Impact of Post-Injection Parameters on Soot and Hydrocarbon Emissions in a Common-Rail Heavy-Duty Diesel Engine

2020 ◽  
Author(s):  
Wang Pan ◽  
Yan Wu ◽  
Yi Jing ◽  
Huang Zizeng
Keyword(s):  
Diesel Engine ◽  
Common Rail ◽  
Hydrocarbon Emissions ◽  
Post Injection ◽  
Heavy Duty ◽  
Injection Parameters ◽  
Heavy Duty Diesel Engine ◽  
Heavy Duty Diesel

scholarly journals Effects of multiple injections on combustion and emissions in a heavy-duty diesel engine at high load and low speed

2020 ◽  
Vol 12 (12) ◽  
pp. 168781402098462
Author(s):  
Yingying Lu ◽  
Yize Liu
Keyword(s):  
Diesel Engine ◽  
Single Injection ◽  
High Load ◽  
Post Injection ◽  
Heavy Duty ◽  
Low Speed ◽  
Multiple Injections ◽  
Heavy Duty Diesel Engine ◽  
Main Injection ◽  
Heavy Duty Diesel

Advanced multiple injection strategies have been suggested for compression ignition engines in order to meet the increasingly stringent emission regulations. Experiments and simulations were used to study effects of the main-injection mode (times), the post-injection proportion, and timing on combustion and emissions in a heavy-duty diesel engine at high load and constant low speed. The results reveal the following. The NOx emissions of 1main+1post, 2main+1post, and 3main+1post injections are all lower than those of single injection; the higher the number of main-injection pluses, the lower the NOx emissions. Enough main-post injection interval is needed to ensure post and main injections are relatively independent to entrain more fresh air to decrease the soot. Over-retarded post-injection timing tends to increase the soot due to the lower in-cylinder temperature. The combined effects of formation and oxidation determine the final soot. To gain the best trade-off of NOx and soot, compared with single injection, for the three multiple injections, the lowest soot emissions are gained at post-injection proportions of 15% and post-injection timings of 25°, 30°, and 35° CA ATDC, with soot reductions of 26.7%, −34.5%, and −112.8%, and NOx reductions of 5.88%, 21.2%, and 40.3%, respectively, for 1main+1post, 2main+1post, and 3main+1post injections.

Application of Common Rail Fuel Injection System to a Heavy Duty Diesel Engine

1994 ◽  
Author(s):  
Yoshihisa Yamaki ◽  
Kazutoshi Mori ◽  
Hiroshi Kamikubo ◽  
Susumu Kohketsu ◽  
Kohji Mori ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Fuel Injection ◽  
Common Rail ◽  
Injection System ◽  
Fuel Injection System ◽  
Heavy Duty ◽  
Heavy Duty Diesel Engine ◽  
Heavy Duty Diesel

Performance of Euro III common rail heavy duty diesel engine fueled with Gas to Liquid

2009 ◽  
Vol 86 (10) ◽  
pp. 2257-2261 ◽  
Author(s):  
Hewu Wang ◽  
Han Hao ◽  
Xihao Li ◽  
Ke Zhang ◽  
Minggao Ouyang
Keyword(s):  
Diesel Engine ◽  
Common Rail ◽  
Heavy Duty ◽  
Heavy Duty Diesel Engine ◽  
Gas To Liquid ◽  
Heavy Duty Diesel

Influence of EGR on Post-Injection Effectiveness in a Heavy-Duty Diesel Engine Fuelled with n-Heptane

2014 ◽  
Vol 7 (4) ◽  
pp. 1851-1862 ◽  
Author(s):  
Sushant S. Pandurangi ◽  
Nicolò Frapolli ◽  
Michele Bolla ◽  
Konstantinos Boulouchos ◽  
Yuri M. Wright
Keyword(s):  
Diesel Engine ◽  
Post Injection ◽  
Heavy Duty ◽  
Heavy Duty Diesel Engine ◽  
Heavy Duty Diesel

scholarly journals Pre- and post-injection flow characterization in a heavy-duty diesel engine using high-speed PIV

2012 ◽  
Vol 53 (3) ◽  
pp. 731-746 ◽  
Author(s):  
R. P. C. Zegers ◽  
C. C. M. Luijten ◽  
N. J. Dam ◽  
L. P. H. de Goey
Keyword(s):  
Diesel Engine ◽  
High Speed ◽  
Post Injection ◽  
Heavy Duty ◽  
Injection Flow ◽  
Flow Characterization ◽  
Heavy Duty Diesel Engine ◽  
Heavy Duty Diesel
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