Fuel supply system for internal combustion engine has electric fuel pump in inner chamber in tank and has throttle in line to suction jet pump made in one piece with preliminary filter

摘要

The main fuel tank (1) contains a fuel (3) supply module (2) with an electric pump (7) inside a cup-shaped inner chamber (4). The pump draws in fuel through a preliminary filter (8) and passes some of it to the engine (11), via a main filter (15). The remainder of the pumped fuel passes through a line (10) to a preliminary filter (23) and a throttle (24), made in one piece. The fuel passes through a further fuel line (21) to a jet pump nozzle (22) discharging into a suction chamber drawing in fuel from the main tank. The jet and aspirated fuel pass into a tapered mixing chamber (33) which acts as an aspirator. The jet pump is installed just above the floor (6) of the main tank and under the floor (5) of the inner chamber.