Patent ID: 8100111

Claim:
A fuel injection system for an internal combustion engine of the common rail type, comprising: a first rail and a second rail communicating with the first rail via a connecting line; a distributor block that is integrated with the first rail, thereby forming a diverter rail; a high-pressure pump, which furnishes the fuel to the distributor block; and the first rail and the second rail each having a number of connections of injector supply lines corresponding to a number of cylinders of the engine, wherein a volume of the diverter rail is in a range between 0.5 and 1 times the difference in volume between a total volume of the connecting line and of the second rail on the one hand, and a volume of the first rail on the other hand for the volume of the distributor block, plus the volume of the first rail, which in equation form is represented as V D =M(V C +V 2 −V 1 )+V 1 , where: V D =volume of diverter rail; V 1 =volume of first rail; V 2 =volume of second rail; V C =volume of connecting line; and M=factor between 0.5 and 1.