Patent ID: 7328687
Filing Date: 2008-02-12
Classification: F02B,F02D,F02M

Abstract:
1. A fuel supply apparatus for an internal combustion engine, comprising: a low-pressure fuel system applying pressure to a fuel within an accumulator by using a first low-pressure pump and supplying the fuel to low-pressure fuel supply means through a first low-pressure pipe; a high-pressure fuel system applying pressure to the fuel in said accumulator by using a second low-pressure pump, applying further pressure through a second low-pressure pipe to the fuel by a high-pressure pump driven by the internal combustion engine, and supplying the fuel to high-pressure fuel supply means provided separately from said low-pressure fuel supply means; and pump control means for controlling actuation of at least said first low-pressure pump and said second low-pressure pump in accordance with an operation state of the internal combustion engine.