Search International and National Patent Collections

1. (WO2017033370) FUEL INJECTION DEVICE

Pub. No.:    WO/2017/033370    International Application No.:    PCT/JP2016/002968
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Wed Jun 22 01:59:59 CEST 2016
IPC: F02M 51/06
F02M 61/10
F02M 61/16
Applicants: DENSO CORPORATION
株式会社デンソー
Inventors: YAMAMOTO, Shinsuke
山本 辰介
OIKAWA, Shinobu
及川 忍
MATSUKAWA, Tomoji
松川 智二
GOTOH, Moriyasu
後藤 守康
ITOH, Eiji
伊藤 栄次
Title: FUEL INJECTION DEVICE
Abstract:
A movable core (40) is provided so that the movable core (40) can move relative to a needle body (31) and come into contact with a contact surface (34) which is the surface of a flange (33), which faces a valve seat. A stationary core (50) is provided on the opposite side of the movable core (40) from the valve seat. A spring (71) can press a needle (30) and the movable core (40) toward the valve seat. Conducting electricity to a coil (72) can move the needle (30) to the side opposite the valve seat. A spring seat section (81) is formed annularly and is provided on the outside radially of the needle body (31) at a position closer to the valve seat than the movable core (40). A spring (73) is provided between the movable core (40) and the spring seat section (81) and can press the movable core (40) toward the stationary core (50). A guide section (90) is provided on the inner side of the housing (20) at a position closer to the valve seat than the movable core (40). The inner wall of the guide section (90) slides on the outer wall of the spring seat section (81) and can guide the reciprocation of the needle (30).