| 摘要 |
PROBLEM TO BE SOLVED: To inhibit the pressure pulsation of fuel generated in an injector 1 from being transmitted to a fuel supply source without complicating processing or altering routing concerning the piping connecting the injector 1 and the fuel supply source. SOLUTION: A filter 23 for removing foreign matter contained in the fuel and a pulsation damping mechanism 27 for damping the pressure pulsation of the fuel accompanied with stop of fuel injection are arranged in a fuel receiving flow path 22 of an inlet 5 of the injector 1. With this, the pulsation damping mechanism 27 is unnecessary to be provided on the piping connecting the injector 1 and the fuel supply source and the pressure pulsation can be inhibited from being transmitted to a common rail without complicating processing or altering routing concerning the piping. By arranging the pulsation damping mechanism 27 on the injector 1 itself, the pressure pulsation can be damped at a position closer to the generation source. COPYRIGHT: (C)2009,JPO&INPIT
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