| 摘要 |
A liquid fuel pumping apparatus for supplying fuel to a compression ignition engine comprises a rotary distributor member which contains a transverse bore housing a pair of main pumping plungers. The main plungers are moved inwardly by cam lobes formed on the internal peripheral surface of the cam ring, there being a plurality of pairs of such cam lobes. Also provided is a further pair of pumping plungers of smaller diameter and these are actuated by another of the pair of cam lobes slightly in advance of the actuation of the main pumping plunger. Pilot injection is provided by the smaller pair of plungers.
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