发明名称 CYLINDER FUEL INJECTION DEVICE
摘要 PROBLEM TO BE SOLVED: To generate a spray in which a fuel quantity is increased in an injection later period by arranging a plurality of fuel turning passages on a fuel turning member, disposed on the upstream side of a valve member for opening/ closing a fuel passage in the axial direction, on plural stages, and per stage, and specifying positions for axial cores of a plurality of fuel turning passages. SOLUTION: When an ON-signal is applied to a solenoid coil, a plunger is attracted to a core side, a valve element 6 is moved upward via a rod and is separated from a seat surface of a valve seat of a nozzle member 7 to open an injection hole 8. A fuel turning member 22 provided with a plurality of fuel turning passages 23, 24 is disposed on the upstream side of the valve element 6, in the axial direction, on plural stages, and per stage. A position from the valve center of a diametrical direction passage 23 is arranged so that, namely, an off-set quantity L2 is set smaller than an offset quantity L1 of a diametrical direction passage 24. A hole 22a is disposed on a center part of the fuel turning member 22, a slightly large hole 25a is disposed on a lower part side continuingly to the hole 22, and each of diametrical direction passages 23, 24 is opened.
申请公布号 JP2000314355(A) 申请公布日期 2000.11.14
申请号 JP19990125555 申请日期 1999.05.06
申请人 HITACHI LTD 发明人 OKAMOTO YOSHIO;KADOMUKAI YUZO;YAMAKADO MAKOTO;MIYAJIMA AYUMI;AMO KIYOSHI;ISHIKAWA TORU
分类号 F02M51/08;F02M61/18;(IPC1-7):F02M51/08 主分类号 F02M51/08
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