Patent ID: 9644584
Date: 2017-05-09
CPC Classifications: F02M,Y10T

Claim:
1. A vehicle fuel supply structure wherein fuel in a fuel tank is supplied under pressure by a fuel pump to a fuel injection valve via a secondary fuel filter adapted to filter the fuel to remove foreign matter and a regulator adapted to regulate fuel pressure, comprising: said secondary fuel filter, the regulator and the fuel injection valve being connected by fuel pipes; a third fuel filter is installed at least in an inlet side connecting portion between the regulator and a regulator inlet side fuel pipe of the fuel pipes, the regulator inlet side fuel pipe being adapted to deliver fuel to the regulator, said third fuel filter including a cylindrical frame member having a flange portion formed in a generally donut-shape, said flange portion being positionally restricted by a stepped inner surface of the male connector portion facing the flange portion; a fourth fuel filter is installed in an outlet side connecting portion between the regulator and a regulator outlet side fuel pipe adapted to deliver fuel from the regulator to the fuel injection valve; an outlet side fuel pipe operatively connected to the regulator for supplying fuel to the fuel injector valve; a return side fuel pipe operatively connected to the regulator for returning surplus fuel to the fuel tank; and said regulator including a regulator body having an inlet side connection pipe, an outlet side connection pipe and a return side connection pipe with an inlet side quick connector installed to connect the regulator inlet side connection pipe with the regulator inlet side fuel pipe and an outlet side quick connection installed to connect the regulator outlet side connection pipe with the regulator outlet side fuel pipe, said regulator inlet side connection pipe extending substantially vertically upwardly from the secondary fuel filter wherein said regulator is positioned above the secondary fuel filter so that when the secondary fuel filter is re s laced bubbles mixed into the regulator inlet side fuel pipe can rapidly be led through an ascending force to the third fuel filter disposed on an upside of the second fuel filter.