Exhaust gas recirculation in a homogeneous charge compression ignition engine
US7377270B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2006 |
| Grant date | May 27, 2008 |
| Priority date | — |
| Expiry date | Oct 23, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A homogeneous charge compression ignition engine operates by injecting liquid fuel directly in a combustion chamber, and mixing the fuel with recirculated exhaust and fresh air through an auto ignition condition of the fuel. The engine includes at least one turbocharger for extracting energy from the engine exhaust and using that energy to boost intake pressure of recirculated exhaust gas and fresh air. Elevated proportions of exhaust gas recirculated to the engine are attained by throttling the fresh air inlet supply. These elevated exhaust gas recirculation rates allow the HCCI engine to be operated at higher speeds and loads rendering the HCCI engine a more viable alternative to a conventional diesel engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.