in-line pump with RSF flyweight governor function of the RSF governor (idle final speed) displacement of the piston rod torsion of all pump plungers by turning the camshaft one can see the stroke of all pump plungers function of the pressure valves description ordernumber 1138 see also: high-pressure pump for engines with direct petrol injection (GDI) model board: two-wheel technique two-stage turbocharger (bi-turbo) Cylinder head with piezo injector