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 Investigation into the effect of different fuels on ignition delay of M-type diesel combustion process

2008 ◽  
Vol 12 (1) ◽  
pp. 103-114 ◽  
Author(s):  
Dzevad Bibic ◽  
Ivan Filipovic ◽  
Ales Hribernik ◽  
Boran Pikula
Keyword(s):  
Diesel Engine ◽  
Ignition Delay ◽  
Fuel Injection ◽  
Direct Injection ◽  
Combustion Process ◽  
Injection System ◽  
Biodiesel Fuel ◽  
Injection Timing ◽  
Injection Angle ◽  
Start Of Injection

An ignition delay is a very complex process which depends on a great number of parameters. In practice, definition of the ignition delay is based on the use of correlation expressions. However, the correlation expressions have very often limited application field. This paper presents a new correlation which has been developed during the research project on the direct injection M-type diesel engine using both the diesel and biodiesel fuel, as well as different values of a static injection timing. A dynamic start of injection, as well as the ignition delay, is defined in two ways. The first approach is based on measurement of a needle lift, while the second is based on measurement of a fuel pressure before the injector. The latter approach requires calculation of pressure signals delay through the fuel injection system and the variation of a static advance injection angle changing. The start of a combustion and the end of the ignition delay is defined on the basis of measurements of an in-cylinder pressure and its point of separation from a skip-fire pressure trace. The developed correlation gives better prediction of the ignition delay definition for the M-type direct injection diesel engine in the case of diesel and biodiesel fuel use when compared with the classic expression by the other authors available in the literature.

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
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