| 摘要 |
PROBLEM TO BE SOLVED: To secure a wide combustion zone by enlarging a dynamic range without changing a fuel injection pressure in a fuel injection controller for an internal combustion engine. SOLUTION: A valve body 22 having a sack part 24 and an injection hole 25 is fixed to a tip of a holder 21, a needle valve 29 is movably supported in the valve body 22, the needle valve 29 is enabled to close a fourth fuel passage 47 by a compression coil spring 34, the needle valve 29 is enabled to open the fourth fuel passage 47 by being axially moved by electromagnetic attraction of a coil 37, a heater 55 is provided in the needle valve 29, and the heater 55 is energized in response to an operating state of the engine to heat the needle valve 29. COPYRIGHT: (C)2007,JPO&INPIT
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