Diesel engine with direct fuel injection pref. for heavy goods vehicles has two types of differently charged injection nozzles, and counter flow double injection valves

摘要

The engine has two types of differently charged injection nozzles (1,2), and double intake valves with counter flow action. The fuel volume to be injected is distributed in a symmetrical or asymetrical ratio over the injection nozzles, dependent upon RPM resp. engine parameters. Each cylinder head or piston base has a combustion chamber eddy chamber (4,6). Each cylinder has two intake and two exhaust valves. With increasing demand above 1000RPM, only the second nozzle (2) is charged with more fuel, while the first nozzle (1) is supplied with a constant fuel volume.