JPH02241971A - Fuel injection device for internal combustion engines - Google Patents
Fuel injection device for internal combustion enginesInfo
- Publication number
- JPH02241971A JPH02241971A JP6137989A JP6137989A JPH02241971A JP H02241971 A JPH02241971 A JP H02241971A JP 6137989 A JP6137989 A JP 6137989A JP 6137989 A JP6137989 A JP 6137989A JP H02241971 A JPH02241971 A JP H02241971A
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- housing
- injection device
- internal combustion
- fuel
- 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
-
- 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
- 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
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
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)
- Manufacturing & Machinery (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】
［発明の目的］
〈産業上の利用分野〉
本発明は機関内に燃料を噴射する燃料噴射ノズルを備え
る内燃機関用燃料噴射装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] <Industrial Application Field> The present invention relates to a fuel injection device for an internal combustion engine that includes a fuel injection nozzle for injecting fuel into the engine.
〈従来の技術〉
従来より、内燃機関には、例えば特開昭５０−６１５１
４号または同５１−８３９３０号公報等に開示されるよ
うに、内蔵する電磁コイルを外部のコントロールユニッ
トにより制御して、またはカムにより機械式に所定のタ
イミング及び時間で燃料を噴射する燃料噴射装置が使用
されている。<Prior art> Conventionally, internal combustion engines have been developed using, for example, Japanese Patent Application Laid-Open No. 50-6151.
No. 4 or No. 51-83930, etc., a fuel injection device that controls a built-in electromagnetic coil by an external control unit or mechanically injects fuel at a predetermined timing and time using a cam. is used.
燃料噴射装置は、その先端に設けられた燃料噴射ノズル
をシールリング等を介してシリンダヘッドや吸気マニホ
ールド内に突入させ、かつ外部に配置される燃料入口部
に燃料供給管を接続させて装着される。A fuel injection device is installed by inserting a fuel injection nozzle installed at its tip into a cylinder head or intake manifold through a seal ring, etc., and connecting a fuel supply pipe to a fuel inlet located outside. Ru.
燃料噴射装置のハウジングは通常鉄・鋼等の鍛造品で形
成されるが、機関への装着時にはハウジング外表面の大
部分が大気中に暴露されるので錆が発生し易く、商品性
が損われる虞れがある。更に、燃料噴射装置の作動音が
ハウジングを介して外部に伝達され易いために騒音発生
の原因になるだけでなく、周囲の高温の影響を受は易く
燃料噴射に支障を生じる虞れがある。The housing of a fuel injection device is usually made of a forged product made of iron or steel, but when installed in an engine, most of the outer surface of the housing is exposed to the atmosphere, making it susceptible to rust, which impairs its marketability. There is a risk. Furthermore, the operating sound of the fuel injection device is easily transmitted to the outside through the housing, which not only causes noise generation, but also is easily influenced by surrounding high temperatures, which may cause trouble in fuel injection.
〈解決しようとする課題〉
そこで、本発明の目的は、燃料噴射装置の装着時に露出
するハウジング外表面を雰囲気から遮断して錆の発生を
有効に防止し、商品性の維持を図ると共に、燃料噴射装
置の作動音を伝達され難くして騒音を低減させ、かつ周
囲の高温の燃料噴射への影響を排除し得る内燃機関用燃
料噴射装置を提供することにある。<Problems to be Solved> Therefore, an object of the present invention is to effectively prevent the occurrence of rust by shielding the outer surface of the housing that is exposed when a fuel injection device is installed from the atmosphere, thereby maintaining marketability, and at the same time It is an object of the present invention to provide a fuel injection device for an internal combustion engine, which can reduce noise by making it difficult for the operating sound of the injection device to be transmitted, and can eliminate the influence of surrounding high temperature on fuel injection.
［発明の構成］
く課題を解決するための手段〉
上述の目的は、本発明によれば、ハウジングと、前記ハ
ウジングに収容される燃料噴射ノズルとを備える内燃機
関用燃料噴射装置であって、前記機関への装着時に大気
中に露出する前記ハウジングの外表面を被覆する被膜を
有することを特徴とする内燃機関用燃料噴射装置を提供
することにより達成される。[Structure of the Invention] Means for Solving the Problems According to the present invention, the above-mentioned object is a fuel injection device for an internal combustion engine comprising a housing and a fuel injection nozzle accommodated in the housing, This is achieved by providing a fuel injection device for an internal combustion engine, characterized in that it has a coating that covers the outer surface of the housing that is exposed to the atmosphere when installed in the engine.
〈作用〉
このようにすれば、被膜により雰囲気が遮断されるので
ハウジング外表面に於ける錆の発生が防止され、かつ燃
料噴射装置の内部から作動音を及び周囲から内部に熱を
伝達し難くすることができる。<Operation> In this way, the atmosphere is blocked by the film, so rust is prevented from forming on the outer surface of the housing, and it is also difficult to transmit operating noise from the inside of the fuel injection device and heat from the surroundings to the inside. can do.
〈実施例〉
以下、本発明の好適実施例を添付の図面について詳しく
説明する。<Embodiments> Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
第１図に示されるように、本発明を適用した燃料噴射弁
１は、ハウジング２に内設された電磁コイル３とその下
側に設けられた噴射ノズル４とを備える。電磁コイル３
は、非磁性樹脂材料で形成されたボビン５の中央外周に
巻装した絶縁電線からなり、その内側には固定鉄心６が
配置され、かつリターンスプリング７を介してプランジ
ャ８がハウジング２内を軸線方向に沿って移動可能に配
置されている。As shown in FIG. 1, a fuel injection valve 1 to which the present invention is applied includes an electromagnetic coil 3 installed inside a housing 2 and an injection nozzle 4 provided below the electromagnetic coil 3. Electromagnetic coil 3
consists of an insulated wire wound around the center outer periphery of a bobbin 5 made of a non-magnetic resin material, a fixed iron core 6 is arranged inside the bobbin 5, and a plunger 8 is moved along the axis of the housing 2 via a return spring 7. are arranged so as to be movable along the direction.
燃料噴射弁１の上部には燃料コネクタ９が設けられ、そ
の上端に燃料人口１０が開設されている。A fuel connector 9 is provided at the upper part of the fuel injection valve 1, and a fuel connector 10 is opened at the upper end of the fuel connector 9.
燃料コネクタ９の内部にはフィルタ１１が挿着されてい
る。ボビン５の中心には軸線方向に沿って燃料通路１２
が貫設されている。燃料コネクタ９には後述するように
燃料パイプが接続され、燃料が燃料人口１０から燃料通
路１２を下向きに通過して噴射ノズル４へ導かれる。A filter 11 is inserted into the fuel connector 9 . A fuel passage 12 is provided in the center of the bobbin 5 along the axial direction.
is installed through it. A fuel pipe is connected to the fuel connector 9 as will be described later, and fuel is guided from the fuel port 10 downward through the fuel passage 12 to the injection nozzle 4.
噴射ノズル４は、ノズルボディ１３とその内部に形成さ
れた軸線方向のガイド孔１４内を昇降可能なニードル１
５とを備える。ニードル１５はその上端に於てプランジ
ャ８と一体的に移動するように連結されている。ノズル
ボディ１３の底部には噴射孔１６が設けられており、電
磁コイル３によりプランジャ８がリターンスプリング７
の付勢力に抗して固定鉄心６に吸引され、ニードル１５
が上昇して燃料がガイド孔１４とニードル１５との隙間
を通って外部に噴射される。The injection nozzle 4 includes a nozzle body 13 and a needle 1 that can be raised and lowered within an axial guide hole 14 formed inside the nozzle body 13.
5. The needle 15 is connected at its upper end to the plunger 8 so as to move together therewith. An injection hole 16 is provided at the bottom of the nozzle body 13, and a plunger 8 is moved by a return spring 7 by an electromagnetic coil 3.
The needle 15 is attracted to the fixed iron core 6 against the urging force of
rises and the fuel is injected to the outside through the gap between the guide hole 14 and the needle 15.
また、ボビン５には正負一対のターミナル１７が一体的
に埋設され、電磁コイル３と電気的に接続されている。Further, a pair of positive and negative terminals 17 is integrally embedded in the bobbin 5 and electrically connected to the electromagnetic coil 3.
ボビン５から上方へ突出するターミナル１７の部分は部
分的に非磁性樹脂材料からなるカバー１８に埋設され、
かつ先端部分がカバー１８と一体的に形成されたソケッ
ト１９内に突出している。A portion of the terminal 17 that projects upward from the bobbin 5 is partially embedded in a cover 18 made of a non-magnetic resin material.
Moreover, the tip portion protrudes into a socket 19 formed integrally with the cover 18.
ハウジング２には、噴射ノズル４とカバー１８との間の
外周面２ａに合成樹脂で形成された薄膜２０が被着され
ている。この薄膜２０は、ポリオレフィン、ポリ塩化ビ
ニル、ポリ弗化ビニリデン等からなる熱収縮性チューブ
を嵌装しかつ加熱してハウジング外周面２ａに密着させ
ることにより形成される。熱収縮性チューブはハウジン
グ２への挿着が容易で量産性に優れ、かつ比較的安価で
あるので好ましい。A thin film 20 made of synthetic resin is adhered to the outer peripheral surface 2a of the housing 2 between the injection nozzle 4 and the cover 18. This thin film 20 is formed by fitting a heat-shrinkable tube made of polyolefin, polyvinyl chloride, polyvinylidene fluoride, etc., and heating it to bring it into close contact with the outer peripheral surface 2a of the housing. A heat-shrinkable tube is preferable because it can be easily inserted into the housing 2, has excellent mass productivity, and is relatively inexpensive.
燃料噴射弁１は、第２図に示すように機関の吸気マニホ
ールド２１に装着される。燃料噴射弁１の噴射ノズル４
は、その先端が吸気マニホールド２１内に突入するよう
にシールリング２２を介して吸気マニホールド２１の取
付ボス部２３に取り付けられる。このシールリング２２
は吸気マニホールド２１内部の気密を保持し、振動を防
止しかつ高温部からの熱を遮断するようにゴム材料等で
形成される。The fuel injection valve 1 is attached to an intake manifold 21 of an engine as shown in FIG. Injection nozzle 4 of fuel injection valve 1
is attached to the mounting boss portion 23 of the intake manifold 21 via the seal ring 22 so that its tip protrudes into the intake manifold 21. This seal ring 22
is made of a rubber material or the like to maintain airtightness inside the intake manifold 21, prevent vibrations, and block heat from high temperature parts.
燃料噴射弁１上端の燃料コネクタ９には、マウントラバ
ー２４が嵌装され、かつ燃料パイプ２５が０リング２６
を介して液密に接続される。燃料パイプ２５は、スペー
サ２７を介してボルト２８によって吸気マニホールド２
１外面に突設された取付部２９に固定され、図示されな
い燃料ポンプから燃料を概ね一定圧力で燃料噴射弁１に
供給する。A mount rubber 24 is fitted to the fuel connector 9 at the upper end of the fuel injection valve 1, and the fuel pipe 25 is fitted with an O-ring 26.
connected in a liquid-tight manner. The fuel pipe 25 is connected to the intake manifold 2 by a bolt 28 via a spacer 27.
The fuel injection valve 1 is fixed to a mounting portion 29 protruding from the outer surface of the fuel injection valve 1, and supplies fuel to the fuel injection valve 1 at a substantially constant pressure from a fuel pump (not shown).
このようにして装着された燃料噴射弁１のハウジング外
周面２ａは、噴射ノズル４とカバー１８との間が外部に
配置されるが、薄膜２０が被覆されているので雰囲気か
ら遮断され、錆の発生や汚染から有効に保護される。更
に、一方で燃料噴射弁１内部の作動音が外部に伝達され
難くなり、かつ他方で機関の高温部からの熱が燃料噴射
弁１内部に伝達され難くなる。The outer circumferential surface 2a of the housing of the fuel injection valve 1 mounted in this manner is located outside between the injection nozzle 4 and the cover 18, but is covered with the thin film 20, so it is shielded from the atmosphere and free from rust. Effectively protected from outbreaks and contamination. Furthermore, on the one hand, the operating noise inside the fuel injection valve 1 becomes difficult to be transmitted to the outside, and on the other hand, the heat from the high temperature section of the engine becomes difficult to be transmitted into the inside of the fuel injection valve 1.
ソケット１９には図示されないコネクタが接続され、外
部のコントロールユニットから噴射信号がターミナル１
７を介して電磁コイル３に入力する。この噴射信号に従
って電磁コイル３の吸引力によりニードル１５が上昇し
、噴射孔１６から燃料が最適のタイミングかつ時間で吸
気マニホールド２１内に噴射される。A connector (not shown) is connected to the socket 19, and an injection signal is sent from the external control unit to the terminal 1.
7 to the electromagnetic coil 3. In accordance with this injection signal, the needle 15 is raised by the attraction force of the electromagnetic coil 3, and fuel is injected into the intake manifold 21 from the injection hole 16 at the optimum timing and time.
尚、本発明は上述の実施例に様々な変形・変更を加えて
実施することができる。例えば、薄膜２０は、ハウジン
グ外周面２ａに樹脂材料を吹付は塗りすることによって
形成することができる。また、ハウジング外周面２ａに
ニッケルーリン、亜鉛、亜鉛−ニッケル等のめっきを施
し、またはパフ研磨によりハウジング外周面２ａの粗度
を上げることによっても同様の効果が得られる。更に、
上述の実施例では電磁コイルを内蔵した燃料噴射弁につ
いて説明したが、本発明は機械式の燃料噴射弁を含む他
の様々な型式の燃料噴射装置に広く適用することができ
る。Note that the present invention can be implemented by adding various modifications and changes to the above-described embodiments. For example, the thin film 20 can be formed by spraying or painting a resin material on the outer peripheral surface 2a of the housing. The same effect can also be obtained by plating the outer circumferential surface 2a of the housing with nickel-phosphorus, zinc, zinc-nickel, or the like, or by increasing the roughness of the outer circumferential surface 2a of the housing by means of puff polishing. Furthermore,
In the above embodiment, a fuel injection valve with a built-in electromagnetic coil was described, but the present invention can be widely applied to various other types of fuel injection devices including mechanical fuel injection valves.
［発明の効果コ
上述したように本発明によれば、機関に装着した際に大
気中に露出する燃料噴射弁のハウジング外表面に熱収縮
性樹脂チューブを被着させることによって、ハウジング
外表面を雰囲気から有効に遮断できるので、錆の発生を
防止して商品性を維持することができ、かつ燃料噴射弁
の作動弁が外部に伝達され難くなって騒音の発生を防止
することができると共に、周囲の高温に対する断熱効果
が得られるので安定した燃料噴射を確保することができ
る。[Effects of the Invention] As described above, according to the present invention, the outer surface of the housing of the fuel injector, which is exposed to the atmosphere when installed in an engine, is coated with a heat-shrinkable resin tube. Since it can be effectively isolated from the atmosphere, it is possible to prevent the occurrence of rust and maintain marketability, and it is also possible to prevent the operation valve of the fuel injection valve from being transmitted to the outside, thereby preventing the generation of noise. Since a heat insulating effect against the surrounding high temperature can be obtained, stable fuel injection can be ensured.
第１図は、本発明を適用した燃料噴射弁の縦断面図であ
る。
第２図は、第１図の燃料噴射弁を機関の吸気マニホール
ドに装着した状態を示す断面図である。
１・・・燃料噴射弁 ２・・・ハウジング２ａ・・
・外周面 ４・・・噴射ノズル２０・・・被膜
特 許 出 願 人 本田技研工業株式会社代
理 人 弁理士 大 島 陽 −第
図
第２図FIG. 1 is a longitudinal sectional view of a fuel injection valve to which the present invention is applied. FIG. 2 is a sectional view showing a state in which the fuel injection valve of FIG. 1 is attached to an intake manifold of an engine. 1...Fuel injection valve 2...Housing 2a...
・Outer peripheral surface 4...Injection nozzle 20...Coating patent applicant: Honda Motor Co., Ltd.
Patent Attorney Yo Oshima - Figure 2
Claims (6)
噴射ノズルとを備える内燃機関用燃料噴射装置であって
、 前記機関への装着時に大気中に露出する前記ハウジング
の外表面を被覆する被膜を有することを特徴とする内燃
機関用燃料噴射装置。(1) A fuel injection device for an internal combustion engine, comprising a housing and a fuel injection nozzle housed in the housing, the fuel injection device having a coating that covers the outer surface of the housing that is exposed to the atmosphere when installed in the engine. A fuel injection device for an internal combustion engine, characterized by:
脂材料の薄膜であることを特徴とする特許請求の範囲第
１項に記載の燃料噴射装置。(2) The fuel injection device according to claim 1, wherein the coating is a thin film of a resin material applied to the outer surface of the housing.
性樹脂チューブにより形成されることを特徴とする特許
請求の範囲第２項に記載の内燃機関用燃料噴射装置。(3) The fuel injection device for an internal combustion engine according to claim 2, wherein the thin film is formed of a heat-shrinkable resin tube covered on the outer surface of the housing.
付けることにより形成されることを特徴とする特許請求
の範囲第２項に記載の内燃機関用燃料噴射装置。(4) The fuel injection device for an internal combustion engine according to claim 2, wherein the thin film is formed by spraying a resin material onto the outer surface of the housing.
とを特徴とする特許請求の範囲第１項に記載の内燃機関
用燃料噴射装置。(5) The fuel injection device for an internal combustion engine according to claim 1, wherein the outer surface of the housing is plated.
とを特徴とする特許請求の範囲第１項に記載の内燃機関
用燃料噴射装置。(6) The fuel injection device for an internal combustion engine according to claim 1, wherein the outer surface of the housing is roughened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6137989A JPH02241971A (en) | 1989-03-14 | 1989-03-14 | Fuel injection device for internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6137989A JPH02241971A (en) | 1989-03-14 | 1989-03-14 | Fuel injection device for internal combustion engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02241971A true JPH02241971A (en) | 1990-09-26 |
Family
ID=13169486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6137989A Pending JPH02241971A (en) | 1989-03-14 | 1989-03-14 | Fuel injection device for internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02241971A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5634597A (en) * | 1994-06-18 | 1997-06-03 | Robert Bosch Gmbh | Electromagnetically actuated fuel injection valve |
| JPH09195895A (en) * | 1996-01-10 | 1997-07-29 | Sanshin Ind Co Ltd | Fuel injection valve protection structure for ship drive device |
| WO2002055870A1 (en) * | 2001-01-05 | 2002-07-18 | Hitachi, Ltd. | High-pressure fuel feed pump |
| WO2006035656A1 (en) * | 2004-09-27 | 2006-04-06 | Keihin Corporation | Solenoid fuel injection valve |
| WO2006035657A1 (en) * | 2004-09-27 | 2006-04-06 | Keihin Corporation | Solenoid fuel injection valve |
-
1989
- 1989-03-14 JP JP6137989A patent/JPH02241971A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5634597A (en) * | 1994-06-18 | 1997-06-03 | Robert Bosch Gmbh | Electromagnetically actuated fuel injection valve |
| JPH09195895A (en) * | 1996-01-10 | 1997-07-29 | Sanshin Ind Co Ltd | Fuel injection valve protection structure for ship drive device |
| WO2002055870A1 (en) * | 2001-01-05 | 2002-07-18 | Hitachi, Ltd. | High-pressure fuel feed pump |
| WO2006035656A1 (en) * | 2004-09-27 | 2006-04-06 | Keihin Corporation | Solenoid fuel injection valve |
| WO2006035657A1 (en) * | 2004-09-27 | 2006-04-06 | Keihin Corporation | Solenoid fuel injection valve |
| US7520449B2 (en) | 2004-09-27 | 2009-04-21 | Keihin Corporation | Electromagnetic fuel injection valve |
| US7703709B2 (en) | 2004-09-27 | 2010-04-27 | Keihin Corporation | Electromagnetic fuel injection valve |
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