Fuel injection unit for internal combustion engine of motor vehicle, comprises flow section between pressure chamber and the connection to the release section

摘要

A flow section is provided between the pressure chamber (40) and the connection (52) to the release section (24). The flow section is dependent on the lift of the injection valve member (28) by a slide valve (58). When the injection valve member is arranged in the closed position, only a small flow rate section which forms a throttle point (59) is freed. When the injection valve member is moved in the opening direction (29), a larger flow section is freed.