Fuel injection pumping apparatus

A fuel injection pumping apparatus for supplying fuel to an internal combustion engine comprising a body part, a rotary distributor member located in the body part, an outwardly extending bore formed in the distributor member and a plunger located therein, means for feeding fuel to said bore to move the plunger outwardly during a filling stroke of the apparatus, a delivery passage communicating with the bore and arranged to register with an outlet port in the body part during a delivery stroke of the apparatus, a cam for imparting inward movement to the plunger to effect delivery of fuel, stop means for limiting the outward movement of the plunger and means for varying the axial setting of the distributor member, said stop means being arranged so that the amount of fuel delivered during the delivery stroke depends upon the axial setting of the distributor member, resilient means for biassing the distributor member in one axial direction, a variable volume chamber defined in part by an end face of the distributor member, said resilient means acting to urge the distributor member in a direction to reduce the volume of said chamber, an axially movable sleeve carried on said distributor member, said sleeve in conjunction with passage means in said distributor member which communicates with said chamber, acting to control the volume of liquid in said chamber, governor means operable to adjust the axial position of said sleeve, a low pressure pump for supplying liquid under pressure, a first passage for conveying liquid from the outlet of the pump to said chamber and said passage means comprising a second passage formed in the distributor member and in communication at one end with said chamber and at its other end with a port on the periphery of the distributor member, said port being positioned so that the flow of liquid therethrough is determined by the relative axial position of the sleeve and distributor member.