• 专利标题: NOZZLE PLATE FOR FUEL INJECTION DEVICE
  • 申请号: US15542291
    申请日: 2015-12-21
  • 公开(公告)号: US20180266377A1
    公开(公告)日: 2018-09-20
  • 发明人: Koji NOGUCHI
  • 申请人: ENPLAS CORPORATION
  • 优先权: JP2015-003316 20150109
  • 国际申请: PCT/JP2015/085605 WO 20151221
  • 主分类号: F02M61/18
  • IPC分类号: F02M61/18 F02M61/16
NOZZLE PLATE FOR FUEL INJECTION DEVICE
摘要:
A nozzle hole of a nozzle plate is coupled to a fuel injection port of a fuel injection device via a swirl chamber and first and second fuel guide channels opened into the swirl chamber. The swirl chamber is formed by combining first and second elliptical-shaped recessed portions. The first fuel guide channel opens at a side of a short axis of the first elliptical-shaped recessed portion and a side of the short axis that does not overlap with the second elliptical-shaped recessed portion, and the second fuel guide channel opens at a side of a short axis of the second elliptical-shaped recessed portion and a side of the short axis that does not overlap with the first elliptical-shaped recessed portion. The first and second fuel guide channels have depths deeper than those of the swirl chamber and extend inside of the swirl chamber while gradually reducing cross-sectional areas.
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