System and methods for reducing particulate matter emissions
US10287938B2 · kind B2 · utility
1Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2015 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Nov 10, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M25/00
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method for a vehicle comprises responsive to installation of a new exhaust particulate filter, doping fuel with an ash-producing additive, and combusting the doped fuel to produce ash, wherein the ash deposits as an ash coating on the new exhaust particulate filter. In this way, a filtration efficiency of an exhaust particulate filter can be increased quickly as compared to a filter with no deposited ash coating, inexpensively as compared to conventional methods using membranes, and with a lower back pressure drop as compared to conventional methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.