FUEL INJECTION VALVE

WIPO Patent Application WO/2019/111643

A1

Penetration control in the prior art exhibits the problem that penetration of all of the injection holes varies. The objective of the present invention is to provide a fuel injection valve with which it is possible to selectively control, with a simple structure, the penetration of a spray injected toward a piston according to the lift amount. In order to resolve this problem, the present invention is a fuel injection valve that injects fuel into the combustion chamber of an internal combustion engine, wherein the fuel injection valve comprises a valve body that lifts by a maximum valve body lift amount that is either a first lift amount or a second lift amount that is smaller than the first lift amount, and the fuel injection valve is configured so that when the maximum valve body lift amount of the valve body is the first lift amount, the flow channel area of a seat part is greater than the sum of the flow channel area of all of the injection holes, and when the maximum valve body lift amount of the valve body is the second lift amount, the flow channel area of the seat part is less than the sum of the flow channel area of all of the injection holes.

HOSAKA TOMOYUKI (JP)
ISHII EIJI (JP)
YOSHIMURA KAZUKI (JP)
MAEKAWA NORIYUKI (JP)

PCT/JP2018/041907

June 13, 2019

November 13, 2018

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HITACHI AUTOMOTIVE SYSTEMS LTD (JP)

F02M61/10; F02M61/18

WO2017145527A1

2017-08-31

JP2008045519A	2008-02-28
JP2013068125A	2013-04-18
JP2010180763A	2010-08-19
JP2007285205A	2007-11-01
JP2010101290A	2010-05-06
JP2005139989A	2005-06-02

TODA Yuji (JP)

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