Ducting system for feeding air and exhaust gases to an internal combustion engine and for discharging the exhaust gases produced by the internal combustion engine from the internal combustion engine
US9151196B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2013 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Dec 11, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
In one embodiment, a ducting system comprises a feed duct for feeding air and exhaust gases to an internal combustion engine, a discharge duct for discharging the exhaust gases produced by the internal combustion engine from the internal combustion engine, in which one or more exhaust gas aftertreatment units are arranged for aftertreatment of the exhaust gases, and a heating device arranged in the feed duct. The heating device is configured to perform a heating process for preheating the air that is fed to the internal combustion engine. A duration of the heating process and/or heat output given off by the heating device is controlled as a function of a variable approximately representing a state of ageing of at least one of the one or more exhaust gas treatment units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.