Volvo Lastvagnar Ab

Volvo Lastvagner Ab

Jan Lindblom

A fuel delivery system having a fuel reservoir connected to a suction side of a pump, a fuel delivery line connected to an output side of the pump, a number of fuel injectors connected to the delivery line, and a return line from the injectors to the suction side of the pump. The pump has a housing, a pumping chamber within the housing, a driver rotor and a driven rotor within the pumping chamber, and an input shaft t the housing. The input shaft is arranged such that rotation of the input shaft effects rotation of the driver rotor. The driver rotor is caused to rotate by the input shaft via a magnetic coupling. The magnetic coupling is arranged to slip when a predetermined value of torque is applied across the coupling such that a maximum pressure value of about 12 bar is attained at the output side of the pump.

Fuel delivery system

Methods and apparatus for controlling fuel injection pressure for fuel through a nozzle for combustion in an engine are disclosed. These include methods and apparatus for injecting the fuel at an injection pressure by means of an injector, maintaining the pressure during injection by closing a primary control valve for the fuel, and releasing a portion of the pressure during a predetermined portion of the fuel injection.

Method and arrangement for controlling the injection pressure of liquid fuel

The present invention relates to a longitudinal cylinder head (,) for mounting on, for example, a diesel engine having cavities (,) for injection units (,) and supply means for liquid fuel. The invention is characterized by only one longitudinal fuel passage (,) for supply of fuel to all injection units (,).

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Lycke, Sweden

Jan Lindblom