Search Results

In order to boost the torque of a 4-stroke cycle diesel engine, a crankcase-supercharged 4-stroke cycle diesel engine was made and tested in the firing mode. As a result, a remarkable reduction of smoke density and brake specific fuel consumption compared with the naturally aspirated baseline diesel engine was obtained. Additionally, a Jet Air Port (JAP), which was opened and closed by piston movement near bottom dead center, was installed. The JAP utilized air furnished by the crankcase-supercharging system. A reduction of smoke density and brake specific fuel consumption compared with the naturally-aspirated baseline diesel engine was found.