Method and apparatus for cold starting an internal combustion engine
US8904767B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2008 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Jul 9, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method for achieving reduced emissions at cold start of an internal combustion engine having an exhaust gas after treatment system comprising at least one Diesel Oxygen Catalyst (DOC), at least one Diesel Particulate Filter (DPF) and a Selective Catalytic Reduction (SCR) unit, comprising the steps of: heating the DOC prior to cold starting said internal combustion engine, starting and controlling the internal combustion engine towards low NOx emission when said DOC has reached a predetermined temperature, optimizing the fuel consumption at a given total emission level when said DPF and SCR has reached a predetermined temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.