JPH0626418A - Bobbin for solenoid type fuel injection valve - Google Patents

Bobbin for solenoid type fuel injection valve

Info

Publication number
JPH0626418A
JPH0626418A JP18342092A JP18342092A JPH0626418A JP H0626418 A JPH0626418 A JP H0626418A JP 18342092 A JP18342092 A JP 18342092A JP 18342092 A JP18342092 A JP 18342092A JP H0626418 A JPH0626418 A JP H0626418A
Authority
JP
Japan
Prior art keywords
coil
bobbin
injection valve
core
fuel injection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP18342092A
Other languages
Japanese (ja)
Inventor
Masahiro Soma
正浩 相馬
Yoshiyuki Tanabe
好之 田辺
Susumu Hirasawa
享 平沢
Kazushi Miwa
一志 三輪
Atsushi Sekine
篤 関根
Hideki Ohata
秀樹 大畑
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Hitachi Automotive Systems Engineering Co Ltd
Original Assignee
Hitachi Automotive Engineering Co Ltd
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Automotive Engineering Co Ltd, Hitachi Ltd filed Critical Hitachi Automotive Engineering Co Ltd
Priority to JP18342092A priority Critical patent/JPH0626418A/en
Publication of JPH0626418A publication Critical patent/JPH0626418A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent a coil from burning out even when a thermal shock is applied on it and the coil is made finer and moulded on its outer sheath by providing a part to connect with the coil and a part to bind the coil on its both sides on a connector integrally provided with a bobbin. CONSTITUTION:Between a core 3 and a case 4, a coil 2 to wind around a bobbin 11 to magnetize a magnetic circuit and an outer sheath mould 10 to wrap the coil 2 are provided. Especially, on a connector 22 integrally provided with the bobbin 11, a part to connect with the coil 2 and parts 36, 37 to bind the coil 2 on its both sides are provided. Additionally, on both sides of a connection part 35, the coil 2 is bound around the connector 22 more than once, and an angle part of the bobbin 11 where a part to start winding the coil 2 and a part to finish winding it make contact with is rounded. Consequently, stress does not concentrate on a bent part. Accordingly, it is possible to avoid residual stress influencing upon durability against thermal shock and others even after the coil part 2 is moulded on its outer sheath.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は燃料噴射弁にかかり、特
に、内燃機関用燃料噴射弁に好適な電磁式燃料噴射弁用
ボビンに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel injection valve, and more particularly to an electromagnetic fuel injection valve bobbin suitable for an internal combustion engine fuel injection valve.

【0002】[0002]

【従来の技術】特開昭54−114642号公報等に記載された
従来の燃料噴射弁のように、外装モールドが施されてい
ないボビンにおいては、巻線を細線化した時の問題点を
考慮した構造になっていない。具体的にはコネクタ部へ
のコイルの絡げ部や、コイルが接触するボビンの角部R
はなく、外装モールドがあってもコイルの線径が太い場
合が多く、断線等の不具合が出にくいため、絡げ部や、
ボビン角部のRは施されていない。
2. Description of the Related Art In a bobbin which is not provided with an outer mold like the conventional fuel injection valve described in JP-A-54-114642, etc., a problem when the winding is thinned is considered. The structure is not. Specifically, the coil entangled portion with the connector portion, and the corner portion R of the bobbin with which the coil contacts
However, even if there is an outer mold, the wire diameter of the coil is often large, and problems such as disconnection are unlikely to occur,
The corners of the bobbin are not rounded.

【0003】[0003]

【発明が解決しようとする課題】近年の噴射弁は、外付
け抵抗や、電流制限の噴射弁駆動回路を無くすことによ
るシステムのコストダウンを図るため、高抵抗化され、
コイル線径が細くなっている。また、エンジンの高出力
化や、エンジンルームの小型化により噴射弁にかかる温
度が高くなることで、冷却のためにコイルの外周を燃料
で冷すサイドフィードタイプの噴射弁が要求される。そ
こで、燃料がコイル外周に流れるためコイルには外装モ
ールドが施されコイルが燃料に直接触れないようにする
が、細い線径のコイルが外装のモールドに覆われた状態
で冷熱が繰り返されることになり、コイルに伸縮の疲労
的な力がかかる。ここで特に、コイルとコネクタの接合
部は接合時の残留応力が残っていたり、接合後にコネク
タが外装モールドからはみ出さないように折り曲げるこ
とでコイルや接合部に引っ張り力が残った状態で外装モ
ールドされるためコイルや接合部の強度が低下する。ま
た、コイルがボビンに巻かれるときに、巻き始めの部分
や、巻き終わりの部分においてコイルがボビンと接触す
る、特に角部においてコイルが角部のエッジに押し当て
られた状態で折り曲げられ、そのままの状態で外装モー
ルドされるためコイル部の強度が低下する。このような
状態で使用され自動車の非常に厳しい冷熱が繰り返され
ると、コイルが断線し、燃料が噴射されなくなる不具合
が発生する。
The injection valve of recent years has a high resistance in order to reduce the system cost by eliminating the external resistance and the current limiting injection valve drive circuit.
The coil wire diameter is thin. Further, since the temperature applied to the injection valve becomes high due to the high output of the engine and the miniaturization of the engine room, a side-feed type injection valve in which the outer circumference of the coil is cooled with fuel is required for cooling. Therefore, since the fuel flows to the outer circumference of the coil, an outer mold is applied to the coil so that the coil does not come into direct contact with the fuel, but cold heat is repeated with the coil having a small wire diameter covered by the outer mold. And the coil is subjected to expansion and contraction fatigue force. Here, especially in the joint between the coil and the connector, residual stress at the time of joining remains, or by bending so that the connector does not protrude from the outer mold after joining, the outer mold with the tensile force remaining in the coil and the joint As a result, the strength of the coil and the joint is reduced. Also, when the coil is wound on the bobbin, the coil comes into contact with the bobbin at the winding start portion and the winding end portion, especially at the corner portion, the coil is bent while being pressed against the edge of the corner portion, Since the outer casing is molded in this state, the strength of the coil portion decreases. If the vehicle is used in such a state and extremely severe cold heat is repeated, the coil will be disconnected and fuel will not be injected.

【0004】本発明の目的は、コイルが細線化され、外
装モールドされて冷熱がかかってもコイルが断線しない
信頼性の高い噴射弁を提供することにある。
It is an object of the present invention to provide a highly reliable injection valve in which the coil is thinned and is externally molded so that the coil does not break even if cold heat is applied.

【0005】[0005]

【課題を解決するための手段】上記目的を達成するた
め、本発明は、ボビンと一体に設けられたコネクタに、
コイルと接合する部分とその両側にコイルを絡げる部分
を設け、接合部の両側はコイルをコネクタに1回以上絡
げ、更に、コイルの巻き始めと巻き終わりの部分が接触
するボビンの角部をR化するものである。
In order to achieve the above-mentioned object, the present invention provides a connector provided integrally with a bobbin,
The part that joins the coil and the part that entangles the coil are provided on both sides of the part. The coil is entangled on the connector at least once on both sides of the joint, and the angle of the bobbin where the beginning and end of the coil contact The part is to be R-shaped.

【0006】[0006]

【作用】コイルと接合する部分の両側にコイルを1回以
上絡げることにより、接合後にコネクタを曲げたときに
接合部のコイルに引っ張り力が働かない。また、コイル
の巻き始めと巻き終わりの部分が接触するボビンの角部
にRを付けることにより、曲げ部に応力が集中すること
が無くなる。以上の作用により、コイル部が外装モール
ドされた後でも冷熱等の耐久に影響をおよぼす残留応力
や、応力集中が避けられる。
The coil is entangled at least once on both sides of the portion to be joined to the coil, so that when the connector is bent after joining, no tensile force acts on the coil at the joined portion. Further, by applying R to the corners of the bobbin where the winding start portion and the winding end portion of the coil come into contact with each other, stress is prevented from concentrating on the bent portion. With the above operation, even after the coil portion is externally molded, residual stress that affects durability such as cold heat and stress concentration can be avoided.

【0007】[0007]

【実施例】以下、本発明の一実施例を図1,図2により
説明をする。磁気回路は、固定鉄芯(コア)3,ケース
4,プランジャ5からなり、コア3の内部には、プラン
ジャ5とボール弁6からなる弁体をノズル7のシート面
8に押圧するスプリング9が設けられる。またコア3と
ケース4の間には、磁気回路を励磁するところのボビン
11に巻かれるコイル2,コイル2を包む外装モールド
10が設けられる。ケース4とコア3の間には、その隙
間から外部へ漏れる燃料をシールするOリング12が設
けられる。コア上部にはコイル2へ信号を送るコネクタ
22との間にOリング23及びヨークモールドの進入を
防ぐプラグ24が設けられている。ケース4にはOリン
グ13,燃料通路14、その外周にフィルタ15、さら
にストッパ16と、その内部にボール弁6をガイドする
スワラ17を持つノズル7が取り付けられる。また、ケ
ース4上部にはコイル2に信号を伝える端子18と、端
子を囲みコネクタを形成し、しかもコア及びヨーク上部
全体を覆うヨークモールド1が設けられている。弁体
は、プランジャ5,ボール弁6,ガイドリング19が一
体に結合され、ガイドリング19はコア3先端内径20
内径でガイドされる。ノズル7には、ボール弁6をガイ
ドし、燃料に旋回力を与えるスワラ17,ノズル外周に
はOリング21を設けている。ボビン11は、図2,図
3に示すようにコネクタ22と一体に成形される。コネ
クタ22はコイルを接合する接合部35(長さL0部)
とその前後にコイルを絡げる絡げ部36,37(長さ
2,L1部)、及びターミナルとの接合部38から成
る。また、コイルの巻き始めと巻き終わりに接触する部
分の形状を図3に示すが、コネクタ22の絡げ部37か
らボビン11の巻き部101に至までの導入部40のコ
イル201が接触する角部41,42,43、及び、巻
き終わりの絡げ部に至る前に接触する角部44に、使用
されるコイル線径の1倍以上のRが付けられる。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The magnetic circuit is composed of a fixed iron core (core) 3, a case 4, and a plunger 5. Inside the core 3, a spring 9 for pressing a valve body composed of the plunger 5 and a ball valve 6 against the seat surface 8 of the nozzle 7 is provided. It is provided. Further, between the core 3 and the case 4, an exterior mold 10 that encloses the coil 2 and the coil 2 wound around the bobbin 11 that excites the magnetic circuit is provided. An O-ring 12 is provided between the case 4 and the core 3 to seal the fuel leaking to the outside through the gap. An O-ring 23 and a plug 24 for preventing the intrusion of the yoke mold are provided on the upper part of the core between the connector 22 for sending a signal to the coil 2. The case 4 is provided with an O-ring 13, a fuel passage 14, a filter 15 on the outer periphery thereof, a stopper 16, and a nozzle 7 having a swirler 17 for guiding the ball valve 6 therein. Further, a terminal 18 for transmitting a signal to the coil 2 and a yoke mold 1 which surrounds the terminal and forms a connector and which covers the entire core and the upper portion of the yoke are provided on the upper portion of the case 4. The valve body includes a plunger 5, a ball valve 6 and a guide ring 19 which are integrally connected to each other.
Guided by inner diameter. The nozzle 7 is provided with a swirler 17 for guiding the ball valve 6 and giving a swirling force to the fuel, and an O-ring 21 on the outer circumference of the nozzle. The bobbin 11 is formed integrally with the connector 22 as shown in FIGS. The connector 22 is a joint portion 35 (length L 0 portion) for joining the coil.
And entangled portions 36 and 37 (lengths L 2 and L 1 portions) for entwining the coil, and a joint portion 38 with the terminal. 3 shows the shapes of the portions that come into contact with the winding start and the winding end of the coil, but the angle at which the coil 201 of the introduction portion 40 from the entwined portion 37 of the connector 22 to the winding portion 101 of the bobbin 11 makes contact R of 1 times or more of the coil wire diameter used is attached to the portions 41, 42, 43 and the corner portion 44 that contacts before reaching the winding end entanglement portion.

【0008】上記構成のもとに、噴射弁の動作を説明を
する。コイル2に電気信号が印加されると、コア3,ケ
ース4,プランジャ5で磁気回路が構成され、プランジ
ャ5がガイドリング19及びボール弁6外周をコア及び
スワラでガイドされコア3側に吸引される。プランジャ
5はボール弁6と一体に結合されており、プランジャ5
が移動することでボール弁6も移動して、ノズル7のシ
ート面8から離れ開弁する。燃料は、燃料ポンプ,燃圧
レギュレータにより加圧調整され、噴射弁の内部にケー
ス4の燃料通路14を通り、ケース4と外装モールドの
間、プランジャ5とケース4の間を通って流れ、シート
部8上部に供給される。シート部8上部に供給された燃
料は、スワラ17によって旋回力が与えられ、オリフィ
ス25を通って噴射弁の外へ噴射される。
Based on the above structure, the operation of the injection valve will be described. When an electric signal is applied to the coil 2, a magnetic circuit is formed by the core 3, the case 4, and the plunger 5, and the plunger 5 is guided around the guide ring 19 and the outer circumference of the ball valve 6 by the core and the swirler to be attracted to the core 3 side. It The plunger 5 is integrally connected with the ball valve 6, and the plunger 5
Moves, the ball valve 6 also moves, and the valve surface separates from the seat surface 8 of the nozzle 7 and opens. The fuel is pressurized and adjusted by a fuel pump and a fuel pressure regulator, flows through the fuel passage 14 of the case 4 inside the injection valve, between the case 4 and the outer mold, and between the plunger 5 and the case 4, and the seat portion is formed. 8 is supplied to the upper part. The swirler 17 gives a swirling force to the fuel supplied to the upper portion of the seat portion 8, and the fuel is injected to the outside of the injection valve through the orifice 25.

【0009】次にコイル巻きについて説明する。巻き始
めは図4に示すように、絡げ部36に1回以上巻かれ、
接合部35を通った後から下部37に1回以上巻かれた
あとコイル導入部40を通り、巻き部101に巻かれ
る。その際、導入部40の角部41,42,43に接触
しながら巻かれていく。巻き終わり部は、図5に示すよ
うに角部44に接触しながら絡げ部37に1回以上巻か
れ接合部35を通り、絡げ部36に1回以上巻かれてコ
イル巻きは終了する。コイル巻き終了後はコイルの外側
をプラスチックのモールドでおおい、コイル部に燃料が
入り込むことを防止する。
Next, the coil winding will be described. At the beginning of winding, as shown in FIG.
After passing through the joint portion 35, the lower portion 37 is wound one or more times, then passes through the coil introducing portion 40, and is wound around the winding portion 101. At that time, it is wound while contacting the corner portions 41, 42, 43 of the introduction portion 40. As shown in FIG. 5, the winding end portion is wound around the entangled portion 37 one or more times while being in contact with the corner portion 44, passes through the joint portion 35, is wound around the entangled portion 36 one or more times, and the coil winding is completed. . After the coil is wound, the outside of the coil is covered with a plastic mold to prevent fuel from entering the coil.

【0010】以上のような構成のもとに、コイルとコネ
クタの接合部には両側の絡げにより外部からの余分な応
力は残らず、更に、巻き始めや巻き終わりのボビンと接
触する部分はボビンに設けたRの効果により応力の集中
は少なく、応力が残った状態での外装モールドの冷熱に
よる伸縮応力による疲労強度の悪化はない。
With the above-mentioned structure, no extra stress is left from the outside due to the entanglement on both sides of the joint between the coil and the connector, and the portion that comes into contact with the bobbin at the beginning or end of winding is Due to the effect of R provided on the bobbin, the concentration of stress is small, and the fatigue strength does not deteriorate due to the expansion and contraction stress due to the cold heat of the exterior mold when the stress remains.

【0011】[0011]

【発明の効果】本発明によれば、コイルが細線化され、
外装モールドされて冷熱がかかってもコイルが断線しな
い信頼性の高い噴射弁を提供できる。
According to the present invention, the coil is thinned,
It is possible to provide a highly reliable injection valve in which the coil is not broken even when it is externally molded and cold heat is applied.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例の噴射弁の断面図である。FIG. 1 is a sectional view of an injection valve according to an embodiment of the present invention.

【図2】本発明の一実施例のボビン形状を示す図であ
る。
FIG. 2 is a diagram showing a bobbin shape according to an embodiment of the present invention.

【図3】本発明の一実施例のボビンのコイル巻き始めと
巻き終わり部を示す図である。
FIG. 3 is a diagram showing a coil winding start and winding end portion of a bobbin according to an embodiment of the present invention.

【図4】本発明の一実施例のコイルの巻き始めの状態を
示す図である。
FIG. 4 is a diagram showing a winding start state of a coil according to an embodiment of the present invention.

【図5】本発明の一実施例のコイルの巻き終わりの状態
を示す図である。
FIG. 5 is a diagram showing a winding end state of the coil according to the embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1…ヨークモールド、2…コイル、3…コア、4…ケー
ス、9…スプリング、10…外装モールド、11…ボビ
ン、19…ガイドリング、22…コネクタ、35…接合
部、36,37…絡げ部、40…コイル導入部、41,
42,43,44…角部。
DESCRIPTION OF SYMBOLS 1 ... Yoke mold, 2 ... Coil, 3 ... Core, 4 ... Case, 9 ... Spring, 10 ... Exterior mold, 11 ... Bobbin, 19 ... Guide ring, 22 ... Connector, 35 ... Joint part, 36, 37 ... Entanglement Part, 40 ... Coil introducing part, 41,
42, 43, 44 ... Corners.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 田辺 好之 茨城県勝田市大字高場2520番地 株式会社 日立製作所自動車機器事業部内 (72)発明者 平沢 享 茨城県勝田市大字高場2520番地 株式会社 日立製作所自動車機器事業部内 (72)発明者 三輪 一志 茨城県勝田市大字高場2520番地 株式会社 日立製作所自動車機器事業部内 (72)発明者 関根 篤 茨城県勝田市大字高場字鹿島谷津2477番地 3 日立オートモティブエンジニアリング 株式会社内 (72)発明者 大畑 秀樹 茨城県勝田市大字高場2520番地 株式会社 日立製作所自動車機器事業部内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshiyuki Tanabe 2520, Takaba, Katsuta-shi, Ibaraki Hitachi, Ltd., Automotive Equipment Division (72) Inventor, Hirasawa 2520, Takata, Katsuta, Ibaraki Hitachi, Ltd. Automotive Equipment Division (72) Inventor Kazushi Miwa 2520, Takaba, Katsuta-shi, Ibaraki Hitachi, Ltd. Automotive Equipment Division (72) Inventor Atsushi Sekine 2477, Kashimayatsu, Katsuta, Ibaraki Pref. 3 Hitachi Automotive Engineering Co., Ltd. (72) Inventor Hideki Ohata 2520 Takaba, Katsuta City, Ibaraki Prefecture Hitachi Automotive Systems Division

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】噴射弁本体の内部に固定された励磁コイ
ル,コイルが巻かれるボビン,コイル部を包む外装モー
ルド,固定鉄芯、及びケースを含むコイル組立体を有
し、固定鉄芯と対向し運動する可動鉄芯が、コイル組立
体を励磁することでコア側に吸引され、プランジャのコ
アとは反対側に設けられた弁を弁座から離脱させること
で燃料を噴射する構造を有する内燃機関用の電磁式燃料
噴射弁において、ボビンと一体に設けられたコネクタ
に、コイルと接合する部分とその両側にコイルを絡げる
部分を設けたことを特徴とする電磁式燃料噴射弁用ボビ
ン。
1. An exciting coil fixed inside an injection valve body, a bobbin around which the coil is wound, an outer mold enclosing the coil portion, a fixed iron core, and a coil assembly including a case, and faces the fixed iron core. The moving internal iron core is attracted to the core side by exciting the coil assembly, and the fuel is injected by separating the valve provided on the side opposite to the core of the plunger from the valve seat. An electromagnetic fuel injection valve for an engine, characterized in that a connector integrally formed with the bobbin is provided with a portion to be joined with the coil and a portion to entangle the coil on both sides thereof. .
【請求項2】噴射弁本体の内部に固定された励磁コイ
ル,コイルが巻かれるボビン,コイル部を包む外装モー
ルド,固定鉄芯、及びケースを含むコイル組立体を有
し、固定鉄芯と対向し運動する可動鉄芯が、コイル組立
体を励磁することでコア側に吸引され、プランジャのコ
アとは反対側に設けられた弁を弁座から離脱させること
で燃料を噴射する構造を有する内燃機関用の電磁式燃料
噴射弁において、コイルの巻きはじめと巻き終わりの部
分が接触するボビンの角部にコイルの線径以上のRを設
けたことを特徴とする電磁式燃料噴射弁用ボビン。
2. An exciting coil fixed inside the injection valve body, a bobbin around which the coil is wound, an outer mold enclosing the coil portion, a fixed iron core, and a coil assembly including a case, and faces the fixed iron core. The moving internal iron core is attracted to the core side by exciting the coil assembly, and the fuel is injected by separating the valve provided on the side opposite to the core of the plunger from the valve seat. A bobbin for an electromagnetic fuel injection valve, characterized in that, in an electromagnetic fuel injection valve for an engine, a radius R equal to or larger than a wire diameter of the coil is provided at a corner portion of the bobbin where a winding start portion and a winding end portion contact.
【請求項3】特許請求の範囲第1項において、コイルの
巻きはじめと巻き終わりの部分が接触するボビンの角部
にコイルの線径以上のRを設けたことを特徴とする電磁
式燃料噴射弁用ボビン。
3. The electromagnetic fuel injection system according to claim 1, wherein R, which is equal to or larger than the wire diameter of the coil, is provided at the corner of the bobbin where the winding start and winding end contact. Bobbin for valve.
JP18342092A 1992-07-10 1992-07-10 Bobbin for solenoid type fuel injection valve Pending JPH0626418A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18342092A JPH0626418A (en) 1992-07-10 1992-07-10 Bobbin for solenoid type fuel injection valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18342092A JPH0626418A (en) 1992-07-10 1992-07-10 Bobbin for solenoid type fuel injection valve

Publications (1)

Publication Number Publication Date
JPH0626418A true JPH0626418A (en) 1994-02-01

Family

ID=16135472

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18342092A Pending JPH0626418A (en) 1992-07-10 1992-07-10 Bobbin for solenoid type fuel injection valve

Country Status (1)

Country Link
JP (1) JPH0626418A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7293757B2 (en) 2004-09-27 2007-11-13 Keihin Corporation Electromagnetic fuel injection valve
JP2013535827A (en) * 2010-07-27 2013-09-12 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Solenoid actuator
CN104114844A (en) * 2012-04-18 2014-10-22 三菱电机株式会社 Solenoid-operated fuel injection valve

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7293757B2 (en) 2004-09-27 2007-11-13 Keihin Corporation Electromagnetic fuel injection valve
JP2013535827A (en) * 2010-07-27 2013-09-12 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Solenoid actuator
US9401236B2 (en) 2010-07-27 2016-07-26 Robert Bosch Gmbh Magnetic actuator
CN104114844A (en) * 2012-04-18 2014-10-22 三菱电机株式会社 Solenoid-operated fuel injection valve
JPWO2013157089A1 (en) * 2012-04-18 2015-12-21 三菱電機株式会社 Electromagnetic fuel injection valve
US9512810B2 (en) 2012-04-18 2016-12-06 Mitsubishi Electric Corporation Electromagnetic fuel injection valve

Similar Documents

Publication Publication Date Title
JP2986542B2 (en) Solenoid operated valve
JP3737130B2 (en) Fuel injection valve and manufacturing method thereof
JP3338614B2 (en) Fuel injection valve
US6592052B2 (en) Commutator of motor and method of manufacturing the same
US5185919A (en) Method of manufacturing a molded fuel injector
US4996764A (en) Method of manufacturing an electromagnetically actuatable valve
US20090301442A1 (en) Fuel injector
US8833678B2 (en) Electromagnetically operatable valve
JPS61205372A (en) Fuel jet valve operable electromagnetically and its production
US5533249A (en) Method of making a two piece stator with magnetic bobbin
JPH0626418A (en) Bobbin for solenoid type fuel injection valve
US4362051A (en) Fuel injection nozzle holder for internal combustion engines
JPH11166461A (en) Solenoid fuel injection valve
JP4158348B2 (en) Fuel injection valve and assembly method of fuel injection valve
JP3326077B2 (en) In-cylinder fuel injection valve
JP2846198B2 (en) Electromagnetic fuel injection valve
JP2969763B2 (en) Electromagnetic fuel injection device
JP3505319B2 (en) Ignition device for internal combustion engine and method of manufacturing the same
JPH0215286Y2 (en)
JP3023828B2 (en) Electromagnetic fuel injection valve
JPH0223269A (en) Ignition coil for internal combustion engine
JPH0631581B2 (en) Electromagnetic fuel injection valve
JP3702145B2 (en) Unitized injector
JPH0650235A (en) Electromagnetic fuel injection valve
JPH0828390A (en) Electromagnetic fuel injection valve