JP2000110691A - Fuel injection valve - Google Patents
Fuel injection valveInfo
- Publication number
- JP2000110691A JP2000110691A JP10280323A JP28032398A JP2000110691A JP 2000110691 A JP2000110691 A JP 2000110691A JP 10280323 A JP10280323 A JP 10280323A JP 28032398 A JP28032398 A JP 28032398A JP 2000110691 A JP2000110691 A JP 2000110691A
- Authority
- JP
- Japan
- Prior art keywords
- needle
- fuel
- fuel injection
- injection valve
- nozzle 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.)
- Withdrawn
Links
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は燃料噴射弁に係り、
特に燃料噴射率の制御を良好に行い得る燃料噴射弁に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel injection valve,
In particular, the present invention relates to a fuel injection valve capable of controlling the fuel injection rate in a good manner.
【0002】[0002]
【従来の技術】一般に燃料噴射弁には、中空のノズル本
体内の軸方向にニードルが配置され、このニードルを軸
方向に移動させることによってノズル本体先端に設けら
れた噴孔から燃料を噴射し又は停止するように構成され
る。特に近年では排ガス中のNOx濃度を低減するた
め、初期の燃料噴射率を抑えた燃料噴射弁の実用化が強
く望まれている。2. Description of the Related Art Generally, a fuel injection valve is provided with a needle in an axial direction in a hollow nozzle body, and by moving the needle in an axial direction, fuel is injected from an injection hole provided at a tip end of the nozzle body. Or configured to stop. In particular, in recent years, in order to reduce the NOx concentration in exhaust gas, practical use of a fuel injection valve with a suppressed initial fuel injection rate has been strongly desired.
【0003】例えば実公平6−6227号公報には、初
期の燃料噴射率を抑えるように構成された燃料噴射弁が
開示されている。この燃料噴射弁は、ノズル本体の長手
中間部の内周部に先端側の中空部が後端側の中空部より
も小径となるような小径段差部が形成されており、また
ニードルの長手中間部にはニードルの後端側が先端側よ
りも大径となるような大径段差部が形成されている。こ
のノズル本体の小径段差部とニードルの大径段差部とは
略対応する位置に配置される。これにより、ニードルの
リフト量が小さい燃料噴射の初期において、ノズル本体
内面とニードル外面との間隔が小さく保たれ、燃料通路
が絞られることとなる。よって、このような燃料噴射弁
によれば、燃料噴射初期の噴射率を低く抑えられ排ガス
中のNOx濃度を低減することができる。[0003] For example, Japanese Utility Model Publication No. 6-6227 discloses a fuel injection valve configured to suppress the initial fuel injection rate. In this fuel injection valve, a small-diameter step portion is formed in the inner peripheral portion of the longitudinal middle portion of the nozzle body such that the hollow portion on the front end side is smaller in diameter than the hollow portion on the rear end side, and the longitudinal middle portion of the needle is formed. The portion is formed with a large-diameter step portion such that the rear end side of the needle has a larger diameter than the distal end side. The small-diameter step portion of the nozzle body and the large-diameter step portion of the needle are arranged at positions substantially corresponding to each other. As a result, at the beginning of fuel injection with a small lift amount of the needle, the distance between the inner surface of the nozzle body and the outer surface of the needle is kept small, and the fuel passage is narrowed. Therefore, according to such a fuel injection valve, the injection rate at the initial stage of fuel injection can be suppressed low, and the NOx concentration in exhaust gas can be reduced.
【0004】[0004]
【発明が解決しようとする課題】しかしながら、従来の
ように、ノズル本体の小径段差部とニードルの大径段差
部との相互位置関係を用いて燃料通路を絞るように構成
すると、ニードルが絞り範囲を超えて変位してニードル
の大径段差部がノズル本体の小径段差部からずれた状態
ではノズル本体とニードルとの径方向隙間が大きくなる
ことから、ニードルの軸ずれが生じ易く、ニードルの移
動軸がずれたときに、ノズル本体の段差部とニードルの
段差部との間に無理な接触が起こり、燃料噴射弁の作動
不良に至るおそれがある。However, if the fuel passage is throttled by using the mutual positional relationship between the small-diameter step portion of the nozzle body and the large-diameter step portion of the needle as in the prior art, the needle has a restricted range. When the large-diameter stepped portion of the needle is displaced beyond the small-diameter stepped portion of the nozzle body, the radial gap between the nozzle body and the needle becomes large, so that the needle is likely to be misaligned and the needle moves. When the shaft is displaced, excessive contact may occur between the step portion of the nozzle body and the step portion of the needle, which may lead to malfunction of the fuel injection valve.
【0005】したがって本発明の目的は、燃料噴射初期
の噴射率を抑制しながらノズル本体内のニードルを安定
して移動可能な燃料噴射弁を提供することにある。Accordingly, it is an object of the present invention to provide a fuel injection valve capable of stably moving a needle in a nozzle body while suppressing an injection rate at an early stage of fuel injection.
【0006】[0006]
【課題を解決するための手段】本発明者は、燃料噴射初
期の噴射率を抑制しながらニードルがノズル本体内を安
定して移動できるような燃料噴射弁の構成を鋭意検討し
た。その結果、ノズル本体の内面又はニードルの外面の
いずれか一方の周方向の一部を切り欠いて形成した切り
欠き部を有する絞り部を設けることにより、ニードルが
ノズル本体内を安定して移動可能であることを見出し
て、本発明に至ったものである。すなわち本発明に係る
燃料噴射弁は、先端に噴孔を有する中空のノズル本体
と、上記ノズル本体の内面との間に燃料供給路を形成す
ると共に上記ノズル本体内での軸線方向変位により上記
噴孔を開閉するニードルと、上記燃料供給路の中途部に
設けられ上記噴孔を開とする方向のニードル変位に伴い
上記噴孔への燃料供給量を徐々に増大する絞り部とを備
え、上記絞り部は上記ノズル本体の内面又は上記ニード
ルの外面のいずれか一方の周方向の一部を切り欠いて形
成された切り欠き部を有して構成されるものである。Means for Solving the Problems The present inventors diligently studied a configuration of a fuel injection valve capable of stably moving a needle in a nozzle body while suppressing an injection rate at an initial stage of fuel injection. As a result, the needle can stably move in the nozzle body by providing the throttle portion having a cutout portion formed by cutting out a part of one of the inner surface of the nozzle body and the outer surface of the needle in the circumferential direction. It has been found that this has led to the present invention. That is, the fuel injection valve according to the present invention forms a fuel supply passage between a hollow nozzle main body having an injection hole at the tip and an inner surface of the nozzle main body, and displaces the fuel by an axial displacement in the nozzle main body. A needle that opens and closes a hole, and a throttle portion that is provided in the middle of the fuel supply path and gradually increases a fuel supply amount to the injection hole with needle displacement in a direction to open the injection hole, The throttle portion is configured to have a cutout portion formed by cutting out a part of one of the inner surface of the nozzle body and the outer surface of the needle in the circumferential direction.
【0007】このように構成することにより、噴孔を開
とする方向のニードル変位に伴い絞り部が噴孔への燃料
供給量を徐々に増大するので、燃料噴射初期の燃料噴射
率を抑えることができるし、燃料供給路の絞り部におい
て、ノズル本体の内面とニードルの外面とが、切り欠き
部を除いて、それぞれ径を変えることなく互いに向き合
う状態に保たれることとなるので、ニードルがノズル本
体内を極めて安定して移動することができるようにな
る。With this configuration, the throttle portion gradually increases the amount of fuel supplied to the injection hole with the needle displacement in the direction of opening the injection hole, so that the fuel injection rate at the beginning of fuel injection can be suppressed. In the throttle portion of the fuel supply passage, the inner surface of the nozzle body and the outer surface of the needle are maintained in a state where they face each other without changing the diameter, except for the notch portion, so that the needle is It is possible to move extremely stably in the nozzle body.
【0008】[0008]
【発明の実施の形態】以下、本発明を実施例を用いて詳
細に説明する。図1〜3は本発明をコモンレール式燃料
噴射システムを備えたディーゼルエンジンに適用した実
施例であり、図1は、本発明に係る燃料噴射弁の一実施
例とその制御系を示した図である。燃料噴射弁10の構
成は後述するとして、まずその制御系について説明す
る。図のように、その制御系は、例えば120MPaの
高圧燃料を燃料噴射弁10に供給する蓄圧室31と、蓄
圧室31から燃料噴射弁10へ圧送される燃料を調整す
る高圧レギュレータ32と、蓄圧室31に高圧燃料を供
給する高圧燃料ポンプ33と、高圧燃料ポンプ33に燃
料タンク40から燃料を供給する低圧燃料ポンプ34
と、低圧燃料ポンプ34から高圧燃料ポンプ33へ圧送
される燃料を調整する低圧レギュレータ35と、燃料噴
射弁10における余剰燃料を燃料タンク40に戻すリタ
ーン通路36と、燃料噴射弁10を制御する電子制御装
置(ECU)20とを備える。ECU20は、内燃機関
の運転状態を検出する運転状態検出手段から、アクセル
ポジション21、エンジン回転数22などの各種検出値
を取り込む。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to embodiments. 1 to 3 show an embodiment in which the present invention is applied to a diesel engine equipped with a common rail fuel injection system. FIG. 1 is a diagram showing an embodiment of a fuel injection valve according to the present invention and a control system thereof. is there. The configuration of the fuel injection valve 10 will be described later, and its control system will be described first. As shown in the figure, the control system includes a pressure accumulation chamber 31 that supplies high-pressure fuel of, for example, 120 MPa to the fuel injection valve 10, a high-pressure regulator 32 that regulates fuel pressure-fed from the pressure accumulation chamber 31 to the fuel injection valve 10, A high-pressure fuel pump 33 for supplying high-pressure fuel to the chamber 31 and a low-pressure fuel pump 34 for supplying fuel from the fuel tank 40 to the high-pressure fuel pump 33
A low-pressure regulator 35 that regulates fuel pumped from the low-pressure fuel pump 34 to the high-pressure fuel pump 33; a return passage 36 that returns excess fuel in the fuel injection valve 10 to the fuel tank 40; and an electronic device that controls the fuel injection valve 10. And a control device (ECU) 20. The ECU 20 takes in various detected values such as an accelerator position 21 and an engine speed 22 from an operating state detecting means for detecting an operating state of the internal combustion engine.
【0009】燃料噴射弁10は、先端部に噴孔1を有す
る中空のノズル本体2と、ノズル本体2の中空部内に軸
方向に配置され噴孔1を開閉するニードル3と、ノズル
本体2の内面とニードル3の外面との間に形成された燃
料供給路4と、燃料供給路4に高圧燃料を導くべくノズ
ル本体2に形成された燃料ライン5と、高圧燃料をリー
ク室6に導くオリフィス7と、制御信号が付与される制
御ソレノイド8と、制御ソレノイド8の動作に従ってオ
リフィス9の開閉を行う電磁弁11とを備えて構成され
る。また、燃料噴射弁10の下部には、噴孔1への燃料
供給量を制御するため絞り部12が設けられる。The fuel injection valve 10 includes a hollow nozzle body 2 having an injection hole 1 at the tip, a needle 3 disposed axially in the hollow portion of the nozzle body 2 to open and close the injection hole 1, A fuel supply passage 4 formed between the inner surface and the outer surface of the needle 3, a fuel line 5 formed in the nozzle body 2 for introducing high-pressure fuel to the fuel supply passage 4, and an orifice for introducing high-pressure fuel to the leak chamber 6 7, a control solenoid 8 to which a control signal is applied, and an electromagnetic valve 11 for opening and closing the orifice 9 in accordance with the operation of the control solenoid 8. A throttle portion 12 is provided below the fuel injection valve 10 to control the amount of fuel supplied to the injection hole 1.
【0010】絞り部12は、図のように、ノズル本体2
の内面に形成された突出部13と、ニードル3の外面
と、ニードル3の外面に形成された切り欠き部14とか
ら構成される。切り欠き部14は、ニードル3の外周面
の周方向の一部を所定の軸方向長さにわたって切り欠い
て形成された一つ又は複数個のスリット状の切り欠きか
らなり、図示の実施例では複数の切り欠きが周方向に等
間隔に配列されている。この切り欠きの形状や個数ある
いは配列の間隔や深さ等は、所望の燃料噴射率の特性に
合せて適宜決められる。また、切り欠き部14の形成位
置を図示のものとは逆にして、ノズル本体2の内面に切
り欠き部を形成し、ニードル3の外面に突出部を形成す
るようにしてもよい。ニードル3のリフト量は例えば0
mm〜0.35mmである。[0010] As shown in FIG.
Of the needle 3, an outer surface of the needle 3, and a notch 14 formed on the outer surface of the needle 3. The cutout portion 14 is formed of one or a plurality of slit-shaped cutouts formed by cutting out a part of the outer circumferential surface of the needle 3 in the circumferential direction over a predetermined axial length. A plurality of notches are arranged at equal intervals in the circumferential direction. The shape and number of the notches or the intervals and depths of the arrangements are appropriately determined according to the characteristics of the desired fuel injection rate. Alternatively, the notch 14 may be formed in a position opposite to that shown in the drawing, so that a notch is formed on the inner surface of the nozzle body 2 and a protrusion is formed on the outer surface of the needle 3. The lift amount of the needle 3 is, for example, 0
mm to 0.35 mm.
【0011】図2(a)〜(f)は絞り部12の具体的
構成例を示す図で、(a)、(c)、(e)はそれぞれ
側面図、(b)、(d)、(f)はそれぞれA−A’、
B−B’、C−C’の断面図である。同図(a)、
(b)は、ニードル3がリフト量0mmの状態を示す。
この状態では、ノズル本体2の内面の突出部13とニー
ドル3の外面との間に狭い間隙61が形成されており、
この狭い間隙61を介して燃料がわずかに通過可能とな
る。同図(c)、(d)は、ニードル3がリフト量0.
1mmの状態を示す。この状態でも、ノズル本体2の内
面の突出部13とニードル3の外面との間は依然として
狭い間隙62しか形成されておらず、燃料はこの狭い間
隙62を介してわずかに通過可能となるにすぎない。こ
れに対して、同図(e)、(f)は、ニードル3がリフ
ト量0.1mmを超えた状態を示すものである。この状
態では、ノズル本体2の内面に形成された突出部13と
ニードル3の外面に形成された切り欠き部14との間に
は広い間隙63が形成され、燃料はこの間隙63を介し
て大量に通過可能となる。このように、絞り部12は噴
孔1を開とする方向のニードル変位に伴い噴孔1側への
燃料供給量を徐々に増大する特性を有している。FIGS. 2 (a) to 2 (f) are views showing specific examples of the configuration of the aperture section 12, wherein (a), (c) and (e) are side views, respectively, (b), (d) and (d). (F) is AA ′,
It is sectional drawing of BB 'and CC'. FIG.
(B) shows a state where the needle 3 has a lift amount of 0 mm.
In this state, a narrow gap 61 is formed between the protrusion 13 on the inner surface of the nozzle body 2 and the outer surface of the needle 3,
The fuel can slightly pass through the narrow gap 61. FIGS. 3C and 3D show that the needle 3 has a lift amount of 0.
1 mm is shown. Even in this state, only a narrow gap 62 is still formed between the protrusion 13 on the inner surface of the nozzle body 2 and the outer surface of the needle 3, and the fuel can only slightly pass through the narrow gap 62. Absent. On the other hand, FIGS. 6E and 6F show a state where the lift amount of the needle 3 exceeds 0.1 mm. In this state, a wide gap 63 is formed between the protrusion 13 formed on the inner surface of the nozzle main body 2 and the cutout 14 formed on the outer surface of the needle 3, and a large amount of fuel flows through the gap 63. Can be passed. As described above, the throttle portion 12 has a characteristic that the fuel supply amount to the injection hole 1 side is gradually increased with the needle displacement in the direction in which the injection hole 1 is opened.
【0012】図2(a)〜(f)に示される絞り部の構
成から明らかなように、ノズル本体2の突出部13の内
面とニードル3の外面とは、切り欠き部14を除いて、
それぞれ径を変えることなく互いに向き合う状態に保た
れる。このことを図に照らして言えば、絞り部において
はニードル3を移動しても、ノズル本体2の突出部13
の内面の径は常にφ1であり、またそれと対向するニー
ドル3の外面の径は切り欠き部14の部分を除いて常に
φ2であるということである。従ってニードル3は、従
来のように段差部においてノズル本体内面の段差部と無
理な接触を起こすことなく、ノズル本体2の中を極めて
安定して移動することができるようになる。2 (a) to 2 (f), the inner surface of the protruding portion 13 of the nozzle body 2 and the outer surface of the needle 3 except for the cutout portion 14 are different from each other.
They are kept facing each other without changing the diameter. In light of this, if the needle 3 is moved in the throttle portion, the protrusion 13
Is always φ1, and the diameter of the outer surface of the needle 3 facing it is always φ2 except for the cutout portion 14. Therefore, the needle 3 can move extremely stably in the nozzle body 2 without causing excessive contact with the step portion on the inner surface of the nozzle body at the step portion as in the related art.
【0013】このように構成された燃料噴射弁10は次
のように動作する。図1において、ECU20から制御
ソレノイド8に開弁信号が付与されていない場合、電磁
弁11は閉じている。このとき、燃料供給路4とリーク
室6の圧力は同じなので、ニードル3はリフト量0mm
の状態であり、噴孔1から燃料は噴射されない。一方、
ECU20から制御ソレノイド8に開弁信号が付与され
た場合は、電磁弁11が開く。このとき、リーク室6の
圧力が下がるので、ニードル3が徐々にリフト量0.3
5mmまでリフトされ、燃料供給路4を介して噴孔1か
ら燃料が噴射される。燃料供給路4の圧力が低下しリー
ク室6の圧力を下回ると、ニードル3のリフト量が0m
mに戻され、噴孔1からの燃料噴射が停止する。The fuel injection valve 10 configured as described above operates as follows. In FIG. 1, when no valve opening signal is given from the ECU 20 to the control solenoid 8, the solenoid valve 11 is closed. At this time, since the pressure in the fuel supply passage 4 and the pressure in the leak chamber 6 are the same, the needle 3 is lifted by 0 mm.
No fuel is injected from the injection hole 1. on the other hand,
When a valve opening signal is given from the ECU 20 to the control solenoid 8, the solenoid valve 11 opens. At this time, since the pressure in the leak chamber 6 decreases, the needle 3 gradually increases the lift amount 0.3
The fuel is lifted to 5 mm, and fuel is injected from the injection hole 1 through the fuel supply path 4. When the pressure of the fuel supply passage 4 decreases and falls below the pressure of the leak chamber 6, the lift amount of the needle 3 becomes 0 m.
m, and the fuel injection from the injection hole 1 stops.
【0014】図3(a)はニードルリフト量と時間の関
係を示す図、(b)は燃料噴射率と時間の関係を示す図
である。同図(b)の破線は燃料供給路に絞り部無しの
場合の噴射率の変化を、また実線は絞り部有りの場合の
噴射率の変化をそれぞれ示している。同図の実線のよう
に、燃料噴射の初期は、燃料噴射率を抑えるように制御
されるため、排ガス中のNOx濃度を低減できる。噴射
率の特性について説明すると、燃料噴射弁10は、切り
欠き部を有する絞り部12を設けることにより、燃料噴
射初期のニードルリフト量が0mm〜0.1mmの間
は、ノズル先端への燃料圧力、流れが減少され噴射率が
抑制される。また、ニードルリフト量が0.1mm〜
0.35mmの間は、絞り部12の開口面積が急増し、
絞り効果を殆どなくしてノズル先端部へ燃料圧力を十分
に伝え噴射率が大きくなる。本実施例では、このように
燃料噴射初期の燃料噴射率を抑制することができ、しか
も前述したようにニードルを全行程に渡って安定して移
動させることができる。FIG. 3A is a diagram showing the relationship between the needle lift amount and time, and FIG. 3B is a diagram showing the relationship between the fuel injection rate and time. The dashed line in FIG. 3B indicates a change in the injection rate when there is no throttle in the fuel supply path, and the solid line indicates a change in the injection rate when there is the throttle. As shown by the solid line in the figure, since the initial stage of fuel injection is controlled so as to suppress the fuel injection rate, the NOx concentration in the exhaust gas can be reduced. Explaining the characteristics of the injection rate, the fuel injection valve 10 is provided with the throttle portion 12 having a notch so that the fuel pressure applied to the nozzle tip during the initial stage of the fuel injection is between 0 mm and 0.1 mm. The flow is reduced and the injection rate is suppressed. In addition, the needle lift amount is 0.1mm ~
During the period of 0.35 mm, the opening area of the throttle unit 12 rapidly increases,
The fuel pressure is sufficiently transmitted to the tip of the nozzle with almost no throttling effect, and the injection rate is increased. In this embodiment, the fuel injection rate at the initial stage of fuel injection can be suppressed in this way, and the needle can be stably moved over the entire stroke as described above.
【0015】[0015]
【発明の効果】本発明によれば、燃料噴射初期の燃料噴
射率を抑制しながらノズル本体内のニードルを安定して
移動可能な燃料噴射弁を得ることができる。According to the present invention, it is possible to obtain a fuel injection valve capable of stably moving the needle in the nozzle body while suppressing the fuel injection rate at the beginning of fuel injection.
【図1】本発明に係る燃料噴射弁の一実施例とその制御
系を示した図である。FIG. 1 is a diagram showing an embodiment of a fuel injection valve according to the present invention and a control system thereof.
【図2】(a)〜(f)は絞り部の具体的構成例を示す
図で、(a)、(c)、(e)はそれぞれ側面図、
(b)、(d)、(f)はそれぞれA−A’、B−
B’、C−C’の断面図である。FIGS. 2 (a) to 2 (f) are diagrams showing specific examples of the configuration of a throttle unit, where (a), (c) and (e) are side views, respectively.
(B), (d) and (f) are AA 'and B-
It is sectional drawing of B 'and CC'.
【図3】(a)はニードルリフト量と時間の関係を示す
図、(b)は噴射率と時間の関係を示す図である。3A is a diagram illustrating a relationship between a needle lift amount and time, and FIG. 3B is a diagram illustrating a relationship between an injection rate and time.
1 噴孔 2 ノズル本体 3 ニードル 4 燃料供給路 5 燃料ライン 6 リーク室 7、9 オリフィス 8 制御ソレノイド 10 燃料噴射弁 11 電磁弁 12 絞り部 13 突出部 14 切り欠き部 DESCRIPTION OF SYMBOLS 1 Injection hole 2 Nozzle main body 3 Needle 4 Fuel supply path 5 Fuel line 6 Leak chamber 7, 9 Orifice 8 Control solenoid 10 Fuel injection valve 11 Solenoid valve 12 Throttle section 13 Projection section 14 Notch section
フロントページの続き Fターム(参考) 3G066 AA07 AB02 AC09 AD12 BA12 BA31 CC06T CC08T CC14 CC18 CC26 CC64T CC67 CC68U CC70 CD26 CD29 CD30 CE13 CE22 DA11 DC04 DC09 Continued on front page F term (reference) 3G066 AA07 AB02 AC09 AD12 BA12 BA31 CC06T CC08T CC14 CC18 CC26 CC64T CC67 CC68U CC70 CD26 CD29 CD30 CE13 CE22 DA11 DC04 DC09
Claims (1)
と、上記ノズル本体の内面との間に燃料供給路を形成す
ると共に上記ノズル本体内での軸線方向変位により上記
噴孔を開閉するニードルと、上記燃料供給路の中途部に
設けられ上記噴孔を開とする方向のニードル変位に伴い
上記噴孔への燃料供給量を徐々に増大する絞り部とを備
え、上記絞り部は上記ノズル本体の内面又は上記ニード
ルの外面のいずれか一方の周方向の一部を切り欠いて形
成された切り欠き部を有して構成されていることを特徴
とする燃料噴射弁。A needle for forming a fuel supply passage between a hollow nozzle body having an injection hole at an end thereof and an inner surface of the nozzle body, and opening and closing the injection hole by axial displacement in the nozzle body. A throttle provided in the middle of the fuel supply path and gradually increasing the amount of fuel supplied to the injection hole with needle displacement in a direction to open the injection hole, wherein the throttle is provided with the nozzle A fuel injection valve comprising: a notch formed by notching a part of one of an inner surface of a main body and an outer surface of the needle in a circumferential direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10280323A JP2000110691A (en) | 1998-10-01 | 1998-10-01 | Fuel injection valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10280323A JP2000110691A (en) | 1998-10-01 | 1998-10-01 | Fuel injection valve |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2000110691A true JP2000110691A (en) | 2000-04-18 |
Family
ID=17623409
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10280323A Withdrawn JP2000110691A (en) | 1998-10-01 | 1998-10-01 | Fuel injection valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2000110691A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009115000A (en) * | 2007-11-07 | 2009-05-28 | Denso Corp | Nozzle |
-
1998
- 1998-10-01 JP JP10280323A patent/JP2000110691A/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009115000A (en) * | 2007-11-07 | 2009-05-28 | Denso Corp | Nozzle |
JP4760815B2 (en) * | 2007-11-07 | 2011-08-31 | 株式会社デンソー | nozzle |
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Legal Events
Date | Code | Title | Description |
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A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20060110 |