Exhaust gas purification device and particulate filter
US10156170B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2014 |
| Grant date | Dec 18, 2018 |
| Priority date | — |
| Expiry date | Apr 25, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2330/34
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The exhaust gas purification device provided with a particulate filter disposed in an exhaust passage of an internal combustion engine and capturing particulate matter in exhaust gas discharged from the internal combustion engine. The particulate filter is provided with a wall-flow part having an inlet-side cell that is open only at an end on an exhaust gas inflow side, an outlet-side cell that is adjacent to this inlet-side cell and is open only at an end on an exhaust gas outflow side, and a porous wall that partitions the inlet-side cell from the outlet-side cell, and is also provided with a straight-flow part having a through cell that penetrates the filter in an axial direction thereof and is open at the end on the exhaust gas inflow side as well as the end on the exhaust gas outflow side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.