| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel pump unit, to which large flow and small flow pressure regulators are selectively mounted without changing the shapes of a lid and a pump holder. SOLUTION: In a lid A, an annular cylinder part 11 projected downward from the lower surface 10a of a flange part 10, and a fuel passage boss part 12 inside thereof are projected, a first insert hole connected to a first fuel outflow passage 14 is opened toward the lower end 12a, and a second insert hole opened in the horizontal direction is opened in the side surface 12b. The pump holder B includes a fuel pump P, the pump holder B is mounted on the lid A with an insert cylindrical part 17 locked on the annular cylindrical part 11, and a fuel discharge shaft part 20 connected to a pump discharge passage Pa is inserted and connected to the first insert hole. A joint member 1 includes a horizontal shaft part 1a and a vertical shaft part 1b, an inflow cylindrical part 41a of the large-flow rate pressure regulator Rb is inserted in the regulator insert hole 1d opened at the lower end 1b1 of the vertical shaft part 1b, and the horizontal shaft part 1a is inserted and connected to the second insert hole of the lid A. COPYRIGHT: (C)2007,JPO&INPIT
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