Exhaust gas recirculation system with control of EGR gas temperature
US7195006B2 · kind B2 · utility
22Cited by
13References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2005 |
| Grant date | Mar 27, 2007 |
| Priority date | — |
| Expiry date | Nov 29, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M26/10
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method and system for controlling the temperature of recirculated exhaust gas in an exhaust gas recirculation (EGR) system, such as those used in connection with diesel engines. An EGR loop (which may be either a high pressure loop or a low pressure loop) has a dual-leg segment with an EGR cooler on one leg and an EGR heater on the other leg. By means of a valve, the EGR gas may be diverted to either one leg or the other, thereby providing either cooled or heated EGR gas to the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.