| 摘要 |
PROBLEM TO BE SOLVED: To stabilize the fuel supply amount by reducing the pressure gradient of the fuel discharged from a fuel pump. SOLUTION: This fuel supply device has a pressure governor 2 for adjusting the pressure of the fuel taken out from a fuel tank 35 and discharged from the fuel pump to a predetermined value. Two pressure governors 2 are mounted. One of the pressure governors 2 is composed of a tubular body 7 connected to a discharge port of the fuel pump 1, a relief pump 64 connected to a sidewall of the tubular body 7, a valve element 642 for opening and closing an opening 641 of the relief pipe 64, and a spring 646 for energizing the valve element 642 with the force corresponding to the predetermined fuel pressure. A return hole 647 is formed on a sidewall of the relief pipe 64. The other pressure governor also has the similar constitution. As the valve opening pressure of each valve element can be independently determined, it is not necessary that they are the same value.
|
