Control system for a reductant dosing system
US10641152B2 · kind B2 · utility
0Cited by
7References
16Claims
0Family size
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Inventors
Key dates
| Filing date | Dec 4, 2017 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Jul 25, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A control system is provided to a reductant dosing system for actively maintaining the reductant dosing system ready for use by flushing unused reductant that has crystallized at a return valve of the reductant dosing system. The control system includes a controller that can control a manner of operation of specific system hardware that is present in the reductant dosing system to flush the unused reductant from the return valve that could otherwise cause the return valve to remain a flow-blocking condition as a result of the crystallized reductant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.