JP2613783B2 - High pressure fuel injector for engine - Google Patents
High pressure fuel injector for engineInfo
- Publication number
- JP2613783B2 JP2613783B2 JP5095888A JP5095888A JP2613783B2 JP 2613783 B2 JP2613783 B2 JP 2613783B2 JP 5095888 A JP5095888 A JP 5095888A JP 5095888 A JP5095888 A JP 5095888A JP 2613783 B2 JP2613783 B2 JP 2613783B2
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- port
- pressure
- chamber
- valve body
- 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.)
- Expired - Fee Related
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- Fuel-Injection Apparatus (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は例えば高速ディーゼルエンジンに用いられる
エンジンの高圧燃料噴射装置に関するものである。Description: TECHNICAL FIELD The present invention relates to a high-pressure fuel injection device for an engine used for, for example, a high-speed diesel engine.
〔従来の技術〕 近年、ディーゼルエンジンにおいては、一層の低燃料
消費化や排気の清浄化などの要請から、燃料噴射を電気
的に制御する技術が広く注目されるされるようになって
きた。この種の技術が採用された燃料噴射装置としては
例えば特開昭62−282164号公報（発明の名称：インジェ
クタ）に開示されたものがある。これは、燃料噴射口を
開閉する噴射弁体の前後に燃料圧を作用させるいわゆる
バランス形のものであり、ケース側部に側方へ向けて開
口された燃料供給口からケース内に導入される燃料の圧
力によって燃料噴射口を閉じる一方、燃料噴射時は電磁
石で作動される弁体で噴射弁体の背面の圧力を逃がす弁
口を開いて噴射弁体を後退させることによって、燃料を
噴射するように構成されている。[Related Art] In recent years, in diesel engines, due to demands for further lowering fuel consumption and purifying exhaust gas, a technique for electrically controlling fuel injection has attracted widespread attention. An example of a fuel injection device employing this type of technology is disclosed in Japanese Patent Application Laid-Open No. 62-282164 (Title of Invention: Injector). This is a so-called balance type in which a fuel pressure is applied before and after an injection valve body that opens and closes a fuel injection port, and is introduced into a case from a fuel supply port opened to the side of the case. While the fuel injection port is closed by the pressure of the fuel, the fuel is injected by opening the valve port for releasing the pressure on the back surface of the injection valve body with the valve body operated by the electromagnet to retreat the injection valve body during fuel injection. It is configured as follows.
しかしながら、このような構造では、燃料噴射装置を
ねじ作用によってエンジン本体に取付ける場合、これら
部材に製造上の誤差があるために、シムの厚さを微調整
することによって燃料供給口の向きを一定にしなければ
ならない。このため、取付作業がきわめて煩雑になると
いう不具合があった。本発明はこのような事情に鑑みな
されたもので、エンジン本体への取付作業を容易にする
ことができるエンジンの高圧燃料噴射装置を提供するも
のである。However, in such a structure, when the fuel injection device is attached to the engine body by a screw action, since there are manufacturing errors in these members, the direction of the fuel supply port is fixed by finely adjusting the thickness of the shim. Must be. For this reason, there has been a problem that the mounting operation becomes extremely complicated. SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and provides a high-pressure fuel injection device for an engine that can easily be attached to an engine body.
本発明に係る高圧燃料噴射装置は、加圧された燃料が
導入される蓄圧室および小室を有するボディーの後端部
に、蓄圧室および小室に連通された燃料供給口と、小室
の圧力を逃がす弁口に連通された燃料戻し口とを配設
し、これら両口を後方へ開口させたものである。A high-pressure fuel injection device according to the present invention releases a pressure in a small chamber to a fuel supply port communicated with the pressure accumulation chamber and the small chamber at a rear end of a body having a pressure accumulation chamber and a small chamber into which pressurized fuel is introduced. A fuel return port connected to the valve port is provided, and both ports are opened rearward.
本発明においては、燃料供給口および燃料戻し口は燃
料噴射装置などの製造誤差に影響されずに常に後方へ向
けられる。In the present invention, the fuel supply port and the fuel return port are always directed rearward without being affected by manufacturing errors of the fuel injection device and the like.
以下、本発明の一実施例を図により詳細に説明する。
第１図は本発明に係るエンジンの高圧燃料噴射装置を示
す縦断面図、第２図は同じく平面図で、これらの図にお
いて全体を符号１で示す燃料噴射装置は全体として略円
柱状に形成されている。この燃料噴射装置１の前端には
燃料噴射口２が開口され、後端には燃料供給口３が軸線
方向に沿って後方へ開口されている。この燃料供給口３
には燃料ポンプ４により、高圧（例えば約500kg/cm2）
に加圧された燃料が燃料タンク５から圧送される。Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a longitudinal sectional view showing a high-pressure fuel injection device for an engine according to the present invention, and FIG. 2 is a plan view of the same. In these drawings, a fuel injection device generally denoted by reference numeral 1 is generally formed in a substantially cylindrical shape. Have been. A fuel injection port 2 is opened at a front end of the fuel injection device 1, and a fuel supply port 3 is opened rearward along an axial direction at a rear end. This fuel supply port 3
High pressure (for example, about 500 kg / cm 2 ) by the fuel pump 4
Is pressurized from the fuel tank 5.
６はボディーで、前部が小径で後部が大径な略円筒状
を呈し内部に蓄圧室７を有する中空の前箱８と、この前
箱８の後部開口に設けた雌ねじに螺合し前箱８の後方お
よび電磁石９の外側を覆う後箱10とからなり、前箱８の
外周面に設けられた雄ねじ11で図示しないエンジン本体
に取付けられる。前箱８と後箱10との間にはボディー６
内を前後に画成する円板状の内蓋部材12が挟持されてい
る。この内蓋部材12の中央部には前記燃料噴射口２を開
閉する噴射弁体13の後部を保持する軸孔14が設けられて
いる。噴射弁体13の後部は前部に比較して大径に形成さ
れている。一方、噴射弁体13の前部は、前端部13aが前
箱８の前端に螺着されたノズルチップ15に挿入されるこ
とによって保持されている。ノズルチップ15と前箱８と
の間には噴射弁体13のリフト量などを調整するシム16が
介装されている。17は軸孔14の底部と噴射弁体13の後端
面とによって形成されたきわめて小さな容積を有する小
室である。すなわち、噴射弁体13はボディー６内に収容
され、前部が蓄圧室７内に臨み、後部が小室17内に臨む
ように軸線方向に進退自在に保持されている。そして、
略中央部に鍔部13bが突設されており、この鍔部13bで係
止されるばね受け18と内蓋部材12の前面との間には、噴
射弁体13を常時燃料噴射口２を閉じる方向に付勢する圧
縮コイルばね19が弾装されている。Reference numeral 6 denotes a body, a hollow front box 8 having a substantially cylindrical shape having a small diameter at a front portion and a large diameter at a rear portion and having a pressure accumulating chamber 7 therein, and a female screw provided at a rear opening of the front box 8 and screwed into the body. The rear box 10 covers the rear of the box 8 and the outside of the electromagnet 9, and is attached to an engine body (not shown) by a male screw 11 provided on the outer peripheral surface of the front box 8. Body 6 between front box 8 and rear box 10
A disk-shaped inner lid member 12 that defines the inside of the inside forward and backward is sandwiched. A shaft hole 14 for holding a rear portion of the injection valve body 13 for opening and closing the fuel injection port 2 is provided at a central portion of the inner lid member 12. The rear part of the injection valve body 13 has a larger diameter than the front part. On the other hand, the front portion of the injection valve body 13 is held by inserting the front end portion 13a into the nozzle tip 15 screwed to the front end of the front box 8. A shim 16 for adjusting the lift amount of the injection valve body 13 and the like is interposed between the nozzle tip 15 and the front box 8. Reference numeral 17 denotes a small chamber having a very small volume formed by the bottom of the shaft hole 14 and the rear end face of the injection valve body 13. That is, the injection valve body 13 is housed in the body 6, and is held movably in the axial direction such that the front part faces the pressure accumulating chamber 7 and the rear part faces the small chamber 17. And
A flange 13b is protrudingly provided substantially at the center, and the fuel injector 2 is always connected to the injection valve body 13 between the spring receiver 18 locked by the flange 13b and the front surface of the inner lid member 12. A compression coil spring 19 biasing in the closing direction is mounted.
前記燃料供給口３は前箱８の中心からずれた外周部付
近に配置されている。21は燃料供給口３内に開口され後
箱10の周壁を軸線方向に貫通する縦燃料通路、22は内蓋
部材12の軸孔14と外周面との間を半径方向に貫通する横
燃料通路である。これら燃料通路21,22は連絡通路23で
互いに連通されている。横燃料通路22は連通孔24を介し
て噴射弁体13の後部に設けられた中央室25に連通されて
いる。この中央室25は噴射弁体13の軸線上に配置され、
噴射弁体13の後端部に圧入固定された黄銅製の第１オリ
フィス部材26のオリフィスを介して小室17に連通されて
いる。27は内蓋部材12の前面に螺着された黄銅製の第２
オリフィス部材であり、オリフィスを介して横燃料通路
22と蓄圧室７とを連通している。このため、燃料供給口
３に供給された加圧された燃料は、これら燃料通路およ
びオリフィスを介して蓄圧室７および小室17に導入され
る。28は小室17と後箱10内とを連通し小室17内の圧力を
後箱10内へ逃がす弁口であり、内蓋部材12の軸線上に配
置されている。そして、後箱10内は燃料戻し口29で外部
と連通されている。この燃料戻し口29は後箱10の後端部
に圧入固定された管体で軸線方向に沿って後方へ開口す
るように形成され、燃料タンク５に接続されている。The fuel supply port 3 is disposed near an outer peripheral portion of the front box 8 shifted from the center. Reference numeral 21 denotes a vertical fuel passage which is opened in the fuel supply port 3 and penetrates the peripheral wall of the rear box 10 in the axial direction. Reference numeral 22 denotes a horizontal fuel passage which penetrates radially between the shaft hole 14 of the inner lid member 12 and the outer peripheral surface. It is. These fuel passages 21 and 22 communicate with each other through a communication passage 23. The horizontal fuel passage 22 communicates with a central chamber 25 provided at the rear of the injection valve body 13 through a communication hole 24. This central chamber 25 is arranged on the axis of the injection valve body 13,
It communicates with the small chamber 17 via an orifice of a first brass orifice member 26 press-fitted and fixed to the rear end of the injection valve body 13. Reference numeral 27 denotes a brass second screw screwed to the front surface of the inner lid member 12.
An orifice member through which the lateral fuel passage
22 communicates with the accumulator chamber 7. Therefore, the pressurized fuel supplied to the fuel supply port 3 is introduced into the pressure accumulating chamber 7 and the small chamber 17 through the fuel passage and the orifice. Reference numeral 28 denotes a valve port for communicating the small chamber 17 with the inside of the rear box 10 and releasing the pressure in the small chamber 17 into the rear box 10, and is disposed on the axis of the inner lid member 12. The inside of the rear box 10 is communicated with the outside through a fuel return port 29. The fuel return port 29 is formed by a pipe fixed to the rear end of the rear box 10 so as to open rearward along the axial direction, and is connected to the fuel tank 5.
前記電磁石９は中央に軸孔を有するコア31と、このコ
ア31に巻回された電磁コイル32と、この電磁コイル32お
よびコア31にそれらの外側を被覆するように嵌装された
円筒状のヨーク33とからなり、全体が円柱状に形成され
ている。The electromagnet 9 has a core 31 having a shaft hole in the center, an electromagnetic coil 32 wound around the core 31, and a cylindrical shape fitted to the electromagnetic coil 32 and the core 31 so as to cover the outside thereof. It is composed of a yoke 33, and is entirely formed in a columnar shape.
35は電磁石９と弁口28との間に介装され弁口28を開閉
する弁体である。弁体35は第３図に示すように、弁棒が
電磁石９側へ延設されコア31の軸孔に挿入されて進退自
在に保持されている。また弁体35の外周部にはコアおよ
びヨーク31,33が対向して円板状のアーマチュア36がか
しめ固定されている。すなわち、アーマチュア36は弁体
35をその前端部に突出した状態に嵌入させる凹陥部37を
有しており、この凹陥部37の開口縁部を内径方向へ塑性
変形させることによって弁体35に固定される。Reference numeral 35 denotes a valve body interposed between the electromagnet 9 and the valve port 28 for opening and closing the valve port 28. As shown in FIG. 3, the valve body 35 has a valve rod extending toward the electromagnet 9, inserted into a shaft hole of the core 31, and held so as to be able to move forward and backward. A disc-shaped armature 36 is caulked and fixed to the outer peripheral portion of the valve body 35 with the core and the yokes 31, 33 facing each other. In other words, armature 36 is a valve
It has a concave portion 37 into which the front end of the concave portion 35 is fitted, and is fixed to the valve body 35 by plastically deforming the opening edge of the concave portion 37 in the inner diameter direction.
前記ヨーク33は電磁コイル32の外側を覆う小径なコイ
ル被覆部分33aと、内蓋部材12に螺合する大径な固定部
分33bとが一体に形成され、この固定部分33bの前端面は
シム41を介して内蓋部材12に当接されている。そして、
コイル被覆部分33aと固定部分33bとの中間の部分は、前
方へ向かって小径になるように内側へ突設されており、
ここにアーマチュア吸着部分33cが形成されている。42
はヨーク33のアーマチュア36付近外周面に設けられた外
環状溝、43は同じくその付近の内周面に設けられた内環
状溝である。詳述すれば、これら環状溝はアーマチュア
吸着部分33cからコイル被覆部分33aに至る部分とその外
側の部分である固定部分33bとの間に設けられている。
さらに詳述すれば、外環状溝42はコイル被覆部分33aと
固定部分33bとの間に介在し、内環状溝43はアーマチュ
ア吸着部分33cと固定部分33bとの間に介在しており、ヨ
ーク33のアーマチュア吸着部分33cおよびコイル被覆部
分33aから固定部分33bに至る部分の断面積を小さくす
る。なお図示しないがヨーク33などの部材には前記燃料
戻し口29と弁口28との間を連通する連通孔が設けられて
いる。The yoke 33 is formed integrally with a small-diameter coil covering portion 33a that covers the outside of the electromagnetic coil 32 and a large-diameter fixed portion 33b that is screwed to the inner lid member 12, and the front end face of the fixed portion 33b is a shim 41. And is in contact with the inner lid member 12 through the opening. And
An intermediate portion between the coil covering portion 33a and the fixed portion 33b is provided to project inward so as to have a smaller diameter toward the front,
Here, an armature suction portion 33c is formed. 42
Is an outer annular groove provided on the outer peripheral surface near the armature 36 of the yoke 33, and 43 is an inner annular groove similarly provided on the inner peripheral surface in the vicinity thereof. More specifically, these annular grooves are provided between a portion from the armature suction portion 33c to the coil covering portion 33a and a fixed portion 33b outside the portion.
More specifically, the outer annular groove 42 is interposed between the coil covering portion 33a and the fixed portion 33b, the inner annular groove 43 is interposed between the armature suction portion 33c and the fixed portion 33b, and the yoke 33 The cross-sectional area of the part from the armature suction part 33c and the coil covering part 33a to the fixed part 33b is reduced. Although not shown, a member such as the yoke 33 is provided with a communication hole communicating between the fuel return port 29 and the valve port 28.
45は弁体35を常時弁口28方向へ押圧しそれ自体軸線方
向に圧縮変形する圧縮コイルばねである。このばね45は
コア31の反アーマチュア側であって軸線上に設けられた
凹陥部46内に装填されている。47は弁体35の後端部に設
けられたばね受け、48は凹陥部46の開口縁に後方から螺
着され螺入量によってばね45の弾溌力を調整する調整用
ねじである。Reference numeral 45 denotes a compression coil spring which constantly presses the valve body 35 toward the valve port 28 and compresses and deforms itself in the axial direction. The spring 45 is mounted in a concave portion 46 provided on the axis line on the side opposite to the armature of the core 31. Reference numeral 47 denotes a spring receiver provided at the rear end of the valve body 35, and reference numeral 48 denotes an adjusting screw which is screwed to the opening edge of the concave portion 46 from behind and adjusts the resilience of the spring 45 according to the amount of screwing.
51は電磁石９の電磁コイル32を外部電源に接続するた
めの外部接続用端子部材である。この端子部材51はねじ
軸状に形成され後箱10の後壁を貫通した状態に鍔部51a
およびナット52で固定されており、軸線方向に重ねられ
たナット52,52間に端子53が挾持されている。54は端子
部材51と後箱10との間をシールするシール材である。Reference numeral 51 denotes an external connection terminal member for connecting the electromagnetic coil 32 of the electromagnet 9 to an external power supply. The terminal member 51 is formed in a screw shaft shape and has a flange portion 51a in a state of penetrating the rear wall of the rear box 10.
And a nut 52, and a terminal 53 is sandwiched between the nuts 52, 52 stacked in the axial direction. Reference numeral 54 denotes a sealing material for sealing between the terminal member 51 and the rear box 10.
このように構成されたエンジンの高圧燃料噴射装置に
おいては、燃料は燃料供給口３から蓄圧室７および小室
17内に導入され、燃料噴射口２から噴射されると共に、
燃料戻し口29から戻される。すならち、電磁石９に電圧
が印加されてないときは、蓄圧室７および小室17内の圧
力が釣り合っているので燃料噴射口３は閉じられた状態
に保たれる。一方、電磁コイル９に電圧が印加される
と、コイル32の周囲にアーマチュア36に迂回する磁束が
発生するため、弁体35が弁口28から後退し、小室17内が
急激に減圧される。その結果、噴射弁体13は蓄圧室７内
の燃料の圧力によって後退し、燃料噴射口２が開かれて
燃料が噴射される。そして、電磁石９の電圧の印加が解
除されると、容積の小さな小室17の圧力が瞬間的に上昇
して噴射弁体13を押圧するため、燃料噴射口２は閉じら
れる。In the high-pressure fuel injection device for an engine configured as described above, fuel is supplied from the fuel supply port 3 to the accumulator 7 and the small chamber.
17 and is injected from the fuel injection port 2,
It is returned from the fuel return port 29. That is, when no voltage is applied to the electromagnet 9, the pressures in the accumulator chamber 7 and the small chamber 17 are balanced, so that the fuel injection port 3 is kept closed. On the other hand, when a voltage is applied to the electromagnetic coil 9, a magnetic flux that bypasses the armature 36 is generated around the coil 32, so that the valve body 35 retreats from the valve port 28, and the pressure in the small chamber 17 is rapidly reduced. As a result, the injection valve body 13 retreats due to the pressure of the fuel in the accumulator 7, the fuel injection port 2 is opened, and the fuel is injected. Then, when the application of the voltage of the electromagnet 9 is released, the pressure of the small chamber 17 having a small volume instantaneously rises and presses the injection valve body 13, so that the fuel injection port 2 is closed.
また、ボディー６の後箱10の後端部に後方へ開口され
た燃料供給口３および供給戻し口29を設けているので、
燃料噴射装置１をエンジン本体に取付ける際、燃料噴射
装置１やエンジン本体、あるいはこれらの間に介装され
る座金などの製造誤差に影響されることなく、燃料供給
口３および燃料戻し口29を常に後方へ向けることができ
る。したがって、燃料供給口３および燃料戻し口29の方
向を合わせる作業をなくすることができる。Further, since the fuel supply port 3 and the supply return port 29 which are opened rearward are provided at the rear end of the rear box 10 of the body 6,
When the fuel injection device 1 is attached to the engine body, the fuel supply port 3 and the fuel return port 29 are connected without being affected by manufacturing errors of the fuel injection device 1, the engine body, or washers interposed therebetween. You can always turn backwards. Therefore, the operation of adjusting the directions of the fuel supply port 3 and the fuel return port 29 can be eliminated.
以上説明したように本発明によれば、加圧された燃料
が導入される蓄圧室および小室を有するボディーの後端
部に、蓄圧室および小室に連通された燃料供給口と、小
室の圧力を逃がす弁口に連通された燃料戻し口とを配設
し、これら両口を後方へ開口させたから、燃料供給口お
よび燃料戻し口を燃料噴射装置などの製造誤差に影響さ
れることなく常に後方へ向けることができる。As described above, according to the present invention, the fuel supply port communicated with the pressure accumulation chamber and the small chamber is provided at the rear end of the body having the pressure accumulation chamber and the small chamber into which the pressurized fuel is introduced. A fuel return port connected to the relief valve port is arranged, and both ports are opened rearward, so that the fuel supply port and the fuel return port are always located rearward without being affected by manufacturing errors of the fuel injection device and the like. Can turn.
したがって、燃料供給口および燃料戻し口の方向を合
わせる作業を必要としないので、燃料噴射装置の取付け
を容易にすることができる。Therefore, since it is not necessary to adjust the directions of the fuel supply port and the fuel return port, it is possible to easily attach the fuel injection device.
第１図は本発明に係るエンジンの高圧燃料噴射装置を示
す縦断面図、第２図は同じく平面図、第３図は弁体を示
す断面図である。 ３……燃料供給口、６……ボディー、７……蓄圧室、９
……電磁石、10……後箱、17……小室、28……弁口、29
……燃料戻し口、35……弁体。1 is a longitudinal sectional view showing a high-pressure fuel injection device for an engine according to the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a sectional view showing a valve body. 3 ... fuel supply port, 6 ... body, 7 ... pressure accumulator, 9
...... electromagnet, 10 ... rear box, 17 ... small chamber, 28 ... valve port, 29
.... Fuel return port, 35 ... Valve body.
Claims (1)
小室を有するボディーと、このボディー内に前部が蓄圧
室内に臨み後部が小室内に臨むように保持され燃料噴射
口を開閉する噴射弁体と、前記小室の圧力を逃がす弁口
を開閉し電磁石で作動される弁体とを備えた高圧燃料噴
射装置において、前記ボディーの後端部に蓄圧室および
小室に連通された燃料供給口と、弁口に連通された燃料
戻し口とを配設し、これら両口を後方へ開口させてなる
エンジンの高圧燃料噴射装置。1. A body having a pressure accumulating chamber and a small chamber into which pressurized fuel is introduced, and a front portion of the body is held in the pressure accumulating chamber, and a rear portion of the body is held in the small chamber to open and close a fuel injection port. In a high-pressure fuel injection device including an injection valve body and a valve body that opens and closes a valve opening for releasing pressure of the small chamber and is operated by an electromagnet, a fuel supply communicated with a pressure accumulation chamber and a small chamber at a rear end of the body. A high-pressure fuel injection device for an engine, comprising a port and a fuel return port connected to a valve port, and both ports are opened rearward.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5095888A JP2613783B2 (en) | 1988-03-04 | 1988-03-04 | High pressure fuel injector for engine |
| US07/318,674 US4993636A (en) | 1988-03-04 | 1989-03-03 | High pressure fuel injection device for engine |
| DE68922871T DE68922871T2 (en) | 1988-03-04 | 1989-03-03 | Fuel injector. |
| EP89103793A EP0331200B1 (en) | 1988-03-04 | 1989-03-03 | Fuel injection nozzle |
| US07/573,844 US5072882A (en) | 1988-03-04 | 1990-08-28 | High pressure fuel injection device for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5095888A JP2613783B2 (en) | 1988-03-04 | 1988-03-04 | High pressure fuel injector for engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01224457A JPH01224457A (en) | 1989-09-07 |
| JP2613783B2 true JP2613783B2 (en) | 1997-05-28 |
Family
ID=12873327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5095888A Expired - Fee Related JP2613783B2 (en) | 1988-03-04 | 1988-03-04 | High pressure fuel injector for engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2613783B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3687758B2 (en) * | 1995-11-14 | 2005-08-24 | 株式会社デンソー | Fuel injection device |
| JP5540475B2 (en) * | 2008-06-24 | 2014-07-02 | いすゞ自動車株式会社 | Fuel injection valve using high pressure injection parts |
| JP2011122462A (en) * | 2009-12-08 | 2011-06-23 | Denso Corp | Fuel injection valve |
-
1988
- 1988-03-04 JP JP5095888A patent/JP2613783B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01224457A (en) | 1989-09-07 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |