JPH08200183A - Fuel injection valve for internal combustion engine - Google Patents
Fuel injection valve for internal combustion engineInfo
- Publication number
- JPH08200183A JPH08200183A JP2736995A JP2736995A JPH08200183A JP H08200183 A JPH08200183 A JP H08200183A JP 2736995 A JP2736995 A JP 2736995A JP 2736995 A JP2736995 A JP 2736995A JP H08200183 A JPH08200183 A JP H08200183A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- fuel injection
- needle valve
- valve
- fuel oil
- 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.)
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- Fuel-Injection Apparatus (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はシリンダ内へ直接燃料を
噴射投入する内燃機関の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 for an internal combustion engine which directly injects fuel into a cylinder.
【０００２】[0002]
【従来の技術】舶用大型ディーゼル機関や発電プラント
用ディーゼル機関では、燃料油管のエア抜きのため、機
関起動スタンバイ時、燃料油を燃料噴射弁内へ循環させ
ている。また低質で非常に粘度の高いＣ重油等を燃料に
使用する機関では、燃料を高温に加熱して使用するが、
この場合燃料噴射部での燃料油の冷却油温が粘度保持の
点で問題となるためと、燃料噴射弁の冷却と燃焼室廻り
の燃焼ガスを硫酸析出温度以上に保持するため上記機関
スタンバイ時と同様に一定温度の燃料油を燃料噴射弁内
へ循環させる必要がある。2. Description of the Related Art In a large-scale marine diesel engine and a diesel engine for power generation plants, fuel oil is circulated into a fuel injection valve during engine startup standby in order to remove air from the fuel oil pipe. Also, in an engine that uses low-quality, very high-viscosity C fuel oil or the like as a fuel, the fuel is heated to a high temperature before use.
In this case, the cooling oil temperature of the fuel oil in the fuel injection part becomes a problem in terms of maintaining viscosity, and the cooling of the fuel injection valve and the combustion gas around the combustion chamber are maintained at the sulfuric acid precipitation temperature or higher. Similarly, it is necessary to circulate fuel oil having a constant temperature into the fuel injection valve.
【０００３】従来、この燃料循環のための操作は、機関
の運転員が機関始動前に手動で循環径路２０へ燃料油を
送油するが、図４に示すような循環燃料制御弁１０１を
備えた燃料弁により自動的に行われている。図４に循環
制御弁を備えた従来の燃料噴射弁を示す。なお図１は通
常の燃料送油管径路図である。Conventionally, in the operation for this fuel circulation, an engine operator manually feeds the fuel oil to the circulation path 20 before the engine is started, but it is equipped with a circulating fuel control valve 101 as shown in FIG. It is done automatically by the fuel valve. FIG. 4 shows a conventional fuel injection valve having a circulation control valve. Note that FIG. 1 is a normal fuel oil supply pipe path diagram.
【０００４】図１において、送油管４をへて送油され、
燃料油は燃料送油ポンプ５により加圧され、燃料噴射ポ
ンプ６へ供給されるとともに、燃料高圧噴射管２を通っ
て燃料噴射弁１に供給され、燃料噴射弁１内の循環径路
を通って循環燃料油戻り油路３より図示しない燃料タン
クへ戻される。In FIG. 1, oil is fed through the oil feed pipe 4,
The fuel oil is pressurized by the fuel oil feed pump 5, supplied to the fuel injection pump 6, supplied to the fuel injection valve 1 through the high-pressure fuel injection pipe 2, and passed through the circulation path in the fuel injection valve 1. It is returned from the circulating fuel oil return oil passage 3 to a fuel tank (not shown).
【０００５】次に図４に示す循環燃料油制御弁１０１を
備えた従来の燃料噴射弁について説明する。燃料油はま
ず循環燃料油制御弁（以下循環弁と称す）へ供給され
る。循環弁１０１は針弁１０２と針弁押えばね１０３と
で構成されている。Next, a conventional fuel injection valve having the circulating fuel oil control valve 101 shown in FIG. 4 will be described. Fuel oil is first supplied to a circulating fuel oil control valve (hereinafter referred to as a circulation valve). The circulation valve 101 is composed of a needle valve 102 and a needle valve pressing spring 103.
【０００６】又針弁押えばね１０３は、燃料油の圧力が
燃料送油用ポンプ５の吐出圧力より高い場合のみ、針弁
１０２が開くようなばね力となっている。よって運転ス
タンバイ時等には、燃料油は循環弁１０１より燃料油循
環係路２０を通り燃料噴射弁１内を循環して循環燃料油
戻り管３へ排出される。The needle valve pressing spring 103 has such a spring force that the needle valve 102 opens only when the pressure of the fuel oil is higher than the discharge pressure of the fuel oil feeding pump 5. Therefore, at the time of operation standby, the fuel oil is circulated through the fuel oil circulation passage 20 from the circulation valve 101, circulated in the fuel injection valve 1, and discharged to the circulation fuel oil return pipe 3.
【０００７】[0007]
【発明が解決しようとする課題】ところが、燃料噴射弁
内の燃料油循環を自動的に行わせるためには、従来例で
は前記のとおり循環弁１０１が必要となるが、該循環弁
は燃料噴射ポンプ６と燃料弁１の中間の燃料油高圧供給
径路３０内に設置されているため、燃料噴射ポンプ６の
作動時（燃料噴射時）は約１０００ｋｇ／ｃｍ2 前後の
高圧力の条件下の作動となり、部品強度の面から非常に
高強度の設計が要求され、予想以上に大型のものとなるHowever, in order to automatically perform the fuel oil circulation in the fuel injection valve, the conventional example requires the circulation valve 101 as described above, but the circulation valve 101 is used for fuel injection. Since it is installed in the fuel oil high-pressure supply path 30 between the pump 6 and the fuel valve 1, the fuel injection pump 6 operates (at the time of fuel injection) under a high pressure condition of about 1000 kg / cm 2. Therefore, a very high strength design is required from the viewpoint of component strength, and it becomes larger than expected.
【０００８】さらに機関への燃料噴射量に影響を与えて
はならないという制約より、燃料油通路面積を確保する
ため、機関の高出力化に伴い、燃料循環では何ら問題が
ないにも拘らず、燃料油通路面積確保の点から循環弁１
０１のさらなる大型化が必要となる。一方高速回転化が
必要とされる機関では、循環弁部での流路障害が問題と
なり、噴射遅れを発生させる原因ともなりうる。Further, in order to secure the fuel oil passage area due to the restriction that the amount of fuel injected into the engine should not be affected, there is no problem in fuel circulation with the increase in output of the engine, Circulation valve 1 to secure the fuel oil passage area
01 is required to be further enlarged. On the other hand, in an engine that requires high-speed rotation, a flow path obstacle in the circulation valve part becomes a problem, which may cause an injection delay.
【０００９】本発明の目的は、従来例における循環弁１
０１が廃止できるため、燃料噴射弁高圧部の構造が単純
化され、信頼性が大幅に向上し、重量低減とコンパクト
化が可能となる内燃機関の燃料噴射弁を提供するにあ
る。An object of the present invention is to provide a circulation valve 1 in a conventional example.
Since 01 can be eliminated, the structure of the high-pressure portion of the fuel injection valve is simplified, the reliability is significantly improved, and the fuel injection valve of the internal combustion engine that can be reduced in weight and size is provided.
【００１０】[0010]
【課題を解決するための手段】第１発明に係る内燃機関
の燃料噴射弁は、燃料噴射弁内の燃料油循環用として燃
料油が送油用ポンプ５から燃料噴射ポンプ６、燃料高圧
噴射管２を通って燃料噴射弁１へ常に供給される燃料油
供給システムにおいて、燃料高圧供給路３０と針弁部の
油溜り室４０が連通され、該油溜り室と燃料油循環径路
２０が連通されるとともに、針弁１１へ針弁押えばね１
３のばね力を伝えている針弁押し棒１２に燃料油通路２
１を設け、該燃料油通路２１が前記燃料油循環径路２０
と前記針弁押えぼねのばね室２３とを連通し、該ばね室
２３が循環燃料戻り管３と連通していることを特徴とし
ている。A fuel injection valve for an internal combustion engine according to a first aspect of the present invention comprises a fuel injection pump 5, a fuel injection pump 6, and a fuel high-pressure injection pipe for fuel oil circulation in the fuel injection valve. In the fuel oil supply system which is always supplied to the fuel injection valve 1 through the fuel injection valve 1, the high-pressure fuel supply passage 30 and the oil reservoir chamber 40 of the needle valve portion communicate with each other, and the oil reservoir chamber and the fuel oil circulation passage 20 communicate with each other. And the needle valve retainer spring 1 to the needle valve 11.
The fuel oil passage 2 to the needle valve push rod 12 transmitting the spring force of 3
1, and the fuel oil passage 21 is connected to the fuel oil circulation passage 20.
Is communicated with the spring chamber 23 of the needle valve retainer and the spring chamber 23 is communicated with the circulating fuel return pipe 3.
【００１１】第２発明に係る内燃機関の燃料噴射弁は、
第１発明記載の発明において、燃料高圧供給路３０に対
し燃料循環径路２０の通路面積を、一部又は通路全体に
わたって小さくしたことを特徴としている。A fuel injection valve for an internal combustion engine according to the second invention is
In the invention described in the first aspect of the invention, the passage area of the fuel circulation passage 20 with respect to the high-pressure fuel supply passage 30 is reduced over a part or the entire passage.
【００１２】第３発明に係る内燃機関の燃料噴射弁は、
第１及び第２発明記載の発明において、燃料噴射ポンプ
の作動により高圧の燃料油が燃料噴射弁内に供給される
時、その供給圧力によって針弁が針弁押えばね１３のば
ね力に打ち勝ってリフトし、噴孔より燃料油が機関内へ
噴射供給される燃料噴射弁において、針弁リフト時、針
弁押し棒テーパ加工部５１と燃料噴射弁本体テーパ加工
部５０が面当りして接触することで針弁リフト量を制限
し、さらに針弁押し棒１２に設けられた燃料油通路の一
方の開口部が針弁押し棒テーパ加工部５１と燃料噴射弁
本体テーパ加工部５０の面当り接触により閉ざされ、燃
料油循環径路２０と針弁押えばねのばね室２３との連通
が断たれることを特徴としている。A fuel injection valve for an internal combustion engine according to the third invention is
In the inventions described in the first and second inventions, when high-pressure fuel oil is supplied into the fuel injection valve by the operation of the fuel injection pump, the supply pressure causes the needle valve to overcome the spring force of the needle valve pressing spring 13. In a fuel injection valve that is lifted and fuel oil is injected and supplied from the injection hole into the engine, the needle valve push rod taper processing portion 51 and the fuel injection valve main body taper processing portion 50 come into surface contact with each other during needle valve lift. Therefore, the needle valve lift amount is limited, and one opening of the fuel oil passage provided in the needle valve push rod 12 makes surface contact between the needle valve push rod tapered portion 51 and the fuel injection valve main body tapered portion 50. It is characterized in that the fuel oil circulation path 20 and the spring chamber 23 of the needle valve pressing spring are disconnected from each other.
【００１３】[0013]
【作用】機関の始動スタンバイ時、燃料送油用ポンプ５
で燃料噴射弁１内の燃料高圧供給路３０へ送油供給され
た燃料油は針弁部の燃料油溜り４０−燃料油循環径路２
０−針弁押し棒１２内の燃料油通路２１−針弁押えばね
のばね室２３−循環燃料油戻り管３をへて燃料弁本体１
ａより外へ排出され燃料タンクへ戻される。[Function] When the engine is on standby, the fuel oil pump 5
The fuel oil fed to the high-pressure fuel supply passage 30 in the fuel injection valve 1 by means of is the fuel oil reservoir 40 of the needle valve portion-the fuel oil circulation passage 2
0-fuel oil passage 21 in the needle valve push rod 12-spring chamber 23 of the needle valve pressing spring-circulating fuel oil return pipe 3 through the fuel valve body 1
It is discharged from a and returned to the fuel tank.
【００１４】機関運転中は非常に高圧の燃料油が短時間
に燃料高圧供給径路３０を介して針弁部１１の燃料溜り
４０へ供給される。この時燃料油は燃料循環径路２０の
方向へ行こうとするが、燃料高圧供給路３０より燃料油
循環径路２０の方が小さい口径に設定されているので、
針弁部の油溜り４０の圧力上昇が速く、この圧力により
針弁１１がリフトし燃料油が機関内へ噴射される。During operation of the engine, very high pressure fuel oil is supplied to the fuel reservoir 40 of the needle valve portion 11 through the high fuel pressure supply passage 30 in a short time. At this time, the fuel oil tries to go in the direction of the fuel circulation path 20, but since the fuel oil circulation path 20 is set to have a smaller diameter than the fuel high pressure supply path 30,
The pressure of the oil sump 40 in the needle valve portion rises quickly, and this pressure lifts the needle valve 11 to inject fuel oil into the engine.
【００１５】この時、燃料油循環径路２０は針弁押し棒
１２のテーパ加工部５１と燃料噴射弁本体１ａのテーパ
加工部５０が面当りにより針弁押えばねのばね室２３及
び循環燃料油戻り管３との連通が断たれ、針弁の油溜り
室４０の油圧が急上昇し、燃料油をシリンダ内に高圧で
噴射する。At this time, in the fuel oil circulation path 20, the tapered portion 51 of the needle valve pushing rod 12 and the tapered portion 50 of the fuel injection valve main body 1a come into surface contact with each other, and the spring chamber 23 of the needle valve pressing spring and the circulating fuel oil return. The communication with the pipe 3 is cut off, the oil pressure in the oil reservoir 40 of the needle valve rises sharply, and fuel oil is injected into the cylinder at high pressure.
【００１６】[0016]
【実施例】以下図１〜３を参照し本発明の実施例につい
て説明する。図１は従来の燃料送油管径路図であるが、
本実施例のものにおいても同一であるので従来例と同一
図、同付番にて説明する。図２は燃料油循環時の燃料噴
射弁内の状態図、図３は燃料噴射時の燃料噴射内の状態
図を示す。EXAMPLES Examples of the present invention will be described below with reference to FIGS. FIG. 1 is a conventional fuel oil pipe path diagram,
Since the same thing is applied to the present embodiment, it will be explained with the same drawings and the same numbering as the conventional example. FIG. 2 is a state diagram inside the fuel injection valve during fuel oil circulation, and FIG. 3 is a state diagram inside the fuel injection during fuel injection.
【００１７】図１〜２において機関スタンバイ時、燃料
供給ポンプ５より送油された燃料油は燃料高圧噴射管２
より燃料噴射弁１の燃料高圧供給路３０をへて油溜り室
４０へ供給される。1 and 2, when the engine is on standby, the fuel oil sent from the fuel supply pump 5 is the fuel high pressure injection pipe 2
The fuel is supplied to the oil sump chamber 40 through the fuel high pressure supply passage 30 of the fuel injection valve 1.
【００１８】針弁１１は（３００〜５００）ｋｇ／ｃｍ
2 の燃料油圧力で作動するように針弁押えばね１３によ
り押圧されているので、燃料送油用ポンプの送油圧力
（５〜１５）ｋｇ／ｃｍ2 では作動しない。Needle valve 11 is (300-500) kg / cm
Since it is pressed by the needle valve pressing spring 13 so as to operate at the fuel oil pressure of 2 , the fuel oil pump does not operate at the oil pressure (5 to 15) kg / cm 2 .
【００１９】従って燃料油は油溜り室４０より燃料油循
環径路２０と針弁押し棒１２に設けられた燃料油通路２
１を通って針弁押えばね１３のばね室２３と、循環燃料
油戻り管３とをへて排出され、図示しない燃料タンクへ
戻される。Therefore, the fuel oil flows from the oil sump chamber 40 into the fuel oil circulation passage 20 and the fuel oil passage 2 provided in the needle valve push rod 12.
1 through the spring chamber 23 of the needle valve pressing spring 13 and the circulating fuel oil return pipe 3 to be discharged to a fuel tank (not shown).
【００２０】次に図３に示す燃料噴射時には燃料噴射ポ
ンプ６より圧送された燃料油は、燃料高圧噴射管２をへ
て燃料噴射弁１内の燃料高圧供給路３０及び油溜り室４
０へ供給される。この時油溜り室４０内の燃圧は短時間
に急激に上昇する。しかしその際燃料油循環径路２０は
前記燃料高圧供給路３０より小径に設定されているた
め、燃料油循環径路２０からの燃料油の逃げ量は少な
く、油溜り室４０の圧力により針弁１１はリフトし、燃
料油は噴孔１４よりシリンダ内へ噴射供給される。Next, at the time of fuel injection shown in FIG. 3, the fuel oil pumped by the fuel injection pump 6 passes through the high-pressure fuel injection pipe 2 and the high-pressure fuel supply passage 30 in the fuel injection valve 1 and the oil sump chamber 4 are shown.
Supplied to zero. At this time, the fuel pressure in the oil sump chamber 40 rapidly rises in a short time. However, at that time, since the fuel oil circulation path 20 is set to have a smaller diameter than the fuel high pressure supply path 30, the escape amount of the fuel oil from the fuel oil circulation path 20 is small, and the needle valve 11 is operated by the pressure in the oil sump chamber 40. The fuel oil is lifted and the fuel oil is injected and supplied from the injection holes 14 into the cylinder.
【００２１】針弁１１がリフトすると針弁ばね室２３方
向への流れが制限され、さらに針弁がリフトすると針弁
押し棒１２のテーパ加工面５１と燃料噴射弁本体１ａの
テーパ加工面５０が面当りして針弁押し棒１２に設けら
れている燃料油通路２１はこのテーパ部（５０，５１）
の面当りにより閉鎖され、燃料油循環路２０とばね室２
３との連通が遮断される。これにより燃料噴射は高圧で
確実に行われる。When the needle valve 11 is lifted, the flow toward the needle valve spring chamber 23 is restricted, and when the needle valve is further lifted, the tapered surface 51 of the needle valve push rod 12 and the tapered surface 50 of the fuel injection valve body 1a are separated. The fuel oil passage 21 provided on the needle valve push rod 12 in contact with the surface is the tapered portion (50, 51).
The fuel oil circulation path 20 and the spring chamber 2
Communication with 3 is cut off. This ensures fuel injection at high pressure.
【００２２】[0022]
【発明の効果】本発明を実施することによる燃料油高圧
ラインへの循環弁の設置を取止めることが可能となるの
で、次のような効果を生じる。 高圧力条件下で作動する部品が廃止できるため、燃
料噴射弁の高圧部の構造が単純化され、その信頼性が大
幅に向上する。 高強度を必要とする部品即ち循環弁等の廃止により
燃料噴射弁の重量軽減とコンパクト化が可能となる。 高速機関等でも燃料噴射に対する流路障害が大幅に
低減され噴射効率の上昇と性能の向上が実現できる。By implementing the present invention, it becomes possible to stop the installation of the circulation valve in the fuel oil high pressure line, so that the following effects are produced. Since the parts that operate under high pressure conditions can be eliminated, the structure of the high pressure portion of the fuel injection valve is simplified and its reliability is greatly improved. By eliminating the parts requiring high strength, that is, the circulation valve, the weight and size of the fuel injection valve can be reduced. Even in a high-speed engine or the like, obstacles to the flow path for fuel injection can be greatly reduced, and injection efficiency can be increased and performance can be improved.
【図１】燃料油供給径路図（本発明、従来例に共通）。FIG. 1 is a fuel oil supply path diagram (common to the present invention and a conventional example).
【図２】本発明の第１実施例に係る燃料噴射弁内での燃
料循環時の状態図。FIG. 2 is a state diagram during fuel circulation in the fuel injection valve according to the first embodiment of the present invention.
【図３】同燃料噴射時の状態図。FIG. 3 is a state diagram at the time of fuel injection.
【図４】従来例の図１応当図。FIG. 4 is a prior art example corresponding to FIG. 1.
１…燃料噴射弁、１ａ…燃料噴射弁本体、２…燃料高圧
噴射管、３…循環燃料油戻り管、５…燃料送油用ポン
プ、６…燃料噴射ポンプ、１１…針弁、１２…針弁押し
棒、１３…針弁押さえバネ、２０…燃料油循環径路、２
１…燃料油通路、２３…バネ室、３０…燃料高圧供給
路、４０…油溜り室、１４…噴孔、５０…燃料噴射弁本
体テーパ加工部、５１…針弁押し棒テーパ加工部。DESCRIPTION OF SYMBOLS 1 ... Fuel injection valve, 1a ... Fuel injection valve main body, 2 ... Fuel high pressure injection pipe, 3 ... Circulating fuel oil return pipe, 5 ... Fuel oil supply pump, 6 ... Fuel injection pump, 11 ... Needle valve, 12 ... Needle Valve push rod, 13 ... Needle valve pressing spring, 20 ... Fuel oil circulation path, 2
DESCRIPTION OF SYMBOLS 1 ... Fuel oil passage, 23 ... Spring chamber, 30 ... High pressure fuel supply passage, 40 ... Oil sump chamber, 14 ... Injection hole, 50 ... Fuel injection valve main body taper processing part, 51 ... Needle valve push rod taper processing part.
Claims (3)
油が送油用ポンプ（５）から燃料噴射ポンプ（６）、燃
料高圧噴射管（２）を通って燃料噴射弁（１）へ常に供
給される燃料油供給システムにおいて、燃料高圧供給路
（３０）と針弁部の油溜り室（４０）が連通され、該油
溜り室と燃料油循環径路（２０）が連通されるととも
に、針弁（１１）へ針弁押えばね（１３）のばね力を伝
えている針弁押し棒（１２）に燃料油通路（２１）を設
け、該燃料油通路（２１）が前記燃料油循環径路（２
０）と前記針弁押えぼねのばね室（２３）とを連通し、
該ばね室（２３）が循環燃料戻り管（３）と連通してい
ることを特徴とする内燃機関の燃料噴射弁。1. A fuel oil is circulated in the fuel injection valve from an oil feeding pump (5) to a fuel injection valve (1) through a fuel injection pump (6) and a high pressure fuel injection pipe (2). In the fuel oil supply system that is constantly supplied, the high-pressure fuel supply path (30) communicates with the oil reservoir chamber (40) of the needle valve portion, and the oil reservoir chamber communicates with the fuel oil circulation path (20). A fuel oil passage (21) is provided in the needle valve pushing rod (12) that transmits the spring force of the needle valve pressing spring (13) to the needle valve (11), and the fuel oil passage (21) is the fuel oil circulation path. (2
0) communicates with the spring chamber (23) of the needle valve retainer,
A fuel injection valve for an internal combustion engine, characterized in that the spring chamber (23) communicates with a circulating fuel return pipe (3).
径路（２０）の通路面積を、一部又は通路全体にわたっ
て小さくしたことを特徴とする請求項（１）記載の内燃
機関の燃料噴射弁。2. The fuel injection for an internal combustion engine according to claim 1, wherein the passage area of the fuel circulation passage (20) is smaller than that of the high-pressure fuel supply passage (30) over a part or the entire passage. valve.
油が燃料噴射弁内に供給される時、その供給圧力によっ
て針弁が針弁押えばね（１３）のばね力に打ち勝ってリ
フトし、噴孔より燃料油が機関内へ噴射供給される燃料
噴射弁において、針弁リフト時、針弁押し棒テーパ加工
部（５１）と燃料噴射弁本体テーパ加工部（５０）が面
当りして接触することで針弁リフト量を制限し、さらに
針弁押し棒（１２）に設けられた燃料油通路の一方の開
口部が針弁押し棒テーパ加工部（５１）と燃料噴射弁本
体テーパ加工部（５０）の面当り接触により閉ざされ、
燃料油循環径路（２０）と針弁押えばねのばね室（２
３）との連通が断たれることを特徴とする請求項
（１），（２）記載の内燃機の燃料噴射弁。3. When the high-pressure fuel oil is supplied into the fuel injection valve by the operation of the fuel injection pump, the supply pressure causes the needle valve to overcome the spring force of the needle valve pressing spring (13) and lift, In a fuel injection valve in which fuel oil is injected and supplied into the engine through a hole, a needle valve push rod taper processing part (51) and a fuel injection valve main body taper processing part (50) come into surface contact with each other during needle valve lift. Therefore, the needle valve lift amount is limited, and one opening of the fuel oil passage provided in the needle valve push rod (12) is further provided with a needle valve push rod taper processing portion (51) and a fuel injection valve main body taper processing portion ( It is closed by the surface contact of 50),
The fuel oil circulation path (20) and the spring chamber of the needle valve pressing spring (2
The fuel injection valve for an internal combustion engine according to claim (1) or (2), characterized in that the communication with (3) is cut off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2736995A JPH08200183A (en) | 1995-01-23 | 1995-01-23 | Fuel injection valve for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2736995A JPH08200183A (en) | 1995-01-23 | 1995-01-23 | Fuel injection valve for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08200183A true JPH08200183A (en) | 1996-08-06 |
Family
ID=12219145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2736995A Withdrawn JPH08200183A (en) | 1995-01-23 | 1995-01-23 | Fuel injection valve for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08200183A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998011342A1 (en) * | 1996-09-11 | 1998-03-19 | Daimler-Benz Aktiengesellschaft | Internal combustion diesel engine working with fuel injection |
| WO2004029446A1 (en) * | 2002-09-26 | 2004-04-08 | Westport Research Inc. | Liquid cooled fuel injection valve and method of operating a liquid cooled fuel injection valve |
| WO2008095674A1 (en) * | 2007-02-05 | 2008-08-14 | Fmp Fluid Measurement And Projects Gmbh | Valve, device and method for generating a fluid pulse |
| JP2009030605A (en) * | 2007-07-27 | 2009-02-12 | Waertsilae Schweiz Ag | Fuel injection nozzle |
| WO2010042359A3 (en) * | 2008-10-07 | 2010-07-08 | Caterpillar Inc. | Cooling feature for fuel injector and fuel system using same |
-
1995
- 1995-01-23 JP JP2736995A patent/JPH08200183A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998011342A1 (en) * | 1996-09-11 | 1998-03-19 | Daimler-Benz Aktiengesellschaft | Internal combustion diesel engine working with fuel injection |
| WO2004029446A1 (en) * | 2002-09-26 | 2004-04-08 | Westport Research Inc. | Liquid cooled fuel injection valve and method of operating a liquid cooled fuel injection valve |
| US7090145B2 (en) | 2002-09-26 | 2006-08-15 | Westport Research Inc. | Liquid cooled fuel injection valve and method of operating a liquid cooled fuel injection valve |
| WO2008095674A1 (en) * | 2007-02-05 | 2008-08-14 | Fmp Fluid Measurement And Projects Gmbh | Valve, device and method for generating a fluid pulse |
| JP2009030605A (en) * | 2007-07-27 | 2009-02-12 | Waertsilae Schweiz Ag | Fuel injection nozzle |
| WO2010042359A3 (en) * | 2008-10-07 | 2010-07-08 | Caterpillar Inc. | Cooling feature for fuel injector and fuel system using same |
| US7849836B2 (en) | 2008-10-07 | 2010-12-14 | Caterpillar Inc | Cooling feature for fuel injector and fuel system using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20020402 |