EGR flow metering systems and methods
US9228512B2 · kind B2 · utility
5Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2013 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Aug 7, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems for metering at least one EGR valve to a position determined to pass a desired EGR flow for a given set of engine characteristics. The methods include determining the EGR valve position based on pipe flow characteristics, or determining the EGR valve position based on pipe flow characteristics when differential pressure across the EGR valve is less than a pressure threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.