JPS6355362A - Fuel stop solenoid valve for fuel injection pump - Google Patents
Fuel stop solenoid valve for fuel injection pumpInfo
- Publication number
- JPS6355362A JPS6355362A JP19970686A JP19970686A JPS6355362A JP S6355362 A JPS6355362 A JP S6355362A JP 19970686 A JP19970686 A JP 19970686A JP 19970686 A JP19970686 A JP 19970686A JP S6355362 A JPS6355362 A JP S6355362A
- Authority
- JP
- Japan
- Prior art keywords
- movable core
- fuel
- guide barrel
- guide
- injection pump
- 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 36
- 238000002347 injection Methods 0.000 title claims description 7
- 239000007924 injection Substances 0.000 title claims description 7
- 239000000696 magnetic material Substances 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 30
- 229910052742 iron Inorganic materials 0.000 abstract description 15
- 230000000694 effects Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001179 sorption measurement Methods 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
- F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、分配型燃料噴射ポンプ等に用いられる燃料停
止弁に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fuel stop valve used in a distribution type fuel injection pump or the like.
ディーゼル機関の燃料噴射ポンプでは燃料を高圧に加圧
するためプランジャ型のポンプが用いられる。そして、
−関を停止する際には、プランジャポンプへの焼料の供
給を燃料停止電磁弁により連断するものが多１１７”Ｊ
’ Ｑ
栖６−はこれら従来の燃料停止電磁弁の代表的な例を示
す断面図である。A plunger type pump is used in a diesel engine fuel injection pump to pressurize fuel to high pressure. and,
-When stopping the engine, the fuel supply to the plunger pump is often interrupted by a fuel stop solenoid valve.
' Q 6- is a sectional view showing a typical example of these conventional fuel stop electromagnetic valves.
命におい゛で、１１ま固定コア、２はヨーク、３は０゛
リングＪ４は電磁コイル、５はスプリング、６ばＯリン
グ、７は可動コア、８はシリンダ、９は燃１４供給ａｌ
Ｊ１ ｏ は吸入ボー ）、ｌｌｌｔｅＩＭ、１２は円
筒形状のガイドバレル、１３はポンププランジャ室であ
る。11 is the fixed core, 2 is the yoke, 3 is the 0 ring J4 is the electromagnetic coil, 5 is the spring, 6 is the O-ring, 7 is the movable core, 8 is the cylinder, 9 is the fuel 14 supply al
12 is a cylindrical guide barrel, and 13 is a pump plunger chamber.
この電磁弁は、シリンダ８に設けられた燃料供給通路９
と、図示しないポンププランジャが往復し燃料の加圧が
行なわれるボンブブランクヤ室１３とを連通する吸入ボ
ー）１０を、可動フ７７にて開閉する０円柱形状の可動
コア７はその案内部７ｂが円筒形状のガイドバレル１３
に摺動自在に表挿され、中心軸方向に摺動自在である。This solenoid valve is connected to a fuel supply passage 9 provided in the cylinder 8.
The cylindrical movable core 7 opens and closes the suction bow 10, which communicates with the bomb blanking chamber 13 in which a pump plunger (not shown) reciprocates and pressurizes fuel, with a movable shaft 77. is a cylindrical guide barrel 13
It is slidably inserted into the center and is slidable in the direction of the central axis.
また、可動コア７はスプリング５により図面下方に付勢
されており、非励磁時には図示の様に可動コア７が弁座
１１に押し付けられ吸入ボート１０が閉じた状態になる
。一方、電磁コイル４に通電されると、固定コア１及び
ヨーク２が磁路を構成し、磁性体で形成された可動コア
７を磁力によりスプリング５に抗して引き上げ、吸入ボ
ート１０を開放して燃料供給通路９とポンププランジャ
室１３とを連通する。Further, the movable core 7 is urged downward in the drawing by a spring 5, and when not energized, the movable core 7 is pressed against the valve seat 11 as shown in the figure, and the suction boat 10 is in a closed state. On the other hand, when the electromagnetic coil 4 is energized, the fixed core 1 and the yoke 2 form a magnetic path, and the movable core 7 made of a magnetic material is pulled up against the spring 5 by magnetic force, and the suction boat 10 is opened. The fuel supply passage 9 and the pump plunger chamber 13 are communicated with each other.
ところで、このような従来の燃料停止電磁弁においては
、可動コア７の摺動不良が発生することがあるという不
具合があった。エンクンの運松中に摺動不良が発生した
場合にはキースイッチをｑつでも燃料が遮断されないた
めエンノンが直ちに停止しないという不兵舎が生ずるし
、エンクンを始動しようとするときに摺動不良が発生し
た場合にはクラン斗ングをしても燃料が充分に供給され
ないためエンジンが始動しないという不具合を生ずる。However, such a conventional fuel stop electromagnetic valve has a problem in that the movable core 7 may slide poorly. If a sliding problem occurs while driving the Enkun, the fuel will not be shut off even if the key switch is pressed, resulting in a problem where the Ennon will not stop immediately, and a sliding problem will occur when trying to start the Enkun. In this case, even if the engine is cranked, sufficient fuel will not be supplied, resulting in a problem that the engine will not start.
可動コアの摺動不良が発生する原因は、１９！械加工時
の切粉と考えられる微小鉄片が、励磁され磁性を帯びた
可動コア７に吸引され、可動コア７の突出部７ａとシリ
ンダ側面８ａとの間隙あるいはガイドバレル１２と可動
コア７の案内部７ｂとの間隙に異物としでかみこむため
であることが判明している。There are 19 reasons why sliding defects occur in the movable core! Small pieces of iron, which are thought to be chips during machining, are attracted to the excited and magnetized movable core 7, and the gap between the protrusion 7a of the movable core 7 and the cylinder side surface 8a or the guide barrel 12 and the guide between the movable core 7. It has been found that this is due to the foreign matter getting stuck in the gap between the part 7b and the part 7b.
そこで、出願人は可動コア７の突出部７ａをなくし、可
動コア７とシリンダ側面８ａとの間隙を大きくシｒ−燃
料停止電磁弁を提案した（実開昭６０−２４８７８号）
、また、この中で、可動コア７の案内部７ｂの断面形状
を六角形とする二とが可動コア７とガイドバレル１２と
の間隙に鉄片がかみこむことを防止する上で効果的であ
ることを提案した。Therefore, the applicant proposed a cylinder fuel stop solenoid valve in which the protrusion 7a of the movable core 7 was eliminated and the gap between the movable core 7 and the cylinder side surface 8a was increased (Utility Model Application No. 60-24878).
In addition, among these, it is effective to make the cross-sectional shape of the guide portion 7b of the movable core 7 hexagonal in order to prevent the iron piece from getting caught in the gap between the movable core 7 and the guide barrel 12. I suggested that.
第７図はこの燃料停止電磁弁を示す断面図であり、第８
図は第７図の■−■断面で見た可動コア及びガイドバレ
ルを示したものである。FIG. 7 is a sectional view showing this fuel stop solenoid valve, and FIG.
The figure shows the movable core and guide barrel taken along the line 1--2 in FIG. 7.
この電磁弁では、可動コア７の案内部７ｂは断面が６角
形の６角柱状をなし、その６つの角縁７Ｃが円筒形状の
ガイドバレル１２の内周に摺接し中心軸方向に案内され
る。それ故、可動コア案内部７ｂの側面とガイドバレル
１２の内周面との間に充分な間隙を確保することができ
、間隙に微小鉄片がかみこむことを防止できると期待さ
れた。In this electromagnetic valve, the guide portion 7b of the movable core 7 has a hexagonal column shape with a hexagonal cross section, and its six corner edges 7C slide on the inner circumference of the cylindrical guide barrel 12 and are guided in the central axis direction. . Therefore, it was expected that a sufficient gap could be secured between the side surface of the movable core guide portion 7b and the inner circumferential surface of the guide barrel 12, and that it would be possible to prevent minute pieces of iron from getting caught in the gap.
しかし、実際に使用した結果、可動コア７とガイドバレ
ル１２との間隙に微小鉄片がかみ込む不具合は大幅に低
減されたものの、なお、微小鉄片がかみ込み、摺動不良
を引き起すことがあるという問題点が判明した。調査の
結果、７可動コア７の案内部７ｂを角柱としたため、そ
の角縁７ｃに漏洩磁束が集中し、ガイドバレル１２と摺
接する角縁部７＠にかえって微小鉄片が吸着されやすい
ことがｉ因であることを見出した。However, as a result of actual use, although the problem of small pieces of iron getting caught in the gap between the movable core 7 and the guide barrel 12 has been significantly reduced, there are still cases where small pieces of iron get caught and cause sliding defects. The problem was discovered. As a result of the investigation, it was found that since the guide part 7b of the movable core 7 is made of a square column, leakage magnetic flux concentrates on the corner edge 7c, and minute pieces of iron are likely to be attracted to the corner edge 7@ which makes sliding contact with the guide barrel 12. We found that this was the cause.
本発明は、上記の問題点を解決するためなされたもので
あり、ガイドバレルと可動フ７の間隙への異物のかみ込
みの可能性を激減させることがでｌき、可動コアの摺動
不良が発生せず信頼性の高い燃料停止電磁弁を提供する
ことを目的とする。The present invention has been made in order to solve the above problems, and can drastically reduce the possibility of foreign matter getting caught in the gap between the guide barrel and the movable core 7, and prevent sliding defects of the movable core. The purpose of the present invention is to provide a highly reliable fuel stop solenoid valve that does not generate fuel.
このため本発明では、電磁コイルへの通電を断続するこ
とによりシリンダ内において磁性体で形成された可動コ
アを中心軸方向に移動させて燃料供給通路の連通を断続
する燃料噴射ポンプの燃料停止電磁弁において、前記可
動コアの断面形状は滑らかな略円形状をなし、前記可動
：＋７を中心軸方向に案内するガイドバレルは、非磁性
体で形成され、その内周面の一部に設けられた突出部の
みが前記可動コアの側面に摺接することを特徴とする燃
料噴射ポンプの燃料停止電磁弁が提供される。For this reason, in the present invention, the fuel stop electromagnetic coil of the fuel injection pump is configured to move the movable core made of a magnetic material in the cylinder in the central axis direction by intermittent energization to the electromagnetic coil, and to disconnect the communication of the fuel supply passage. In the valve, the movable core has a smooth substantially circular cross-sectional shape, and the guide barrel that guides the movable core in the central axis direction is formed of a non-magnetic material and is provided on a part of the inner circumferential surface of the guide barrel. There is provided a fuel stop electromagnetic valve for a fuel injection pump, characterized in that only the protruding portion is in sliding contact with the side surface of the movable core.
上記の構成によれば、可動コアの断面形状は滑らかな略
円形状をなし、角部がないから漏えい磁束が集中する箇
所がなく、微小鉄片を吸引する磁力が弱くなる。それ故
、可動コアの側周に吸着される微小鉄片の大きさ、１を
共に最小限とすることができる。また、ガイドバレルは
非磁性体で形成され、上記漏えい磁束の分布にほとんど
影響を与えない。According to the above configuration, the cross-sectional shape of the movable core is smooth and approximately circular, and since there are no corners, there is no place where leakage magnetic flux is concentrated, and the magnetic force that attracts the minute iron pieces is weakened. Therefore, the size of the minute iron pieces adsorbed to the side periphery of the movable core can both be minimized. Furthermore, the guide barrel is made of a non-magnetic material and has little effect on the distribution of the leakage magnetic flux.
そして、ガイドバレルの内周面の一部に設けられた突出
部のみが可動コアの側面に摺接し可動フ７を案内するか
ら、可動コアとガイドバレルとの接触面積が極度に小さ
く、また、可動コア側面に吸着される微小鉄片が極く小
さく微量であることとあいまって、微小鉄片のかみ込み
による可動コアの摺動不良を激減させることができる。Since only the protrusion provided on a part of the inner circumferential surface of the guide barrel slides against the side surface of the movable core and guides the movable flap 7, the contact area between the movable core and the guide barrel is extremely small. Coupled with the fact that the minute iron pieces adsorbed to the side surface of the movable core are extremely small and in minute amounts, it is possible to drastically reduce sliding defects of the movable core due to biting of the minute iron pieces.
第１図は本発明の第１の実施例を示す燃料停止電磁弁の
断面図である。FIG. 1 is a sectional view of a fuel stop solenoid valve showing a first embodiment of the present invention.
図において、１は固定コア、２はヨーク、３は０リング
、４は電磁コイル、５はスプリング、６は０リング、７
は可動コア、８はシリンダ、９は燃料供給通路、１０は
吸入ボート、１１は弁座、１２は円筒形状のガイドバレ
ル、１３はポンププランジャ呈である。従来の電磁弁と
の相違点を明確にするため、ガイドバレル１２及び可動
コア７の部分のみを第２図に示し、その■−■線断面図
を第３図に示す。In the figure, 1 is a fixed core, 2 is a yoke, 3 is an O-ring, 4 is an electromagnetic coil, 5 is a spring, 6 is an O-ring, and 7
1 is a movable core, 8 is a cylinder, 9 is a fuel supply passage, 10 is a suction boat, 11 is a valve seat, 12 is a cylindrical guide barrel, and 13 is a pump plunger. In order to clarify the differences from conventional solenoid valves, only the guide barrel 12 and movable core 7 are shown in FIG. 2, and a cross-sectional view taken along the line ■-■ is shown in FIG.
可動コア７の案内部７ｂは従来（第８図）のように６角
柱ではなく、断面が円形をした円柱状をなしている。可
動コア７を軸方向に案内すゐ円柱状のガイドバレル１２
は、非磁性体である貧銅で形成され、その内周面に８個
の突出部２１を有している。この突出部２１のみが可動
コア案内部７ｂの側面に摺接する。可動コア案内部７ｂ
の上方及び下方はそれぞれ４個ずつの突出部２１で支承
され、軸方向に摺動自在に案内される。可動コア７は８
個の突出ＷＳ２１による点接触により支承案内されてい
るといえる。The guide portion 7b of the movable core 7 is not a hexagonal prism as in the conventional example (FIG. 8), but has a cylindrical shape with a circular cross section. A cylindrical guide barrel 12 that guides the movable core 7 in the axial direction.
is made of poor copper, which is a non-magnetic material, and has eight protrusions 21 on its inner peripheral surface. Only this protruding portion 21 comes into sliding contact with the side surface of the movable core guide portion 7b. Movable core guide section 7b
The upper and lower parts are each supported by four protrusions 21 and are slidably guided in the axial direction. Movable core 7 is 8
It can be said that support and guidance are provided by point contact by the protrusions WS21.
このため、円柱状の可動コア案内部７ｂの側面と、円柱
状のガイドバレル１２の内周面との間隙２２を充分確保
することができ、微小鉄片がこの間隙２２に詰ったり、
かみ込んだりすることを回避することができる。Therefore, it is possible to secure a sufficient gap 22 between the side surface of the cylindrical movable core guide portion 7b and the inner circumferential surface of the cylindrical guide barrel 12, and prevent minute iron pieces from clogging this gap 22.
You can avoid biting.
また、可動コア７の摺動に従い可動コア案内部７ｂに吸
着された微小鉄片がガイドバレル１２の突出部２１に衝
突することがあっても、可動コア案内部７ｂの側面のう
ち突出部２１に摺接する箇所の吸着力（磁力）が他の箇
所に比べて特に強いことはないから、微小鉄片は突出部
２１にはじき飛ばされ間隙２２に移動する場合がほとん
どであり、突出部２１と案内部７ｂとの間にかみ込む不
具合はほとんど発生しない。Furthermore, even if a minute piece of iron adsorbed to the movable core guide part 7b as the movable core 7 slides collides with the protrusion 21 of the guide barrel 12, the protrusion 21 of the side surface of the movable core guide part 7b may Since the adsorption force (magnetic force) at the sliding contact point is not particularly strong compared to other points, in most cases the minute iron piece is repelled by the protrusion 21 and moves to the gap 22, and the protrusion 21 and the guide part 7b There are almost no problems that occur between the two.
また、本実施例は第６図及び第７図に示す従来例から可
動ニア７７及びガイドバレル１２の形状を変更するのみ
でよ（、簡単な構造変更で実用的に大きな効果を得るこ
とができるという利息がある。In addition, this embodiment requires only changing the shapes of the movable near 77 and the guide barrel 12 from the conventional example shown in FIGS. 6 and 7 (a simple structural change can bring about a great practical effect) There is interest.
前記実施例では８個の突起状の突出＄２１により可動コ
ア７の案内部７ｂ上下を支承するものとしたが、突出部
の形状には種々のものが考えられる。In the embodiment described above, the upper and lower guide portions 7b of the movable core 7 are supported by eight protrusions $21, but various shapes of the protrusions can be considered.
第４図は！＃２の実施例を示す要部断面図であり、第５
図は第４図の■−Ｖ線断面図である。Figure 4 is! It is a main part sectional view showing the example #2, and the fifth
The figure is a cross-sectional view taken along the line ■-V in FIG. 4.
ここでは、可動コア７の形状は前記実施例と同じである
が、ガイドバレル１２の内周面に設けら八た突出部２３
が突起状ではなく、軸方向に走る線状をなしている。そ
して、４本の線状の突出部２３が可動コア７の案内部７
ｂの側面に摺接し、可動コア７を軸方向に案内する。突
出部２３が軸方向に設けられているから、案内部７ｂの
側面のうち突出ｎ２３に摺接する箇所の面積は非常に、
小さく、異物をかみ込む虞れは極く小さい。また、ガイ
ドバレル１２の内周面と可動コア案内部７ｂの側面との
間に充分な間隙２４を確保できること ゛は前記
実施例と同様である。Here, the shape of the movable core 7 is the same as in the previous embodiment, but a protrusion 23 is provided on the inner peripheral surface of the guide barrel 12.
is not a protrusion, but a line running in the axial direction. The four linear protrusions 23 are the guide portions 7 of the movable core 7.
It comes into sliding contact with the side surface of b and guides the movable core 7 in the axial direction. Since the protrusion 23 is provided in the axial direction, the area of the side surface of the guide portion 7b that comes into sliding contact with the protrusion n23 is very large.
It is small and the risk of biting into foreign objects is extremely small. Further, it is possible to secure a sufficient gap 24 between the inner circumferential surface of the guide barrel 12 and the side surface of the movable core guide portion 7b, as in the previous embodiment.
以上説明したように本発明は上記の６１戊を有し、非磁
性体で形成されたガイドバレルの突出部のみが可動コア
の滑らかな側面に摺接し案内するものであるから、可動
コアとガイドバレル内周面との間隙を充分確保しつつ漏
えい磁束の簗中を避けることができ、異物である微小鉄
片が間隙にかみ込むことを避けることができる。それ故
、〃イドパレルと可動コアの間隙への異物のかみ込みに
よる摺動不良なＷ！１滅させることができ、簡単な構成
で信頼性の高い燃料停止電磁弁を提供゛ｒることができ
るという優れた効果がある。As explained above, the present invention has the above-mentioned 61 points, and since only the protrusion of the guide barrel made of a non-magnetic material slides into contact with the smooth side surface of the movable core and guides it, the movable core and the guide While ensuring a sufficient gap with the inner peripheral surface of the barrel, it is possible to prevent leakage magnetic flux from entering the gap, and it is possible to prevent foreign particles, such as minute pieces of iron, from getting caught in the gap. Therefore, there is poor sliding due to foreign matter getting caught in the gap between the idle parallel and the movable core! This has the excellent effect of providing a highly reliable fuel stop solenoid valve with a simple configuration.
第１ｒＸＪ乃至１５図は本発明の燃料停止電磁弁の実施
例を示し、第１図は第１の実施例を示す断面図、第２図
は第１図の要部を示す断面図、第３図は１５２図のｍ−
ｍｍ断面図、１４図はｔｊＳ２の実施例を示す要部断面
図、ｔＩＳ５図は第４図の■−ｖ線断面図であり、ｆＩ
Ｓ６図乃至第８図は従来例を示し、第６図は第１の従来
例の断面図、第７図は第２の従来例の側面図、ｔｊＳ８
図は第７図の■−■線断面図である。
４・・・電磁コイル、７・・・可動フ７．７ｂ・・・案
内部、８・−・シリンダ、９・・・燃料供給通路、１２
・・・〃イドバレル、２１・・・突出部、２２・・・間
隙、２３・・・突出部、２４・・・間隙、 ′
第１図
第２図
第３配
第４図
第６０
第７ｒ２
第８図1rXJ to 15 show embodiments of the fuel stop solenoid valve of the present invention, FIG. 1 is a sectional view showing the first embodiment, FIG. 2 is a sectional view showing the main part of FIG. The figure is m- in figure 152.
mm sectional view, Figure 14 is a sectional view of the main part showing the embodiment of tjS2, tIS5 is a sectional view taken along the ■-v line in Figure 4, and fI
S6 to S8 show conventional examples, FIG. 6 is a sectional view of the first conventional example, and FIG. 7 is a side view of the second conventional example, tjS8
The figure is a sectional view taken along the line ■--■ in FIG. 4... Electromagnetic coil, 7... Movable flap 7.7b... Guide portion, 8... Cylinder, 9... Fuel supply passage, 12
...Ide barrel, 21...Protrusion, 22...Gap, 23...Protrusion, 24...Gap,' Figure 1 Figure 2 Figure 3 Distribution Figure 4 Figure 60 7r2 Figure 8
Claims (1)
おいて磁性体で形成された可動コアを中心軸方向に移動
させて燃料供給通路の連通を断続する燃料噴射ポンプの
燃料停止電磁弁において、前記可動コアの断面形状は滑
らかな略円形状をなし、 前記可動コアを中心軸方向に案内するガイドバレルは、
非磁性体で形成され、その内周面の一部に設けられた突
出部のみが前記可動コアの側面に摺接することを特徴と
する燃料噴射ポンプの燃料停止電磁弁。[Claims] A fuel stop electromagnetic device for a fuel injection pump that moves a movable core made of a magnetic material in a cylinder in the direction of a central axis by intermittent energization to an electromagnetic coil, thereby intermittent communication of a fuel supply passage. In the valve, the movable core has a smooth, substantially circular cross-sectional shape, and the guide barrel that guides the movable core in the central axis direction includes:
1. A fuel stop electromagnetic valve for a fuel injection pump, characterized in that it is made of a non-magnetic material and only a protrusion provided on a part of an inner peripheral surface of the valve is in sliding contact with a side surface of the movable core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19970686A JPS6355362A (en) | 1986-08-26 | 1986-08-26 | Fuel stop solenoid valve for fuel injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19970686A JPS6355362A (en) | 1986-08-26 | 1986-08-26 | Fuel stop solenoid valve for fuel injection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6355362A true JPS6355362A (en) | 1988-03-09 |
Family
ID=16412254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19970686A Pending JPS6355362A (en) | 1986-08-26 | 1986-08-26 | Fuel stop solenoid valve for fuel injection pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6355362A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012112259A (en) * | 2010-11-22 | 2012-06-14 | Denso Corp | Injector |
-
1986
- 1986-08-26 JP JP19970686A patent/JPS6355362A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012112259A (en) * | 2010-11-22 | 2012-06-14 | Denso Corp | Injector |
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