Patent ID: 6715986
Filing Date: 2004-04-06
Classification: F02M,F04D,F05B

Abstract:
A fuel pump for pressurizing and pumping fuel drawn from a fuel tank, the fuel pump comprising:a disk-shaped impeller within a flow channel, the impeller capable of rotating within the flow channel, a fuel suction port, a pump channel defined along an outer periphery of the impeller for pressurizing fuel drawn from the fuel suction port by rotary motion of the impeller, and a first vapor chamber formed on a fuel suction port side of the impeller and formed in a radial direction of the impeller, said first vapor chamber being defined radially outside an outer periphery of said pump channel, wherein the pump channel includes an introduction groove in fluid communication with the fuel suction port and a pressurizing groove continuously formed with the introduction groove for pressurizing fuel by rotary motion of the impeller.