Patent ID: 7905215

Claim:
A fuel supply apparatus mounted on a vehicle comprising: a receiver that receives fuel from an exterior; a fuel passage that is communicated with the receiver; a valve member that is provided in the fuel passage; a pressurizer chamber that is located downstream of the fuel passage, the pressurizer chamber receiving fuel and compressing fuel in the pressurizer chamber; a discharge unit that discharges fuel compressed in the pressurizer chamber; a movable unit that is contactable with the valve member, the movable unit being displaceable between a closing-side position and an opening-side position; a coil that generates a magnetic attractive force attracting the movable unit; a drive circuit portion adapted to energize the coil with a drive electric current such that the coil generates the magnetic attractive force, wherein: the drive circuit portion energizes the coil with the drive electric current of a first value such that the movable unit is displaced from the opening-side position to the closing-side position; and the drive circuit portion energizes the coil with the drive electric current of a second value that is smaller than the first value such that the movable unit is held at the closing-side position; a drive control portion adapted to control the drive circuit portion to change the drive electric current from the first value to the second value in order to displace the movable unit toward the closing-side position while the movable unit is being displaced toward the closing-side position based on energization of the coil with the drive electric current of the first value; and a fuel pressure detection portion adapted to detect pressure of fuel discharged through the discharge unit, wherein the drive control portion determines timing of controlling the drive circuit portion to start energizing the coil with the drive electric current of the first value in accordance with a decrease of the pressure detected by the fuel pressure detection portion, wherein: when the pressure detected by the fuel pressure detection portion decreases, the drive control portion advances a timing of controlling the drive circuit portion to start energizing the coil with the drive electric current of the first value.