scholarly journals The Effect of Split Injection on the Combustion and Emissions in DI and IDI Diesel Engines

10.5772/55232 ◽  
2013 ◽  
Author(s):  
S. Jafarmadar
Keyword(s):  
Diesel Engines ◽  
Split Injection

Combustion Modeling of Split Injection in HSDI Diesel Engines

2010 ◽  
Vol 183 (2) ◽  
pp. 180-201 ◽  
Author(s):  
Jaeman Lim ◽  
Sangyul Lee ◽  
Kyoungdoug Min
Keyword(s):  
Diesel Engines ◽  
Split Injection ◽  
Combustion Modeling

scholarly journals Incorporation of EGR and split injection for reduction of nox and soot emissions in DI diesel engines

2011 ◽  
Vol 15 (suppl. 2) ◽  
pp. 409-427 ◽  
Author(s):  
Hassan Khatamnezhad ◽  
Shahram Khalilarya ◽  
Samad Jafarmadar ◽  
Arash Nemati
Keyword(s):  
Diesel Engines ◽  
Combustion Process ◽  
Three Dimensional ◽  
Load Condition ◽  
Engine Performance ◽  
Fuel Mixture ◽  
Split Injection ◽  
Temperature Combustion ◽  
Di Diesel Engine ◽  
Reduced Temperature

In this paper, reduced temperature combustion has been investigated at high load condition of a DI diesel engine. A three dimensional CFD model for flow field, spray, air-fuel mixture formation, combustion and emissions formation processes have been used to carry out the computations. The combined effect of EGR temperature and EGR rate was analyzed to choose with consideration of engine performance. Then, the influence of different injection rates and split injection was explored at a reduced temperature combustion condition by the use of EGR. The results represent sensitiveness of various injection schemes on the combustion process and emission formation at reduced temperature condition in DI diesel engines.

DEVELOPMENT OF THE COMBUSTION CHAMBER OF GAS ENGINE, CONVERTED ON THE BASIS OF DIESELS D-120 OR D-144 ENGINES TO WORK FOR ON LIQUEFIED PETROLEUM GAS

2019 ◽  
pp. 2-8
Author(s):  
Serhii Kovalov
Keyword(s):  
Combustion Chamber ◽  
Compression Ratio ◽  
Diesel Engines ◽  
Combustion Engine ◽  
Motor Fuel ◽  
Liquefied Petroleum Gas ◽  
Gas Engine ◽  
Chamber Volume ◽  
Motor Fuels ◽  
Dynamic Cycle

The expediency of using vehicles of liquefied petroleum gas as a motor fuel, as com-pared with traditional liquid motor fuels, in particular with diesel fuel, is shown. The advantages of converting diesel engines into gas ICEs with forced ignition with respect to conversion into gas diesel engines are substantiated. The analysis of methods for reducing the compression ratio in diesel engines when converting them into gas ICEs with forced ignition has been carried out. It is shown that for converting diesel engines into gas ICEs with forced ignition, it is advisable to use the Otto thermo-dynamic cycle with a decrease in the geometric degree of compression. The choice is grounded and an open combustion chamber in the form of an inverted axisymmetric “truncated cone” is developed. The proposed shape of the combustion chamber of a gas internal combustion engine for operation in the LPG reduces the geometric compression ratio of D-120 and D-144 diesel engines with an unseparated spherical combustion chamber, which reduces the geometric compression ratio from ε = 16,5 to ε = 9,4. The developed form of the combustion chamber allows the new diesel pistons or diesel pistons which are in operation to be in operation to be refined, instead of making special new gas pistons and to reduce the geometric compression ratio of diesel engines only by increasing the combustion chamber volume in the piston. This method of reducing the geometric degree of compression using conventional lathes is the most technologically advanced and cheap, as well as the least time consuming. Keywords: self-propelled chassis SSh-2540, wheeled tractors, diesel engines D-120 and D-144, gas engine with forced ignition, liquefied petroleum gas (LPG), compression ratio of the internal com-bustion engine, vehicles operating in the LPG.

EFFECT OF SPLIT INJECTION ON DIESEL SPRAY AND COMBUSTION IN 2D PISTON CAVITY

2019 ◽  
Vol 29 (10) ◽  
pp. 895-911
Author(s):  
Kang Yang ◽  
Keiya Nishida ◽  
Hirotaka Yamakawa
Keyword(s):  
Diesel Spray ◽  
Split Injection
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