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1. (WO2018087827) FUEL INJECTION VALVE AND INJECTION FLOW RATE ADJUSTMENT METHOD

Pub. No.:    WO/2018/087827    International Application No.:    PCT/JP2016/083194
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Thu Nov 10 00:59:59 CET 2016
IPC: F02M 61/18
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: KAWASAKI, Shota
川▲崎▼ 翔太
MUNEZANE, Tsuyoshi
宗実 毅
ITO, Keisuke
伊藤 啓祐
Title: FUEL INJECTION VALVE AND INJECTION FLOW RATE ADJUSTMENT METHOD
Abstract:
The present invention achieves a fuel injection valve and an injection flow rate adjustment method such that manufacturing cost can be reduced by use of a groove shape common to different injection flow rate specifications, and atomization of fuel spray can be facilitated from the beginning of injection by suppressing generation of a dead volume of fuel. In a fuel injection valve according to the present invention, a plurality of swirl chambers are formed on an upper surface of an injection plate, and the plurality of swirl chambers comprises a first swirl chamber which has a swirl part communicating with a valve seat opening part via a fuel introduction part and a second swirl chamber which has a swirl part not communicating with the valve seat opening part. An injection hole for injecting fuel is formed in the swirl part of the first swirl chamber.