The present invention relates to a rotary fuel pump (101). The pump (101) has a rotor (107) and at least one pumping element (115) for supplying high pressure fuel. A cam box (123) containing a cam arrangement (103) is provided for actuating the at least o...

An advance arrangement for controlling the timing of fuel delivery by a fuel pump for use in an engine. The advance arrangement comprises an advance piston (12) which is slidable within a first bore (14) and which co-operates, in use, with a cam arrangemen...

A spring (62) acting directly upon on a stop (22) on the injection adjustment piston (6) and a separate spring assembly (60, 61) acting upon the control slide (12) are located between the cold start acceleration piston (23) and one of the faces (18) of the...

An adjustment unit (2) shifts the start of injection. This includes a chamber (11) pressurized and de-pressurized by an actuator (3), causing the cold start acceleration piston (12) to be moved. This acts through a spring (21) against the valve slide (24) ...

An advance arrangement for use in controlling timing of fuel delivery by a fuel pump comprises an advance piston (12) which is moveable within a first bore (14) and which cooperates, in use, with a cam arrangement of a fuel pump to adjust the timing of fue...

An advance arrangement for use in controlling timing of fuel delivery by a fuel pump comprises an advance piston (12) which is moveable within a first bore (14) and which cooperates, in use, with a cam arrangement of a fuel pump to adjust the timing of fue...