Mazda Mazda6 Workshop Manual Supplement page 99

Operation
• The fuel jet pump (venturi) is installed in the return passage from the pressure regulator, and fuel in the fuel
tank is pumped to the left side from the right side using the vacuum generated in the passage.
• When the return fuel pressure exceeds a specified value, the relief valve is opened. The relief valve delivers the
return fuel directly to the fuel tank. In this way, pressure of the return fuel passing through the fuel jet pump is
kept constantly below the specified value.
14
:
15
:
.
1 Fuel pump unit
2 Fuel pump (transfer)
3 Fuel injector
4 Fuel tank (left side)
5 Fuel tank (right side)
6 Relief valve
7 Discharge outlet
8 From pressure regulator
End Of Sie
FUEL SYSTEM
4
9
10
11
12
13
14
15
5
6
9
8
10
11
13 12
From fuel tank (right side)
Fuel jet pump
To fuel tank (left side)
Fuel jet pump
From fuel tank (left side)
Fuel flow
Pumped fuel flow
F1
3
A6E39122003
F1–11