JPS5922982U

JPS5922982U - electromagnetic fuel injector

Info

Publication number: JPS5922982U
Application number: JP11943882U
Authority: JP
Inventors: 高田　重孝; 守松原
Original assignee: 愛三工業株式会社
Priority date: 1982-08-04
Filing date: 1982-08-04
Publication date: 1984-02-13

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本願の出願人の先行技術による電磁燃料噴射器
の縦断面図、第２図イ１口はこの考案による実施例ρ要
部の縦断面図、第３図はこの考案による他の実施例の要
部の縦断面図、第４図ないし第６図はこの考案の作用説
明図である。２２．４２・・・・・・バルブ・ハウジンク、２３゜４
３・・・・・・燃料噴射口、２３ａ、４３ａ・・・・・
・弁座、２４．４４・・・・・・ガイド孔、３１．５１
・・・・・・開閉弁、。３２．５２・・・・・・スライド部、３２ｂ、　　５２
ｂ・−−−−−燃料出口、３３．５３・・・・・・弁子
部。・　４．（４）　　　　　　　（０）４４ａ　　４４　４２＼＼曹　　； ′　“　　″　１４λｂ　＼　− ５２ｂ　　　５２ａ　　　　　　　　　５２ｃ第６図！Ｖ−Ｊ２／Ｄｅ’　　（−５−’）Fig. 1 is a longitudinal sectional view of an electromagnetic fuel injector according to the prior art of the applicant, Fig. 2 A1 is a longitudinal sectional view of the main part of an embodiment ρ according to this invention, and Fig. 3 is a longitudinal sectional view of another electromagnetic fuel injector according to this invention. The vertical sectional views of the main parts of the embodiment, and FIGS. 4 to 6 are explanatory diagrams of the operation of this invention. 22.42...Valve housing, 23°4
3...Fuel injection port, 23a, 43a...
・Valve seat, 24.44... Guide hole, 31.51
・・・・・・Opening/closing valve. 32.52...Slide part, 32b, 52
b.----Fuel outlet, 33.53...Valve part.・4. (4) (0) 44a 44 42 \\Ca; ′ “ ” 14λb \ - 52b 52a 52c Figure 6! V-J2/De'(-5-')

Claims

[Scope of utility model registration request]

A valve housing having a fuel injection port and a valve seat at the tip and a guide hole in the shaft center, and a cylindrical slide part that is slidably inserted into the guide hole and has a fuel passage inside, are integrated into the valve housing. An on-off valve equipped with a fixed spherical valve element, an armature coupled to the rear end of the on-off valve, and a fixed iron core facing the rear end surface of the armature and having a fuel passage in its axial center. , consisting of a W coil attached around the fixed iron core, and a magnetic case that connects the valve housing and the fixed iron core, and the on-off valve is normally kept in a closed state by being biased by a compression spring. , an electromagnetic fuel injector for an internal combustion engine in which, while receiving a signal to the electromagnetic coil, the on-off valve opens and injects pressurized fuel, the valve being injected from a fuel outlet provided in front of the sliding portion; An electromagnetic fuel injector characterized in that a fuel passage up to the seat is provided with an annular constriction section formed by an outer surface of a slide portion and an inner surface of a housing.