| 摘要 |
A fuel system (4) for a combustion engine (2) comprises a first fuel tank (20), a second fuel tank (22), a first fuel pipe (36) arranged in connection with the first fuel tank (20) and the second fuel tank (22), a second fuel pipe (40) arranged in connection with the first fuel tank (20), a main feed pump (26), and a trans¬ fer pump (28). The main feed pump (26) is arranged to feed fuel from the first fuel tank (20) through the second fuel pipe (40) and the transfer pump (28) is arranged to feed fuel from the second fuel tank (22) to the first fuel tank (20) via the first fuel pipe (36). A first electric engine (M1 ) is arranged to drive the transfer pump (28) and a second electric engine (M2) is arranged to drive the main feed pump (26). A pre-filter (30) is arranged downstream of the transfer pump (28), so that the transfer pump (28) feeds pressurised fuel through the pre-filter (30). The fuel system also enables a method to control a fuel system (4) with good filtration of the fuel, and which reduces the risk of operational disruptions in a combustion engine (2) and a motor vehicle. |
