Patent ID: 6776140
Filing Date: 2004-08-17
Classification: F02B,F02D,F02F,F02M,Y02T

Abstract:
A common rail fuel supply system for an internal combustion engine having a plurality of cylinders, said system comprising:a pumping device for conveying fuel from a low pressure region to a high pressure region, said pumping device comprising one of two high pressure pumps and one high pressure pump having two pump elements; a pressure accumulator line comprising at least two separate accumulator units and feed lines connecting said accumulator units to define a flow direction, each said accumulator unit having a pair of opposed accumulator covers and an accumulator volume for at most about two cylinders, said covers having integrated therein all functional units for fuel delivery and transfer; a plurality of fuel injectors for respective said cylinders, each said injector being connected to a respective one of said covers; a pump accumulator arranged in the high pressure region between the pumping device and the pressure accumulator line, said pump accumulator issuing hydraulically into one of said accumulator covers for fuel conveyance; and hydraulic means for scavenging said fuel supply system connected to one of said covers.