| 摘要 |
PROBLEM TO BE SOLVED: To improve the productivity of a fuel supply device which carries out a residual pressure holding function for fuel supplied to an internal combustion engine side.SOLUTION: A fuel supply device 1 includes a fuel pump 42, and a filter case 43 containing a fuel filter 464. The fuel supply device 1 is configured such that fuel pumped out by the fuel pump 42 from a fuel tank 2 is filtered by the fuel filter 464 and supplied from the inside of the filter case 43 to an internal combustion engine 3 side. The filter case 43 includes a case body 430 with a bottom, forming an accommodation chamber 463 of a fuel filter 464; a case cap 431 joined to the case body 430 to cover openings 432a, 432b, 432c of the case body 430; and a residual pressure holding valve 473 which is provided at a joint boundary B between the case body 430 and the case cap 431 and holds the pressure of the fuel supplied from the inside of the filter case 43 to the internal combustion engine 3 side at the timing of the stop of the fuel pump 42. |
