Particulate filter service life prediction
US8620597B2 · kind B2 · utility
6Cited by
10References
7Claims
0Family size
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Key dates
| Filing date | Oct 1, 2010 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Sep 21, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2900/1611
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for determining the service interval of a particulate filter including the steps of determining a normalized current pressure differential across the particulate filter and determining a normalized pressure differential across the particulate filter for clean conditions. The clean pressure normalized pressure differential is subtracted from the current differential and divided by the time between regeneration to determine a current factor. A maximum factor is predetermined and compared to the current factor to determine service life for the particulate filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.