EGR Cooling System with Multiple EGR Coolers
US7461641B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2007 |
| Grant date | Dec 9, 2008 |
| Priority date | — |
| Expiry date | Oct 18, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M26/35
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An EGR cooling system is provided. The EGR cooling system comprising a plurality of EGR coolers configured to cool the EGR to a plurality of successively lower temperatures, where at least one of the plurality of EGR coolers includes a finned EGR cooler that comprises a plurality of channels for dissipating heat in the EGR, the plurality of channels increasing heat transfer surface area while having sufficient fin spacing to avoid clogging. The EGR cooling system may further comprise a catalyst configured to remove particle matters and/or hydrocarbons from the EGR, the catalyst positioned upstream of at least one of the plurality of EGR coolers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.