injection-timing device of an in-line pump function of the centrifugal weights function of the retracting spring Injection advance caused by the centrifugal weights acting on the camshaft description ordernumber 137 see also: centrifugal governor of a DE (idle- and maximum-speed control) solenoid valve of a radial-piston distributor pump Cummings PT fuel system air flow in a variable turbocharger