Exhaust emission control device
US7549286B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2004 |
| Grant date | Jun 23, 2009 |
| Priority date | — |
| Expiry date | Nov 16, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2560/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Sensing accuracy of a temperature sensor is enhanced so as to accurately conduct regeneration control of a particulate filter.Disclosed is an exhaust emission control device wherein a pair of dispersion plates 10 and 11 with a number of communicating holes 10a and 11a are arranged in a filter casing 7 incorporated in an exhaust pipe such that the plates are opposed to each other in a direction of flows of exhaust gas 3, catalytic regenerative particulate filter 6 being received in a reception chamber 12 defined by and between the dispersion plates 10 and 11. A temperature sensor 14 is arranged in the filter casing 7 so as to detect exhaust temperature in the reception chamber 12, a sensing element 15 of the temperature sensor 14 being adapted to be in one of flows of the exhaust gas 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.