Modern spark ignition engines mostly use one injection system to deliver gasoline into the
combustion chamber, using either direct injection or port fuel injection. Both technologies …

EGR is a useful means to improve fuel economy in spark-ignited gasoline engines,
especially under part-load conditions by means of reducing throttling losses. There is also a …

Advances in fuel injector technology have enabled research and development on a large
variety of direct injection spark ignition (DISI) engine fueling strategies targeted to improve …

The increasing popularity of plug-in hybrid vehicles has prompted investigation of options
such as range extender units, which may include small engines powered by biofuels. To …

Dual injection fuel systems combine the knock and fuel economy benefits of gasoline direct
injection (GDI) technology with the lower particulate emissions of port fuel injection (PFI) …

Gasoline direct injection (GDI) engines are well known for their ability to operate at the
stratified fuel-air mixture, and thereby they are highly efficient than port fuel injection (PFI) …

Water injection has been proven both to reduce emissions of nitrogen oxides and to improve
fuel conversion efficiency via knock limit extension in turbocharged spark ignition (SI) …

This thesis addresses the drawbacks of current generation downsized boosted gasoline
powered engines through experiments that were designed to push the limits of thermal …