JPH02199268A - Electromagnetic fuel injection valve device - Google Patents
Electromagnetic fuel injection valve deviceInfo
- Publication number
- JPH02199268A JPH02199268A JP1018677A JP1867789A JPH02199268A JP H02199268 A JPH02199268 A JP H02199268A JP 1018677 A JP1018677 A JP 1018677A JP 1867789 A JP1867789 A JP 1867789A JP H02199268 A JPH02199268 A JP H02199268A
- Authority
- JP
- Japan
- Prior art keywords
- delivery pipe
- groove
- hole
- pipe hole
- fuel injection
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 66
- 238000002347 injection Methods 0.000 title claims abstract description 38
- 239000007924 injection Substances 0.000 title claims abstract description 38
- 238000001914 filtration Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract 1
- 239000002828 fuel tank Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
- F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
- F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明に、電磁式燃料噴射弁装置（関し、特にデリバリ
パイプ孔内に沈んで燃料とともに流れるゴミ等の異物を
、燃料噴射弁に流入させないようにしたものである。Detailed Description of the Invention "Industrial Application Field" The present invention relates to an electromagnetic fuel injection valve device (particularly in preventing foreign matter such as dirt that sinks into a delivery pipe hole and flows together with fuel from flowing into a fuel injection valve). This is how it was done.
「従来の技術」
電磁式燃料噴射弁に、実開昭６１−９９６７０号公報に
示されるように、燃料流入口に樹脂製メツシュ材からな
るフィルタを嵌着し、燃料とともに流入するゴミ等の異
物を漉し取るようにしていた。"Prior Art" As shown in Japanese Utility Model Application Publication No. 61-99670, an electromagnetic fuel injection valve is equipped with a filter made of a resin mesh material at the fuel inlet to prevent foreign matter such as dust from flowing in with the fuel. I tried to strain it out.
「発明が解決しようとする課題」
しかしながら、−旦フィルタに漉し取られたゴミ等の異
物はそのままフィルタ内に沈澱し、点検時の分解掃除以
外にに、フィルタ外へ排出することはできなかった。``Problem to be solved by the invention'' However, foreign matter such as dirt that has been filtered out by the filter remains in the filter and cannot be discharged from the filter other than by disassembly and cleaning during inspection. .
このため、フィルタ内に・沈澱するゴミ等の異物が堆積
し燃料流路面積が狭くなると、燃料圧力等の条件が変わ
り燃料噴射弁の噴射量特性に影響を及ぼして、所期の特
性を発揮できない等の問題点がある。For this reason, if foreign matter such as dust accumulates inside the filter and the fuel flow path area narrows, conditions such as fuel pressure will change and this will affect the injection amount characteristics of the fuel injector, allowing it to achieve the desired characteristics. There are problems such as not being able to do so.
本発明に、前記問題点を解決するためになされたもので
、デリバリパイプ孔内に沈んで燃料とともに流れるゴミ
等の異物を、燃料噴射弁に流入させないようにした電磁
式燃料噴射弁装置を提供することを目的とするものであ
る。The present invention has been made to solve the above-mentioned problems, and provides an electromagnetic fuel injection valve device that prevents foreign matter such as dirt that sinks into the delivery pipe hole and flows together with the fuel from flowing into the fuel injection valve. The purpose is to
「課題を解決するための手段」
前記目的を達成するための第１の具体的手段に、ほぼ水
平に配置されたデリバリパイプの下方の一側に斜め下向
き仁エンジン気筒数分の分岐管を形成し、該分岐管に電
磁式燃料噴射弁を嵌着してなる電磁式燃料噴射弁装置に
おいて、デリバリパイプ孔の下方の片側に、デリバリパ
イプの全長に亘って溝を形成し、その溝底が前記デリバ
リパイプ孔に連通する分岐管の孔縁よりも低くかつ該分
岐管孔と交わらないようにするとともに、溝底に続く一
方の溝壁をデリバリパイプ孔の底の位置で、若しくは該
デリバリパイプ孔の底の位置を越える分岐管形成側の位
置でデリバリパイプ孔に連続させたことを特徴とするも
のであり、
第２の具体的手段に、ほぼ水平に配置されたデリバリパ
イプに下向き若しくは斜め下向きにエンジン気筒数分の
分岐管を形成し、該分岐管に電磁式燃料噴射弁を嵌着し
てなる電磁式燃料噴射弁装置において、前記分岐管にフ
ィルタを嵌着し、そのフィルタの一過面をデリバリパイ
プ孔内に突出させたことを特徴とするものである。"Means for Solving the Problem" The first specific means for achieving the above objective is to form diagonally downward branch pipes for the number of engine cylinders on one side of the lower part of the delivery pipe arranged almost horizontally. In an electromagnetic fuel injection valve device in which an electromagnetic fuel injection valve is fitted into the branch pipe, a groove is formed on one side of the lower side of the delivery pipe hole over the entire length of the delivery pipe, and the bottom of the groove is It should be lower than the hole edge of the branch pipe communicating with the delivery pipe hole and not intersect with the branch pipe hole, and one groove wall following the groove bottom should be at the bottom of the delivery pipe hole or the delivery pipe. It is characterized by being connected to the delivery pipe hole at a position on the side where the branch pipe is formed beyond the bottom position of the hole, and the second specific means is to connect the delivery pipe arranged substantially horizontally downward or diagonally. In an electromagnetic fuel injection valve device in which branch pipes for the number of engine cylinders are formed downward, and an electromagnetic fuel injection valve is fitted into the branch pipes, a filter is fitted into the branch pipes, and one of the filters is fitted into the branch pipes. It is characterized in that the upper surface protrudes into the delivery pipe hole.
「作用」
前記第１の具体的手段によれば、デリバリパイプに形成
された分岐管の孔縁より低くかつ該分岐管孔と交わらな
い溝底を有する清が、デリバリパイプ孔の片側で該デリ
バリパイプの全長に亘り形成され、溝底（続く一方の溝
壁をデリバリパイプ孔の底の位置若しくは該孔の底の位
置を越える分岐管形成側の位置でデリバリバイ１孔に連
続させることにより、デリバリパイプ孔内は沈み燃料と
ともに流れる異物を、該溝壁に沿ってスムーズに溝底へ
落として分岐管内に流入しないようにし、燃料流動によ
り下流側へ流す。"Operation" According to the first specific means, the groove having the groove bottom that is lower than the hole edge of the branch pipe formed in the delivery pipe and that does not intersect with the branch pipe hole is able to connect the delivery pipe on one side of the delivery pipe hole. By connecting the groove bottom (continuing one groove wall) to the delivery pipe hole 1 at the bottom of the delivery pipe hole or at a position on the branch pipe formation side beyond the bottom of the hole, which is formed over the entire length of the pipe, Foreign matter that sinks inside the delivery pipe hole and flows together with the fuel falls smoothly to the bottom of the groove along the groove wall to prevent it from flowing into the branch pipe, and is caused to flow downstream by the fuel flow.
また、第２の具体的手段によれば、フィルタを分岐管（
嵌着し、そのフィルタの一過面をデリバリパイプ内に突
出させ、デリバリパイプ孔内で燃料とともに流れる異物
を漉し取って、燃料流動により下流側へ流す。Further, according to the second specific means, the filter is connected to a branch pipe (
The filter is fitted, one side of the filter is projected into the delivery pipe, and foreign matter flowing along with the fuel in the delivery pipe hole is filtered out and flowed downstream by the fuel flow.
「実施例１」
請求項１に記載した充明の実施例を、添付図面第１〜４
図に基づいて説明する。"Example 1" The embodiment of the present invention described in claim 1 is shown in attached drawings Nos. 1 to 4.
This will be explained based on the diagram.
第１図に、電磁式燃料噴射弁装置ｌにおける電磁式燃料
噴射弁２及びプレッシャレギュレータ３とデリバリパイ
プ４との接続関係を示した概要側面図である。FIG. 1 is a schematic side view showing the connection relationship between the electromagnetic fuel injection valve 2, the pressure regulator 3, and the delivery pipe 4 in the electromagnetic fuel injection valve device l.
デリバリパイ１４に、ほぼ水平に配置され一端に燃料の
供給を受けるための接続管５を設け、他端に燃料を一定
の加圧状態に調整するとともに、余分な燃料を図示しな
いフューエルタンクは戻すプレッシャレギュレータ３を
接続する。また、デリバリパイプ４の下方の一側にエン
ジンの気筒数分の分岐管６を斜め下向きに形成する。The delivery pipe 14 is provided with a connecting pipe 5 arranged almost horizontally at one end for receiving fuel supply, and at the other end adjusting the fuel to a constant pressurized state, and returning excess fuel to a fuel tank (not shown). Connect pressure regulator 3. Further, on one side below the delivery pipe 4, branch pipes 6 corresponding to the number of cylinders of the engine are formed diagonally downward.
電磁式燃料噴射弁２に、弁本体１０に形成した燃料流入
口１１と燃料噴射口１２との間にニードルパルプ１３と
該ニードルパルプ１３と一体のプランジャ１４とリター
ンスプリング１５とを配設し、電磁コイル１６の通電に
よりプランジャ１４を吸引してニードルパルプ１３を開
き、加圧燃料を燃料噴射口１２から噴射するもので、燃
料流入口１１にに、メツシュ材からなるフィルタ１７の
袋状の濾過面１８を、本体１０内に向けて嵌着する。こ
の電磁式燃料噴射弁２を、前記デリバリパイプ４の分岐
管６内に嵌着する（第２図参照）。A needle pulp 13, a plunger 14 integrated with the needle pulp 13, and a return spring 15 are disposed in the electromagnetic fuel injection valve 2 between a fuel inlet 11 and a fuel injection port 12 formed in the valve body 10, When the electromagnetic coil 16 is energized, the plunger 14 is attracted, the needle pulp 13 is opened, and pressurized fuel is injected from the fuel injection port 12.The fuel inlet 11 is filtered by a bag-shaped filter 17 made of mesh material. The surface 18 is fitted into the main body 10. This electromagnetic fuel injection valve 2 is fitted into the branch pipe 6 of the delivery pipe 4 (see FIG. 2).
デリバリパイプ孔２０の片側（分岐管形成側と逆側）の
下方にはデリバリパイプ４の全長に亘る溝２１を形成し
、その溝２１の最深部である溝底２２が、デリバリパイ
プ孔２０内に連通する分岐管孔７の孔縁８より低くなる
ように、また溝底２２が該分岐管孔７と交わらないよう
にする。さらに、溝底２２に続く一方の溝壁２３をデリ
バリパイプ孔２０の底の位置２０ａで連続させるか（第
３図）、又はデリバリパイプ孔２０の底の位置２０ａを
越える分岐管形成側の位１１２０ｂで該デリバリパイプ
孔２０に連続させる（第４図）。A groove 21 spanning the entire length of the delivery pipe 4 is formed below one side of the delivery pipe hole 20 (the side opposite to the side where the branch pipe is formed), and the groove bottom 22, which is the deepest part of the groove 21, is located inside the delivery pipe hole 20. The groove bottom 22 is made to be lower than the hole edge 8 of the branch pipe hole 7 which communicates with the branch pipe hole 7, and the groove bottom 22 is made not to intersect with the branch pipe hole 7. Furthermore, one of the groove walls 23 following the groove bottom 22 is made continuous at the bottom position 20a of the delivery pipe hole 20 (FIG. 3), or at a position on the side where the branch pipe is formed beyond the bottom position 20a of the delivery pipe hole 20. It is connected to the delivery pipe hole 20 at 1120b (FIG. 4).
前記構成になる電磁式燃料噴射弁装置１において、燃料
とともにデリバリパイプ孔２０内に流入した異物Ｓに、
デリバリバイア孔２０内に沈み燃料の流れに従い移動す
るが、デリバリパイプ孔２０の底の位置２０ａに連続す
る溝壁２３、又はデリバリパイプ孔２０の底の位ｊｌ！
２０ ａを越える分岐管形成側の位置２０ｂで連続す
る溝壁２３に沿って溝２１の溝底２２へ沈む、溝底２２
に、デリバリパイプ孔２０内に連通する分岐管孔７の孔
縁８より低く、また分岐管孔７と交わらないから、−旦
溝底２２は沈んだ異物Ｓは分岐管孔７内に流入すること
なく、燃料の流動とともに順次下流側へ流れ、プレッシ
ャレギュレータ３内に流れ込み図示しないフューエルタ
ンクに戻される。In the electromagnetic fuel injection valve device 1 configured as described above, the foreign matter S that has flowed into the delivery pipe hole 20 together with the fuel,
It sinks into the delivery via hole 20 and moves according to the flow of fuel, but the groove wall 23 is continuous with the bottom position 20a of the delivery pipe hole 20, or the bottom position jl of the delivery pipe hole 20!
The groove bottom 22 sinks into the groove bottom 22 of the groove 21 along the continuous groove wall 23 at a position 20b on the branch pipe formation side exceeding 20a.
In addition, since it is lower than the hole edge 8 of the branch pipe hole 7 that communicates with the delivery pipe hole 20 and does not intersect with the branch pipe hole 7, the foreign matter S that has sunk in the groove bottom 22 flows into the branch pipe hole 7. The fuel flows sequentially to the downstream side along with the flow of fuel, flows into the pressure regulator 3, and is returned to a fuel tank (not shown).
「他の実施例」
第５図に、実施例１の他の実施例を示したもので、デリ
バリパイプ４の一側の下方に形成する斜め下向きの分岐
管６の中心軸線りを、その斜め角度のまま前記実施例１
の場合よりも上方に平行移動させて形成し、デリバリパ
イプ孔２０は連通する分岐管孔７の孔縁８を、デリバリ
パイプ孔２０の底の位置２０ａより上方に位置させる。"Other Embodiments" FIG. 5 shows another embodiment of the first embodiment, in which the central axis of the diagonally downward branch pipe 6 formed below one side of the delivery pipe 4 is Embodiment 1 with the same angle
The delivery pipe hole 20 is formed by being translated upward in parallel, and the hole edge 8 of the branch pipe hole 7 with which the delivery pipe hole 20 communicates is positioned above the bottom position 20a of the delivery pipe hole 20.
さらにその底の位置に清２１を形成すれば、該溝２１の
溝底２２へ沈んだ異物Ｓに、前記実施例と同様に分岐管
孔７内へ流入することなく燃料とともに下流側へ順次流
れる。この場合、デリバリパイプ孔２０の底の位Ｉｆ
２０ ａと分岐管孔７の孔縁８との高低差が十分あれば
、必ずしも溝２１を形成する必要はない。Furthermore, if a liquid 21 is formed at the bottom position of the groove 21, the foreign matter S that has sunk to the groove bottom 22 of the groove 21 will flow sequentially to the downstream side together with the fuel without flowing into the branch pipe hole 7 as in the previous embodiment. . In this case, the bottom position If of the delivery pipe hole 20
As long as there is a sufficient difference in height between the pipe hole 20a and the hole edge 8 of the branch pipe hole 7, it is not necessarily necessary to form the groove 21.
ｒ実施例２Ｊ
請求項２に記載した発明の実施例を添付図面第６．７図
仁１づいて説明する。Embodiment 2J An embodiment of the invention set forth in claim 2 will be described with reference to the accompanying drawings 6.7 and 1.
本実施例はおける電磁式燃料噴射弁２及びプレッシャレ
ギュレータ３とデリバリパイプ４との接続関係は実施例
１に記載したと同様である（第１図）が、デリバリパイ
プ４に形成する分岐管は真下に向けて形成してもよい、
また電磁式燃料噴射弁２の構成に、実施例１の場合と同
じである。In this embodiment, the connection relationship between the electromagnetic fuel injection valve 2, pressure regulator 3, and delivery pipe 4 is the same as that described in Embodiment 1 (Fig. 1), but the branch pipe formed in the delivery pipe 4 is It may be formed directly downward.
Further, the structure of the electromagnetic fuel injection valve 2 is the same as that of the first embodiment.
第６図に示すように、デリバリパイプ４に下向きに形成
した分岐管６″に電磁式燃料噴射弁２を嵌着する。この
基金電磁式燃料噴射弁２の弁本体１０の燃料流入口１１
にはフィルタを嵌着しないで、分岐管孔７°にメツシュ
材からなるフィルタ１７′を嵌着する。フィルタ１７″
の袋状のｒ通園１８°を、前記デリバリパイプ孔２０内
に突出させる。As shown in FIG. 6, the electromagnetic fuel injection valve 2 is fitted into the branch pipe 6'' formed downward in the delivery pipe 4.The fuel inlet 11 of the valve body 10 of the electromagnetic fuel injection valve 2
A filter 17' made of a mesh material is fitted into the branch pipe hole 7° without fitting a filter thereinto. Filter 17″
A bag-shaped r passage 18° is made to protrude into the delivery pipe hole 20.
前記のように構成した電磁式燃料噴射弁装置１′におい
て、燃料とともにデリバリパイプ孔２０内に流入した異
物Ｓに、デリバリパイプ孔２０内に沈み燃料の流れとと
もに移動する０分岐管孔７″の部分でに、ｎ物Ｓはフィ
ルタ１７’のろ過面１８′に遺られ、分岐管孔７′内に
流入することなく、該濾過面１８゛の脇を流れ、順次下
流側へ流れてプレッシャレギュレータ３内に流れ込み図
示しないフューエルタンクに戻される。In the electromagnetic fuel injection valve device 1' configured as described above, the foreign matter S that has flowed into the delivery pipe hole 20 together with the fuel is affected by the zero branch pipe hole 7'' that sinks into the delivery pipe hole 20 and moves with the flow of fuel. At this point, the n-substance S remains on the filtration surface 18' of the filter 17', flows beside the filtration surface 18' without flowing into the branch pipe hole 7', and sequentially flows downstream to the pressure regulator. 3 and is returned to a fuel tank (not shown).
また、デリバリパイプ４に分岐管６°を斜め下向きに形
成してもよく、この場合には前記実施例１と本実施例を
組合わせた態様の実施例とすることもでき、溝２１′に
よりフィルタ１７°で漉し取った異物Ｓをデリバリパイ
プ４から排出してフューエルタンクに戻すことができる
（第７図）。Further, the delivery pipe 4 may be formed with a branch pipe 6° diagonally downward. In this case, it is also possible to form an embodiment in which the above embodiment 1 and this embodiment are combined, and the groove 21' The foreign matter S filtered through the filter 17° can be discharged from the delivery pipe 4 and returned to the fuel tank (FIG. 7).
前記実施例では分岐管孔７゛内にフィルタ１７゛を嵌着
したから、弁本体１０にフィルタを嵌着するスペースを
形成する必要もなく、電磁式燃料噴射弁２の弁本体１０
の高さを低くして小型化が可能となる。In the embodiment described above, since the filter 17'' is fitted into the branch pipe hole 7'', there is no need to form a space for fitting the filter in the valve body 10, and the valve body 10 of the electromagnetic fuel injection valve 2
It is possible to reduce the size by lowering the height.
「発明の効果」
前記具体的手段及び作用の説明で明らかにしたように、
請求項１（記載された発明に、デリバリパイプに形成さ
れた分岐管の孔縁より低くかつ該分岐管孔と交わらない
溝底を有する清が、デリバリパイプ孔の片側で該デリバ
リパイプの全長に亘り形成され、溝底に続く一方の溝壁
をデリバリパイブ孔の底の位置若しくは核化の底の位置
を越える分岐管形成側の位置でデリバリパイプ孔は連続
させることにより、デリバリパイプ孔内に沈み燃料とと
もに流れる異物を、該溝壁に沿ってスムーズに溝底へ落
として分岐管内に流入しないようにし、燃料流動により
下流側へ流すことができ、また、請求項２に記載された
発明に、フィルタを分岐管に嵌着し、そのフィルタのｒ
通園をデリバリパイプ孔内に突出させ、デリバリパイプ
孔内で燃料とともに流れる異物を漉し取って、燃料流動
により下流側へ流すことができ、
共に従来のように分岐管内に異物が流入して、電磁式燃
料噴射弁に嵌着したフィルタ内に堆積し、燃料噴射弁の
噴射量特性に影響を与える不具合を解消することができ
る効果を有する。"Effects of the invention" As clarified in the explanation of the specific means and effects above,
Claim 1 (The described invention is characterized in that a groove having a groove bottom that is lower than the hole edge of the branch pipe formed in the delivery pipe and does not intersect with the branch pipe hole extends over the entire length of the delivery pipe on one side of the delivery pipe hole. By making the delivery pipe hole continuous at a position on the side where the branch pipe is formed beyond the position of the bottom of the delivery pipe hole or the position of the bottom of the nucleation, one groove wall that continues to the groove bottom is connected to the inside of the delivery pipe hole. The foreign matter flowing together with the sinking fuel can be smoothly dropped to the bottom of the groove along the groove wall to prevent it from flowing into the branch pipe, and can be caused to flow downstream by the fuel flow. , the filter is fitted into the branch pipe, and the r of the filter is
By protruding into the delivery pipe hole, the foreign matter flowing with the fuel inside the delivery pipe hole can be filtered out and flowed downstream by the flow of fuel. This has the effect of being able to eliminate problems that accumulate in the filter fitted to the fuel injection valve and affect the injection amount characteristics of the fuel injection valve.
断面図、第３，４図は漬２１の形状を示した断面図、第
５図は実施例１の他の実施例を示した断面図、第６図は
実施例２を示した断面図、第７図は同変形実施例を示し
た断面図である。3 and 4 are sectional views showing the shape of the pickle 21, FIG. 5 is a sectional view showing another embodiment of the first embodiment, and FIG. 6 is a sectional view showing the second embodiment. FIG. 7 is a sectional view showing the modified embodiment.
■２２．電磁式燃料噴射弁装置、 ２１６．電磁式燃料
噴射弁、 ４１．、デリバリパイプ、 ６，６°８．。■22. Electromagnetic fuel injection valve device, 216. Electromagnetic fuel injection valve, 41. , delivery pipe, 6,6°8. .
分岐管、 ７．７′１．１分岐管孔、 ８３１．孔縁、
２０ 、、、デリバリパイプ孔、 ２０ ａ 、、、底
の位置、２０ ｂ 、、、分岐管形成側の位置、 ２１
、、、清、２２、、、溝底、 ２３ 、、、溝壁、
１７’、、、フィルタ、 １８°００．濾過面、
Ｓ１２．異物。Branch pipe, 7.7'1.1 Branch pipe hole, 831. hole edge,
20, Delivery pipe hole, 20a, Bottom position, 20b, Branch pipe forming side position, 21
, , Kiyoshi , 22 , , Groove bottom , 23 , , Groove wall ,
17', filter, 18°00. filtration surface,
S12. Foreign object.
【図面の簡単な説明】
添付図面は本発明の各実施例を例示し、第１図は実施例
１の電磁式燃料噴射弁装置１の接続関係を示した概要側
面図、第２図は第１図１−１線切第５図
蔦３図
′７
第７ＦＡ[BRIEF DESCRIPTION OF THE DRAWINGS] The attached drawings illustrate each embodiment of the present invention, and FIG. 1 is a schematic side view showing the connection relationship of the electromagnetic fuel injection valve device 1 of the first embodiment, and FIG. 1 Figure 1-1 Line Cut Figure 5 Ivy Figure 3 '7 7th FA
Claims (2)
側に斜め下向きにエンジン気筒数分の分岐管を形成し、
該分岐管に電磁式燃料噴射弁を嵌着してなる電磁式燃料
噴射弁装置において、デリバリパイプ孔の下方の片側に
、デリバリパイプの全長に亘って溝を形成し、その溝底
が前記デリバリパイプ孔に連通する分岐管の孔縁よりも
低くかつ該分岐管孔と交わらないようにするとともに、
溝底に続く一方の溝壁をデリバリパイプ孔の底の位置で
、若しくは該デリバリパイプ孔の底の位置を越えた分岐
管形成側の位置でデリバリパイプ孔に連続させたことを
特徴とする電磁式燃料噴射弁装置。(1) Branch pipes for the number of engine cylinders are formed diagonally downward on one side below the delivery pipe arranged almost horizontally,
In an electromagnetic fuel injection valve device in which an electromagnetic fuel injection valve is fitted into the branch pipe, a groove is formed on one side of the lower side of the delivery pipe hole over the entire length of the delivery pipe, and the bottom of the groove is connected to the delivery pipe. Lower than the hole edge of the branch pipe communicating with the pipe hole and not intersecting with the branch pipe hole,
An electromagnetic device characterized in that one groove wall following the groove bottom is connected to the delivery pipe hole at the bottom position of the delivery pipe hole or at a position on the branch pipe forming side beyond the bottom position of the delivery pipe hole. type fuel injection valve device.
しくは斜め下向きにエンジン気筒数分の分岐管を形成し
、該分岐管に電磁式燃料噴射弁を嵌着してなる電磁式燃
料噴射弁装置において、前記分岐管にフィルタを嵌着し
、そのフィルタのろ過面をデリバリパイプ孔内に突出さ
せたことを特徴とする電磁式燃料噴射弁装置。(2) In an electromagnetic fuel injection valve device in which branch pipes for the number of engine cylinders are formed downward or diagonally downward in a delivery pipe arranged substantially horizontally, and an electromagnetic fuel injection valve is fitted into the branch pipes. . An electromagnetic fuel injection valve device, characterized in that a filter is fitted into the branch pipe, and a filtration surface of the filter projects into the delivery pipe hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1018677A JPH02199268A (en) | 1989-01-27 | 1989-01-27 | Electromagnetic fuel injection valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1018677A JPH02199268A (en) | 1989-01-27 | 1989-01-27 | Electromagnetic fuel injection valve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02199268A true JPH02199268A (en) | 1990-08-07 |
Family
ID=11978240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1018677A Pending JPH02199268A (en) | 1989-01-27 | 1989-01-27 | Electromagnetic fuel injection valve device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02199268A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10160079A (en) * | 1996-10-03 | 1998-06-16 | Usui Internatl Ind Co Ltd | Common rail |
-
1989
- 1989-01-27 JP JP1018677A patent/JPH02199268A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10160079A (en) * | 1996-10-03 | 1998-06-16 | Usui Internatl Ind Co Ltd | Common rail |
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