Flexibly Controlled Injection Rate Shape with Next Generation common Rail System for Heavy Duty DI Diesel Engines

摘要

Injection rate shape control is one feature of a diesel fuel injection system that is strongly desired at this time. However, in the conventional Common Rail System (CRS), it is difficult to control the injection rate because the injection pressure is constant during the injection period, resulting in a nearly rectangular rate shape. Thus, in order to achieve injection rate control in a CRS, a Next-generation common Rail System (NCRS) was Designed and the prototype system was fabricated.