Influence of Disturbances in the Process of Fuel Injection on the Working Processes in the Cylinder Diesel Engine
Apstrakt
Unevenness of working processes in diesel engine cylinders can happen for several reasons. The two most influential factors to
this phenomenon, which are related to disturbances in the fuel injection process are: disturbances in terms of the current
position (rotation angle) of the crankshaft when the fuel injection in one of the cylinders starts, so-called pre-injection angle,
and disturbances in the quantity of fuel that is supplied to individual cylinders during one work cycle, the so-called cycle
amounts of fuel. These disturbances are more prominent in classical, mechanical fuel injection systems (high-pressure pump,
pump-injector, etc.), and very often can not be prevented during the out engine testing and the fuel injection system
adjustments. The simulation of disturbances described under real operating conditions of diesel engines, and expanding the
knowledge of their individual and joined impact on the working processes in cylinders, is not at all simple. However, toda...y
there are commercial software which have built-in modules based on the proven equations of thermodynamics, combustion
theory and the theory of flow, which makes it possible to carry out these simulations by using a computer. One such software
is AVL BOOST. The simulation results obtained using this and similar software can be more reliable than simulations in real
conditions of the engine, because in the mechanical fuel injection system it is very difficult to quantify the degree of the
disturbance which is to be simulated. The given results can be used to develop methods of identifying the impact of described
disturbances on the mean indicated pressure of each cylinder, as well as the entire engine, a more accurate assessment of
mechanical losses (degree of mechanical utility), etc.
Ključne reči:
IC engine / diesel engine / engine cylinder / working process / fuel injection / pre-injection angle / pressure measurement.Izvor:
Scientific Technical Review, 2016, 66, 1, 10-17Izdavač:
- Belgrade : Military Technical Institute
Finansiranje / projekti:
- VTI Beograd
Kolekcije
Institucija/grupa
Mašinski fakultetTY - JOUR AU - Bulatović, Željko AU - Knežević, Dragan AU - Milić, Miodrag PY - 2016 UR - https://machinery.mas.bg.ac.rs/handle/123456789/6074 AB - Unevenness of working processes in diesel engine cylinders can happen for several reasons. The two most influential factors to this phenomenon, which are related to disturbances in the fuel injection process are: disturbances in terms of the current position (rotation angle) of the crankshaft when the fuel injection in one of the cylinders starts, so-called pre-injection angle, and disturbances in the quantity of fuel that is supplied to individual cylinders during one work cycle, the so-called cycle amounts of fuel. These disturbances are more prominent in classical, mechanical fuel injection systems (high-pressure pump, pump-injector, etc.), and very often can not be prevented during the out engine testing and the fuel injection system adjustments. The simulation of disturbances described under real operating conditions of diesel engines, and expanding the knowledge of their individual and joined impact on the working processes in cylinders, is not at all simple. However, today there are commercial software which have built-in modules based on the proven equations of thermodynamics, combustion theory and the theory of flow, which makes it possible to carry out these simulations by using a computer. One such software is AVL BOOST. The simulation results obtained using this and similar software can be more reliable than simulations in real conditions of the engine, because in the mechanical fuel injection system it is very difficult to quantify the degree of the disturbance which is to be simulated. The given results can be used to develop methods of identifying the impact of described disturbances on the mean indicated pressure of each cylinder, as well as the entire engine, a more accurate assessment of mechanical losses (degree of mechanical utility), etc. PB - Belgrade : Military Technical Institute T2 - Scientific Technical Review T1 - Influence of Disturbances in the Process of Fuel Injection on the Working Processes in the Cylinder Diesel Engine EP - 17 IS - 1 SP - 10 VL - 66 DO - 10.5937/STR1601014B DO - 1820-0206 ER -
@article{ author = "Bulatović, Željko and Knežević, Dragan and Milić, Miodrag", year = "2016", abstract = "Unevenness of working processes in diesel engine cylinders can happen for several reasons. The two most influential factors to this phenomenon, which are related to disturbances in the fuel injection process are: disturbances in terms of the current position (rotation angle) of the crankshaft when the fuel injection in one of the cylinders starts, so-called pre-injection angle, and disturbances in the quantity of fuel that is supplied to individual cylinders during one work cycle, the so-called cycle amounts of fuel. These disturbances are more prominent in classical, mechanical fuel injection systems (high-pressure pump, pump-injector, etc.), and very often can not be prevented during the out engine testing and the fuel injection system adjustments. The simulation of disturbances described under real operating conditions of diesel engines, and expanding the knowledge of their individual and joined impact on the working processes in cylinders, is not at all simple. However, today there are commercial software which have built-in modules based on the proven equations of thermodynamics, combustion theory and the theory of flow, which makes it possible to carry out these simulations by using a computer. One such software is AVL BOOST. The simulation results obtained using this and similar software can be more reliable than simulations in real conditions of the engine, because in the mechanical fuel injection system it is very difficult to quantify the degree of the disturbance which is to be simulated. The given results can be used to develop methods of identifying the impact of described disturbances on the mean indicated pressure of each cylinder, as well as the entire engine, a more accurate assessment of mechanical losses (degree of mechanical utility), etc.", publisher = "Belgrade : Military Technical Institute", journal = "Scientific Technical Review", title = "Influence of Disturbances in the Process of Fuel Injection on the Working Processes in the Cylinder Diesel Engine", pages = "17-10", number = "1", volume = "66", doi = "10.5937/STR1601014B, 1820-0206" }
Bulatović, Ž., Knežević, D.,& Milić, M.. (2016). Influence of Disturbances in the Process of Fuel Injection on the Working Processes in the Cylinder Diesel Engine. in Scientific Technical Review Belgrade : Military Technical Institute., 66(1), 10-17. https://doi.org/10.5937/STR1601014B
Bulatović Ž, Knežević D, Milić M. Influence of Disturbances in the Process of Fuel Injection on the Working Processes in the Cylinder Diesel Engine. in Scientific Technical Review. 2016;66(1):10-17. doi:10.5937/STR1601014B .
Bulatović, Željko, Knežević, Dragan, Milić, Miodrag, "Influence of Disturbances in the Process of Fuel Injection on the Working Processes in the Cylinder Diesel Engine" in Scientific Technical Review, 66, no. 1 (2016):10-17, https://doi.org/10.5937/STR1601014B . .