JPH0471653A - Liquid injection nozzle - Google Patents

Liquid injection nozzle

Info

Publication number
JPH0471653A
JPH0471653A JP18107990A JP18107990A JPH0471653A JP H0471653 A JPH0471653 A JP H0471653A JP 18107990 A JP18107990 A JP 18107990A JP 18107990 A JP18107990 A JP 18107990A JP H0471653 A JPH0471653 A JP H0471653A
Authority
JP
Japan
Prior art keywords
nozzle
air
fluid
wall
liquid
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
Application number
JP18107990A
Other languages
Japanese (ja)
Inventor
Sakae Kato
栄 加藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FSK Corp
Original Assignee
FSK Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FSK Corp filed Critical FSK Corp
Priority to JP18107990A priority Critical patent/JPH0471653A/en
Publication of JPH0471653A publication Critical patent/JPH0471653A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To enhance the straight advance properties of fluid spouted from a nozzle by forming a part in which the flow of liquid is changed in the direction separated from the inside wall of the nozzle and also providing the intake port of air to the wall face of the nozzle in this part. CONSTITUTION:In a part 3 wherein the flow of liquid is changed in the direction separated from the inside wall of a nozzle, air is sucked from an air intake port 4 by the negative pressure formed to the inside of the nozzle. The layer 5 of air is formed around the fluid in the inside of the nozzle. This layer 5 of air is accelerated by friction of this fluid and blown out from the tip of the nozzle main body 1 together with the fluid. As a result, the fluid spouted from the nozzle becomes a state where its circumference is surrounded by the layer 5 of air. The air in the circumference is prevented from being entrained. The straight advance properties of fluid is enhanced and simultaneously the flight distance is increased.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は例えば散水用ノズルや洗浄用ノズルのように、
流体を遠くまで飛ばすことが求められるノズルとして用
いるに通した液体噴射ノズルに関するものである。
Detailed Description of the Invention (Industrial Application Field) The present invention is applicable to water spray nozzles, cleaning nozzles, etc.
This invention relates to a liquid injection nozzle that is used as a nozzle that is required to spray fluid over a long distance.

(従来の技術) 従来の液体噴射ノズルは、ノズル内壁と流体との間の抵
抗をできるだけ減少させるようになめらかな内壁面を持
ったものが普通である。
(Prior Art) Conventional liquid injection nozzles usually have a smooth inner wall surface so as to reduce the resistance between the inner wall of the nozzle and the fluid as much as possible.

ところがノズルの先端から噴出した流体はノズル出口付
近で周囲の空気を巻き込んで多くの渦を発生させるため
、噴出する流体の直進性が空気温によって阻害されると
同時に、周囲の空気との間に大きい摩擦抵抗を生じて飛
距離が低下する原因となっている。このように、ノズル
内壁をなめらかにしてノズルの内部における抵抗を減少
させても、ノズルから噴出した後の抵抗を減少させるこ
とはできず、また直進性を向上させることもできなかっ
た。
However, the fluid ejected from the tip of the nozzle entrains the surrounding air near the nozzle exit and generates many vortices, so the straightness of the ejected fluid is inhibited by the air temperature, and at the same time there is a gap between the fluid and the surrounding air. This creates a large amount of frictional resistance, which causes a reduction in flight distance. As described above, even if the internal wall of the nozzle is made smooth to reduce the resistance inside the nozzle, the resistance after ejecting from the nozzle cannot be reduced, nor can the straightness be improved.

(発明が解決しようとする課題) 本発明は上記したような従来の問題点を解決して、ノズ
ルから噴出する流体の直進性を高めることができ、また
それと同時に周囲の空気との間の摩擦抵抗を減少させて
飛距離を増大させることができる液体噴射ノズルを提供
するために完成されたものである。
(Problems to be Solved by the Invention) The present invention can solve the above-mentioned conventional problems and improve the straightness of the fluid ejected from the nozzle, and at the same time reduce friction with the surrounding air. This was completed to provide a liquid jet nozzle that can reduce resistance and increase flying distance.

(課題を解決するための手段) 上記の課題は、ノズル内壁に液体の流れがノズル内壁か
ら離れる方向に変化する部分を形成するとともに、この
部分のノズル壁面に空気取込口を設けたことを特徴とす
る液体噴射ノズルによって解決することができる。
(Means for solving the problem) The above problem is solved by forming a part on the nozzle inner wall where the flow of liquid changes in the direction away from the nozzle inner wall, and providing an air intake port on the nozzle wall surface in this part. This problem can be solved by the characteristic liquid injection nozzle.

以下に本発明を図示の実施例によって詳細に説明する。The present invention will be explained in detail below with reference to illustrated embodiments.

(実施例) 第1回は本発明の第1の実施例を示すもので、(1)は
ノズル本体であり、その先端部分のノズル内壁(2)を
段状に拡げることにより、ノズル本体(1)の内部を流
れる水等の液体の流れがノズル内壁(2)から離れる方
向に変化する部分(3)を形成しである。
(Example) The first example shows the first example of the present invention, in which (1) is a nozzle body, and by expanding the nozzle inner wall (2) at the tip part in a stepped manner, the nozzle body (1) is a nozzle body. A portion (3) is formed in which the flow of liquid such as water flowing inside the nozzle (1) changes in a direction away from the nozzle inner wall (2).

このように流線がノズル内壁(2)から離れる部分(3
)を設けると、この部分には負圧が生ずることとなる。
In this way, the part (3) where the streamline separates from the nozzle inner wall (2)
), negative pressure will be generated in this part.

(4)はこの部分(3)のノズル内壁(2)に形成され
た空気取込口である。空気取込口(4)は図示のように
ノズル内壁(2)の対向する2か所に形成しても、全周
に設けてもよい。
(4) is an air intake port formed in the nozzle inner wall (2) of this portion (3). The air intake ports (4) may be formed at two opposing locations on the nozzle inner wall (2) as shown in the figure, or may be provided all around the nozzle wall (2).

このように構成された第1の実施例の液体噴射ノズルは
、液体の流れがノズル内壁(2)から離れる方向に変化
する部分(3)においてノズルの内部に形成される負圧
によって空気取込口(4)から空気が吸引され、ノズル
内部の流体の周囲に空気の層(5)が形成される。そし
てこの空気の層(5)は流体との摩擦により加速され、
流体とともにノズル本体(1)の先端から噴出する。
The liquid injection nozzle of the first embodiment configured as described above is configured to take in air by the negative pressure formed inside the nozzle at the portion (3) where the liquid flow changes in the direction away from the nozzle inner wall (2). Air is sucked through the mouth (4) and a layer of air (5) is formed around the fluid inside the nozzle. This layer of air (5) is accelerated by friction with the fluid,
It is ejected from the tip of the nozzle body (1) together with the fluid.

この結果、ノズルから噴出する流体はその周囲を空気の
層(5)によって包まれた状態となり、従来のように周
囲の空気を巻き込むことによる渦の発生がなく、噴出す
る流体の直進性が阻害されることがない。また周囲の空
気との間の摩擦抵抗も減少し、飛距離を伸ばすこともで
きる。
As a result, the fluid ejected from the nozzle is surrounded by a layer of air (5), which eliminates the generation of vortices caused by the surrounding air being drawn in as in the conventional case, which impedes the straightness of the ejected fluid. never be done. It also reduces frictional resistance with the surrounding air, increasing flight distance.

第2図は本発明の第2の実施例を示すもので、ノズル本
体(1)を円弧状に湾曲させることにより流体に遠心力
を発生させ、ノズル本体(1)の内部の液体の流れを湾
曲の内側部分においてノズル内壁(2)から離れる方向
に変化させる構造となっている。
FIG. 2 shows a second embodiment of the present invention, in which centrifugal force is generated in the fluid by curving the nozzle body (1) in an arc shape, and the flow of liquid inside the nozzle body (1) is controlled. It has a structure in which the inner portion of the curve changes in a direction away from the nozzle inner wall (2).

そしてこの部分(3)に空気取込口(4)が形成されて
いる。この場合には空気取込口(4)は湾曲の内側部分
に1個だけ形成すればよく、吸引された空気は流体の全
周に回り込んで空気層(5)を形成する。
An air intake port (4) is formed in this portion (3). In this case, only one air intake port (4) needs to be formed on the inner side of the curve, and the sucked air goes around the entire circumference of the fluid to form an air layer (5).

このほか、液体の流れをノズル内壁(2)から離れる方
向に変化させるための手段としては、例えばノズル内壁
(2)に小さい突起を形成してもよく、この部分(3)
の具体的な形態は種々に変化させることが可能である。
In addition, as a means for changing the flow of liquid away from the nozzle inner wall (2), for example, a small protrusion may be formed on the nozzle inner wall (2), and this portion (3)
The specific form of can be varied in various ways.

(発明の効果) 以上に説明したように、本発明はノズル内壁に液体の流
れがノズル内壁から離れる方向に変化する部分を設け、
この部分に発生する負圧を利用して空気取込口から空気
を吸引し、流体の周囲を空気の層で包むようにしたもの
である。この結果、本発明の流体噴射ノズルでは周囲の
空気の巻き込みがなくなり、流体の直進性が向上すると
同時に飛距離も増加することとなる。このため、散水用
ノズルや洗浄用ノズルのように、流体を遠くまで飛ばす
ことが求められるノズルとして用いるに通したものとな
る。
(Effects of the Invention) As explained above, the present invention provides a portion on the inner wall of the nozzle where the flow of liquid changes in the direction away from the inner wall of the nozzle,
The negative pressure generated in this part is used to suck air from the air intake port, and the fluid is surrounded by a layer of air. As a result, the fluid injection nozzle of the present invention eliminates the entrainment of surrounding air, improving the straightness of the fluid and increasing the flight distance. Therefore, it is suitable for use as a nozzle that is required to spray fluid over a long distance, such as a water spray nozzle or a cleaning nozzle.

よって本発明は従来の問題点を解決したものとして、産
業の発展に寄与するところは極めて大きいものである。
Therefore, the present invention can greatly contribute to the development of industry as it solves the problems of the prior art.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の第1の実施例を示す断面図、第2図は
第2の実施例を示す断面図である。 (2):ノズル内壁、(3)・液体の流れがノズル内壁
から離れる方向に変化する部分、(4):空気取込口。
FIG. 1 is a sectional view showing a first embodiment of the present invention, and FIG. 2 is a sectional view showing a second embodiment. (2): Nozzle inner wall, (3) - Portion where the flow of liquid changes in the direction away from the nozzle inner wall, (4): Air intake port.

Claims (1)

【特許請求の範囲】[Claims] ノズル内壁(2)に液体の流れがノズル内壁から離れる
方向に変化する部分(3)を形成するとともに、この部
分のノズル壁面に空気取込口(4)を設けたことを特徴
とする液体噴射ノズル。
A liquid jet characterized by forming a part (3) on the nozzle inner wall (2) where the flow of liquid changes in a direction away from the nozzle inner wall, and providing an air intake port (4) on the nozzle wall surface of this part. nozzle.
JP18107990A 1990-07-09 1990-07-09 Liquid injection nozzle Pending JPH0471653A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18107990A JPH0471653A (en) 1990-07-09 1990-07-09 Liquid injection nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18107990A JPH0471653A (en) 1990-07-09 1990-07-09 Liquid injection nozzle

Publications (1)

Publication Number Publication Date
JPH0471653A true JPH0471653A (en) 1992-03-06

Family

ID=16094445

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18107990A Pending JPH0471653A (en) 1990-07-09 1990-07-09 Liquid injection nozzle

Country Status (1)

Country Link
JP (1) JPH0471653A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009126228A (en) * 2007-11-20 2009-06-11 Japan Climate Systems Corp Air-conditioning device for vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6467273A (en) * 1987-09-04 1989-03-13 Matsushita Electric Works Ltd Shower nozzle for message
JPH01194955A (en) * 1987-10-05 1989-08-04 Kenzo Yamamoto Nozzle for spraying liquid

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6467273A (en) * 1987-09-04 1989-03-13 Matsushita Electric Works Ltd Shower nozzle for message
JPH01194955A (en) * 1987-10-05 1989-08-04 Kenzo Yamamoto Nozzle for spraying liquid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009126228A (en) * 2007-11-20 2009-06-11 Japan Climate Systems Corp Air-conditioning device for vehicle

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