Fuel-feed system for an engine

摘要

In a high-pressure fuel pump (1), a bellows chamber communicates with a fuel tank (29). A volume chamber (36) having a predetermined volume is arranged in a return passage (26,27) which returns a fuel stayed in the bellows chamber to the fuel tank (29). The fuel which has stayed in a region in the return passage (27) can be flowed into the volume chamber (36) to be prevented from flowing back to the bellows chamber.