Patent ID: 7278404

Claim:
A fuel supply system for supplying an internal combustion engine with fuel, comprising: an electric fuel pump allocated to a fuel tank, a fuel line leading to the internal combustion engine and connected with the fuel pump, a return line connected with the fuel line, for returning fuel toward the fuel pump, a shunt connected with the fuel line, for operating a sucking jet pump arranged in the fuel tank, and a pressure control system opening or closing the connection of the shunt to the fuel line at a first pressure and opening or closing the connection of the return line with the fuel line at a second pressure, the pressure control system opening the shunt and the return line when the pressure increases and closing them when the pressure drops, wherein said pressure control system comprises a 3/3-way valve that is connected with the fuel line at the input side and respectively connected with the return line and with the shunt at the output side.