| 摘要 |
A fuel injector (10; 100) comprises an inlet (60) from which fuel can be transferred into a cavity (61) of the injector, at least one outlet orifice (86) communicating with said cavity (61), and ejecting means (44, 88) operable to apply force to fuel in said cavity to cause said fuel to be ejected through said orifice as discreet charges at pre-determined intervals. The operation of said ejecting means (44, 88) is also operable to transfer further fuel into said cavity (61).
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