| 摘要 |
PURPOSE: An impeller module for a fuel pump is provided to improve discharge efficiency by improving a blade shape of an impeller. CONSTITUTION: An impeller module for a fuel pump comprises a lower case(4), an upper case(5), and an impeller(1). The lower case comprises a fuel inlet and a lower part fuel path(50). The upper case comprises a fuel outlet and an upper part fuel path(70). The impeller is inserted between the upper case and the lower case and rotates with power of a motor. Fuel flowing through the fuel inlet discharges through the fuel outlet with fuel kinetic energy generated by rotation of the impeller.
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