【０００１】[0001]
【産業上の利用分野】本発明は、液体燃料燃焼装置や、
加湿器等に用いられる液体微粒化装置に関する。BACKGROUND OF THE INVENTION The present invention relates to a liquid fuel combustion device,
The present invention relates to a liquid atomizer used for a humidifier or the like.
【０００２】[0002]
【従来の技術】液体の微粒化は色々な分野で用いられて
おり、微粒化方式も多岐にわたっている。その一つとし
て、液体噴流を衝突体に衝突させる方式のものがある。
これは図２に示すように、液ノズル１の先端の微細な液
噴出孔２から液体を噴出し、この噴流Ｌａを液噴出孔２
下流に設けた衝突体３に衝突させて微粒化するものであ
る。2. Description of the Related Art Atomization of liquids is used in various fields, and there are various atomization methods. As one of them, there is a system in which a liquid jet collides with a colliding body.
As shown in FIG. 2, this is because the liquid is jetted from the fine liquid jet holes 2 at the tip of the liquid nozzle 1, and this jet La is made to flow through the liquid jet holes 2
It collides with a colliding body 3 provided downstream and atomizes.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記従
来の構成では、液体の噴出流量を変化させると、液体の
流速が変化し、液体の噴流の状態も変化するので、最適
な微粒化状態を得るには、最適な衝突位置を設定しなけ
ればならない。また、液体の噴出量を少なくすると、流
速が遅くなって液体の運動エネルギーが小さくなるた
め、衝突による微粒化効果が得られなくなる。したがっ
て、噴霧量の広い調節範囲で均一な微粒子を得ることが
困難であった。However, in the above-mentioned conventional configuration, when the jet flow rate of the liquid is changed, the flow velocity of the liquid is changed and the state of the liquid jet is also changed, so that an optimum atomization state is obtained. Must set the optimum collision position. Further, when the ejection amount of the liquid is reduced, the flow velocity becomes slow and the kinetic energy of the liquid becomes small, so that the atomization effect due to collision cannot be obtained. Therefore, it is difficult to obtain uniform fine particles in a wide adjustment range of the spray amount.
【０００４】本発明の液体微粒化装置は噴霧量の広い調
節範囲で均一な微粒子を得ることを目的とする。The liquid atomizer of the present invention is intended to obtain uniform fine particles in a wide adjustment range of the spray amount.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するた
め、請求項１は、中央部の液室に供給された液体を先端
部の液噴出孔から噴出する液ノズルと、この液ノズル外
周にあり、液噴出孔から噴出する液体噴流に空気を供給
する空気噴出孔を有した空気ノズルと、液ノズルと空気
ノズルの下流にあり、液噴出孔および空気噴出孔からの
噴流を衝突させる衝突体を設けたものである。In order to achieve the above object, the first aspect of the present invention is to provide a liquid nozzle for ejecting the liquid supplied to the central liquid chamber from a liquid ejection hole at the tip end, and to the outer periphery of the liquid nozzle. Yes, an air nozzle having an air jet hole for supplying air to the liquid jet jetted from the liquid jet hole, and a colliding body which is downstream of the liquid nozzle and the air nozzle and collides jets from the liquid jet hole and the air jet hole. Is provided.
【０００６】請求項２は空気噴出孔から噴出する空気の
流速を液噴出孔から噴出する液体の流速よりも速くした
ものである。According to a second aspect of the present invention, the flow velocity of the air ejected from the air ejection holes is made faster than the flow velocity of the liquid ejected from the liquid ejection holes.
【０００７】[0007]
【作用】請求項１の構成により、空気流によって液体噴
流に強制的に乱れを生じさせるので最適な衝突位置を設
定する必要が無い。また、請求項２によって噴流を常に
一定流速以上で衝突体に衝突させる。したがって、噴霧
量の広い調節範囲にわたって、粒子径の非常に小さな粒
子を得ることができる。With the structure of claim 1, it is not necessary to set the optimum collision position because the air jet forcibly causes turbulence in the liquid jet. Further, according to the second aspect, the jet flow is always collided with the colliding body at a constant flow velocity or more. Therefore, particles having a very small particle size can be obtained over a wide adjustment range of the spray amount.
【０００８】[0008]
【実施例】以下、本発明の一実施例を添付図面に基づい
て説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.
【０００９】図１において、液ノズル４の中央には液室
５が設けられ、液供給装置（図示せず）から加圧状態で
液供給管６を介して液体が供給される。液ノズル４の先
端には微細な液噴出孔７が設けられ、液室５に供給され
た液体は、フィルター８を通して、液噴出孔７より噴出
される。液ノズル４の外周には、空気ノズル９が液ノズ
ル４を覆うように設定され、空気は空気供給装置（図示
せず）から空気供給管１０を介して、液ノズル４と空気
ノズル９の間に形成される空気通路１１に供給される。
空気噴出孔１２は液噴出孔７とほぼ同一高さに設定して
あり、空気通路１１に供給された空気は空気噴出孔１２
から噴出する。液噴出孔７と空気噴出孔１２の下流側に
は衝突体１３が設けられ、支持体１４によって空気ノズ
ル９に固定されている。In FIG. 1, a liquid chamber 5 is provided at the center of the liquid nozzle 4, and liquid is supplied from a liquid supply device (not shown) through a liquid supply pipe 6 under pressure. A fine liquid ejection hole 7 is provided at the tip of the liquid nozzle 4, and the liquid supplied to the liquid chamber 5 is ejected from the liquid ejection hole 7 through the filter 8. An air nozzle 9 is set on the outer periphery of the liquid nozzle 4 so as to cover the liquid nozzle 4, and air is supplied between the liquid nozzle 4 and the air nozzle 9 from an air supply device (not shown) via an air supply pipe 10. Is supplied to the air passage 11 formed in the.
The air ejection holes 12 are set at substantially the same height as the liquid ejection holes 7, and the air supplied to the air passages 11 has the air ejection holes 12
Gushes from. A collision body 13 is provided on the downstream side of the liquid ejection hole 7 and the air ejection hole 12, and is fixed to the air nozzle 9 by a support body 14.
【００１０】上記構成において、電源（図示せず）を投
入すると、液供給手段（図示せず）が作動し、液体が加
圧状態で液供給管６を介して液室５に供給され、フィル
ター７で細かな塵等を除去した後、微細な液噴出孔７か
ら柱状の噴流となって噴出される。In the above structure, when a power source (not shown) is turned on, the liquid supply means (not shown) is activated, and the liquid is supplied under pressure to the liquid chamber 5 via the liquid supply pipe 6 and the filter. After removing fine dust and the like at 7, it is ejected as a columnar jet from the fine liquid ejection holes 7.
【００１１】これと同時に空気供給装置（図示せず）が
作動し、空気が空気供給管１０を通して空気通路１１に
供給され、液噴出孔７から噴出する液体噴流の外周を覆
うように空気噴出孔１２から噴出される。このとき、空
気噴出孔１２から噴出する空気の流速は液噴出孔７から
噴出する液体の流速よりも速く設定してある。この空気
流に搬送された液体噴流Ｌｂは、空気流で乱されながら
衝突体１３に衝突し、微粒化される。At the same time, an air supply device (not shown) is actuated, air is supplied to the air passage 11 through the air supply pipe 10, and the air jet hole is formed so as to cover the outer periphery of the liquid jet jetted from the liquid jet hole 7. Ejected from 12. At this time, the flow velocity of the air ejected from the air ejection hole 12 is set to be higher than the flow velocity of the liquid ejected from the liquid ejection hole 7. The liquid jet Lb conveyed to this air flow collides with the colliding body 13 while being disturbed by the air flow, and is atomized.
【００１２】通常、図２に示す従来例のように、空気を
作用させない場合、柱状の液体噴流Ｌａは、液噴出孔７
から噴出した後、乱れの無い平滑流領域から乱れの生じ
た振動流領域を経て分裂に到る。衝突体１３に衝突させ
て微粒化する場合、振動流領域より下流側で衝突体に衝
突させなければ微粒化効果は得られない。しかし、液柱
の分裂状態は液噴出孔７の径や液流速で変化するので、
液の噴出条件に応じて最適な衝突位置を設定しなければ
ならない。また、液体の噴出量を少なくすると、噴出流
速が低下し、液体の運動エネルギーが減少するために、
衝突体に衝突させても微粒化できない。Usually, when air is not acted on as in the conventional example shown in FIG. 2, the columnar liquid jet La has a liquid ejection hole 7
After jetting from the turbulent flow, the smooth flow region without turbulence passes through the oscillating flow region with turbulence and then splits. In the case of colliding with the colliding body 13 and atomizing, the atomizing effect cannot be obtained unless the colliding body is collided with the colliding body on the downstream side of the oscillating flow region. However, since the split state of the liquid column changes depending on the diameter of the liquid ejection hole 7 and the liquid flow velocity,
The optimum collision position must be set according to the liquid ejection conditions. In addition, when the ejection amount of the liquid is reduced, the ejection velocity decreases and the kinetic energy of the liquid decreases,
Even if it collides with a colliding body, it cannot be atomized.
【００１３】しかし本実施例では、柱状の液体噴流Ｌｂ
の外周を覆うように空気噴出孔１２から空気を供給し
て、液体噴流Ｌｂに強制的に振動流を生じさせるので、
衝突体１３の最適な位置を細かく設定する必要がなく、
噴流Ｌｂに対して任意の位置に衝突体１３を置いても、
良好な微粒化効果が得られる。また、空気の流速を液体
噴流Ｌｂの流速よりも速くしているので、液体の噴出量
を減少させて燃料の噴出速度が減少しても、空気流速と
同程度の流速で衝突体１３に衝突させることができ、噴
霧量の広い調節範囲で均一な微粒子を得ることができ
る。However, in this embodiment, the column-shaped liquid jet Lb
Since air is supplied from the air ejection hole 12 so as to cover the outer periphery of the liquid jet Lb, the liquid jet Lb is forced to generate an oscillating flow.
It is not necessary to set the optimum position of the collision body 13 in detail,
Even if the colliding body 13 is placed at an arbitrary position with respect to the jet Lb,
Good atomization effect can be obtained. Further, since the flow velocity of air is set to be higher than the flow velocity of the liquid jet Lb, even if the jet amount of liquid is reduced and the jet velocity of fuel is reduced, the colliding body 13 collides with the colliding body 13 at a velocity similar to the air velocity. It is possible to obtain uniform fine particles in a wide adjustment range of the spray amount.
【００１４】[0014]
【発明の効果】上記実施例から明らかなように、本発明
の液体微粒化装置は、請求項１によれば、中央部の液室
に供給された液体を先端部の液噴出孔から噴出する液ノ
ズルと、この液ノズル外周にあり、液噴出孔から噴出す
る液体噴流に空気を供給する空気噴出孔を有した空気ノ
ズルと、この液ノズルと空気ノズルの下流にあり、液噴
出孔および空気噴出孔からの噴流を衝突させる衝突体を
有する構成としているので、空気流によって液体噴流に
強制的に振動流を生じさせる事ができ、衝突体の最適な
位置を細かく設定する必要がなく、噴流の任意の位置に
衝突体を置いても、良好な微粒化効果が得られる。As is apparent from the above-described embodiment, according to the liquid atomizer of the present invention, the liquid supplied to the central liquid chamber is ejected from the liquid ejection hole at the tip. A liquid nozzle, an air nozzle on the outer circumference of the liquid nozzle, and an air nozzle having an air jet hole for supplying air to a liquid jet jetted from the liquid jet hole, and a liquid nozzle and an air nozzle downstream of the liquid nozzle, and the liquid jet hole and the air. Since it has a colliding body that collides the jet from the ejection hole, it is possible to forcibly generate an oscillating flow in the liquid jet by the air flow, and it is not necessary to set the optimum position of the colliding body in detail. Even if the colliding body is placed at any position, a good atomization effect can be obtained.
【００１５】また、請求項２によれば、空気噴出孔から
噴出する空気の流速を液噴出孔から噴出する液体の流速
よりも速くしているので、液体の噴出量を減少させて燃
料の噴出速度が減少しても、液体を空気流速と同程度の
流速で衝突体１３に衝突させることができるので、噴霧
量の広い調節範囲で均一な微粒子を得ることができる。Further, according to the second aspect, the flow velocity of the air ejected from the air ejection hole is made higher than the flow velocity of the liquid ejected from the liquid ejection hole, so that the ejection amount of the liquid is reduced to eject the fuel. Even if the velocity is reduced, the liquid can be collided with the colliding body 13 at a flow velocity similar to the air flow velocity, so that uniform fine particles can be obtained in a wide adjustment range of the spray amount.
【図１】本発明の一実施例の液体微粒化装置の要部断面
図FIG. 1 is a sectional view of an essential part of a liquid atomizer according to an embodiment of the present invention.
【図２】従来の液体微粒化装置の要部切欠き断面図FIG. 2 is a cutaway sectional view of a main part of a conventional liquid atomizer.
４ 液ノズル ５ 液室 ８ 液噴出孔 ９ 空気ノズル １１ 空気通路 １２ 空気噴出孔 １３ 衝突体 4 Liquid Nozzle 5 Liquid Chamber 8 Liquid Ejection Hole 9 Air Nozzle 11 Air Passage 12 Air Ejection Hole 13 Collider
───────────────────────────────────────────────────── フロントページの続き (72)発明者 肆矢 規夫 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Norio Nobuya 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5015167AJPH06226149A (en) | 1993-02-02 | 1993-02-02 | Liquid atomizer |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5015167AJPH06226149A (en) | 1993-02-02 | 1993-02-02 | Liquid atomizer |
| Publication Number | Publication Date |
|---|---|
| JPH06226149Atrue JPH06226149A (en) | 1994-08-16 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5015167APendingJPH06226149A (en) | 1993-02-02 | 1993-02-02 | Liquid atomizer |
| Country | Link |
|---|---|
| JP (1) | JPH06226149A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1048358A3 (en)* | 1999-04-29 | 2001-11-21 | Genio Migliorati | Water atomizing nozzle of impact type for dust suppression |
| US8096280B2 (en)* | 2005-02-04 | 2012-01-17 | AADI Inc. | Fuel injection system and fuel injector with improved spray generation |
| JP4927999B2 (en)* | 2010-06-29 | 2012-05-09 | ヤマトプロテック株式会社 | Liquid spray nozzle and liquid spray system |
| KR101320420B1 (en)* | 2007-04-16 | 2013-10-22 | 주식회사 에코닉스 | Injector And Decreasing Device of Exhaust Gas having it |
| JP2015516870A (en)* | 2012-03-23 | 2015-06-18 | スリーエム イノベイティブ プロパティズ カンパニー | Spray gun barrel with inseparable nozzle |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1048358A3 (en)* | 1999-04-29 | 2001-11-21 | Genio Migliorati | Water atomizing nozzle of impact type for dust suppression |
| US8096280B2 (en)* | 2005-02-04 | 2012-01-17 | AADI Inc. | Fuel injection system and fuel injector with improved spray generation |
| KR101320420B1 (en)* | 2007-04-16 | 2013-10-22 | 주식회사 에코닉스 | Injector And Decreasing Device of Exhaust Gas having it |
| JP4927999B2 (en)* | 2010-06-29 | 2012-05-09 | ヤマトプロテック株式会社 | Liquid spray nozzle and liquid spray system |
| JP2015516870A (en)* | 2012-03-23 | 2015-06-18 | スリーエム イノベイティブ プロパティズ カンパニー | Spray gun barrel with inseparable nozzle |
| US11167298B2 (en) | 2012-03-23 | 2021-11-09 | 3M Innovative Properties Company | Spray gun barrel with inseparable nozzle |
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