By H. Zhao
Direct injection permits exact keep watch over of the fuel/air mix in order that engines could be tuned for better strength and gasoline economic system. This needs to be balanced opposed to elevated gear expenses and emissions, offering ongoing study demanding situations in bettering the know-how for advertisement functions. this crucial e-book experiences the technological know-how and know-how of other kinds of DI combustion engines and their fuels. 5 major sections offer an summary of the state-of-the-art, overlaying gas DI engines; either light-duty and heavy-duty DI diesel engines; substitute fuels and aftertreatment units; and complicated modeling and experimental techniques.
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Additional info for Advanced Direct Injection Combustion Engine Technologies and Development: Gasoline and Gas Engines, Volume 1
11 Cylinder head BMW (source: BMW). strokes, in addition to multiple injection operations, possible. A three-cylinder axial-piston pump with integrated delivery control valve with a combined pressure and delivery control function compresses the fuel up to a maximum pressure of 200 bar. The fuel arrives at the injectors via short separate lines and a common rail with integrated pressure sensor. 1. The stratified charge range of an engine with gasoline direct injection and spray-guided combustion system is shown in Fig.
This results in additional fuel savings. Although, at the time of its launch, the Lupo FSI was compliant with Euro III legislation, the engine also met the more stringent Euro IV values. A low-volume pre-catalytic converter with a three-way catalyst section was subsequently installed near the engine, combined with a NOx storage converter installed on the underbody. VW was the first vehicle manufacturer in the world to use a NOx sensor downstream of the NOx catalytic converter to optimise nitrogen oxide conversion.
2002). However, the ever more stringent emission legislation, the variation in fuel quality, and the additional cost of lean-burn aftertreatment have hindered the market penetration of stratified lean-burn combustion technologies. The current focus of the automotive industry is the development of high-performance boosted gasoline engines through homogeneous charge operation. The fuel economy benefit is to be gained through engine downsizing. In addition, the introduction of more advanced valve actuation systems, turbo or/and supercharging, and in-cylinder pressure sensing provides the opportunity for the utilisation of premixed and diluted low temperature combustion, including CAI/HCCI combustion, to achieve simultaneous reductions in CO2 emissions and pollutant emissions.