Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Port Fuel Injection"”.
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Knock limits in spark ignited direct injected engines using gasoline/ethanol blends
Direct Fuel Injection (DI) extends engine knock limits compared to Port Fuel Injection (PFI) by utilizing the in-cylinder charge cooling effect due to fuel evaporation. The use of gasoline/ethanol blends in DI is therefore especially advantageous due to the high heat of vaporization of ethanol. …
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Control Structures for Low-Emission Combustion in Multi-Cylinder Engines
… a completely or partially homogeneous mixture of fuel and air prior to ignition through compression. The long ignition delay required to form this homogeneous mixture makes the combustion process less predictable and inherently more difficult to control. This thesis summarizes work on control …
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Investigation of Binary Mixtures of N-Butanol and Biodiesel in Reactive Control Compression Ignition
… Combustion Ignition (RCCI) obtained by port fuel injection (PFI) of n-butanol and direct injection (DI) of biodiesel was compared with an in cylinder directly injected blend of n-butanol and biodiesel with the same mass ratio of n-butanol to biodiesel which change with respect to load. …
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In cylinder liquid fuel visualization during cold start
In recent years carburetor injection systems in spark ignited (SI) engines have been replaced with port-fuel injection systems, and as a result there has been a significant increase in the levels of hydrocarbon (HC) emissions from SI engines during their cold start period. The presence of liquid …
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Computational Investigation of Ethanol and Bifuel Feasibility in Solstice Engine
A Gasoline Direct Injection (GDI) engine enables an increased fuel efficiency and higher power output than a conventional Port Fuel Injection (PFI) system. By injecting pressurized fuel straight into each cylinder of an internal-combustion engine, the degree of fuel atomization is increased, as …
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Assessment of the factors influencing PN emission in a DISI engine under cold-start condition
Due to their advantages in higher fuel efficiency and torque compared to conventional port fuel injection (PFI) engines, direct injection spark ignition (DISI) engines have become dominant in gasoline-fueled engines. However, DISI engines have a significant drawback in particulate matter (PM) …
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Liquid fuel transport into the cylinder in spark ignition engines
Liquid fuel inflow into the cylinder is considered an important source of exhaust hydrocarbon (HC) emissions from automotive spark ignition engines particularly during the start-up and subsequent warm up period. As fuel does not readily vaporize under cold engine conditions, significant quantities …
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Combustion Visualization And Particulate Matter Emission Of A Gdi Engine By Using Gasoline And E85
… and product development. Gasoline direct injection (GDI) engines have been popularized due to its higher power density, fuel efficiency, and the possibility for advanced engine technologies over conventional port-fuel-injection (PFI) gasoline engines. However, many issues are heavily …
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A comprehensive analysis of natural gas direct injection and of mixture formation in spark ignition engines
The transportation sector is becoming increasingly linked to environmental problems, with a technology relying heavily on the exploitation of not renewable energies: the combustion of hydrocarbons in internal combustion engine (ICE). Since this is still expected to be the main technical solution to …