Patent ID: 7246602
Filing Date: 2007-07-24
Classification: F02B,F02D,F02M,Y02T

Abstract:
1. A fuel supplying apparatus of an internal combustion engine, comprising: a first fuel supply system that pressurizes a fuel by a low-pressure pump, and that supplies the fuel pressurized by the low-pressure pump to a first fuel injection mechanism; a second fuel supply system that is branched from the first fuel supply system, that further pressurizes the fuel, pressurized by the low-pressure pump, by a high-pressure pump that is driven according to an operating state of the internal combustion engine, and that supplies the fuel pressurized by the high-pressure pump to a second fuel injection mechanism; and a pulsation generating number-of-revolutions change unit that changes the number of revolutions of the internal engine at which a pulsation propagated from the high-pressure pump to the first fuel injection mechanism is increased.