gasoline direct-injection engines
Internal flow and cavitation in a multi-hole injector for gasoline direct-injection engines
... one injection hole by a strong vortex around the hole axis, as shown in the image sequence of Figure 18, which then extends upstream into the hole inlet where it triggers a bubble creation mechanism at the core of ...
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Spray structure from double fuel injection in multihole injectors for gasoline direct-injection engines
... double injection spray images revealed that the overall spray structure of the first injection remains the same as those of single injection as presented previously in [15, 19] (in those ...
17
Investigation of Spray and Combustion of a Piezoelectric Fuel Injector for Gasoline Direct Injection Engines
... single injection. In this study, the injection duration of experiments is set as ...one injection ends at around 430 μs after the start of injection trigger (ASOIT) due to the delay caused by ...
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A REVIEW ON LASER INDUCED IGNITION OF GASOLINE DIRECT INJECTION ENGINES
... Although the cost and packaging complexities of the laser ignition systems have dramatically reduced to an affordable level for many applications, they are still prohibitive for important and high-volume applications ...
7
Characterisation of soot in oil from a gasoline direct injection engine using Transmission Electron Microscopy
... Studies of soot in automotive lubricant oil have mainly focused on particulate matter from diesel engines or carbon black. The percentage by weight of soot in automotive lubricants, assessed using ...
8
Comparative nanostructure analysis of gasoline turbocharged direct injection and diesel soot in oil with carbon black
... Soot samples from the two GTDI engines appear to have more diverse nanostructures. Some particles exhibited a similar core- shell structure to the diesel soot particles (Fig. 1j,m) including the presence of ...
11
Direct Fuel Injection of LPG in Small Two-Stroke Engines
... fuel injection (DI) is a fairly mature technology that has shown the ability to greatly reduce emissions from two-stroke engines ...of Gasoline Direct Injection (GDI) retrofit ...
7
Experimental Investigation of Spray and Combustion of Gasoline Direct Injection under Different Ambient Conditions.
... (SI) engines, low octane gasoline-like fuels might be desirable in compression ignition (CI) ...either gasoline or diesel, there is an additional benefit in terms of well-to-wheel CO2 emissions and ...
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A study of fuel spray structure and its relationship to emissions and performance of a gasoline direct injection engine
... PFI engines, operation is possible with relatively low fuel pressures, as the spray is very often impacted on hot port and valve surfaces from where it ...diesel. Gasoline does not have this ...
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Multihole injectors for direct-injection gasoline engines
... 6.4 RECOMMENDATIONS FOR FUTURE WORK It can be argued that the presented work provided useful information about gasoline multi-hole high-pressure injector nozzle flow, spray characterisat[r] ...
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Effect of Cylinder Air Pressure and Fuel Injection Pressure on Combustion Characteristics of Direct Injection (DI) Diesel Engine Fueled with Diesel and Gasoline
... IDI engine is less efficient than the DI engine. This is because the high velocity air motion in the combustion chamber causes high heat transfer rates resulting in greater loss of fuel energy. The lower efficiency of ...
8
Computational Fluid Dynamics (CFD) Modelling of Mixture Formation in Gasoline Direct Injection (GDI) Engine
... the Gasoline Direct Injection (GDI) engines which have the potential to meet these requirements are being improved on especially the mixture formation to the burning of the ...late ...
13
Evaluation of Lean Operation Limit on Performance Features of Stratified Charge Gasoline Direct Injection (GDI) Engine
... combustion engines, the cylinder pressure profile variation is caused by uncertainty in charge inlet and its imperfect mix during combustion, moreover, ignition time when combustion starts is also important to ...
7
Computational Investigations On A Four Cylinder Four Stroke Cycle Spark Ignition Engine With Hydrogen And Gasoline Direct Injection
... conventional gasoline or petrol in direct injection modes of fuel ...combustion engines simulation software, AVL ...of engines. The modeled engine was first run in the gasoline ...
17
Effects of intake flow and coolant temperature on the spatial fuel distribution in a direct-injection gasoline engine by PLIF technique
... DISI engines is to prepare fuel/air mixture towards the spark plug over the full range of engine operating conditions, as the fuel/air mixing process is influenced by many time dependant ...fuel injection ...
25
Performance and Emission Characteristics of MPFI Engine by Using Gasoline - Ethanol Blends
... fuel injection injects fuel into the intake ports just upstream of each cylinder's intake valve, rather than at a central point within an intake ...which injection is timed to coincide with each cylinder's ...
7
Cfd Modeling of the In Cylinder Flow In Direct-Injection Diesel Engines
... combustion engines, two different types of four-stroke combustion processes are traditionally used; spark ignited (SI) and compression ignited (CI) ...in gasoline engines, where the fuel is mixed ...
9
Performance Analysis of Gasoline Direct Injection inTwo Stroke Spark-ignition Engines
... a gasoline engine it ends up close to the ...traditional gasoline engines. In GDI engines the ports are not used to mix the fuel and ...GDI engines without a throttle ...aggressive ...
8
Spray characteristics of a multi-hole injector for direct-injection gasoline engines
... spray-guided direct injection gasoline engines, have been characterised in terms of droplet velocities/diameters at injection pressures of 120 and 200bar and chamber pressures varying ...
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Fuel spray modelling in direct-injection diesel and gasoline engines
... CHAPTER 7 Conclusions and Recommendationsfor Future Work The investigation of the internal nozzle flow and subsequentspray development from injection for direct the injection high-pressu[r] ...
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