New Quiescent Combustion System for Heavy–Duty Diesel Engines to Overcome Exhaust Emissions and Fuel Consumption Trade–Off

2000-01-1811

06/19/2000

Event
CEC/SAE Spring Fuels & Lubricants Meeting & Exposition
Authors Abstract
Content
In the next few years, the USA, EU, and Japan plan to introduce very stringent exhaust emissions regulations for heavy–duty diesel engines, in order to enhance the protection air quality. This builds upon the heavy–duty diesel engine exhaust emissions regulations already in effect. At the same time, improvement in fuel consumption of heavy–duty diesel engines will be very important for lowering vehicle operating costs, conserving fossil fuel resources, and reduction of CO2 (greenhouse gas) levels.
This paper presents a detailed review of a quiescent combustion system for a heavy–duty diesel engine, which offers breakthrough performance in terms of the exhaust emissions – fuel consumption trade–off, compared with the more conventional swirl supported combustion system. This conclusion is supported by experimental results comparing quiescent and swirl supported versions of various combustion system configurations. A number of numerical experiments using the KIVA II code was also carried out to investigate the fuel spray behavior, combustion and NOx formation.
The above concepts were applied to an actual engine by utilizing a common rail system, exhaust gas recirculation system, and a variable geometry turbocharger. Engine test results showed that the quiescent combustion system with these technologies achieved improved fuel consumption, meeting the Japanese long term exhaust emissions regulations by overcoming the exhaust emissions – fuel consumption trade–off.
Meta TagsDetails
DOI
https://doi.org/10.4271/2000-01-1811
Pages
15
Citation
Mori, K., Jyoutaki, H., Kawai, K., and Sakai, K., "New Quiescent Combustion System for Heavy–Duty Diesel Engines to Overcome Exhaust Emissions and Fuel Consumption Trade–Off," SAE Technical Paper 2000-01-1811, 2000, https://doi.org/10.4271/2000-01-1811.
Additional Details
Publisher
Published
Jun 19, 2000
Product Code
2000-01-1811
Content Type
Technical Paper
Language
English