Patent ID: 6325051
Filing Date: 2001-12-04
Classification: F02B,F02M,Y02T

Abstract:
A high-pressure fuel supplying apparatus for an internal combustion engine, comprising:a high-pressure pump having a fuel gallery and a pressurizing chamber, the high-pressure pump introducing fuel from the fuel gallery into the pressurizing chamber, pressurizing fuel to a high pressure in the pressurizing chamber, and supplying pressurized fuel to an in-cylinder fuel injection valve;a feed pump that pumps fuel from a fuel tank to the fuel gallery; anda vapor discharging passage that discharges vapor from the fuel gallery, at least a portion of the vapor discharging passage located above or at substantially a same vertical level as an upper end of the fuel gallery in a vertical direction, the vapor discharging passage including a reservoir portion, which is a portion of the vapor discharging passage having a sectional area that is expanded vertically upward.