Patent ID: 8511284

Claim:
A fuel supply apparatus of an internal combustion engine that supplies fuel inside a fuel tank to a high pressure pump by a low pressure pump, highly pressurizes the fuel by the high pressure pump, pressure feeds the fuel to a common rail that is connected to a fuel injection portion of the internal combustion engine, and supplies the fuel from the fuel injection portion to the internal combustion engine, comprising: a flow rate control valve that adjusts a flow rate of the fuel supplied to the common rail; and a pressure control valve that reduces pressure within the common rail, the fuel supply apparatus comprising: a pre-start drive control portion that performs a pre-start drive of the low pressure pump before a start of the internal combustion engine; a flow rate control valve control portion that, while the pre-start drive is being performed, maintains the flow rate control valve in an open state; and a pressure control valve control portion that, while the pre-start drive is being performed, maintains the pressure control valve in a closed state and performs a control that opens the pressure control valve at least once for a short time period.