Electric fuel pump is an important part of automobile fuel feed system, which absorbs fuel from fuel tank and provide it to the air crocks of engine by fuel injection.
Based on the 175F type swirlprechamber air cooling diesel engine, through redesigning cylinder head and piston etc. , new 175F type direct injectionair cooling diesel engine is formed.
The turbulent flow characteristics in cylinders of direct injection diesel engine under different air swirl ratios are analyzed by multi dimensional simulation methods.