 |
| 申请号 |
US19980063063 |
申请日期 |
1998.04.21 |
| 申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
NAGAI, NOBUAKI;WADA, SHINJI;MURANO, YUICHI;IKEDA, SACHINORI |
| 分类号 |
F01N3/02;B01D39/00;B01D39/20;B01D46/00;B01D46/24;C04B35/478;C04B38/00;F01N3/022;F01N3/027;(IPC1-7):B01D39/20 |
主分类号 |
F01N3/02 |
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