Injector deposit detection for SCR injection system
US10337385B2 · kind B2 · utility
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2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2017 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | Dec 1, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method for monitoring an SCR injection system is disclosed. The method includes operating a pump, and measuring a first pressure drop value in the SCR injection system during actuation of a reductant injector. A second pressure drop value in the SCR injection system is measured during a further actuation of the reductant injector. It is determined to perform a deposit mitigation strategy based on the first pressure drop value and the second pressure drop value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.