Patent ID: 6761151
Filing Date: 2004-07-13
Classification: F02D

Abstract:
A high-pressure fuel supply system of an internal combustion engine, comprising:a high-pressure portion that supplies fuel to a plurality of fuel injection valves; a high-pressure pump that supplies the fuel to the high-pressure portion; a low-pressure pump that supplies the fuel to the high-pressure pump; and a controller that sets, in view of a fuel consumption amount consumed from the high-pressure portion through the fuel injection valves and a fuel supply amount supplied to the high-pressure portion by the high-pressure pump, a preset pressure at which fuel injection is started so that a first fuel injection to each cylinder of a plurality of cylinders by each of the plurality of fuel injection valves is conducted at a pressure higher than the rated discharge pressure of the low-pressure pump, wherein the fuel injection to a first cylinder of the plurality of cylinders is started after a pressure in the high-pressure portion is raised to the preset pressure by the high-pressure pump.