Patent ID: 8136507

Claim:
A fuel supply system supplying a fuel in a fuel tank to an internal combustion engine, the fuel supply system comprising: a feed pump pumping up the fuel in the fuel tank; a filter removing a foreign matter contained in the fuel discharged from the feed pump; and a high-pressure pump suctioning and pressurizing the fuel filtrated by the filter, the high-pressure pump discharging the pressurized fuel toward the internal combustion engine, wherein the high-pressure pump includes a camshaft driven by the internal combustion engine, a cam rotated along with the camshaft, a plunger reciprocated by the cam, a fuel pressurizing chamber in which the fuel is suctioned and pressurized by a reciprocation of the plunger, and a housing accommodating a part of the plunger, the cam, and the camshaft, the fuel is supplied from the fuel tank to the feed pump through a first fuel pipe, the fuel is supplied from the feed pump to the filter through a second fuel pipe, the fuel is supplied from the filter to the fuel pressurizing chamber through a third fuel pipe, the fuel is supplied from the filter to the housing through the fourth fuel pipe, and the third fuel pipe and the fourth fuel pipe are formed independently of each other.