FUEL SUPPLY SYSTEM

摘要

A fuel supply system for an internal combustion engine may include a first tank and a second tank connected to each other via a fuel line. A first pump and a first fuel filter may be arranged between the first tank and the second tank. A second fuel pump and a second fuel filter may be arranged between the second tank and the engine. The first fuel filter may have a water separator. A first return line may be fluidly connected to the engine on an inlet side and to the second tank on an outlet side and/or the first fuel filter on a raw side. A preheating valve may be arranged in the first return line and be configured to distribute the fuel flowing back from the engine to the first fuel filter and/or the second tank. A second return line may connect the first and second tank.