Fuel injection pumping apparatus
AssigneeKucas Industries Limited
InventorsBoaz A. Jarrett, Dorian F. Mowbray
Life of this patent
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Abstract
A fuel injection pumping apparatus comprises a rotary distributor member having a bore containing a plunger which is moved inwardly to cause delivery of fuel by the apparatus by cam lobes formed on the internal surface of a cam ring. The cam lobes are regularly spaced but in order to balance the forces acting on the distributor member the bore houses a further plunger which is held against outward movement by means of a roller which engages the internal surface of a pair of stop rings mounted in the housing of the apparatus.
Claims4
A liquid fuel injection pumping apparatus for supplying fuel to an internal combustion engine and of the kind comprising a rotary distributor member housed within a body, a transversely disposed bore formed in the distributor member, a plunger positioned in the bore, an annular cam ring surrounding the distributor member and having inwardly directed cam lobes for imparting inward movement to the pumping plunger and means for conveying fuel to and from said bore, a further plunger in said bore, means surrounding the distributor member but separate therefrom, said means acting to retain said further plunger against outward movement in the bore.
Dependencies are inferred from the claim text.