| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel supply device for securing a degree of freedom in a vertical direction of a fuel tank, reducing a diameter of a fuel introduction passage compared with the related art, and allowing bending of the fuel introduction passage in a vertical direction. SOLUTION: Fuel in a fuel tank 10 introduced through the fuel introduction passage 14 is temporarily stored in a fuel reservoir port 16. A lower part of the fuel reservoir 16 is connected with a pump chamber 30 through an intake valve 36. An upper part of the fuel reservoir part 16 is connected with an auxiliary pump 18 through an auxiliary fuel introduction passage 20, and the auxiliary pump 18 is connected with an upper part of the fuel tank 10 through an auxiliary fuel discharge passage 22. Vapor is stored in an upper part of the fuel reservoir part 16, and then is returned to the fuel tank 10 through the auxiliary fuel introduction passage 20, auxiliary pump 18, and auxiliary fuel discharge passage 22. Therefore, the degree of freedom in the vertical direction of the fuel tank 10 is secured, the diameter of the fuel introduction passage 10 is reduced, and the bending in the vertical direction of the fuel introduction passage 14 is allowed. COPYRIGHT: (C)2006,JPO&NCIPI
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