| 摘要 |
PROBLEM TO BE SOLVED: To preclude vapor from being contained in a boosted fuel discharged from a fuel pump as much as practicable and enhance the high-temperature characteristics of the fuel pump. SOLUTION: A sub-tank C is attached rigidly with a cover 1 and installed in a fuel tank T. A fuel pump accommodating wall 7 is formed rigidly on the outer side of the sub-tank C, and a fuel pump P is accommodated in the accommodating wall 7 and sucks in the fuel in the sub-tank C into the pump chamber PB and makes boosting, and the vapor produced in the pump chamber PB is discharged to the inside of the fuel tank T.
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