Fuel system

The fuel system (10) has a fuel pump (20). This delivers the fuel (18) from the fuel tank (16), coupled via a fuel line (22) to a second fuel pump (30), with a pressure setting device (48) controlling the pressure on its output side. The fuel line between the fuel pumps incorporates a pressure va pour device (32) for damping pressure variations and a non-return valve (56) in front of the connection for the pressure setting device.