Patent ID: 6920866

Claim:
An arrangement for fuel transfer in a combustion engine comprising a combustion engine having a fuel inlet; a first fuel tank which is the main tank; a second fuel tank including a return line connected to receive return fuel from the engine, the second fuel tank is also connected to the engine fuel inlet; and at least one fuel pump for conveying fuel to the engine inlet, wherein the return line from the engine leads into the second fuel tank above the normal fuel level therein; wherein the second fuel tank is connected to and fillable from the first fuel tank so that the engine receives all its fuel from the second tank, and the at least one fuel pump is between the engine and the second fuel tank for pumping fuel to the engine inlet; further comprising a second fuel pump between the first fuel tank and the second fuel tank for pumping fuel from the first tank to the second tank, wherein the second fuel pump between the first fuel tank and the second is controlled by the fuel level in the second fuel tank; and at least one vent on the second fuel tank for venting of the fuel therein to the surrounding atmosphere.