A Study of Unburnt Hydrocarbon Emission in Small DI Diesel Engines 1999-01-0512
The cause of unburnt hydrocarbon emission (HC) in small DI Diesel engines at light load was studied both by engine emission tests and combustion process visualizing with a common rail injection system. An optically accessible engine, which was enabled to visualize both combustion chamber and squish area, was used to investigate the behavior of spray, mixture distribution and so on. Factors supposed to be the major cause of forming HC in small DI Diesel engines, such as the direct impingement of liquid-phase fuel spray on the combustion chamber wall, the uneven formation of fuel sprays from hole to hole and the spread of the fuel droplets, mixture and flame to the squish area were investigated. Meanwhile, measures for further reducing HC were discussed.
Citation: TSURUSHIMA, T., ZHANG, L., and ISHII, Y., "A Study of Unburnt Hydrocarbon Emission in Small DI Diesel Engines," SAE Technical Paper 1999-01-0512, 1999, https://doi.org/10.4271/1999-01-0512. Download Citation
Author(s):
Tadashi TSURUSHIMA, Long ZHANG, Yoshinori ISHII
Affiliated:
ISUZU Advanced Engineering Center, Ltd.
Pages: 12
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Processes of Diesel Engine Combustion-SP-1444
Related Topics:
Diesel / compression ignition engines
Combustion chambers
Hydrocarbons
Fuel injection
Exhaust emissions
Combustion and combustion processes
Environmental testing
Emissions certification
Forming
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