Fuel injection pumping apparatus

A fuel injection pumping apparatus for supplying fuel to internal combustion engines and comprising a rotary shaft adapted to be driven in timed relationship with an associated engine, an injection pump driven by the shaft, a control member movable to vary the quantity of fuel supplied by the injection pump, and lever means coupling the control member to a governor mechanism including a centrifugally operable weight mechanism driven by the shaft, said governor mechanism comprising a first sleeve slidable on the shaft, first resilient means acting on the first sleeve to urge the sleeve in one direction, a second sleeve slidable on the shaft, second resilient means acting on said second sleeve, said weight mechanism acting to effect movement of the sleeves in opposition to the force exerted by said resilient means, said lever means comprising a first element constrained for pivotal movement about an axis, said first element being coupled to said first sleeve, a second element coupled to said second sleeve and being mounted relative to said first element so as to pivot therewith about said axis, and means coupling said second element to the control member whereby limited movement of the control member will occur as a result of movement of the sleeves relative to each other, the main movement of the control member occurring as a result of movement of the first sleeve.