PUMP UNIT FOR A FUEL INJECTION SYSTEM OF AN INTERNAL COMBUSTION ENGINE

摘要

A pump unit for a fuel injection system of an internal combustion engine is arranged along a fuel feed circuit and has a pre-feed pump and a high-pressure pump which has a pump body and a flange joined to the pump body. The feed circuit is provided with a feed branch and a delivery branch of the pre-feed pump which are formed, at least partly, in the flange of the high-pressure pump.