Effect of injection strategy on fuel-air mixing and combustion process in a direct injection diesel rotary engine (DI-DRE)

2017 ◽  
Vol 154 ◽  
pp. 68-80 ◽  
Author(s):  
Wei Chen ◽  
Jianfeng Pan ◽  
Baowei Fan ◽  
Yangxian Liu ◽  
Otchere Peter
Keyword(s):  
Direct Injection ◽  
Combustion Process ◽  
Injection Strategy ◽  
Rotary Engine ◽  
Air Mixing

The influence of injection strategy on mixture formation and combustion process in a direct injection natural gas rotary engine

2017 ◽  
Vol 187 ◽  
pp. 663-674 ◽  
Author(s):  
Baowei Fan ◽  
Jianfeng Pan ◽  
Wenming Yang ◽  
Wei Chen ◽  
Stephen Bani
Keyword(s):  
Natural Gas ◽  
Direct Injection ◽  
Combustion Process ◽  
Mixture Formation ◽  
Injection Strategy ◽  
Rotary Engine

Effect of injection strategy on the mixture formation and combustion process in a gasoline direct injection rotary engine

Fuel ◽  
2021 ◽  
Vol 304 ◽  
pp. 121428
Author(s):  
Changwei Ji ◽  
Ke Chang ◽  
Shuofeng Wang ◽  
Jinxin Yang ◽  
Du Wang ◽  
...  
Keyword(s):  
Direct Injection ◽  
Combustion Process ◽  
Gasoline Direct Injection ◽  
Mixture Formation ◽  
Injection Strategy ◽  
Rotary Engine

Combined effect of injection timing and injection angle on mixture formation and combustion process in a direct injection (DI) natural gas rotary engine

Energy ◽  
2017 ◽  
Vol 128 ◽  
pp. 519-530 ◽  
Author(s):  
Baowei Fan ◽  
Jianfeng Pan ◽  
Wenming Yang ◽  
Zhenhua Pan ◽  
Stephen Bani ◽  
...  
Keyword(s):  
Natural Gas ◽  
Direct Injection ◽  
Combustion Process ◽  
Combined Effect ◽  
Injection Timing ◽  
Mixture Formation ◽  
Injection Angle ◽  
Rotary Engine

scholarly journals Experimental study of multiple pilot injection strategy in an automotive direct injection diesel engine

2018 ◽  
Vol 234 ◽  
pp. 03007
Author(s):  
Plamen Punov ◽  
Tsvetomir Gechev ◽  
Svetoslav Mihalkov ◽  
Pierre Podevin ◽  
Dalibor Barta
Keyword(s):  
Experimental Study ◽  
Diesel Engine ◽  
Diesel Engines ◽  
Direct Injection ◽  
Combustion Process ◽  
Injection Timing ◽  
Pilot Injection ◽  
Injection Strategy ◽  
Direct Injection Diesel Engine ◽  
Rate Of Heat Release

The pilot injection strategy is a widely used approach for reducing the noise of the combustion process in direct injection diesel engines. In the last generation of automotive diesel engines up to several pilot injections could occur to better control the rate of heat release (ROHR) in the cylinder as well as the pollutant formation. However, determination of the timing and duration for each pilot injection needs to be precisely optimised. In this paper an experimental study of the pilot injection strategy was conducted on a direct injection diesel engine. Single and double pilot injection strategy was studied. The engine rated power is 100 kW at 4000 rpm while the rated torque is 320 Nm at 2000 rpm. An engine operating point determined by the rotation speed of 1400 rpm and torque of 100 Nm was chosen. The pilot and pre-injection timing was widely varied in order to study the influence on the combustion process as well as on the fuel consumption.

Penetration and Vaporization of Diesel Fuel Sprays

1969 ◽  
Vol 184 (10) ◽  
pp. 147-170 ◽  
Author(s):  
R. Burt ◽  
K. A. Troth
Keyword(s):  
Combustion Chamber ◽  
Diesel Engines ◽  
Direct Injection ◽  
Combustion Process ◽  
Major Effect ◽  
Engine Fuel ◽  
Liquid Droplets ◽  
Fuel Sprays ◽  
Air Movement ◽  
Air Mixing

In the diesel engine, fuel is injected into the hot, compressed air in the combustion chamber. Thus the process of diesel combustion is essentially inhomogeneous, and the mixing of the fuel and air in the combustion chamber dominates the whole combustion process. Since fuel–air mixing is so important the distribution of the injected fuel has a major effect on combustion performance. This is particularly true of direct-injection diesel engines which have relatively low rates of air movement. In all diesel engines, fuel is injected into the combustion chamber at high pressure through small nozzles. The high-velocity liquid jet atomizes, after emerging from the nozzle, into a spray of liquid droplets. The penetration, distribution, and vaporization of the sprays, together with the air movement, govern the mixing of fuel and air. The penetration of fuel sprays is dealt with in Part 1 of the paper; Part 2 describes a study of the vaporization of fuel sprays.

Sign in / Sign up

Export Citation Format

Share Document