in-line injection pump with RQV flyweight governor function of the RQV 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 1145 see also: Demand-driven oil pump with suction stage (V8) pump with slide-valve control (electronically controlled) MAN direct injection with bowl-in piston connecting rod model case