High flow (delta P) differential pressure EGR system with provision for both flow control and OBD monitor
US7938105B2 · kind B2 · utility
5Cited by
14References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2007 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Mar 9, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In one approach, a method for measuring exhaust gas recirculation flow in an engine is provided. The method comprises separating EGR flow into at least a first flow and a second flow, passing the separated first flow through a restriction region, where the first flow passes through the restriction region separately from the separated second flow, combining the separated second flow and inducting the combined flows into a cylinder of the engine, where the EGR flow is separated and then combined within a common EGR passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.