JPS60167157U

JPS60167157U - electromagnetic fuel injection device

Info

Publication number: JPS60167157U
Application number: JP5624984U
Authority: JP
Inventors: 晃高橋; 団野　喜朗; 武岸田
Original assignee: 三菱自動車工業株式会社; 株式会社ミクニ
Priority date: 1984-04-17
Filing date: 1984-04-17
Publication date: 1985-11-06
Also published as: JPH03518Y2

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図は本考案の第１実施例とこての電磁式燃料噴射装
置を示す要部縦断面図であり、第２図は本考案の第２実
施例、ＴｈＬでの電磁式燃料噴射装置を示す要部縦断面
図であり、第３図は本考案の第３実施例としての電磁式
燃料噴射装置を示す要部縦断面図であり、第４，５図は
本考案の第１〜３実施例における案内部の変形例を示す
要部縦断面図である。１．１′・・・・・・ケーシング、２・・・・・・コイ
ルアッセンブリ、３・・・・・・ソレノイドコイル、４
，４′・・・・・・バルブシート部材、４ａ、　４’ａ
・・・・・・バルブシート、５・・・・・・球状弁体、
５′・・・・・・弁体、６，６′・・・・・・弁体付き
電気子、６ａ、６’ａ・・・・・・電気子、６ｂ、６’
ｂ・・・・・・Ｌ　７−−−−−−センタコア、７ａ・
・・・・・円筒状孔、８・・・・・・案内部材、８ａ・
・・・・・球状弯曲部、９・・・・・・燃料用通路、１
０，１０’・・・・・・スプリング、１１・・・・・・
隙間、１３・・・・・・ノズル、１４・・・・・・スワ
ールピース、１５・・・・・・案内面、１６・・・・・
・球状部、１７・・・・・・コイルスプリング、１８・
・・・・・円筒面、１９・・・・・・案内部材、２０・
・・・・・円筒状案内面、Ｒ・・・・・・案内部最大径
、ｒ・・・・・・曲率半径。Fig. 1 is a longitudinal cross-sectional view of the main part showing the first embodiment of the present invention, an electromagnetic fuel injection device for a trowel, and Fig. 2 shows the electromagnetic fuel injection device in ThL, a second embodiment of the present invention. FIG. 3 is a vertical cross-sectional view of a main part showing an electromagnetic fuel injection device as a third embodiment of the present invention, and FIGS. FIG. 7 is a vertical cross-sectional view of main parts showing a modification of the guide section in the embodiment. 1.1'...Casing, 2...Coil assembly, 3...Solenoid coil, 4
, 4'...Valve seat member, 4a, 4'a
... Valve seat, 5... Spherical valve body,
5'... Valve body, 6, 6'... Armature with valve body, 6a, 6'a... Armature, 6b, 6'
b...L 7------ Center core, 7a・
... Cylindrical hole, 8 ... Guide member, 8a.
... Spherical curved part, 9 ... Fuel passage, 1
0,10'...Spring, 11...
Gap, 13... Nozzle, 14... Swirl piece, 15... Guide surface, 16...
・Spherical part, 17... Coil spring, 18.
... Cylindrical surface, 19 ... Guide member, 20.
...Cylindrical guide surface, R...Maximum diameter of the guide part, r...Radius of curvature.

Claims

[Scope of utility model registration request]

a nozzle for injecting fuel into an intake passage or a cylinder of an engine; a valve body that is attached to and separated from the base end of the nozzle to open and close the nozzle; and an armature with a valve body having the valve body at its tip; A solenoid core disposed close to the armature with the valve body to cause the armature with the valve body to reciprocate in order to open and close the nozzle, and a solenoid core that guides the reciprocating movement of the armature with the valve body. A guide member that engages with the guide member is formed on a part of the armature with the valve body, and a guide surface that slidably engages with the engagement surface is provided with a guide member that engages with the guide member. one of the guide surface and the retaining surface is formed to have a curved portion in its longitudinal section, and the other is formed to have a cylindrical surface that contacts the curved portion; An electromagnetic fuel injection device characterized in that a radius of curvature of a portion of the curved portion that contacts the cylindrical surface is smaller than a radius of the cylindrical surface.