Publisher's Synopsis
Combustion engines are still the major propulsion devices for many mechanical equipment including mostly all automotive vehicles. The nature of the mixture formation and the followed combustion processes realized in a direct injection engines, indicate a lack of mechanisms for controlling the mixture formation and homogenization of the sequence of process and, hence, do not allow homogeneous combustion. Currently, one of the worldwide most used energy sources are fuels derived from oil, such as hydrocarbons, that burn with oxygen releasing large amount of thermal energy. This energy can be transformed into mechanical work by mean of internal combustion engines. Internal combustion engine is a device that allows obtaining mechanical energy from the thermal energy stored in a fluid due to a combustion process. The increase in the engine efficiency is basically the result of the change in the fuel supply method, which is by proper regulation of the petrol-air mixture composition depending on the rotational speed and load. This is why the lean mixture combustion in the gasoline engine. This volume presents state of the art reviews on the science and technology of different types of DI combustion engines and their fuels. This volume reviews the benefits of direct injection in the gasoline engine in terms of fuel consumption and emission. The effect of stratified and homogeneous mode on the performance parameter along with combustion system, it's extending feasibility and complexity in the individual and combine mode of operation is reviewed in detail. Fuel injection in combustion engines belongs to the most important working processes. Particularly, in direct injection (DI) engines, both gasoline and diesel one, it truly triggers and controls combustion, influencing all output engine performances together with exhaust emissions. Thus, improving of combustion engines should always consider fuel injection optimization, before other kinds of engine processes are being tested. This volume will be of valuable reference for automotive researchers and engineers and graduate engineering students.
