Patent ID: 6457453
Filing Date: 2002-10-01
Classification: F02D,F02M,Y02T

Abstract:
An accumulator fuel-injection apparatus, comprising:a first accumulator for storing high-pressure fuel pressurized by a pump; a fuel injection nozzle, connected with said first accumulator through a fuel passage, for injecting fuel into a combustion chamber of an engine; a control valve for controlling discharge of the high-pressure fuel in said first accumulator toward a downstream-side of the fuel passage; a second accumulator, connected with the fuel passage on a downstream-side of the control valve through a branch passage, for storing low-pressure fuel having a pressure lower than the pressure of the high-pressure fuel in said first accumulator; and fuel control means for opening said control valve for a short time between auxiliary short injection and main injection and for opening said control valve in the course of the main injection, while the auxiliary short injection and the main injection are carried out, in this order with an interval between through said fuel injection nozzle.