Novel Micro bowls combustion chamber piston for Diesel engines
2022-01-0541
03/29/2022
- Event
- Content
- Pollution is a major concern in India, Government has moved to BS-VI emission norms in 2020 across the country directly from BS-IV skipping BS-V. Exhaust emissions are the non-useable gaseous waste products produced during the combustion process. "Exhaust gas" is the standard term used to describe the waste gas from internal combustion engines. In addition to harmless products such as water vapor, carbon dioxide and nitrogen, engine exhaust also contains pollutants, which are harmful to humanity and the environment: carbon monoxide (CO), hydrocarbons (HC) and nitrogen oxide (NOx). Exhaust emission can be controlled broadly into two category, 1) Before Combustion: Air fuel control equipment. 2) After combustion: After treatment equipment. In these both areas, much of work has been done so far to achieve BS-VI emissions. However, one spot left out, meeting of these two categories is combustion chamber. In this paper, novel approach has been tried out, whether after treatment cost can be optimised by achieving some emissions in combustion chamber design itself. Therefore, the unique idea generated, separate combustion chambers provided for each jet of injector hole that is seven micro bowls. In this bowls swirl is common for all bowls & each micro bowl has tumble. One set of pistons machined and tested on one of the 5-litre engine on test bed and compared with the existing BS-IV emissions, in result, smoke found more. With this research, micro bowl piston opened up new ideas for emission try out, by changing the jet locations on micro bowls and changing the tumble and swirl.
- Citation
- Hipparagi, S., "Novel Micro bowls combustion chamber piston for Diesel engines," SAE Technical Paper 2022-01-0541, 2022, .