in-line injection pump with RSV flyweight governor function of the RSV governor (variable- speed governor) 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 1141 see also: Common-rail high pressure pump with fuel-delivery regulation valve twin-choke downdraught carburetor Piezo-injector in-line fuel-injection pump with centrifugal governor