New Generation N62 Engine
Chapter 6 P.9
Course Contents/Background Material
© BMW AG,
Service Training
The fuel flows from the pressure regulator valve on to an
intersection point where the fuel return flow is separated. Some
of the fuel flows through the suction jet pump in the left half of
the tank via the internal fuel line to the surge chamber.
The suction jet pump acts like a venturi tube which draws the
returning fuel from the left half of the tank into the right half.
The other amount of diverted fuel flows via the second internal
fuel supply directly to the right half of the tank and to a suction
jet pump (21) which is fitted there. This pumps the fuel from the
right half of the tank into the surge chamber to ensure that the
surge chamber is always filled with enough fuel.
The surge chamber ensures that the fuel delivery pump is always
supplied with sufficient fuel in all driving conditions.
