JPH0617722A - Liquid fuel atomizing device - Google Patents
Liquid fuel atomizing deviceInfo
- Publication number
- JPH0617722A JPH0617722A JP17798692A JP17798692A JPH0617722A JP H0617722 A JPH0617722 A JP H0617722A JP 17798692 A JP17798692 A JP 17798692A JP 17798692 A JP17798692 A JP 17798692A JP H0617722 A JPH0617722 A JP H0617722A
- Authority
- JP
- Japan
- Prior art keywords
- liquid fuel
- spray
- nozzle
- turbulence
- present
- 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
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Fuel-Injection Apparatus (AREA)
- Nozzles For Spraying Of Liquid Fuel (AREA)
- Nozzles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、内燃機関用の燃料噴射
弁、ボイラー等の燃焼機器用のバーナーなどに好適に使
用され、スモークの発生を低レベルに維持しつつ、ＮＯ
X を大幅に低減できる液体燃料微粒化装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is preferably used for a fuel injection valve for an internal combustion engine, a burner for a combustion device such as a boiler, and the like, while maintaining the generation of smoke at a low level,
The present invention relates to a liquid fuel atomizer capable of significantly reducing X.
【０００２】[0002]
【従来の技術】現在、例えば、ディーゼル機関において
は、スモークおよびＮＯX の低減は重要な課題であり、
その低減に向けて高圧噴射、燃焼方式の改善、排気ガス
再循環（ＥＧＲ）等、種々の提案が行われている。この
うちＥＧＲは、燃費およびスモークの悪化、排ガスによ
るＥＧＲ装置の腐食或いは機能低下等、耐久性および信
頼性の問題がある。2. Description of the Related Art At present, for example, in diesel engines, reduction of smoke and NO x is an important issue.
Various proposals such as high-pressure injection, improvement of combustion system, exhaust gas recirculation (EGR), etc. have been made for the reduction. Among them, EGR has problems of durability and reliability such as deterioration of fuel consumption and smoke, corrosion of EGR device due to exhaust gas or deterioration of function.
【０００３】また、燃焼方式の観点からみれば、現在広
く用いられている低圧噴射の場合、噴霧はノズル近傍で
着火した後、全体が火炎に包まれながら進行し、この
時、噴霧は、空気と同時に自己の生成した既燃ガスを巻
き込みながら燃焼するので、噴霧中心部において高温
部、酸素不足部が形成されスモークの生成要因となり、
既燃ガスの巻き込みはマイナス要因として働くと言われ
ている。このためスモークを低減するには、燃料と空気
を迅速に混合する必要があり、スワール、スキッシュ等
により空気利用率を向上する方法が採られているが、こ
れでは着火遅れの間の燃料、空気混合速度も増大するた
め、予混合燃焼の増加により燃焼初期の熱発生率が増大
し、ＮＯX の増大を招くという相反する問題を有してお
り、これがスモークとＮＯX の同時低減を困難にしてい
る。From the viewpoint of the combustion system, in the case of low pressure injection which is widely used at present, after the spray is ignited in the vicinity of the nozzle, it progresses while being wrapped in the whole flame. At this time, the spray is air. At the same time, it burns while energizing the burnt gas generated by itself, so a high temperature part and an oxygen deficient part are formed in the center of the spray, which becomes a cause of smoke
It is said that entrainment of burnt gas acts as a negative factor. Therefore, in order to reduce smoke, it is necessary to mix fuel and air quickly, and methods such as swirl and squish are used to improve the air utilization rate. Since the mixing speed also increases, there is a contradictory problem that the heat generation rate in the early stage of combustion increases due to the increase in premixed combustion, leading to an increase in NO X , which makes it difficult to reduce smoke and NO X simultaneously. ing.
【０００４】上記問題を解決するために、高圧噴射（例
えば噴射圧１０００ｋｇ／ｃｍ2 以上）、小噴孔径ノズ
ル、浅皿燃焼室および低スワールを組合せる方式が知ら
れている。これを図７により説明すると、１はピスト
ン、２はピストンリング、３はシリンダライナー、４は
ガスケット、５はシリンダヘッド、６はノズル７を有す
る燃料噴射弁を示し、ピストン１の頂部には燃焼室９が
形成されている。ピストン１が上昇し上死点付近に達し
たとき、ノズル７から噴射された燃料の噴霧Ｆは、壁面
１０近傍で一気に着火した後、火炎Ｈは、燃焼室９中心
に向かって膨張するが、噴霧のもつエネルギーが大きい
ため噴射の終了まで中心部は不燃域として残る。すなわ
ち、噴霧は壁面１０に到達するまで燃焼室９中心に近い
不燃域側で十分に空気を巻き込みながら進行し、壁面１
０側では既燃ガスを導入しながら壁面１０に衝突する二
段の燃焼経路をたどるためスモークは低く、噴射時期を
大幅に遅らせても火がつくため、噴射時期遅延との組み
合わせで、低圧噴射と比較してスモークおよびＮＯX の
同時低減を図ることができる。In order to solve the above problems, there is known a system in which a high pressure injection (for example, an injection pressure of 1000 kg / cm 2 or more), a small injection hole nozzle, a shallow dish combustion chamber and a low swirl are combined. This will be described with reference to FIG. 7. 1 is a piston, 2 is a piston ring, 3 is a cylinder liner, 4 is a gasket, 5 is a cylinder head, and 6 is a fuel injection valve having a nozzle 7. A chamber 9 is formed. When the piston 1 rises and reaches the vicinity of the top dead center, the spray F of the fuel injected from the nozzle 7 ignites at once in the vicinity of the wall surface 10, and then the flame H expands toward the center of the combustion chamber 9, Since the energy of the spray is large, the central part remains as a non-combustible area until the end of injection. That is, the spray progresses while sufficiently entraining air in the non-combustible region side near the center of the combustion chamber 9 until it reaches the wall surface 10.
On the 0 side, the smoke is low because it follows the two-stage combustion path that collides with the wall surface 10 while introducing the burnt gas, and even if the injection timing is significantly delayed, there is fire, so low pressure injection is combined with the injection timing delay. It is possible to reduce the smoke and the NO X at the same time as compared with the above.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら現状では
燃焼室内の空気（酸素）の利用が十分でなく、特に高負
荷時（燃料噴射量大）は、スモークを生成し排出すると
いう問題を有している。この問題を解決するために、本
発明者は、前記燃料噴射弁を用いて噴霧内部の濃度分布
を観察する実験を行った。図８は実験装置の概略構成図
であり、１１１は高圧容器、１１２は観察用窓、１１３
は燃料噴射弁、１１４は真空ポンプ、１１５は窒素ガス
ボンベ、１１６はイメージ変換カメラ、１１７は燃料供
給装置、１１８は噴射制御装置、１１９はレーザ制御装
置、１２０は銅蒸気レーザを示し、高圧容器１１１内に
噴射された噴霧にレーザ光を照射することにより、散乱
光の状態から噴霧内部の濃度分布を観察した。However, at present, the use of air (oxygen) in the combustion chamber is not sufficient, and there is a problem that smoke is generated and discharged especially at high load (fuel injection amount is large). There is. In order to solve this problem, the present inventor conducted an experiment to observe the concentration distribution inside the spray using the fuel injection valve. FIG. 8 is a schematic configuration diagram of the experimental apparatus. 111 is a high pressure vessel, 112 is an observation window, and 113.
Is a fuel injection valve, 114 is a vacuum pump, 115 is a nitrogen gas cylinder, 116 is an image conversion camera, 117 is a fuel supply device, 118 is an injection control device, 119 is a laser control device, 120 is a copper vapor laser, and a high-pressure container 111. The concentration distribution inside the spray was observed from the state of scattered light by irradiating the spray injected inside with laser light.
【０００６】図９は噴霧状態を説明するための図であ
り、噴霧の構造および現象は大きく４つの領域に分けら
れ領域Ｉでは噴霧は高濃度で殆ど広がらずに直進し、領
域IIでは直進したものが不安定に蛇行し始め、領域III
では蛇行が変形して枝構造となり進むにつれて枝は間隔
を変え、***や合体を繰り返し、或いは周囲から徐々に
液滴を剥ぎ取られてゆく。領域IVではもはや枝構造は失
われそれぞれの縞は周囲気体との間に発生した渦の影響
を受け、独自の挙動を示し複雑な分布をとる。このよう
に、噴霧内部は非常に不均一であり、液滴が集まった高
濃度の縞がいくつも見られ、この不均一の高濃度の部分
は、多量のスモークの生成へつながる。FIG. 9 is a diagram for explaining the spray state. The structure and phenomenon of the spray are roughly divided into four regions, and in the region I, the spray goes straight with high concentration and hardly spreads, and in the region II, it goes straight. Things began to meander insecurely, Region III
Then, as the meander deforms to form a branch structure, the branches change intervals, repeat division and coalescence, or gradually drop droplets from the surroundings. In Region IV, the branch structure is no longer present, and each fringe is affected by the vortex generated between it and the surrounding gas, and exhibits unique behavior and has a complicated distribution. Thus, the inside of the spray is very non-uniform, and several high-density stripes of droplets are seen, and this non-uniform high-density portion leads to the production of a large amount of smoke.
【０００７】上記実験において、噴霧内に金網を配置す
ると、噴霧内に大きな乱れを発生させ、高濃度の縞が小
さく、また噴霧も大きく拡がることが判明した。すなわ
ち、濃度分布としては均一に近く、かつ周囲気体を多く
取り込んで濃度も低くなる。本発明は、上記問題、課題
を解決するものであって、噴霧の乱れを促進させること
により、噴霧と空気との混合を活発化し、スモークの発
生を低レベルに維持しつつ、ＮＯX を大幅に低減できる
液体燃料微粒化装置を提供することを目的とする。In the above experiment, it was found that when a wire net was placed in the spray, a large turbulence was generated in the spray, a high-concentration fringe was small, and the spray was widened. In other words, the concentration distribution is almost uniform, and a large amount of ambient gas is taken in, so that the concentration becomes low. The present invention is to solve the above-mentioned problems and problems. By promoting turbulence of the spray, the mixture of the spray and air is activated, and the generation of smoke is maintained at a low level, while NO x is greatly increased. It is an object of the present invention to provide a liquid fuel atomization device that can be reduced to a low level.
【０００８】[0008]
【課題を解決するための手段】そのために本発明の液体
燃料微粒化装置は、液体燃料噴射装置１３に設けられる
ノズル１４と、該ノズルに形成される複数の噴孔１５
と、前記液体燃料噴射装置１３に取り付けられる乱れ付
与部材１６とを備え、前記噴孔１５から噴射される各噴
霧Ｆに衝突するように前記乱れ付与部材１６を配置する
ことを特徴とする。To this end, the liquid fuel atomizing device of the present invention is provided with a nozzle 14 provided in the liquid fuel injection device 13 and a plurality of injection holes 15 formed in the nozzle.
And a turbulence imparting member 16 attached to the liquid fuel injection device 13, and the turbulence imparting member 16 is arranged so as to collide with each spray F ejected from the injection hole 15.
【０００９】前記乱れ付与部材１６は部材１６ａ、１６
ｃを交差して形成してもよいし、メッシュ部材１６ｄに
してもよい。また、前記ノズル１４を直接噴射式ディー
ゼル機関の燃焼室１２に取り付けるようにしてもよい。
なお、上記構成に付加した番号は、理解を容易にするた
めに図面と対比させるためのもので、これにより本発明
の構成が何ら限定されるものではない。The turbulence imparting member 16 includes members 16a and 16a.
It may be formed by intersecting c, or may be the mesh member 16d. Further, the nozzle 14 may be attached to the combustion chamber 12 of the direct injection diesel engine.
It should be noted that the numbers added to the above configurations are for comparison with the drawings for easy understanding, and the configurations of the present invention are not limited thereby.
【００１０】[0010]
【作用】本発明においては、例えば図１に示すように、
ノズル１４の噴孔１５から噴射された噴霧Ｆは、乱れ付
与部材１６の交点１７に衝突し噴霧Ｆ内に大きな乱れを
発生させ、空気との混合を促進させながら、ピストン１
１の外周壁１１ａに衝突して着火、燃焼し、スモークの
発生を低レベルに抑える。In the present invention, for example, as shown in FIG.
The spray F injected from the injection hole 15 of the nozzle 14 collides with the intersection 17 of the turbulence imparting member 16 to generate a large turbulence in the spray F, and promotes mixing with the air while the piston 1
The outer peripheral wall 11a of No. 1 is ignited and burned to suppress smoke generation to a low level.
【００１１】[0011]
【実施例】以下、本発明の実施例を図面を参照しつつ説
明する。図１は本発明の液体燃料微粒化装置を直接噴射
式ディーゼル機関に適用した１実施例を示し、図Ａは斜
視図、図Ｂは図Ａの部分拡大図である。なお、本発明
は、このような直接噴射式ディーゼル機関に限定される
ものではなく、他の内燃機関の燃料噴射弁或いはボイラ
ー等の燃焼機器用のバーナー等に適用可能である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment in which the liquid fuel atomizing device of the present invention is applied to a direct injection diesel engine. FIG. A is a perspective view and FIG. B is a partially enlarged view of FIG. The present invention is not limited to such a direct injection diesel engine, but can be applied to a fuel injection valve of another internal combustion engine or a burner for combustion equipment such as a boiler.
【００１２】１１はピストン、１２は燃焼室、１３はノ
ズル１４を有する燃料噴射弁を示し、ノズル１４には、
燃料を噴射する複数の噴孔１５が形成されている。燃料
噴射装置である燃料噴射弁１３には、乱れ付与部材１６
が取付固定される。乱れ付与部材１６は、燃料噴射弁１
３の外周に沿って延設し更にピストン１１の径方向に曲
折された後、下方に延びる縦方向部材１６ａと、この縦
方向部材１６ａに溶着される円形の横方向部材１６ｂ、
１６ｃとからなる。そして、乱れ付与部材１６は、噴孔
１５から噴射される噴霧Ｆの中心が、縦方向部材１６ａ
と横方向部材１６ｃの交点１７にくるように取付固定さ
れる。Reference numeral 11 is a piston, 12 is a combustion chamber, 13 is a fuel injection valve having a nozzle 14, and the nozzle 14 has
A plurality of injection holes 15 for injecting fuel are formed. The turbulence imparting member 16 is provided in the fuel injection valve 13 which is a fuel injection device.
Is attached and fixed. The turbulence imparting member 16 is used for the fuel injection valve 1
3, a vertical member 16a extending along the outer periphery of the piston 3 and further bent downward in the radial direction of the piston 11, and a circular horizontal member 16b welded to the vertical member 16a.
16c and. Then, in the turbulence imparting member 16, the center of the spray F ejected from the injection hole 15 has the longitudinal member 16a.
Is attached and fixed so as to come to the intersection 17 of the lateral member 16c.
【００１３】上記構成からなる本実施例の作用について
説明すると、ノズル１４の噴孔１５から噴射された噴霧
Ｆは、乱れ付与部材１６の交点１７に衝突し噴霧Ｆ内に
大きな乱れを発生させ、空気との混合を促進させなが
ら、ピストン１１の外周壁１１ａに衝突して着火、燃焼
し、スモークの発生を低レベルに抑える。Explaining the operation of this embodiment having the above structure, the spray F injected from the injection hole 15 of the nozzle 14 collides with the intersection 17 of the turbulence imparting member 16 and causes a large turbulence in the spray F. While promoting the mixing with air, it collides with the outer peripheral wall 11a of the piston 11 and ignites and burns to suppress the generation of smoke to a low level.
【００１４】図２は本発明の他の実施例を示す斜視図で
ある。なお、以下の実施例においては、図１の実施例と
同一の構成については同一番号を付けて説明を省略す
る。本実施例においては、縦方向部材１６ａを直線状と
し、従って、前記実施例と比較して噴霧Ｆと乱れ付与部
材１６の衝突する位置が異なる。FIG. 2 is a perspective view showing another embodiment of the present invention. In the following embodiments, the same configurations as those of the embodiment of FIG. In this embodiment, the vertical member 16a has a linear shape, and therefore, the collision positions of the spray F and the turbulence imparting member 16 are different from those in the above embodiments.
【００１５】図３は本発明のさらに他の実施例を示す斜
視図であり、乱れ付与部材１６は、燃料噴射弁１３の外
周に沿って延設する縦方向部材１６ａと、この縦方向部
材１６ａに溶着される円形の横方向部材１６ｂと、横方
向部材１６ｂに溶着される半球形状のメッシュ部材１６
ｄとからなり、ノズル１４の噴孔１５から噴射された噴
霧Ｆは、メッシュ部材１６ｄに衝突し噴霧Ｆ内に大きな
乱れを発生させる。FIG. 3 is a perspective view showing still another embodiment of the present invention. The turbulence imparting member 16 is a vertical member 16a extending along the outer periphery of the fuel injection valve 13, and this vertical member 16a. The circular lateral member 16b welded to the lateral member 16 and the hemispherical mesh member 16 welded to the lateral member 16b.
The spray F, which is composed of d and is sprayed from the injection hole 15 of the nozzle 14, collides with the mesh member 16d and causes a large turbulence in the spray F.
【００１６】図４は本発明のさらに他の実施例を示す斜
視図である。本実施例においては、メッシュ部材１６ｄ
を筒形状とし、２つの横方向部材１６ｂ、１６ｃに溶着
させている。FIG. 4 is a perspective view showing still another embodiment of the present invention. In this embodiment, the mesh member 16d
Has a cylindrical shape and is welded to the two lateral members 16b and 16c.
【００１７】図５は本発明のさらに他の実施例を示し、
図Ａは斜視図、図Ｂは図Ａの部分拡大図である。乱れ付
与部材１６は、燃料噴射弁１３の外周に固定される筒部
材１６ｅと、この筒部材１６ｅに形成される複数の貫通
穴１６ｆとを有し、貫通穴１６ｆには、図Ｂに示すよう
に、種々の形状の部材１６ｇまたはメッシュ１６ｈが設
けられる。FIG. 5 shows still another embodiment of the present invention,
FIG. A is a perspective view and FIG. B is a partially enlarged view of FIG. The turbulence imparting member 16 has a tubular member 16e fixed to the outer periphery of the fuel injection valve 13 and a plurality of through holes 16f formed in the tubular member 16e. Further, members 16g or meshes 16h having various shapes are provided.
【００１８】図６は本発明のさらに他の実施例を示す断
面図であり、乱れ付与部材１６は、燃料噴射弁１３の外
周に螺合される筒部材１６ｅと、この筒部材１６ｅの先
端に取り付けられるメッシュ部材１６ｄからなる。FIG. 6 is a cross-sectional view showing still another embodiment of the present invention. The turbulence imparting member 16 is a tubular member 16e screwed onto the outer periphery of the fuel injection valve 13, and a tip end of the tubular member 16e. The mesh member 16d is attached.
【００１９】[0019]
【発明の効果】以上の説明から明らかなように本発明に
よれば、液体燃料噴射装置に設けられるノズルと、該ノ
ズルに形成される複数の噴孔と、前記液体燃料噴射装置
に取り付けられる乱れ付与部材とを備え、前記噴孔から
噴射される各噴霧に衝突するように前記乱れ付与部材を
配置するので、噴霧の乱れを促進させることにより、噴
霧と空気との混合を活発化し、スモークの発生を低レベ
ルに維持しつつ、ＮＯXを大幅に低減できる。As is apparent from the above description, according to the present invention, a nozzle provided in a liquid fuel injection device, a plurality of injection holes formed in the nozzle, and a turbulence attached to the liquid fuel injection device. Since the turbulence imparting member is provided so as to collide with each spray sprayed from the injection hole, the turbulence of the spray is promoted, thereby activating the mixing of the spray and the air, and NO x can be significantly reduced while maintaining low levels of emissions.
【図１】本発明の液体燃料微粒化装置を直接噴射式ディ
ーゼル機関に適用した１実施例を示し、図Ａは斜視図、
図Ｂは図Ａの部分拡大図FIG. 1 shows an embodiment in which the liquid fuel atomizing device of the present invention is applied to a direct injection diesel engine, and FIG.
Figure B is a partially enlarged view of Figure A
【図２】本発明の他の実施例を示す斜視図FIG. 2 is a perspective view showing another embodiment of the present invention.
【図３】本発明のさらに他の実施例を示す斜視図FIG. 3 is a perspective view showing still another embodiment of the present invention.
【図４】本発明のさらに他の実施例を示す斜視図FIG. 4 is a perspective view showing still another embodiment of the present invention.
【図５】本発明のさらに他の実施例を示し、図Ａは斜視
図、図Ｂは図Ａの部分拡大図5 shows another embodiment of the present invention, FIG. A is a perspective view, FIG. B is a partially enlarged view of FIG.
【図６】本発明のさらに他の実施例を示す断面図FIG. 6 is a sectional view showing still another embodiment of the present invention.
【図７】従来の直接噴射式ディーゼル機関の例を示し、
図Ａは断面図、図Ｂは平面図FIG. 7 shows an example of a conventional direct injection diesel engine,
Figure A is a sectional view and Figure B is a plan view
【図８】本発明に係わる実験装置の概略構成図FIG. 8 is a schematic configuration diagram of an experimental apparatus according to the present invention.
【図９】本発明の課題を説明するための噴霧状態を示す
図FIG. 9 is a diagram showing a spray state for explaining the problems of the present invention.
１１…ピストン、１２…燃焼室、１３…燃料噴射装置、
１４…ノズル １５…噴孔、１６…乱れ付与部材、１６ａ…縦方向部材 １６ｂ、１６ｃ…横方向部材、１６ｄ…メッシュ部材、
１６ｅ…筒部材 １６ｆ…貫通穴、１６ｇ…部材、１６ｈ…メッシュ、１
７…交点、Ｆ…噴霧11 ... Piston, 12 ... Combustion chamber, 13 ... Fuel injection device,
14 ... Nozzle 15 ... Injection hole, 16 ... Disturbance imparting member, 16a ... Vertical member 16b, 16c ... Horizontal member, 16d ... Mesh member,
16e ... Cylindrical member 16f ... Through hole, 16g ... Member, 16h ... Mesh, 1
7 ... Intersection, F ... Spraying
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｆ０２Ｂ 23/06 Ｈ 9039−3Ｇ Ｆ２３Ｄ 11/38 Ｈ 9250−3Ｋ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification number Office reference number FI technical display location F02B 23/06 H 9039-3G F23D 11/38 H 9250-3K
Claims (4)
該ノズルに形成される複数の噴孔と、前記液体燃料噴射
装置に取り付けられる乱れ付与部材とを備え、前記噴孔
から噴射される各噴霧に衝突するように前記乱れ付与部
材を配置することを特徴とする液体燃料微粒化装置。1. A nozzle provided in a liquid fuel injection device,
A plurality of injection holes formed in the nozzle and a turbulence imparting member attached to the liquid fuel injection device are provided, and the turbulence imparting member is arranged so as to collide with each spray injected from the nozzle hole. Characterizing liquid fuel atomizer.
ることを特徴とする請求項１に記載の液体燃料微粒化装
置。2. The liquid fuel atomizing apparatus according to claim 1, wherein the turbulence imparting member is formed by intersecting the members.
とを特徴とする請求項１に記載の液体燃料微粒化装置。3. The liquid fuel atomization device according to claim 1, wherein the turbulence imparting member is a mesh member.
燃焼室に取り付けることを特徴とする請求項１ないし請
求項４のいずれかに記載の液体燃料微粒化装置。4. The liquid fuel atomizing apparatus according to claim 1, wherein the nozzle is attached to a combustion chamber of a direct injection type diesel engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17798692A JPH0617722A (en) | 1992-07-06 | 1992-07-06 | Liquid fuel atomizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17798692A JPH0617722A (en) | 1992-07-06 | 1992-07-06 | Liquid fuel atomizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0617722A true JPH0617722A (en) | 1994-01-25 |
Family
ID=16040537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17798692A Pending JPH0617722A (en) | 1992-07-06 | 1992-07-06 | Liquid fuel atomizing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0617722A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE45510E1 (en) | 2005-08-17 | 2015-05-05 | Hisamitsu Pharmaceutical Co., Inc. | Patch having easily detachable release sheet |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61104156A (en) * | 1984-10-26 | 1986-05-22 | Nippon Denso Co Ltd | Electromagnetic type fuel injection valve |
-
1992
- 1992-07-06 JP JP17798692A patent/JPH0617722A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61104156A (en) * | 1984-10-26 | 1986-05-22 | Nippon Denso Co Ltd | Electromagnetic type fuel injection valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE45510E1 (en) | 2005-08-17 | 2015-05-05 | Hisamitsu Pharmaceutical Co., Inc. | Patch having easily detachable release sheet |
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