Fuel injection device for internal combustion engine e.g. oil engine, has hydraulic circuit with two fuel passages, where one passage has stop valve that allows fuel to flow from control valve to back pressure chamber

摘要

The device has a hydraulic circuit with two fuel passages (29,30), which connect a control valve (5) parallel with a back pressure chamber (24) of a nozzle (4). One of the fuel passages (29) is provided with a stop valve (31) that allows the fuel to flow from the control valve to the back pressure chamber. The stop valve also prevents the fuel flow from the back pressure chamber to the control valve.