Patent ID: 6974302

Claim:
A turbine fuel pump, comprising: a casing for accommodating an electric motor; a housing provided to the casing, the housing comprising an annular passage between inlet and outlet ports; and an impeller rotatably arranged in the housing, the impeller comprising blades arranged on an outer periphery to extend in a radial direction of the impeller and feeding fuel through the passage while the blades are rotated by the electric motor, each blade comprising a linear portion extending linearly in the radial direction of the impeller and a curved portion extending circularly curvedly from a head of the linear portion to a forward side of the impeller as viewed in a direction of rotation of the impeller, the linear portion having a predetermined length, the predetermined length being (⅖ to ⅗)×H, where H is an overall length of the blade and wherein the curved portion of the blade is curved by a predetermined angle on the forward side of the blade with reference to a center of rotation of the impeller, wherein the predetermined angle is 0.5 to 2.0°.