JPS62118054A - Solenoid operated fuel injection valve - Google Patents
Solenoid operated fuel injection valveInfo
- Publication number
- JPS62118054A JPS62118054A JP61270027A JP27002786A JPS62118054A JP S62118054 A JPS62118054 A JP S62118054A JP 61270027 A JP61270027 A JP 61270027A JP 27002786 A JP27002786 A JP 27002786A JP S62118054 A JPS62118054 A JP S62118054A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- fuel injection
- needle valve
- nozzle body
- plunger
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
- F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
- F02M51/0675—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the valve body having cylindrical guiding or metering portions, e.g. with fuel passages
- F02M51/0678—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the valve body having cylindrical guiding or metering portions, e.g. with fuel passages all portions having fuel passages, e.g. flats, grooves, diameter reductions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/08—Injectors peculiar thereto with means directly operating the valve needle specially for low-pressure fuel-injection
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
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
【発明の詳細な説明】
産業上の利用分野
本発明は、強磁性の材料から成る弁ケーシングと電磁コ
イルによって取ジ囲まれているコアと、該コアと協働す
るプランジャとを有しており、該プランジャが、ニード
ル弁と固定的に結合されており、前記電磁コイルが励磁
状態にある場合には、ニードル弁の、前記コアに向いた
側のストッパショルダが、弁ケーシングとニードル弁と
の間に案内されていてノズル体に固定されたストッパプ
レートに当接し、電磁コイルが励磁していない場合には
、前記ニードル弁のシール部分が、弁座面に当接するよ
うになっている形式の、内燃機関の燃料噴射装置のため
の、電磁操作される燃料噴射弁に関する。DETAILED DESCRIPTION OF THE INVENTION Industrial Application The invention comprises a valve casing of ferromagnetic material, a core surrounded by an electromagnetic coil, and a plunger cooperating with the core. , the plunger is fixedly connected to the needle valve, and when the electromagnetic coil is energized, the stop shoulder of the needle valve on the side facing the core is in contact with the valve casing and the needle valve. The seal part of the needle valve comes into contact with the valve seat surface when the electromagnetic coil is not excited. , relates to an electromagnetically operated fuel injection valve for a fuel injection system of an internal combustion engine.
従来の技術
ドイツ連邦共和国特許出願公開第２０３４０７８号明細
曹においてすでに公知である燃料噴射弁は、燃料噴射量
の調量が、弁座面と、弁体の円錐形のシール部分との間
の環状ヤヤツプにおいて行なわれるようになっている。BACKGROUND OF THE INVENTION A fuel injection valve, which is already known from German Patent Application No. 2034078, is such that the metering of the amount of fuel injected is carried out in an annular manner between a valve seat surface and a conical sealing part of a valve body. It is now being carried out in Yayatsu.
この燃料噴射弁は、ニードル弁の行程で噴射量を調量す
ることを問題にしている。この種の電磁式噴射弁の静的
な噴射量の補正は、弁？取付ける前に、切削工具によっ
て弁座面？適当に加工することによって行なわれる。ニ
ードル弁の行程で噴射量？調量する形式の燃料噴射弁は
、ニードル弁の作業行程が非常に小さいので弁座面の加
工の際のわずかな誤差でさえも、燃料噴射量の調１にか
なりの誤差が生じてしまう。弁座面を所望通ジに精確に
加工することは、今日の技術的な手段では達成されえな
いことが判っている。The problem with this fuel injection valve is that the injection amount is adjusted by the stroke of the needle valve. Is it possible to correct the static injection amount of this type of electromagnetic injection valve? Before installation, cut the valve seat surface with a cutting tool? This is done by appropriate processing. Is the injection amount determined by the stroke of the needle valve? In metering type fuel injection valves, the working stroke of the needle valve is very small, so even a slight error in machining the valve seat surface will cause a considerable error in the amount of fuel injected. It has been found that precisely machining the valve seat surface to the desired thread cannot be achieved with today's technical means.
発明の課題
本発明の課題は、燃料噴射量の調量？極めて正確に行な
うことができるような燃料噴射弁を提供することにある
。Problems of the Invention Is the problem of the present invention to adjust the amount of fuel injection? The object of the present invention is to provide a fuel injection valve that can perform injections extremely accurately.
課題？解決するための手段
前述の問題点を解決するために、本発明ではストッパプ
レートと前記ノズル体との間に、少なくとも１つの嵌合
円板が設けられているようにした。assignment? Means for Solving the Problems In order to solve the above-mentioned problems, in the present invention, at least one fitting disc is provided between the stopper plate and the nozzle body.
発明の効果
本発明の燃料噴射弁によって得られる効果は、弁行程の
調整金、速やかに経済的に、とりわけ高精度に行なうこ
とができるということである。Effects of the Invention The effect achieved by the fuel injection valve of the invention is that the adjustment of the valve stroke can be carried out quickly, economically and, above all, with high precision.
厚さがＱ、Ｑ Ｑ ２ ｍｒｎ：））誤差金越えること
がないような、高い精度で圧延された鋼薄板から、正確
な厚さ？有する簡単で経隘的な嵌合円板金、たとえば打
抜きにより製造できる。The thickness is Q, Q Q 2 mrn:)) The exact thickness is made from a thin steel plate rolled with high precision so that the error does not exceed the tolerance limit? It can be manufactured by a simple and time-consuming fitting disc metal sheet, for example, by stamping.
実施例
図に示す混合気圧縮火花点火式内燃機関の燃料噴射装置
のための燃料噴射弁は、強磁性の材料から成る弁ケーシ
ング１全有しており、該弁ケーシング１内のコイル支持
体２上には電磁コイル３が配設されている。この電磁コ
イル３は、弁ケーシングの一部？取り囲む合成樹脂リン
グ５内に埋め込まれている差込み接続部４？介して電流
？供給されている。電磁コイル３のコイル支持体２ｆ′
ｉ、弁ケーシング１のコイル室γ内に、しかもたとえば
ガソリンのような燃ｆ４を供給する部分的に升ケーシン
グ１内に突入している接続部８上に設けられている。弁
ケーシング１の、接続部８とは反対側の円筒形の保持部
分９は、ノズル体１０の一部を取り囲んでいる。The fuel injection valve for a fuel injection device for a mixture compression spark ignition internal combustion engine shown in the drawings has a valve casing 1 entirely made of a ferromagnetic material, and a coil support 2 in the valve casing 1. An electromagnetic coil 3 is arranged above. Is this electromagnetic coil 3 part of the valve casing? Plug-in connection 4 embedded in surrounding synthetic resin ring 5? Current through? Supplied. Coil support 2f' of electromagnetic coil 3
i, in the coil chamber γ of the valve housing 1 and on a connection 8 which partially protrudes into the housing 1, supplying a fuel f4, for example gasoline. A cylindrical holding part 9 of the valve housing 1 opposite the connection part 8 partially surrounds the nozzle body 10 .
弁ケーシング１とノズル体１０との間には軸方向に、一
方の扁平面１２が弁ケーシング１の、ノズル体１０の方
に向いた内側ショルダ１１に平行に当接するストッパル
−ト１３が設けられており、該ストッパプレートの、前
記扁平面１２に対して平行に延びる他方の扁平面１ｄに
は、嵌合円板１４が当接している。前記嵌合円板１４に
、必要な場合にはノズル体１０へ向かう方向く少なくと
も１つの嵌合円板をさらに配設することができる。ノズ
ル体１０の端面１１は前記１沃合円板１４と当接する。A stopper 13 is provided in the axial direction between the valve housing 1 and the nozzle body 10, the one flat surface 12 of which rests parallel to the inner shoulder 11 of the valve housing 1 facing towards the nozzle body 10. A fitting disk 14 is in contact with the other flat surface 1d of the stopper plate, which extends parallel to the flat surface 12. If necessary, at least one further fitting disk can be arranged on the fitting disk 14 in the direction toward the nozzle body 10. The end face 11 of the nozzle body 10 abuts against the first circular plate 14.
従って、ストッパプレート１３とノズル体１０との間に
位置する単数又は複数の嵌合円板１４は、ストッパプレ
ート１３と同じ長さの外径七有している。Therefore, the one or more fitting discs 14 located between the stopper plate 13 and the nozzle body 10 have an outer diameter of seven, which is the same length as the stopper plate 13 .
さらに嵌合円板１４は、ストッパプレート１３の同軸的
な流過孔１５の直径よりも大きい。この流過孔１５とス
トッパプレート１３の内周との間には、内法が、ニード
ル弁１９の、流過孔１５の内部に位置する部分の直径よ
りも大きいような切欠き１８が設けられている。Furthermore, the mating disc 14 is larger in diameter than the coaxial flow hole 15 of the stopper plate 13 . A notch 18 is provided between the flow hole 15 and the inner periphery of the stopper plate 13, the inner diameter of which is larger than the diameter of the portion of the needle valve 19 located inside the flow hole 15. ing.
接続部８の端面２０とストッパプレート１３との間には
、燃料噴射弁の円筒形の７°ランジヤ２３が設けられて
いる。プランジヤ２３ば、耐腐食性の磁気材料から成っ
て２ジ、かつ弁ケーシング１の磁束案内部５０に対して
半径方向にわずかに間隔？おいて磁気ギャップを形成し
ながら弁ケーシング１内に同１助的に配役されている。A 7° cylindrical flange 23 of the fuel injection valve is provided between the end face 20 of the connecting portion 8 and the stopper plate 13. The plunger 23 is made of a corrosion-resistant magnetic material and is slightly spaced radially from the magnetic flux guiding section 50 of the valve casing 1. The valve casing 1 is disposed within the valve casing 1 while forming a magnetic gap therebetween.
円筒形のプランジャ２３は、その両端面から出発する、
同軸的な第１０袋孔２４と第２０袋孔２５とを僧えてお
り、第２０袋孔２５は、ノズル体１０へと開いておりか
つ同軸的な通路２８を介して第１の袋孔２４と連通して
いる。The cylindrical plunger 23 starts from both end faces thereof.
The 10th blind hole 24 and the 20th blind hole 25 are coaxial, and the 20th blind hole 25 opens to the nozzle body 10 and passes through the coaxial passage 28 to the first blind hole 24. It communicates with
通路２８の直径は第１の袋孔２４の直径よりも小さい。The diameter of the passage 28 is smaller than the diameter of the first blind hole 24.
プランジヤ２３のノズル体１０の方に向いていて第２の
袋孔２５を有する部分は、かしめ部分２９として形成さ
れている。このかしめ部分２９は、ニードル弁１９の一
部分金形成しかつ第２の袋孔２５内に突入する保持体３
０の外周？つかむことによって、プランジャ２３？、ニ
ードル弁１９と形状接続的に結合させるという役割を有
する。プランジャのかしめ部分２９全かじめることによ
って、保持体３０をプランジヤ２３と結合できる。かし
めによって、かしめ部分２９の材料は、保持体３ａに設
けられたリング溝３１内に押込められる。プランジャ２
３の、接続部８側の第１の袋孔２４の底部には、第１の
袋孔２４によって半径方向で案内される圧縮ばね３５が
載着されてｊ＝−ジ、該圧縮ばね３５は他面では、接続
部８内に嵌め込まれた挿入管３６に当接しており、かつ
圧縮ばねはプランジヤ２３とニードル弁１９とを、接続
部８とは反対側に働く力で負荷しようとする。The part of the plunger 23 facing the nozzle body 10 and having the second blind hole 25 is formed as a caulking part 29 . This caulking portion 29 is partially metal-formed by the needle valve 19 and extends from the holder 3 which projects into the second blind hole 25.
The outer circumference of 0? By grabbing plunger 23? , has the role of being positively connected to the needle valve 19. The holder 30 can be coupled to the plunger 23 by completely crimping the crimped portion 29 of the plunger. By crimping, the material of the crimped portion 29 is forced into the ring groove 31 provided in the holder 3a. Plunger 2
3, a compression spring 35 guided in the radial direction by the first blind hole 24 is mounted on the bottom of the first blind hole 24 on the connection part 8 side. On the other hand, it abuts the insertion tube 36 inserted into the connection 8 and the compression spring tends to load the plunger 23 and the needle valve 19 with a force acting on the opposite side of the connection 8.
ニードル弁１９は、半径方向に遊びを有しながらストッ
パプレート１３内の流過孔１５、嵌合円板１４の内孔２
１、ノズル体１０内のガイド孔３７？貫通し、かつニー
ドル弁のニードルビン３８は、ノズル体１υの噴射開口
部３９から突出している。ノズル体１０のガイド孔３７
と噴射開口部３９との間には、円錐形の弁座面４０が形
成されており、該弁座面４０は、ニードル升１９０円錐
形のシール部分４１と協働する。シール部分４１から出
発してニードル弁１９とプランジヤ２３と全合わせ之長
さは、プホンジャ２３が、電磁；イル３の非励磁状態に
おいて、接続部８の端面２０に対して作業ギャップを解
放するように設計されている。電＠；イル３が励磁され
る場合には、プランジヤ２３と接続部８との間が直接接
触することなく、前記の作業イヤツゾの幅が減少する。The needle valve 19 has a play in the radial direction and is connected to the flow hole 15 in the stopper plate 13 and the inner hole 2 of the fitting disc 14.
1. Guide hole 37 in the nozzle body 10? The needle pin 38 of the needle valve runs through it and projects from the injection opening 39 of the nozzle body 1υ. Guide hole 37 of nozzle body 10
A conical valve seat surface 40 is formed between the injection opening 39 and the injection opening 39, which valve seat surface 40 cooperates with a conical sealing part 41 of the needle square 190. The total length of the needle valve 19 and the plunger 23 starting from the sealing part 41 is such that the plunger 23 releases a working gap with respect to the end face 20 of the connection part 8 in the de-energized state of the electromagnetic coil 3. It is designed to. When the electric current 3 is energized, there is no direct contact between the plunger 23 and the connection part 8, and the width of the working ear is reduced.
ニードル弁１９は、２つのがイド部分４５゜４６を有し
てｊ？ジ、これら２つのガイド部分は、ニードル弁１９
勿ガイド孔３γ内で案内させるようにしかつ燃料のため
の報方向流過部を開放し、之とえば方形として形成され
ている。The needle valve 19 has two id portions 45 and 46. These two guide parts are connected to the needle valve 19.
Of course, it is guided in the guide hole 3γ and has an open flow passage for the fuel, which is designed, for example, as a rectangle.
電磁コイル３が励磁状態にある場合には、プランジャ２
３は、圧縮ばね３５０力に抗してニードル弁１９全開放
方向に移動せしめる。この場合、ニードル弁１９の嵌合
円板１４の内孔２１よりも小さい直径七有するストッパ
ショルダ４９は、ストッパプレート１３の、ノズル体１
０に向かう側の扁平面１６に当接する。When the electromagnetic coil 3 is in an excited state, the plunger 2
3 moves the needle valve 19 in the fully open direction against the force of the compression spring 350. In this case, the stopper shoulder 49, which has a diameter 7 smaller than the inner bore 21 of the fitting disc 14 of the needle valve 19, is connected to the nozzle body 1 of the stopper plate 13.
It abuts against the flat surface 16 on the side facing zero.
磁束は、弁ケーシング１の外壁全通って磁束案内部５０
？介して円筒形のプランジャ２３に伝導され、プランジ
ャ２３から、コアとして使用されている、伝導フランジ
５１′ｔ−有する接続８８に介して弁ケーシング１に戻
る。The magnetic flux passes through the entire outer wall of the valve casing 1 to the magnetic flux guide section 50.
? It is conducted via the cylindrical plunger 23 and from the plunger 23 back into the valve housing 1 via a connection 88 with a conduction flange 51' serving as the core.
弁行程を調節するために弁の開放時にニードル弁１９の
円錐形のシール部分４１と弁座面４０との間のギャップ
φつ撚科噴４［ｆｔＯ舎求される静的な調量が保証され
るような数と厚さ勿有する嵌合円板１４が、ストッパプ
レート１３とノズル体１０との間に嵌め込筐れる。この
場合、ノズル体ＩＬＩ、 ストッパプレート１３、ニー
ドル弁１９の長さは、嵌合円板１４を中間に侠１ない状
態で、これらの部分を組み立てる際に、ニードル弁１９
のシール部分４１が弁座面に遊びなしに当接し、かつニ
ードル弁のストッパショルダ４９がストッパプレート１
３の扁平面１６に当接するよりに選ばｔている。ま乏、
ノズル体１０、ストッパプレート１３、ニードル弁１９
の長さ？、これらの部分を組匁立てる際に、嵌合円板１
４を増ジ付けない状態でニードル弁１９がストッパショ
ルダ４９と、ストッパプレート１３の扁平側１６との間
に遊び金有して位置するように選んでおくこともでき、
しかもこの遊びは、所望の静的な燃料噴射ｔ （ｆ−得
るために、シール部分４１と弁座面４〔１との間で必要
であると推測される間隔よジも小さくされている。弁の
開放時に、シール部分４１と弁座面４Ｕとの間で調量さ
れる必要な静的な燃料噴＠量は、ストッパショルダ１３
とノズル体１υの端面１７との間に嘲方向に単数又は複
数の豚舎円板１４？はさみ込むことによってＡ′Ｎされ
る。調節後、弁ケーシング１の円筒形の保持部９の端部
５４のｆ＆ ｆｆｉノズル体１０の周りに曲げることに
よって、升ケーシング１とノズル体１０と全圧いに結合
する。In order to adjust the valve stroke, a gap φ between the conical sealing part 41 of the needle valve 19 and the valve seat surface 40 when the valve is opened ensures the required static metering. A fitting disc 14 having a number and thickness as shown in FIG. 1 is fitted and housed between the stopper plate 13 and the nozzle body 10. In this case, the lengths of the nozzle body ILI, stopper plate 13, and needle valve 19 are such that when assembling these parts without the fitting disc 14 in the middle, the needle valve 19
The seal portion 41 of the needle valve contacts the valve seat surface without any play, and the stopper shoulder 49 of the needle valve contacts the stopper plate 1.
3 is selected so as to abut against the flat surface 16 of No. 3. Poor,
Nozzle body 10, stopper plate 13, needle valve 19
The length of? , when assembling these parts, the fitting disc 1
It is also possible to select the needle valve 19 to be located with a play between the stopper shoulder 49 and the flat side 16 of the stopper plate 13 without adding the screw 4.
Moreover, this play also reduces the spacing that is estimated to be necessary between the sealing part 41 and the valve seat surface 4[1] in order to obtain the desired static fuel injection t(f-). When the valve is opened, the required static fuel injection amount measured between the seal portion 41 and the valve seat surface 4U is determined by the stopper shoulder 13.
and the end face 17 of the nozzle body 1υ. A'N is achieved by inserting it. After adjustment, the casing 1 and the nozzle body 10 are connected in a full-pressure manner by bending the end 54 of the cylindrical retaining part 9 of the valve casing 1 around the f&ffi nozzle body 10 .
喪作課差が厚さ０．００２ ｍｌｌ金兄ないような愼め
て正確な嵌合円板１４に使用することによって、簡単な
形式で迅速かつ正確に弁行程が決定される。By using a compact and precise mating disc 14 with a thickness of less than 0.002 ml, the valve stroke can be determined quickly and accurately in a simple manner.
図面は、本発明の燃料１償射弁の縦断面図である。
１・・弁ケーシング、２・・・コイル支持体、３″・電
磁コイル、４・・差込み受続部、５・・・合成慣・ｆ脂
すング、ｔ・コイル室、８・・・接続部、Ｓ・保持部、
１０・ノズル体、１１・・内側ショルダ、１２・・扁平
面、１３・・ストッパプレート、１４・・吠合円板、１
５・・・皿過孔、１６・・・扁平面、而
１γ−痛＼、１６−切欠き、１８・ニードル弁、２υ−
・端面、２１・・・内孔、２３・・プランジャ、２４・
・・袋孔、２５・・袋孔、２８・・・通路、２９・・か
しめ部分、３０・・保持体、３１・・リング考、３５・
・・圧縮はね、３６・・−仲人Ｌ ３γ・・・ガイド
孔、３８・・ニードルビン、３９・噴射開口部、４０・
・・弁１’Ｍ面、４１・・・シール部分、４５−ガイド
部分、４６・・・ガイド部分、４９・・ストッパショル
ダ、５０・・・磁束案内部、５１・・・伝導フランジ。The drawing is a longitudinal cross-sectional view of a single fuel injection valve of the present invention. 1...Valve casing, 2...Coil support body, 3''-Electromagnetic coil, 4...Plug-in receiving part, 5...Synthetic fitting/f greasing, t-Coil chamber, 8...Connection part, S/holding part,
10. Nozzle body, 11.. Inner shoulder, 12.. Flat surface, 13.. Stopper plate, 14.. Interlocking disc, 1
5... countersunk hole, 16... flat surface, 1γ-pain\, 16- notch, 18. needle valve, 2υ-
・End face, 21... Inner hole, 23... Plunger, 24...
... Blind hole, 25.. Blind hole, 28.. Passage, 29.. Caulking part, 30.. Holder, 31.. Ring consideration, 35.
・・Compression splash, 36・・Matchmaker L 3γ・・Guide hole, 38・・Needle bottle, 39・Spray opening, 40・
...Valve 1'M surface, 41...Seal portion, 45-Guide portion, 46--Guide portion, 49...Stopper shoulder, 50...Magnetic flux guide portion, 51...Conduction flange.
Claims (1)
噴射弁であつて、強磁性の材料から成る弁ケーシング（
１）と、電磁コイル （３）によつて取り囲まれているコアと、該コアと協働
するプランジヤ（２３）とを有しており、該プランジヤ
（２３）がニードル弁（１９）と固定的に結合されてお
り、前記電磁コイルが励磁状態にある場合には、ニード
ル弁（１９）の、前記コアに向いた側のストツパシヨル
ダ（４９）が、前記弁ケーシング（１）と前記ニードル
弁（１９）との間に案内されていてノズル体（１０）に
固定されたストッパプレート（１３）に当接し、かつ前
記電磁コイル（３）が非励磁状態にある場合には、前記
ニードル弁のシール部分（４１）が、弁座面（４０）に
当接するようになつている形式のものにおいて、前記ス
トツパプレート（１３）と前記ノズル体（１０）との間
に、少なくとも１つの嵌合円板（１４）が設けられてい
ることを特徴とする電磁操作される燃料噴射弁。[Scope of Claim] An electromagnetically operated fuel injection valve for a fuel injection device of an internal combustion engine, comprising a valve casing made of a ferromagnetic material (
1), a core surrounded by an electromagnetic coil (3), and a plunger (23) cooperating with the core, the plunger (23) being fixedly connected to the needle valve (19). and when the electromagnetic coil is energized, the stop shoulder (49) of the needle valve (19) on the side facing the core is connected to the valve casing (1) and the needle valve (19). ) is guided between the needle valve and the stopper plate (13) fixed to the nozzle body (10), and when the electromagnetic coil (3) is in a de-energized state, the sealing portion of the needle valve (41) is adapted to abut against the valve seat surface (40), and at least one fitting disc is disposed between the stopper plate (13) and the nozzle body (10). (14) An electromagnetically operated fuel injection valve, characterized in that it is provided with (14).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853540660 DE3540660A1 (en) | 1985-11-16 | 1985-11-16 | Solenoid-operatable fuel injection valve |
| DE3540660.7 | 1985-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62118054A true JPS62118054A (en) | 1987-05-29 |
Family
ID=6286137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61270027A Pending JPS62118054A (en) | 1985-11-16 | 1986-11-14 | Solenoid operated fuel injection valve |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS62118054A (en) |
| DE (1) | DE3540660A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8801817U1 (en) * | 1988-02-12 | 1989-06-15 | Robert Bosch Gmbh, 7000 Stuttgart, De | |
| DE3810827A1 (en) * | 1988-03-30 | 1989-10-12 | Pierburg Gmbh | ELECTROMAGNETIC INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES |
| DE3927390A1 (en) * | 1989-08-19 | 1991-02-21 | Bosch Gmbh Robert | FUEL INJECTION VALVE |
| JPH0874699A (en) * | 1994-09-09 | 1996-03-19 | Zexel Corp | Fuel injection valve |
| DE19925984A1 (en) | 1999-06-08 | 2000-12-14 | Bosch Gmbh Robert | Fuel injector and process for its manufacture |
| DE19958705C2 (en) * | 1999-12-06 | 2003-03-13 | Siemens Ag | Valve with improved stop geometry |
| DE10034444A1 (en) | 2000-07-15 | 2002-01-24 | Bosch Gmbh Robert | Fuel injector |
| DE10034446A1 (en) | 2000-07-15 | 2002-01-24 | Bosch Gmbh Robert | Fuel injector |
| EP1417406B1 (en) | 2001-08-17 | 2008-10-15 | Continental Automotive GmbH | Actuator acting as a drive unit for an injector and method for the production of said injector |
| US6971172B2 (en) * | 2003-08-08 | 2005-12-06 | Cummins Inc. | Piezoelectric control valve adjustment method |
| US7895751B2 (en) | 2008-01-15 | 2011-03-01 | Delphi Technologies, Inc. | Variable shim for setting stroke on fuel injectors |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5681255A (en) * | 1979-12-07 | 1981-07-03 | Japan Electronic Control Syst Co Ltd | Valve opening regulator for fuel injection valve device |
| JPS6028266B2 (en) * | 1980-04-15 | 1985-07-03 | 成和化成株式会社 | How to preserve food |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1156602B (en) * | 1959-06-26 | 1963-10-31 | Bosch Gmbh Robert | Injector |
| DE2034078A1 (en) * | 1970-07-09 | 1972-01-13 | Bosch Gmbh Robert | Electromagnetic injection valve for timing and stroke measurement |
-
1985
- 1985-11-16 DE DE19853540660 patent/DE3540660A1/en active Granted
-
1986
- 1986-11-14 JP JP61270027A patent/JPS62118054A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5681255A (en) * | 1979-12-07 | 1981-07-03 | Japan Electronic Control Syst Co Ltd | Valve opening regulator for fuel injection valve device |
| JPS6028266B2 (en) * | 1980-04-15 | 1985-07-03 | 成和化成株式会社 | How to preserve food |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3540660A1 (en) | 1987-05-21 |
| DE3540660C2 (en) | 1992-05-14 |
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