Title:
FUEL INJECTION VALVE, AND CONTROL SYSTEM FOR FUEL INJECTION VALVE
Document Type and Number:
Japanese Patent JP2018009540
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a fuel injection valve for highly accurately controlling a spray state of a fuel injected from a plurality of injection holes.SOLUTION: A fuel injection valve 1 includes: a housing 11 having an inner injection hole 26 and an outer injection hole 27 located radially outside of the inner injection hole 26 when viewed from a central axis CA1 of the fuel injection valve 1; an outer needle 20 having an intermediate passage 210 communicating with the inner injection hole 26, and capable of coming into contact with an inner wall surface 256 located radially outside of the outer injection hole 27; an inner needle 23 capable of coming into contact with an inner wall surface 218 located radially outside of an inside opening of the intermediate passage 210; and an intermediate seal member 28 capable of coming into contact with a middle inner wall 255 located between the inner injection hole 26 and the outer injection hole 27. When the inner needle 23 moves in a valve opening direction, a pressure in a variable pressure chamber 200 between the outer needle 20 and the inner needle 23 is reduced. Thereby, the outer needle 20 moves in a valve opening direction, and the fuel is injected from the outer injection hole 27.SELECTED DRAWING: Figure 2
More Like This:
Inventors:
GOTO KUNIO
NIWA MASAYUKI
NONOYAMA YOSHIHARU
MAEKAWA HITOSHI
TOMOMATSU KENICHI
HAMADA TAKUYA
YAMASHITA YUTO
NIWA MASAYUKI
NONOYAMA YOSHIHARU
MAEKAWA HITOSHI
TOMOMATSU KENICHI
HAMADA TAKUYA
YAMASHITA YUTO
Application Number:
JP2016140090A
Publication Date:
January 18, 2018
Filing Date:
July 15, 2016
Export Citation:
Assignee:
SOKEN INC
International Classes:
F02M45/08; F02D45/00; F02M51/00; F02M61/10; F02M61/18
Attorney, Agent or Firm:
Masaki Hattori