Study of Abnormal Fuel Delivery Characteristics in High Pressure Injection Systems 821073

Recently, high pressure injection systems have been widely adopted to reduce black smoke, exhaust gas emission and fuel consumption and accordingly, many troubles have arisen on an engine or a vehicle. One of them is ‘surging problem’ on a vehicle at lower speed and load ranges. This surging problem has strong correlations with ‘abnormal fuel delivery characteristics’.
The purpose of this paper is to make clear the cause of these abnormal characteristics and to find out the means to avoid them.


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