INTERNAL COMBUSTION ENGINES WITH DIRECT LIGHT FUEL INJECTION: PROBLEMS AND PROSPECTS

Author(s):  
Никулин ◽  
M. Nikulin ◽  
Новиков ◽  
A. Novikov

In this article gasoline engines of internal combustion with direct fuel injection, their advantages and shortcomings are considered, comparative analysis of two most effective systems allowing to use gas as an alternative type of fuel.

2018 ◽  
Author(s):  
Diogo Tatsuharu Kawano ◽  
Luís Otávio de Barros Mazon ◽  
Rafael Pereira Barretto Faria ◽  
Renato de Castro Carvalho Coutinho ◽  
Samuel Nunes Castelo ◽  
...  

2010 ◽  
Vol 140 (1) ◽  
pp. 3-13
Author(s):  
Jacek HUNICZ ◽  
Andrzej NIEWCZAS ◽  
Paweł KORDOS

Homogeneous charge compression ignition (HCCI) is nowadays a leading trend in the development of gasoline internal combustion engines. The application of this novel combustion system will allow to comply with future legislations concerning the exhaust emissions including carbon dioxide. This paper presents a design and implementation of a research engine with a direct fuel injection and the capability of HCCI combustion via an internal gas recirculation and a negative valves overlap (NVO). The technical approach used in the engine allowed an autonomous HCCI operation at variable loads and engine speeds without the need of a spark discharge. Experiments were conducted at a wide range of valve timings providing data which allowed an assessment of a volumetric efficiency and exhaust gas recirculation (EGR) rate. Permissible range of air excess coefficient, providing stable and repeatable operation has also been identified. The use of direct gasoline injection benefited in the improvement of the start of the combustion (SOC) and heat release rate control via the injection timing.


The article presents an assessment of the dependence of the fuel supply on the wave phenomena in the highpressure line that occur during multiple injection. After injection, fluctuations in the fuel pressure in the fuel injection line occur, which significantly affect the cycle delivery and injection behavior of subsequent multiple injections. A promising design of a fuel rail is presented and a method for controlling wave phenomena in a highpressure line of a Common Rail is proposed. Keywords wave phenomena; multiple injection; Common Rail; electrohydraulic injector; fuel rail


2021 ◽  
Author(s):  
Zhiyu Han

Simulation and Optimization of Internal Combustion Engines provides the fundamentals and up-to-date progress in multidimensional simulation and optimization of internal combustion engines. While it is impossible to include all the models in a single book, this book intends to introduce the pioneer and/or the often-used models and the physics behind them providing readers with ready-to-use knowledge. Key issues, useful modeling methodology and techniques, as well as instructive results, are discussed through examples. Readers will understand the fundamentals of these examples and be inspired to explore new ideas and means for better solutions in their studies and work. Topics include combustion basis of IC engines, mathematical descriptions of reactive flow with sprays, engine in-cylinder turbulence, fuel sprays, combustions and pollutant emissions, optimization of direct-injection gasoline engines, and optimization of diesel and alternative fuel engines.


Sign in / Sign up

Export Citation Format

Share Document