Method for operating a combustion engine in which when the fuel pump is on balance transporting fuel, the number of transporting phases (48) of the pump per rotation of the drive shaft is dependent on at least one operating parameter of the combustion engi...

In a method for driving a solenoid proportional control valve (44) used for flow rate control of a common rail system pump adapted to regulate flow rate by regulating the duty ratio of a pulse voltage applied to a solenoid coil (F) of a solenoid (44E), whe...

The start and end of injection are calculated in terms of the operational state and loading demand. Duration (TF) of the delivery phase of the high pressure pump (220) is calculated. The metering valve (230) is controlled such that pump delivery timing is ...

A fuel pump for use in delivering high pressure fuel to a common rail of a fuel injection system includes a pumping plunger (10) which is reciprocable within a plunger bore (12) to cause pressurisation of fuel within a pumping chamber (16). In use, during ...

The device has a high pressure pump, a storage device connected to injectors, a delivery pump and a clock valve fuel dosing device opened and closed under pulse width control. The fuel quantity fed to the high pressure pump suction side is proportional to ...

One or more working chambers (48) has an individually-controlled valve (54). This allows it to be connected to the low pressure region (18) when required, so that for an interval there is no transfer from this chamber to the high pressure outlet (20). Inde...

The fuel injection system has a fuel pump (5) for delivery of the fuel, at least one sensor (9,10,11,13), for monitoring a parameter of the fuel injection system or the engine and a control device (8) receiving the sensor signals, for corresponding control...

A fuel supply system for a direct injection engine which has a variable capacity single cylinder plunger pump and two fuel rails (53a, 53b). There are disposed orifices (58, 58') at the upstream side inlets of the both fuel rails (53a, 53b), respectively. ...