Method for operating a feed module of an SCR catalytic converter system
US10837340B2 · kind B2 · utility
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3References
19Claims
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Inventor
Key dates
| Filing date | Aug 8, 2019 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | Aug 8, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method for operating a feed module of an SCR catalytic converter system which has a feed pump, a feedback pump and a hydraulic interface channel. The feed module is operated in a test state in which a feed operation of the feed pump takes place and a feed operation of the feedback pump does not take place. Owing to a time profile of an MSP current (IMSP) of the feed pump it is decided in the test state whether the feed module is to change into a thawing state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.