JPS62162769A - Electromagnetic type fuel injection valve - Google Patents
Electromagnetic type fuel injection valveInfo
- Publication number
- JPS62162769A JPS62162769A JP345286A JP345286A JPS62162769A JP S62162769 A JPS62162769 A JP S62162769A JP 345286 A JP345286 A JP 345286A JP 345286 A JP345286 A JP 345286A JP S62162769 A JPS62162769 A JP S62162769A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- guide hole
- supply port
- ball valve
- feeding port
- 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.)
- Granted
Links
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はボール弁体を用い、弁座下流側に旋回流発生通
路、燃料膜形成孔を有する電磁式燃料噴射弁に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electromagnetic fuel injection valve that uses a ball valve body and has a swirl flow generation passage and a fuel film forming hole downstream of a valve seat.
現在、１個の燃料噴射弁で複数の気筒に設置を供給する
燃料供給システムで、要求される混合気を応答よく供給
できるように、吸気管内に設置された絞り弁の下流側に
特開昭６０−３５１６９号に記載のような燃料噴射弁を
配置して分配性能、過渡性能を良くすることが提案され
ている。しかし、この燃料噴射弁は負圧による噴射量変
化の点については脱磁されてぃながった。Currently, in fuel supply systems that supply multiple cylinders with a single fuel injection valve, in order to supply the required air-fuel mixture in a responsive manner, a Japanese Patent Application Publication Co., Ltd. It has been proposed to improve distribution performance and transient performance by arranging fuel injection valves as described in No. 60-35169. However, this fuel injection valve was not demagnetized in terms of changes in injection amount due to negative pressure.
上記従来例の噴射弁では、ノズル本体の案内孔にボール
弁体の外周部が摺動可能に支持され、ボール弁体外周部
と弁座の間の案内孔内周面に燃料供給口が設けられた構
造になっており、燃料供給口に供給された燃料の一部が
ボール弁体に設けた小さな流路面積の縦構、燃料排出導
管を通って環流している。しかし、この環流では弁座付
近に作用する負圧が大きくなるに従い成長する燃料中の
泡を十分に逃すことができず、発生する泡の量により弁
の開成応答時間が長くなり、負圧の増大によって噴射量
が必要以上に増加する問題があった。In the conventional injection valve described above, the outer circumference of the ball valve body is slidably supported in the guide hole of the nozzle body, and the fuel supply port is provided on the inner circumference of the guide hole between the outer circumference of the ball valve body and the valve seat. A portion of the fuel supplied to the fuel supply port is circulated through a vertical structure with a small flow area provided in the ball valve body and a fuel discharge conduit. However, this circulation cannot sufficiently release the bubbles in the fuel that grow as the negative pressure acting near the valve seat increases, and the amount of bubbles generated lengthens the valve opening response time, causing the negative pressure to increase. There was a problem in that the injection amount increased more than necessary due to the increase.
本発明の目的は燃料の微粒化特性を被えずに十分な環流
を行ない、泡による弁の閉成応答時間への影響を少なく
シ、負圧による噴射量変化が小さい電磁式噴射弁を提供
することにある。The purpose of the present invention is to provide an electromagnetic injection valve that allows sufficient circulation without compromising the atomization characteristics of fuel, reduces the influence of bubbles on the valve closing response time, and minimizes changes in injection amount due to negative pressure. It's about doing.
上記目的はノズル本体の案内孔内周面にボール弁体外周
部の接極子側と通じる環流供給口を設けることにより解
決される。The above object is achieved by providing a reflux supply port on the inner circumferential surface of the guide hole of the nozzle body, which communicates with the armature side of the outer circumference of the ball valve body.
環流供給口を設けることによって、十分な環流が行なわ
れて、負圧が大きくなるに従い成長する泡の逃しか良く
なるので、泡による弁の閉成応答時間への影響が少なく
なる。また、環流を多くすることにより燃料流の旋回速
度成分に比べて軸方向速度成分が大きくなるが、環流供
給口で燃料に旋回エネルギを与えて補なうので、噴射に
より十分安定した燃料膜を形成し、燃料の微粒化特性を
良好にすることができる。By providing the reflux supply port, sufficient reflux is performed, and bubbles that grow as the negative pressure increases can be easily released, thereby reducing the influence of bubbles on the closing response time of the valve. In addition, by increasing the reflux, the axial velocity component becomes larger than the swirling velocity component of the fuel flow, but since swirling energy is given to the fuel at the reflux supply port to compensate, a sufficiently stable fuel film can be created by injection. This can improve the atomization properties of the fuel.
以下、本発明の一実施例を第１図、第２図、第３図によ
り説明する。An embodiment of the present invention will be described below with reference to FIGS. 1, 2, and 3.
鋼から成る弁ケーシング１内に中心孔２を有しており、
この中心孔２は電磁石の巻線３を有する巻線体４を受容
しており、かつかなり狭い同軸的な孔５に続いている。It has a central hole 2 in a valve casing 1 made of steel,
This central bore 2 receives a winding body 4 with the electromagnet winding 3 and adjoins a fairly narrow coaxial bore 5.
さらに巻線体４内へ挿入された鉄心６が同軸的に延びて
おり、鉄心６はフランジ部７を以って弁ケーシング１内
に取り付けられている。鉄心６と孔５との間で中断して
いる磁気回路は接極子８によって架橋されている。Further, an iron core 6 inserted into the winding body 4 extends coaxially, and the iron core 6 is attached to the inside of the valve casing 1 with a flange portion 7. The magnetic circuit interrupted between the iron core 6 and the hole 5 is bridged by an armature 8.
ノズル弁体９に設けた案内孔１０の先端に、噴射弁の軸
線に対して傾斜して旋回流発生通路１１、袋穴状の燃料
膜形成孔１２を有するオリフィス１３が固定的に結合さ
れ、ノズル本体９の案内孔ｌｏ内に弁座１４と協動して
旋回流発生通路１１を開閉制御し、燃料を燃料膜形成孔
１２より外部に間欠的に噴射供給するボール弁体１５を
配設している。そして、ボール弁体１５の外周部１６は
ノズル本体９の案内孔１ｏと摺動可能となっている。An orifice 13 having a swirling flow generation passage 11 and a blind hole-shaped fuel film forming hole 12 is fixedly connected to the tip of a guide hole 10 provided in the nozzle valve body 9 at an angle with respect to the axis of the injection valve. A ball valve element 15 is disposed in the guide hole lo of the nozzle body 9, which controls the opening and closing of the swirling flow generation passage 11 in cooperation with the valve seat 14, and intermittently injects fuel to the outside through the fuel film forming hole 12. are doing. The outer peripheral portion 16 of the ball valve body 15 is slidable on the guide hole 1o of the nozzle body 9.
連結棒１７の端部には接極子８が取り付けられ、他方の
端部にボール弁体１５が固定的に結合されている。ボー
ル弁体１５の外周部には連結棒１７に沿って縦溝１８が
切削加工されている。An armature 8 is attached to one end of the connecting rod 17, and a ball valve body 15 is fixedly connected to the other end. A vertical groove 18 is cut into the outer circumference of the ball valve body 15 along the connecting rod 17.
ノズル本体９の案内孔１ｏ内周面には、ボール弁体１５
の外周部１６と弁座１４の間の位置に燃料供給口１９、
ボール弁体１５の外周部１６の接極子８側に環流供給口
２０が開口している。環流供給口２０は第２図に示すよ
うに、案内孔１ｏの内周円の接線方向に沿い、かつ燃料
の旋回方向と同一方向になるように設けられている。A ball valve body 15 is provided on the inner peripheral surface of the guide hole 1o of the nozzle body 9.
A fuel supply port 19 is located between the outer circumference 16 and the valve seat 14.
A reflux supply port 20 is opened on the armature 8 side of the outer peripheral portion 16 of the ball valve body 15 . As shown in FIG. 2, the circulation supply port 20 is provided along the tangential direction of the inner circumferential circle of the guide hole 1o and in the same direction as the swirling direction of the fuel.
噴射弁を保持する保持体２１には燃料供給導管２２が設
けられ、この設料供給導管を通って送られた燃料は燃料
供給口１９．環流供給口２ｏに入る。そして、燃料供給
口１９から入った燃料の一部は縦溝１８を通って連結棒
１７側に流れ、環流供給口から入って燃料は旋回流とな
って接極子８側に流れる。The holder 21 holding the injection valve is provided with a fuel supply conduit 22, through which the fuel is sent to the fuel supply port 19. Enter the reflux supply port 2o. A part of the fuel entering from the fuel supply port 19 passes through the vertical groove 18 and flows to the connecting rod 17 side, and the fuel entering from the circulation supply port becomes a swirling flow and flows to the armature 8 side.
これら２つの流れの燃料は共に弁ケーシング１の燃料戻
し口２３を通り、保持体２１に設けられた燃料排出導管
２４をへて戻される。These two streams of fuel pass together through a fuel return port 23 in the valve casing 1 and are returned via a fuel discharge conduit 24 provided in the holder 21.
鉄心６内には圧縮ばね２５が受容され、接極子８、連結
棒１７を介してボール弁体１５を弁座１４に押し付けて
いる。A compression spring 25 is received within the iron core 6 and presses the ball valve body 15 against the valve seat 14 via the armature 8 and the connecting rod 17.
上記構成においてその動作を説明する。The operation of the above configuration will be explained.
巻線３への励磁用パルス電圧が遮断されて電磁引力が消
去されて場合には、接極子８は圧縮ばね２５のばね力に
よって下降位置に保持され、ボール弁体１５と弁座１４
の間を閉とし旋回流発生通路１１を閉鎖している。この
とき燃料供給導管２２から送られる加圧された燃料は、
ノズル弁体９にあけられた燃料供給口１９、環流供給口
２０に供給されたのち案内孔１０内に流入する。環流供
給口２０は案内孔１０の接線方向に設けられているため
、燃料は適確に旋回速度を与えられノズル本体９の案内
孔１ｏ内で効率良く旋回運動をする。そして、燃料供給
口１９に供給された燃料をボール弁体１５の縦溝１８を
通して吸い上げ、案内孔１０内で十分に旋回運動しなか
ら接極子８に流れる燃料は、環流用の燃料戻し口２３を
通り、燃料排出導管２４から圧力燃料供給源（図示せず
）に環流される。When the excitation pulse voltage to the winding 3 is cut off and the electromagnetic attraction is eliminated, the armature 8 is held in the lowered position by the spring force of the compression spring 25, and the ball valve body 15 and the valve seat 14
The space between them is closed to close the swirling flow generation passage 11. At this time, the pressurized fuel sent from the fuel supply conduit 22 is
After being supplied to a fuel supply port 19 and a reflux supply port 20 provided in the nozzle valve body 9, the fuel flows into the guide hole 10. Since the reflux supply port 20 is provided in the tangential direction of the guide hole 10, the fuel is given an appropriate swirling speed and efficiently rotates within the guide hole 1o of the nozzle body 9. The fuel supplied to the fuel supply port 19 is sucked up through the vertical groove 18 of the ball valve body 15, and the fuel that does not sufficiently rotate within the guide hole 10 and flows to the armature 8 is sent to the fuel return port 23 for circulation. through the fuel exhaust conduit 24 to a pressure fuel source (not shown).
この一連の流通は、加圧燃料が噴射弁に供給されている
間、常時、継続されている。This series of flow continues at all times while pressurized fuel is being supplied to the injection valve.
次に、巻線３への励磁用パルス電圧が印加されて電磁吸
引力が発生する場合には、接極子８は圧縮ばね２５のば
ね力に抗して吸引され、上昇作動してボール弁体１５と
弁座１４間を開とし、旋回流発生通路１１を開放するの
である。これにより、旋回流発生通路１１で旋回速度を
与えられた燃料は、煙流膜形成孔１２で十分に旋回して
薄膜を形成し微細噴霧として噴出する。このとき、燃料
供給口１９から供給された燃料の一部はボール弁体１５
の縦溝１８を通り、！Ａ流供給口２０の旋回運動する燃
料と共に燃料戻し口２３、燃料排出導管２４から圧力燃
料供給源（図示せず）に環流される。これにより、弁座
１４付近で噴出側負圧が大きくなるに従い成長する燃料
中の泡の逃げが良好で、泡による弁の閉応答時間への影
響が小さい。Next, when an excitation pulse voltage is applied to the winding 3 and an electromagnetic attractive force is generated, the armature 8 is attracted against the spring force of the compression spring 25 and moves upward, causing the ball valve body to move upward. 15 and the valve seat 14 to open the swirling flow generation passage 11. As a result, the fuel given a swirling speed in the swirling flow generation passage 11 sufficiently swirls in the smoke film forming hole 12 to form a thin film and is ejected as fine spray. At this time, part of the fuel supplied from the fuel supply port 19 is transferred to the ball valve body 15.
Pass through the vertical groove 18 of ! Together with the swirling fuel in the A flow supply port 20, the fuel is returned to a pressure fuel supply source (not shown) through a fuel return port 23 and a fuel discharge conduit 24. As a result, the bubbles in the fuel that grow as the ejection side negative pressure increases near the valve seat 14 can escape easily, and the effect of the bubbles on the closing response time of the valve is small.
このため、第３図に示すように従来の燃料供給口１９だ
けの負圧特性線ａに比べ、負圧特性線すのように負圧Ｐ
ａによる噴射量Ｑ変化が小さい。Therefore, as shown in FIG. 3, compared to the negative pressure characteristic line a of only the conventional fuel supply port 19, the negative pressure P as shown in the negative pressure characteristic line
The change in injection amount Q due to a is small.
本実施例によれば、ボール弁体１５の外周部１６の接極
子８側に開口し、燃料に旋回運動を与える環流供給口２
０を設ける簡単な構造で、負正による噴射量への影響を
小さくできる。According to this embodiment, the reflux supply port 2 opens on the armature 8 side of the outer circumference 16 of the ball valve body 15 and gives swirling motion to the fuel.
With a simple structure in which 0 is provided, the influence of negative and positive on the injection amount can be reduced.
第４図、第５図は本発明の他の実施例を示すもので、第
１図、第２図と異なる点は案内孔１０に設けた逃げ部２
６の内周面とボール弁体１５の外周部１６で過流室２７
を形成し、逃げ部２６の内周円の接線方向に沿い、かつ
燃料の旋回方向と同一方向に開口する燃料供給口１９′
を、ボール弁体１５最大径位置の逃げ部２６内周面に設
けたことである。これによって環流供給口２０を燃料供
給口１９′と一つにでき、更に燃料供給口１９′とボー
ル弁体１５の外周部１６との位匝関係により、ボール弁
体１５の開弁時には噴出流の旋回運動を大きくし、ボー
ル弁体１５の閉弁時には環流の旋回運動を大きくできる
。このため、構造が簡単で、燃料の微粒化良好な噴射弁
が得られる。4 and 5 show other embodiments of the present invention, and the difference from FIGS. 1 and 2 is that a relief part 2 provided in the guide hole 10
An overflow chamber 27 is formed between the inner circumferential surface of 6 and the outer circumferential portion 16 of the ball valve body 15.
A fuel supply port 19' is formed along the tangential direction of the inner circumferential circle of the relief portion 26 and opens in the same direction as the swirling direction of the fuel.
is provided on the inner peripheral surface of the relief portion 26 at the maximum diameter position of the ball valve body 15. This allows the reflux supply port 20 to be integrated with the fuel supply port 19', and furthermore, due to the positional relationship between the fuel supply port 19' and the outer circumference 16 of the ball valve body 15, when the ball valve body 15 is opened, a jet stream is ejected. The swirling motion of the circulating flow can be increased when the ball valve body 15 is closed. Therefore, an injection valve with a simple structure and good atomization of fuel can be obtained.
第６図、第７図は本発明の更に他の実施例を示すもので
、第４図、第５図と異なる点は連結棒１７に燃料に旋回
運動を与える周方向通路２７、環流通路２８を設けた点
である。これによって噴射弁の可動部重量を軽くするこ
とができる。FIG. 6 and FIG. 7 show still another embodiment of the present invention, and the points different from FIGS. 4 and 5 are a circumferential passage 27 that gives the connecting rod 17 a swirling motion to the fuel, and a circulation passage 28. The point is that This allows the weight of the movable part of the injection valve to be reduced.
本発明によれば、簡単な構造で負圧が大きくなるに従い
成長する泡の逃しを良くできるので、安価で負圧による
噴射量へ影響が小さい電磁式燃料噴射弁を提供すること
ができる。According to the present invention, bubbles that grow as the negative pressure increases can be easily released with a simple structure, so it is possible to provide an electromagnetic fuel injection valve that is inexpensive and has little influence on the injection amount due to the negative pressure.
第１図は本発明の一実施例は電磁式燃料噴射弁の縦断面
図、第２図は第１図のＡ−Ａ線断面図。
第３図は負圧に対する噴射量比較図、第４図は他の実施
例の噴射弁の部分断面図、第５図は第４図のＢ−Ｂ線断
面図、第６図は更に他の実施例の噴射弁の部分断面図、
第７図は第６図のＣ−Ｃ線断面図である。
１・・・弁ケーシング、２・・・中心孔、３・・・巻線
、４・・巻線体、５・・・孔、６・・・鉄心、７・・・
フランジ部、８・・・接極子、９・・・ノズル本体、１
０・・・案内孔、１１・・・旋回流発生通路、１２・・
・燃料膜形成孔、１３・・オリフィス、１４・・・弁座
、１５・・・ボール弁体、１６・・・外周部、１７・・
・連結棒、１８・・縦溝、１９・・・燃料供給口、２０
・・・環流供給口、２１・・・保持体、２２・・燃料供
給導管、２３・・・燃料戻し口、２４・・・燃料排出導
管、２５・・・圧縮ばね、２６・・・逃げ部、１粁Ａ
１テ ネール苛」ト
ＩＬ外明峰
１９ 燃ｌｌ！Ｉ＋恢令Ｏ
ＬＯＡ ｉＬ罎冷口
￥Ｇ４囚 第ｄ
２ら 會５ ＋１’ 郷
２り Ｎ「方蛸り１格
ｚ８ 環１糺遡Ｓ４FIG. 1 is a longitudinal sectional view of an electromagnetic fuel injection valve according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line A--A in FIG. 1. Fig. 3 is a comparison diagram of the injection amount with respect to negative pressure, Fig. 4 is a partial sectional view of an injection valve of another embodiment, Fig. 5 is a sectional view taken along the line B-B of Fig. 4, and Fig. 6 is a further A partial cross-sectional view of an injection valve of an example,
FIG. 7 is a sectional view taken along line CC in FIG. 6. DESCRIPTION OF SYMBOLS 1... Valve casing, 2... Center hole, 3... Winding wire, 4... Winding body, 5... Hole, 6... Iron core, 7...
Flange portion, 8... Armature, 9... Nozzle body, 1
0... Guide hole, 11... Swirling flow generation passage, 12...
・Fuel film forming hole, 13... Orifice, 14... Valve seat, 15... Ball valve body, 16... Outer periphery, 17...
・Connecting rod, 18... Vertical groove, 19... Fuel supply port, 20
... Circulation supply port, 21 ... Holding body, 22 ... Fuel supply conduit, 23 ... Fuel return port, 24 ... Fuel discharge pipe, 25 ... Compression spring, 26 ... Relief part , 1 粁 A 1 TENNER RU" TOIL Gaimeiho 19 Burn! I+Korei O LOA iL 罎 Cold mouth ￥ G4 prisoner d 2 et al. 5 + 1' go 2 ri N ``Hatakori 1 case z8 Kan 1 tadaori S4
Claims (3)
の軸線に対して傾斜した旋回流発生通路、袋穴状の燃料
膜形成孔を有し、前記ノズル本体の案内孔内に前記弁座
と協動して前記旋回流発生通路を開閉制御し、燃料を前
記燃料膜形成孔より外部に間欠的に噴射供給するボール
弁体の外周部を摺動可能に配設し、前記ボール弁体の外
周部と前記弁座の間の前記案内孔内周面に燃料供給口を
設けた形式の噴射弁において、前記ノズル本体の案内孔
内周面に前記ボール弁体外周部の接極子側と通じる環流
供給口を設けたことを特徴とする電磁式燃料噴射弁。1. The guide hole provided in the nozzle body has a valve seat, a swirl flow generation passage inclined with respect to the axis of the injection valve, and a blind hole-shaped fuel film forming hole at the end of the guide hole, and the valve seat is provided in the guide hole of the nozzle body. A ball valve element is slidably disposed on the outer periphery of a ball valve element that cooperates with a seat to control opening and closing of the swirling flow generation passage and intermittently injects fuel to the outside from the fuel film forming hole. In an injection valve of a type in which a fuel supply port is provided on the inner circumferential surface of the guide hole between the outer circumference of the nozzle body and the valve seat, the armature side of the outer circumference of the ball valve body is provided on the inner circumferential surface of the guide hole of the nozzle body. An electromagnetic fuel injection valve characterized by having a reflux supply port that communicates with the reflux supply port.
に沿い、かつ燃料の旋回方向と同一方向に開口すること
を特徴とする特許請求の範囲第１項記載の電磁式燃料噴
射弁。2. 2. The electromagnetic fuel injection valve according to claim 1, wherein the circulation supply port opens along a tangential direction of the inner circumferential circle of the guide hole and in the same direction as the swirling direction of the fuel.
弁体の外周部で渦流室を形成し、前記逃げ部の内周円の
接線方向に沿い、かつ燃料の旋回方向と同一方向に開口
する前記燃料供給口を、前記ボール弁体最大径位置の前
記逃げ部内周面に設けたことを特徴とする特許請求の範
囲第１項記載の電磁式燃料噴射弁。3. A vortex chamber is formed by the inner circumferential surface of the escape part provided in the guide hole and the outer circumference of the ball valve body, and opens along the tangential direction of the inner circumferential circle of the escape part and in the same direction as the swirling direction of the fuel. 2. The electromagnetic fuel injection valve according to claim 1, wherein the fuel supply port is provided on the inner peripheral surface of the relief portion at the maximum diameter position of the ball valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61003452A JPH0670414B2 (en) | 1986-01-13 | 1986-01-13 | Electromagnetic fuel injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61003452A JPH0670414B2 (en) | 1986-01-13 | 1986-01-13 | Electromagnetic fuel injection valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62162769A true JPS62162769A (en) | 1987-07-18 |
| JPH0670414B2 JPH0670414B2 (en) | 1994-09-07 |
Family
ID=11557720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61003452A Expired - Lifetime JPH0670414B2 (en) | 1986-01-13 | 1986-01-13 | Electromagnetic fuel injection valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0670414B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0347916A1 (en) * | 1988-06-23 | 1989-12-27 | WEBER S.r.l. | Electromagnetic fuel metering and atomizing valve |
| WO2008110407A1 (en) * | 2007-03-09 | 2008-09-18 | Robert Bosch Gmbh | Metering valve for a liquid medium, in particular an exhaust gas train metering valve |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6035169A (en) * | 1983-08-08 | 1985-02-22 | Hitachi Ltd | Fuel injection valve |
| JPS60195969U (en) * | 1984-06-06 | 1985-12-27 | 三菱自動車工業株式会社 | Installation structure of filter for vapor discharge passage of injector |
| JPS62139971A (en) * | 1985-12-11 | 1987-06-23 | Hitachi Ltd | Fuel injection device |
-
1986
- 1986-01-13 JP JP61003452A patent/JPH0670414B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6035169A (en) * | 1983-08-08 | 1985-02-22 | Hitachi Ltd | Fuel injection valve |
| JPS60195969U (en) * | 1984-06-06 | 1985-12-27 | 三菱自動車工業株式会社 | Installation structure of filter for vapor discharge passage of injector |
| JPS62139971A (en) * | 1985-12-11 | 1987-06-23 | Hitachi Ltd | Fuel injection device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0347916A1 (en) * | 1988-06-23 | 1989-12-27 | WEBER S.r.l. | Electromagnetic fuel metering and atomizing valve |
| US4971291A (en) * | 1988-06-23 | 1990-11-20 | Weber S.R.L. | Electromagnetic fuel metering and atomizing valve |
| WO2008110407A1 (en) * | 2007-03-09 | 2008-09-18 | Robert Bosch Gmbh | Metering valve for a liquid medium, in particular an exhaust gas train metering valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0670414B2 (en) | 1994-09-07 |
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