JPH03286178A - Fuel injection method and fuel injection valve - Google Patents
Fuel injection method and fuel injection valveInfo
- Publication number
- JPH03286178A JPH03286178A JP8687490A JP8687490A JPH03286178A JP H03286178 A JPH03286178 A JP H03286178A JP 8687490 A JP8687490 A JP 8687490A JP 8687490 A JP8687490 A JP 8687490A JP H03286178 A JPH03286178 A JP H03286178A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- fuel injection
- valve
- injection port
- injected
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1853—Orifice plates
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/04—Injectors peculiar thereto
- F02M69/041—Injectors peculiar thereto having vibrating means for atomizing the fuel, e.g. with sonic or ultrasonic vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
（産業上の利用分野）
本発明は、燃焼機関に燃料を噴射して燃焼を行うに際し
、前記噴射燃料の微細化を行なって燃焼効率を高めるの
に利用される燃料噴射方法および燃料噴射弁に関するも
のである。
（従来の技術）
燃焼機関に燃料を噴射して燃焼を行うに際し、前記燃料
を微細化する従来の燃料噴射方法としては、第４図に示
す燃料噴射弁を用いるもの（特開昭６４−５６９６２号
公報）があった。
第４図に示す燃料噴射弁５１は、おねじ部５２ａ、ｙラ
ンジ部５２ｂ、燃料通路５２ｃ、振動拡大Ｍ５２ｄを有
するホーン５２の前記おねじ部５２ａに２つの円盤形圧
電素子５３ａ、５３ｂおよび電極板５４ａ 、５４ｂを
絶縁バイブ５５を介して挿通し、このおねじ部５２ａに
ワッシャ５６を介してナツト５７をねじ込むことにより
前記フランジ部５２ｂとの間で圧電素子５３ａ。
５３ｂを固定し、前記ホーン５２の振動拡大部５２ｄに
は燃料出口５８を有する弁座５２を固定すると共に、こ
の燃料出口５８を開閉する弁部６１ａをそなえた弁体６
１を設け、前記弁体６１の大径部６１ｂに設けたばね受
部６２と前記弁座５９との間にばね６３を設けて前記弁
部６１ａが前記燃料出口５８を閉塞する方向に付勢する
ようにした構造をなすものである。
このような構造を有する燃料噴射弁５１において、電極
板５４ａ、５４ｂを介して圧電素子５３ａ、５３ｂに高
周波電圧を印加することにより前記圧電素子５３ａ、５
３ｂを伸縮させ、これにより燃料噴射弁５１の全体を振
動させることによってばね６３に所定の励振力が働くよ
うになすことにより弁部６１ａが燃料出口５８から離れ
て弁を開き、燃料が振動拡大部５２ｄに流出してここで
振動エネルギーを得ることによって燃料が微粒化されて
噴射されるようにしたものである。
（発明が解決しようとする課題）
しかしながら、このような従来の燃料噴射方法に使用さ
れる燃料噴射弁５１にあっては、圧電素子５３ａ、５３
ｂの振動で燃料噴射弁５１の全体を振動させるようにし
ており、しかも振動規模の比較的大きい縦振動による励
振を利用するものとなっていたため、燃料流量が多い領
域では燃料の微細化が困難であるという問題があった。
また、燃料噴射弁５１の全体を励振させるために過大な
パワーを必要とし、小型化できにくいという問題があっ
た。さらに、燃料噴射弁５１を固定する場合には振動の
節を固定しなければ不必要な部品（例えば、燃料供給配
管）までをも振動させてしまうので、取り付けが難しい
という問題があり、これらの問題を解決することが課題
となっていた。
（発明の目的）
本発明はこのような従来の課題にかんがみてなされたも
ので、燃料流量の少ない領域から多い領域まで燃料を少
ないパワーで効率よ〈微細化することが可能であると共
に、微細化機構を簡素なものとすることが可能である燃
料噴射方法および燃料噴射弁を提供することを目的とし
ている。(Industrial Application Field) The present invention relates to a fuel injection method and a fuel injection valve that are used to improve combustion efficiency by atomizing the injected fuel when injecting fuel into a combustion engine for combustion. It is something. (Prior Art) When fuel is injected into a combustion engine for combustion, a conventional fuel injection method for atomizing the fuel is a method using a fuel injection valve as shown in FIG. Publication No.). The fuel injection valve 51 shown in FIG. 4 includes two disk-shaped piezoelectric elements 53a, 53b and an electrode on the male threaded portion 52a of the horn 52, which has a male threaded portion 52a, a Y flange portion 52b, a fuel passage 52c, and a vibration magnification M52d. The piezoelectric element 53a is inserted between the plates 54a and 54b through the insulating vibrator 55, and the nut 57 is screwed into the male threaded portion 52a via the washer 56 to connect the piezoelectric element 53a to the flange portion 52b. 53b is fixed, a valve seat 52 having a fuel outlet 58 is fixed to the vibration amplifying portion 52d of the horn 52, and a valve body 6 is provided with a valve portion 61a for opening and closing the fuel outlet 58.
1, and a spring 63 is provided between the spring receiving portion 62 provided on the large diameter portion 61b of the valve body 61 and the valve seat 59 to urge the valve portion 61a in a direction to close the fuel outlet 58. It has a structure like this. In the fuel injection valve 51 having such a structure, by applying a high frequency voltage to the piezoelectric elements 53a, 53b via the electrode plates 54a, 54b, the piezoelectric elements 53a, 5
3b is expanded and contracted, thereby causing the entire fuel injection valve 51 to vibrate, thereby applying a predetermined excitation force to the spring 63, thereby causing the valve portion 61a to move away from the fuel outlet 58 and open the valve, causing the fuel to vibrate and expand. The fuel is atomized and injected by flowing out into the part 52d and obtaining vibrational energy there. (Problem to be Solved by the Invention) However, in the fuel injection valve 51 used in such a conventional fuel injection method, the piezoelectric elements 53a, 53
The vibration of b causes the entire fuel injection valve 51 to vibrate, and since the excitation is caused by longitudinal vibration, which has a relatively large vibration scale, it is difficult to refine the fuel in areas where the fuel flow rate is large. There was a problem that. Further, there is a problem in that excessive power is required to excite the entire fuel injection valve 51, making it difficult to downsize the fuel injection valve 51. Furthermore, when fixing the fuel injector 51, there is a problem in that it is difficult to install because if the nodes of vibration are not fixed, unnecessary parts (for example, fuel supply piping) will also vibrate. The challenge was to solve the problem. (Purpose of the Invention) The present invention has been made in view of such conventional problems. It is an object of the present invention to provide a fuel injection method and a fuel injection valve that can simplify the fuel injection mechanism.
（課題を解決するための手段）
本発明に係わる燃料噴射方法は、燃焼機関に燃料を噴射
して燃焼を行なう燃料噴射方法において、燃料噴射口か
ら噴出して柱状燃料となった燃料柱に膜振動を印加して
前記燃料柱に疎密を生じさせることにより前記燃料を微
粒化する構成としたことを特徴としており、本発明に係
わる燃料噴射弁は、燃料噴射口をそなえた燃料噴射弁に
おいて、前記燃料噴射口の近傍に、前記燃料噴射口から
噴出した燃料を柱状燃料として燃料柱に膜振動を印加し
て前記燃料を微粒化する振動子を設けた構成としたこと
を特徴としており、かかる燃料噴射方法および燃料噴射
弁の構成を前述した従来の課題を解決するための手段と
している。
（発明の作用）
本発明に係わる燃料噴射方法および燃料噴射弁は上記し
た構成を有しているので、燃料噴射口から噴出して柱状
燃料となった燃料柱に膜振動が印加されることにより前
記燃料柱にＨ！密が生じるようになり、これによって燃
料流量の少ない領域から多い領域まで前記燃料が効率よ
く微粒化されるようになる。
（実施例）
次に、本発明の実施例を図面に基づいて説明する。
第１図は、本発明の一実施例を示す図であり燃料噴射弁
の燃料噴射口の部分を拡大して示すものである。
第１図に示す燃料噴射弁１において、ハウジング２の下
部には燃料噴射口３が設けであると共にこの燃料噴射口
３のまわりに弁座４が形成してあり、さらにこのハウジ
ング２の下端部には振動子取付はフランジ５が設けであ
ると共に内部にはリード線挿通孔６ａ 、６ｂが設けで
ある。
また、前記弁座４に対しては、弁体７の弁部７ａが離間
当接することによって前記燃＃４ｒｑ１射口３が開閉さ
れるようになっており、この弁体７は図示しない電磁ン
レノイド圧電素子等の弁体駆動手段によって軸方向に駆
動されるようになっている。また、前記弁体７とハウジ
ング２との間には燃料溜８が形成されており、燃料流量
は弁体７の弁部７ａによる燃料噴射口３の開口時間によ
って決められるものとなっている。
さらに、前記燃料噴射口３の近傍には、微小空間１１を
介して振動子１２が設けである。この振動子１２は、前
記ハウジング２の下端部に設けた振動子取付はフランジ
５に振動子取付は部材１３と上下の振動子保持部材１４
ａ、１４ｂとによって振動可能に保持されており、この
振動子１２の下方で燃料微粒化口１５が形成されるよう
になっている。
ここで用いた振動子１２は、第２図（ａ）（ｂ）にも示
すように、直径２ ｍ ｍ 、厚さ０．５ｍｍの膜状を
なしかつ直径５０ｐｍの直線状細孔１２＆を多数設けた
ジルコン酸チタン酸鉛（ＰＺＴ）やチタン酸バリウム（
ＢａＴｉ０３）などからなる圧電体１２ｂの両面に電極
１２Ｃ２１２（ｉを設けた膜状振動子の構造をなすもの
であって、一方の電極１２Ｃは電極リード部１２ｅおよ
び前記リード線挿通孔６ａに挿通したリード線１６ａを
介して外部電源に接続されると共に、他方の電極１２ｃ
ｌは電極リード部１２ｆおよび前記リード線挿通孔６ｂ
に挿通したリード線１６ｂを介して上記外部電源に接続
されるものとなっている。
このような第１図および第２図に示した構造を右する燃
料噴射弁１を用いて燃料噴射を行うに際し、約２．５Ｋ
ｇｆ／ｃｍ２程度に加圧された燃料が燃料噴射弁１に供
給されているとき、図示しない電磁ソレノイドや圧電素
子などの弁体駆動手段によって弁体７が駆動されてその
弁部７ａが弁座４から離れて燃料噴射口３が開口すると
、燃料は数十ｍ／ｓｅｃの速さで前記燃料噴射口３から
噴射される。
このとき、この燃料噴射と同時に、膜状の振動子１２に
リード線１６ａ、１６ｂを介して約２００ＫＨ２，数十
Ｖ程度の高周波電圧を印加すると、前記膜状の振動子１
２には例えば第１図の仮想線で示すような円板がたわむ
膜振動が励起され、前記燃料噴射口３から噴射された燃
料は振動子１２の細孔１２ａで柱状燃料となるとともに
、この燃料柱には前記振動子１２の膜振動によって縦振
動が励起される。従って、この燃料柱に疎密が生じて微
粒化され、約５０ｇｍ以下の微粒となって燃料微粒化口
１５から燃料が噴出することとなる。
このとき、加圧された燃料が高速で燃料噴射口３を通過
し、また、微小空間１１も振動子１２の振幅程度の大き
さしかないため、燃料噴射の遅れはほとんどないものと
なる。
第３図は振動子１２の他の構造を例示するものであって
、圧電体１２ｂが環状をなし、この圧電体１２ｂの一方
の面には前記圧電体１２ｂと同様に環状をなす電極１２
ｃが設けられると共に、他方の面には多数の細孔１２ａ
を有する電極１２ｄが設けられ、前記電極１２ｃは電極
リード部１２ｅを介してリード線１６ａに接続されると
共に、前記電極１２ｄは電極リード部１２ｆを介してリ
ード線１６ｂに接続される構造としたものであり、この
ようにしたときでも前記燃料噴射口３から噴射された燃
料は振動子１２の細孔１２ａで柱状になるとともに、こ
の燃料柱には前記振動子１２の膜振動によって縦振動が
励起され、このため燃料柱に疎密が生じて微粒化されて
、この微粒化された燃料が燃料微粒化口１５から噴出す
る。
【発明の効果］
本発明に係わる燃料噴射方法では、燃焼機関に燃料を噴
射して燃焼を行なう燃料噴射方法において、燃料噴射口
から噴出して柱状燃料となった燃料柱に膜振動を印加し
て前記燃料柱に疎密を生じさせることにより前記燃料を
微粒化する構成とし、また、本発明に係わる燃料噴射弁
では、燃料噴射口をそなえた燃料噴射弁において、前記
燃料噴射口の近傍に、前記燃料噴射口から噴出した燃料
を柱状燃料として燃料柱に膜振動を印加して前記燃料を
微粒化する振動子を設けた構成としたから、燃料流量の
少ない領域から多い領域まで燃料を少ないパワーで効率
よく微粒化することが可能であると共に、微粒化機構を
簡素なものとすることが可能であって燃料噴射弁の小型
化も可能になり、燃料噴射弁の取り付けも容易であるな
どの効果がもたらされる。(Means for Solving the Problems) A fuel injection method according to the present invention is a fuel injection method in which fuel is injected into a combustion engine to perform combustion. The fuel injection valve according to the present invention is characterized in that the fuel is atomized by applying vibration to cause the fuel column to become denser and denser, and the fuel injection valve according to the present invention is equipped with a fuel injection port, and includes: The present invention is characterized in that a vibrator is provided in the vicinity of the fuel injection port, which uses the fuel injected from the fuel injection port as columnar fuel and applies membrane vibration to the fuel column to atomize the fuel. The fuel injection method and the configuration of the fuel injection valve are used as means for solving the above-mentioned conventional problems. (Operation of the invention) Since the fuel injection method and fuel injection valve according to the present invention have the above-described configuration, membrane vibration is applied to the fuel column that has become a columnar fuel after being injected from the fuel injection port. H to the fuel column! Density is created, and as a result, the fuel is efficiently atomized from a region with a low fuel flow rate to a region with a high fuel flow rate. (Example) Next, an example of the present invention will be described based on the drawings. FIG. 1 is a diagram illustrating an embodiment of the present invention, and shows an enlarged view of a fuel injection port of a fuel injection valve. In the fuel injection valve 1 shown in FIG. 1, a fuel injection port 3 is provided at the lower part of the housing 2, and a valve seat 4 is formed around the fuel injection port 3. A flange 5 is provided for mounting the vibrator, and lead wire insertion holes 6a and 6b are provided inside. Further, the fuel #4rq1 injection port 3 is opened and closed by the valve portion 7a of the valve body 7 coming into contact with the valve seat 4 at a distance. It is adapted to be driven in the axial direction by a valve body driving means such as a piezoelectric element. Further, a fuel reservoir 8 is formed between the valve body 7 and the housing 2, and the fuel flow rate is determined by the opening time of the fuel injection port 3 by the valve portion 7a of the valve body 7. Further, a vibrator 12 is provided near the fuel injection port 3 with a microspace 11 in between. This vibrator 12 has a vibrator attached to a flange 5 provided at the lower end of the housing 2, a vibrator attached to a member 13, and upper and lower vibrator holding members 14.
a and 14b, and a fuel atomization port 15 is formed below the vibrator 12. As shown in FIGS. 2(a) and 2(b), the vibrator 12 used here has a membrane shape with a diameter of 2 mm and a thickness of 0.5 mm, and has many linear pores 12& with a diameter of 50 pm. Lead zirconate titanate (PZT) and barium titanate (
It has the structure of a membrane vibrator in which electrodes 12C212 (i) are provided on both sides of a piezoelectric body 12b made of BaTi03) or the like, and one electrode 12C is inserted into the electrode lead portion 12e and the lead wire insertion hole 6a. It is connected to an external power supply via the lead wire 16a, and the other electrode 12c
l represents the electrode lead portion 12f and the lead wire insertion hole 6b;
It is connected to the external power source via a lead wire 16b inserted through the. When performing fuel injection using the fuel injection valve 1 having the structure shown in FIGS. 1 and 2, approximately 2.5K
When fuel pressurized to approximately gf/cm2 is being supplied to the fuel injection valve 1, the valve body 7 is driven by a valve body driving means such as an electromagnetic solenoid or a piezoelectric element (not shown), and the valve portion 7a is moved toward the valve seat. When the fuel injection port 3 opens away from the fuel injection port 4, fuel is injected from the fuel injection port 3 at a speed of several tens of m/sec. At this time, at the same time as this fuel injection, when a high frequency voltage of about 200KH2, several tens of V is applied to the membrane vibrator 12 via the lead wires 16a and 16b, the membrane vibrator 1
2, membrane vibration is excited in which the disc bends as shown by the imaginary line in FIG. Longitudinal vibration is excited in the fuel column by the membrane vibration of the vibrator 12. Therefore, the fuel column becomes dense and dense, becomes atomized, becomes fine particles of about 50 gm or less, and the fuel is ejected from the fuel atomization port 15. At this time, the pressurized fuel passes through the fuel injection port 3 at high speed, and the minute space 11 is only as large as the amplitude of the vibrator 12, so there is almost no delay in fuel injection. FIG. 3 illustrates another structure of the vibrator 12, in which a piezoelectric body 12b has an annular shape, and an annular electrode 12 similar to the piezoelectric body 12b is provided on one surface of the piezoelectric body 12b.
c is provided, and a large number of pores 12a are provided on the other side.
An electrode 12d is provided, and the electrode 12c is connected to a lead wire 16a via an electrode lead portion 12e, and the electrode 12d is connected to a lead wire 16b via an electrode lead portion 12f. Even in this case, the fuel injected from the fuel injection port 3 becomes columnar in the pores 12a of the vibrator 12, and longitudinal vibrations are excited in this fuel column by the membrane vibration of the vibrator 12. As a result, the fuel column becomes uneven and atomized, and the atomized fuel is ejected from the fuel atomization port 15. [Effects of the Invention] In the fuel injection method according to the present invention, in a fuel injection method in which fuel is injected into a combustion engine to perform combustion, membrane vibration is applied to a fuel column that is injected from a fuel injection port and becomes a columnar fuel. The fuel injection valve according to the present invention has a configuration in which the fuel is atomized by creating density in the fuel column, and in the fuel injection valve according to the present invention, the fuel injection valve includes a fuel injection port, in the vicinity of the fuel injection port, The fuel ejected from the fuel injection port is used as a columnar fuel, and a vibrator is provided that applies membrane vibration to the fuel column to atomize the fuel, so the fuel can be used with less power from a low fuel flow area to a high fuel flow area. In addition to making it possible to atomize efficiently, the atomization mechanism can be simplified, making it possible to downsize the fuel injection valve, and making it easy to install the fuel injection valve. effect is brought about.
第１図は本発明に係わる燃料噴射弁の一実施例を示す燃
料噴射口部分の拡大断面説明図、第２図（ａ）（ｂ）は
第１図の燃料噴射弁に用いた膜状振動子の各々斜視図お
よび縦断面図、第３図（ａ）（ｂ）は燃料噴射弁に用い
る膜状振動子の他の構造を例示する各々斜視図および縦
断面図、第４図は従来の燃料噴射弁の構造を例示する断
面説明図である。
１・・・燃料噴射弁、
３・・・燃料噴射口、
１２・・・振動子。FIG. 1 is an enlarged sectional explanatory view of a fuel injection port showing an embodiment of the fuel injection valve according to the present invention, and FIGS. 2(a) and 2(b) are membrane vibrations used in the fuel injection valve of FIG. 1. 3(a) and 3(b) are respectively perspective views and longitudinal sectional views illustrating another structure of a membrane vibrator used in a fuel injection valve, and FIG. 4 is a perspective view and a longitudinal sectional view of a conventional FIG. 2 is a cross-sectional explanatory diagram illustrating the structure of a fuel injection valve. 1... Fuel injection valve, 3... Fuel injection port, 12... Vibrator.
Claims (2)
方法において、燃料噴射口から噴出して柱状燃料となっ
た燃料柱に膜振動を印加して前記燃料柱に疎密を生じさ
せることにより前記燃料を微粒化することを特徴とする
燃料噴射方法。(1) In a fuel injection method in which fuel is injected into a combustion engine to perform combustion, membrane vibration is applied to a fuel column that has been injected from a fuel injection port and becomes a columnar fuel to cause the fuel column to become denser and denser. A fuel injection method characterized by atomizing the fuel.
燃料噴射口の近傍に、前記燃料噴射口から噴出した燃料
を柱状燃料として燃料柱に膜振動を印加して前記燃料を
微粒化する振動子を設けたことを特徴とする燃料噴射弁
。(2) In a fuel injection valve equipped with a fuel injection port, vibration is applied near the fuel injection port to atomize the fuel by applying membrane vibration to the fuel column using the fuel injected from the fuel injection port as columnar fuel. A fuel injection valve characterized by having a child.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8687490A JPH03286178A (en) | 1990-03-30 | 1990-03-30 | Fuel injection method and fuel injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8687490A JPH03286178A (en) | 1990-03-30 | 1990-03-30 | Fuel injection method and fuel injection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03286178A true JPH03286178A (en) | 1991-12-17 |
Family
ID=13898976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8687490A Pending JPH03286178A (en) | 1990-03-30 | 1990-03-30 | Fuel injection method and fuel injection valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03286178A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010261424A (en) * | 2009-05-11 | 2010-11-18 | Mitsubishi Electric Corp | Fuel injection valve |
-
1990
- 1990-03-30 JP JP8687490A patent/JPH03286178A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010261424A (en) * | 2009-05-11 | 2010-11-18 | Mitsubishi Electric Corp | Fuel injection valve |
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