Patent ID: 6702546
Filing Date: 2004-03-09
Classification: F04D,F05B

Abstract:
A turbine fuel pump comprising:a disk-shaped impeller provided with multiple blades and multiple blade grooves formed alternately in a circumferential direction on a first surface and on a second surface of an outer periphery of the impeller; and a pump housing for housing said impeller for rotating, the pump housing comprising: a disk-like first housing provided on said first side of said impeller, said first housing comprising: a side groove on an inlet side formed on an inner side surface and extending from a start end to a terminal end in approximately a C-shape; and a fuel inlet passage extending from the start end of said side groove on said inlet side toward an inside in a radial direction, and simultaneously toward said terminal end, and having an opening on an outer side surface; a disk-like second housing provided on said second side of said impeller, said second housing comprising: a side groove on an outlet side formed on an inner side surface, and extending from a start end to a terminal end in approximately a C-shape; and a fuel outlet opening communicating with the terminal end of said side groove on an outlet side, said impeller rotating to increase a pressure of fuel while the fuel drawn from said fuel inlet passage is being transported to said fuel outlet opening.