WO1991002594A1 - Nozzle for jetting self-vibratory fluid stream exhibiting high cleaning efficiency by varying the shape of output port - Google Patents
Nozzle for jetting self-vibratory fluid stream exhibiting high cleaning efficiency by varying the shape of output port Download PDFInfo
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- WO1991002594A1 WO1991002594A1 PCT/JP1990/000994 JP9000994W WO9102594A1 WO 1991002594 A1 WO1991002594 A1 WO 1991002594A1 JP 9000994 W JP9000994 W JP 9000994W WO 9102594 A1 WO9102594 A1 WO 9102594A1
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- self
- jet
- nozzle
- stream
- claw
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/08—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape of pulsating nature, e.g. delivering liquid in successive separate quantities ; Fluidic oscillators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
- F15C1/00—Circuit elements having no moving parts
- F15C1/22—Oscillators
Definitions
- the present invention is directed to an injection nozzle that performs self-oscillation by the Ryutai itself, and particularly has a rounded or rounded parallel portion in the output boat of the injection nozzle.
- Conventional water sprinklers use a method that directly sprays water from a large number of holes, such as a plow, and a spray nozzle, such as a sub-linker. There is a method of spraying water by mechanically moving a nozzle.
- the jet flows inside the injection nozzle.
- the main nozzle has a side wall for forming vortices on the left and right sides of the stream, a side wall, and a diverter and a diffuser for the jet following the side wall. The difference between the left and right vortices created between the side wall and the jet causes the jet to bend, causing self-oscillation, and diffuses the jet, thereby widening the jet.
- There is a watering device that sprays over an angle.
- the present invention is capable of performing high-frequency self-oscillation with a stable jet from a main nozzle, and has a small outflow loss and a small characteristic change due to wear.
- the purpose is to provide no injection nozzles.
- the outboard is provided by providing a round or a straight portion with a round blank at the output boat to reduce the outflow loss of the jet. It is characterized by improving the efficiency and eliminating the characteristic change due to wear.
- the cross section of the output boat is made to have a concave curve, and in the second invention, Similarly, it is characterized by improving the outflow efficiency by reducing the outflow loss of the jet and eliminating the change in characteristics due to wear.
- the characteristics include watering angle, watering distribution, runoff characteristics and so on.
- FIG. 1 is an exploded perspective view of a self-oscillating injection nozzle according to a first embodiment of the present invention
- FIG. 2 is a front view of an assembly drawing thereof
- FIG. 3 is another embodiment of the first invention.
- Fig. 4 is an exploded perspective view of the example
- Fig. 4 is a front view of the assembled product
- Figs. 5 (a) and (b) are an assembled view of the second invention and its b-b 'cross-sectional view.
- FIG. 1 is an exploded perspective view of an embodiment of the invention of the second aspect of the present invention.
- Figure 2 is a front view of a self-oscillating nozzle that ties it up.
- This device consists of a plate C with a supply boat 1, a main nozzle 2 connected to the supply boat 1 to create a jet, and left and right side walls 3 on which the main nozzle 2 opens. 3 ', and an output board having left and right claws 4, 4' connected to the left and right side walls 3, 3 'respectively, and having rounded R.
- the plate B having the hole 5 and the plate having the air holes G and 6 ′ are assembled by being overlapped.
- FIG. 3 is an exploded perspective view of another embodiment of the invention of FIG. 2, and FIG. 4 is a front view of the assembly, and the right and left claws 4, 4 'are rounded with a radius R. Following the respective roundness, the straight section 7, 7 'and the end of the outlet following the straight section have the Hanka R roundness, respectively.
- FIG. 5 (a) is an assembly drawing of an embodiment of the second invention of the present invention
- FIG. 5 (b) is a bb sectional view thereof.
- the cross section from the pawl portions 4 and 4 'of the output boat 5 to the outer linear portions 7 and 7' is concave. It is processed so that it becomes.
- the outflow loss of the flow is reduced and the outflow efficiency is increased, and the characteristics do not change due to wear.
- first invention and the second invention are combined to form a concave curve with a rounded pawl portion, and these effects are combined, and the invention is combined. The effect becomes more pronounced.
- the self-oscillating injection nozzle of the present invention has a conventional self-oscillation injection nozzle with a rounded output port or a rounded edge at the end.
- the following effects can be obtained by providing the straight portion and making the cross section of the output boat concave.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
- Cleaning In General (AREA)
- Special Spraying Apparatus (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
A nozzle for jetting self-vibratory fluid stream, which comprises a main nozzle for forming a jet stream, side walls for producing eddies on the right and left sides of the jet stream while preventing the stream from sticking thereto, and claw-like portions contiguous to the side walls for dividing and dispersing the jet stream, so as to adapt the jet stream to curve to cause self-vibration by means of alternately generated eddies in the right or left space between the side wall and the jet stream and pressure difference caused by absorptive effect arising from wake, and to disperse the jet stream with the claw-like portions for spraying the fluid around widely, is very useful as a jet nozzle for the water spraying device and cleaning machine. Recognizing the importance of the claw-like portions at the outlet port of the self-vibratory fluid stream jetting nozzle as above, this invention provides a self-vibratory stream jetting nozzle usable for a long term, in which the claw-like portion is rounded or provided with a straight linear part rounded at the end thereof or the cross-section of the output port is curved inwardly so that flowing efficiency is raised with flowing loss reduced and variation in characteristics resulting from wear of the claw-like portion may be prevented.
Description
-ト 明 書 -G
出-カ ボー ト の 形状を 変 え 流 出効率を 高め た 己 発振噴射 ノ ズル 技術分野 Self-oscillation injection nozzles with a modified output boat shape and improved discharge efficiency
こ の発明 は琉体 自 身 に よ り 自 己 発振を 行 う 噴射 ノ ズル に開 し、 特 に噴射 ノ ズルの 出 力 ボー 卜 に 丸み、 あ る い は、 丸 みのつ い た 平行部 を 設 け、 ま た、 出 力 ボー ト の断面形状 を 凹曲線に す る こ と に よ り 、 流出 効率を 高め ナ: 可動都分 を 持 た な い 自 己発振噴射 ノ ズル に 関す る 背景技術 The present invention is directed to an injection nozzle that performs self-oscillation by the Ryutai itself, and particularly has a rounded or rounded parallel portion in the output boat of the injection nozzle. By setting the cross section of the output boat to a concave shape, the outflow efficiency can be increased, and the background of self-oscillating injection nozzles without movable parts Technology
従来の散水裝 置 （ 噴射 ノ ズルを含む ） は、 じ ょ う ろ の よ う に多数 の孔 か ら 直接水 を 噴射 す る 方式の も の、 ス ブ リ ン ク ラ の よ う に 噴射 ノ ズ ルを 機械的 に 動か し て 水を 散布す る 方式のも のな どがあ る。 こ れ ら の他、 日 本特公昭 4 9 一 1 9 1 6 号、 日 本特公眧 5 0 — 6 6 4 4 号 な どに 開示 さ れた よ う に、 噴射 ノ ズルの 内部 に 噴流を作 る 主 ノ ズル と、 喰流の左右両側 に 渦を 作 る た めの側壁 と 、 こ の側壁 と、 こ の側壁 に続 い て 噴流を 分流、 拡散 さ せ る つ め と を 有 し、 側壁 と 噴流 と の 間 に作 ら れ る 左右の渦 の相違 に よ り 噴流を 曲 げ て 自 己発振を 起 こ さ せ、 かつ、 つ め に よ っ て 噴流を拡散 さ せ て 広 い 角度 に わ た っ て 散布 す る 方式の 散水装置が あ る。 Conventional water sprinklers (including spray nozzles) use a method that directly sprays water from a large number of holes, such as a plow, and a spray nozzle, such as a sub-linker. There is a method of spraying water by mechanically moving a nozzle. In addition, as disclosed in Japanese Patent Publication No. 49-191, Japanese Patent Publication No. 50-664, etc., the jet flows inside the injection nozzle. The main nozzle has a side wall for forming vortices on the left and right sides of the stream, a side wall, and a diverter and a diffuser for the jet following the side wall. The difference between the left and right vortices created between the side wall and the jet causes the jet to bend, causing self-oscillation, and diffuses the jet, thereby widening the jet. There is a watering device that sprays over an angle.
こ れ ら従来の散水装置の う ち、 じ ょ う ろ の よ う に 多数の孔か ら 直 接永 を 噴出 さ せ る 方式の も の では、 孔 に ごみがつ ま り やす く 、 ま た 琉出抵抗が大 き ¾ ため水の到達距艫が短 い な どの 欠点があ つ す：。 ス プ リ ン ク ラ の よ う に噴射ノ ズルを 機械的 に動かす 方式では、 機械的 可動部分が損傷 し た り «造が複雑 にな っ て設備費が髙 く な る な どの 欠点があ っ た。 さ ら に、 特公眧 4 9一 1 9 1 6 号、 特公昭 5 0 — 6 6 4 4 号な どに 開示さ れた 自 己発振方 式の散水装置では、 噴流が出 カボー ト のつめ に衝突する こ と に よ る エネ ル ギ損失が多 く 、 さ ら に つめの摩耗 に よ る 特性変化等の欠点が あ っ た。 Of these conventional watering devices, the method of directly ejecting elongation from a large number of holes, such as a backdrop, makes it easy for the holes to be clogged with debris. There are drawbacks such as the short reach of the stern due to the large resistance of Ryuide. The method of mechanically moving the injection nozzle, such as a sprinkler, has disadvantages such as damage to mechanically movable parts and increased complexity and construction costs. I did. In addition, in the self-oscillation type watering device disclosed in Japanese Patent Publication No. 491-1916, Japanese Patent Publication No. 50-6644, etc., a jet flows out of the boat. There was a lot of energy loss due to collisions with the tires, and further, there were disadvantages such as a change in characteristics due to the second wear.
本発明 は、 主 ノ ズルか ら の噴流が安定 し て 高周 波の自 己発振を行 う こ と がで き、 かつ、 流出 損 失が少な く 、 摩耗に よ る特性変化も少
ない 噴射ノ ズルを提供する こ と を 目的 と する。 INDUSTRIAL APPLICABILITY The present invention is capable of performing high-frequency self-oscillation with a stable jet from a main nozzle, and has a small outflow loss and a small characteristic change due to wear. The purpose is to provide no injection nozzles.
発明の開示 Disclosure of the invention
本発明の自 己発振噴射ノ ズルは、 第 I の発明では、 出力ボー ト に 丸眛、 る いは丸眛のつい た直線部を 設け、 噴流の流出損失を減少 する こ と に よ り 流出効率を 高める と と も に、 摩耗に よ る特性変化を な く し た こ とを特徴と し、 ま た、 第 2 の発明では出力ボー ト の断面 を凹曲線に し、 第 ] の発明 と 同様 に、 噴流の流出損失を減少する こ と に よ り 流出効率を高める と と も に、 摩耗に よ る特性の変化をな く し た こ とを特徴 と する。 こ こ で、 特性 と は、 散水角度、 散水分布、 流出特性な どを い う。 In the self-oscillation injection nozzle of the present invention, in the first invention, the outboard is provided by providing a round or a straight portion with a round blank at the output boat to reduce the outflow loss of the jet. It is characterized by improving the efficiency and eliminating the characteristic change due to wear. In the second invention, the cross section of the output boat is made to have a concave curve, and in the second invention, Similarly, it is characterized by improving the outflow efficiency by reducing the outflow loss of the jet and eliminating the change in characteristics due to wear. Here, the characteristics include watering angle, watering distribution, runoff characteristics and so on.
こ のよ う に、 流体自身に よ り 自 己発振を行 う噴射ノ ズルにお い て 出力ポー ト のつめの部分に 丸味、 あ る いは端部に丸味のつい た直線 部を設ける こ と に よ り、 鋭角のつめと それに続く 直線部を有する従 来の 自 己発振ノ ズルの出力 ボー ト に比べ、 は く 離ゃ縮琉がお さ え ら れ、 流出損失が減少 し、 さ ら に付着作用が増 大す るので散水角度も 増大する。 その う ぇ縻耗に よ る変化が少ないので長時間にわ た っ て 安定 し た発振が続け られる。 In this way, in the injection nozzle that performs self-oscillation by the fluid itself, it is necessary to provide a rounded portion at the end of the output port or a rounded straight portion at the end. As a result, compared with the output boat of a conventional self-oscillation nozzle having an acute-angled nail and a straight line portion following the same, the separation loss and the runoff loss are reduced, and the runoff loss is reduced. In addition, the sprinkling angle increases because the adhesion action increases. Since there is little change due to chylous wear, stable oscillation can be continued for a long time.
ま た、 従来の 自 己発振ノ ズルの出力 ボー ト のつめ、 お よびこ れに 続 く 直棟部の断面を凹曲線 に して も、 同様に流出損失を減少させ、 流出量を増大す る こ とがで き る。 さ ら に上記 2 つ の方法を合成して 出力ポー ト のつめの部分に丸眛、 あ る いは丸味のついた直線部を設 け、 こ れらの断面を凹曲線 に してやれば上記の効果が一層増大する 図面の簡単な説明 Similarly, if the cross section of the output boat of a conventional self-oscillating nozzle and the straight section following it are concave, the outflow loss is reduced and the outflow is increased as well. You can do it. In addition, the above two methods are combined to form a round or rounded straight part at the end of the output port, and if these cross sections are made concave, the above described method can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS
第 1 図は本発明の自 己発振噴射ノ ズルの第 1 の発明の一実施倂の 分解斜視図、 第 2 図はその組立図の正面図、 第 3 図は第 1 の発明の 別の実旃例の分解斜視図、 第 4 図はその組立品の正面図、 ¾ 5 図 （ a ) 、 ( b ) は第 2 の発明の組立図 と その b—— b ' 断面図であ る。 FIG. 1 is an exploded perspective view of a self-oscillating injection nozzle according to a first embodiment of the present invention, FIG. 2 is a front view of an assembly drawing thereof, and FIG. 3 is another embodiment of the first invention. Fig. 4 is an exploded perspective view of the example, Fig. 4 is a front view of the assembled product, and Figs. 5 (a) and (b) are an assembled view of the second invention and its b-b 'cross-sectional view.
発明を実施する ための最良の形態 BEST MODE FOR CARRYING OUT THE INVENTION
本発明を よ り 詳細に説述する ために、 添付の図面に し たがつ て こ
れを 説明 す る。 BRIEF DESCRIPTION OF THE DRAWINGS To describe the invention in more detail, reference is made to the accompanying drawings, in which: FIG. Explain this.
1 図 は.本発 明 の第 ] の 発明 の 一実施例の分解斜視図 であ り 、 第 FIG. 1 is an exploded perspective view of an embodiment of the invention of the second aspect of the present invention.
2 図 は こ れを 紐 み立 て た 自 己発振噴 ノ ズル の正面図で あ る。 Figure 2 is a front view of a self-oscillating nozzle that ties it up.
こ の装置 は、 供給ボー ト 1 を 有す る 板 C と 、 供給ボー ト 1 に接続 し 噴流を 作 る 主 ノ ズル 2 と、 こ の主 ノ ズル 2 が開 U す る 左右 の側壁 3 、 3 ' に よ り 形成さ れ た 空氕室 と、 左右の側壁 3 、 3 ' に そ れぞ れ接続 し 丸味 R を 持つ左右 の つめ相 当 部 4 、 4 ' が設 け ら れ た 出力 ボー ト 5 を 有す る 板 B と、 空気穴 G 、 6 ' を 有す る 板 Λ とが重ね合 わ さ れて組み立 て ら れ て い る。 This device consists of a plate C with a supply boat 1, a main nozzle 2 connected to the supply boat 1 to create a jet, and left and right side walls 3 on which the main nozzle 2 opens. 3 ', and an output board having left and right claws 4, 4' connected to the left and right side walls 3, 3 'respectively, and having rounded R. The plate B having the hole 5 and the plate having the air holes G and 6 ′ are assembled by being overlapped.
ま た、 第 3 図 は第 〗 の発 明 の別 の実施例の分解斜視図、 第 4 図 は その組立品 の正面図で、 左右のつ め相 当部 4 、 4 ' は半径 R の丸味 を も ち、 そ れぞ れの丸味に 続 い て 直線 部 7、 7 ' と そ れ に続 く 出 口 端部 に そ れぞれ 半佳 R の丸 味 を も っ て い る。 FIG. 3 is an exploded perspective view of another embodiment of the invention of FIG. 2, and FIG. 4 is a front view of the assembly, and the right and left claws 4, 4 'are rounded with a radius R. Following the respective roundness, the straight section 7, 7 'and the end of the outlet following the straight section have the Hanka R roundness, respectively.
こ れ ら の 自 己 発振噴射ノ ズルの発振動作に つ い て は特公昭 4 9 一 1 9 1 6 号等 に 開示 さ れ た も の と ほぼ 同様で出力 ボー 卜 5 の幅は噴 流の広が り 幅 よ り わずか に 広 く し て あ り 供給 ボー 卜 1 か ら 供給 さ れ た液体 は主 ノ ズ ル 2 か ら 出 て 噴流 と な り 、 付着 し た 側の側壁 3 、 あ る い は 3 ' と の 間 に渦を 生ず る。 反対側の側壁 と の 間の空気 は噴流 に誘 われて 流出 し 噴流の左 右 に圧力 差 を 生 じ 噴流 は右 ま た は左 に ま げ ら れ る。 こ の よ う な 動作 を 繰 り 返す こ と に よ り 、 安定 し た 発振を 続 け る。 こ の場 合つ め相 当 部 4、 4 ' が鋭角 では な く 、 半径 R の丸 味を 有 し て い る ので、 流出 損失が減少 し 流出効率が高め ら れ る。 ま た鋭 い つめを 有 し て い る 場 合 に は、 つ めが摩耗す る と 散水角度、 散 水分布、 流出特性等の特性が大き く 変化す るが、 つ め に最初か ら丸 味の つ い て い る 場合 に は摩耗 に よ っ て 丸味が大幅 に.変わ る こ と はな く 、 こ れ ら の特性が変化す る こ と はな い。 ' The oscillating operation of these self-oscillating injection nozzles is almost the same as that disclosed in Japanese Patent Publication No. 49-191 / 16, etc., and the width of the output boat 5 is the same as that of the jet. The liquid supplied from the supply boat 1 comes out of the main nozzle 2 and becomes a jet, and there is a side wall 3 where the liquid adheres. Or vortex between 3 '. The air between the opposite side wall is induced by the jet and flows out, creating a pressure difference on the left and right sides of the jet, and the jet is spread to the right or left. By repeating such an operation, stable oscillation can be maintained. In this case, since the corresponding parts 4 and 4 'are not acute angles but have a radius R, the outflow loss is reduced and the outflow efficiency is improved. Also, if the nail has a sharp nail, the wear angle of the nail will greatly change the watering angle, watering distribution, runoff characteristics, etc. If the taste is good, the roundness does not change significantly due to wear, and these properties do not change. '
第 5 図 （ a ) は本発明 の.第 2 の発明 の一実施例 の組立図で、 第 5 図 （ b ) は その b — b 断面 図 であ る。 こ の発明で は 出力 ボー ト 5 の つめ部 4、 4 ' か ら外側の 直線部 7 、 7 ' に かけ て の断面が 凹 曲線
にな る よ う に加工 さ れ て い る。 こ の場合 に も 第 . I の発明 と 同様 に喷 流の流出損失が減少 し て 流 出 効率が高め ら れ る と と も に、 摩耗 に よ る特性の変化が な い p FIG. 5 (a) is an assembly drawing of an embodiment of the second invention of the present invention, and FIG. 5 (b) is a bb sectional view thereof. In this invention, the cross section from the pawl portions 4 and 4 'of the output boat 5 to the outer linear portions 7 and 7' is concave. It is processed so that it becomes. In this case as well, similar to the invention of the first aspect, the outflow loss of the flow is reduced and the outflow efficiency is increased, and the characteristics do not change due to wear.
さ ら に、 第 1 の発明 と 第 2 の発明を 合成 し て、 つめ部 に丸味を つ け た 上で断面を 凹 曲線 にす る.と、 こ れ ら の効果が 合成 さ れて、 発明 の効果が一層顕著 にな る。 Further, the first invention and the second invention are combined to form a concave curve with a rounded pawl portion, and these effects are combined, and the invention is combined. The effect becomes more pronounced.
次 に特公昭 4 9一 1 9 1 6 号等 に開示 さ れ た従 来の自 己発振 ノ ズ ル と、 本発明の 自 己発振ノ ズルの比較実験の結果を示す。 Next, the results of a comparison experiment between the conventional self-oscillation nozzle disclosed in Japanese Patent Publication No. 49-191 / 16 and the self-oscillation nozzle of the present invention are shown.
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新たな用紙
産業状 の 利用 の 可能 性 New paper Possibility of industrial use
以 上説明 し た よ う に、 本 発明 の 自 己 発振噴射 ノ ズル は、 従 来の 自 己発振噴 ^ ノ ズ ル の 出 力 ボ ー ト に 丸味、 あ る い は、 端部 に丸味のつ い た 直線部を 設 け る こ と、 及び、 出力 ボー ト の断面を 凹曲線にする こ と に よ り 、 次 の効果が 得 ら れ る。 As described above, the self-oscillating injection nozzle of the present invention has a conventional self-oscillation injection nozzle with a rounded output port or a rounded edge at the end. The following effects can be obtained by providing the straight portion and making the cross section of the output boat concave.
( 1 ) 流出抵抗が格段 に 減少 し 流出 効率が高め ら れる。 (1) Outflow resistance is greatly reduced and outflow efficiency is improved.
( 2 ) 摩耗 に よ る 散水角 度、 散水分布、 琉 出特性等の特性変化が な く な る。 (2) Characteristics such as watering angle, watering distribution and drainage characteristics due to wear are eliminated.
( 3 ) つ め部 に丸眛を つ け る と と、 断面を 凹 曲線 に する こ と を 合成す れば、 一屑 そ の効果が 増 大す る。 (3) By adding round circles to the nails, if the cross section is made into a concave curve, the effect of each chip will increase.
し たがっ て、 こ れ ら の 自 己発振噴射 ノ ズルを散水装置や噴射洗浄 機に 応用すれば散水能力、 洗浄能力等が一層増大す る。
Therefore, if these self-oscillating injection nozzles are applied to sprinklers and jet washing machines, their sprinkling ability and washing ability will be further increased.
Claims
ψ,η 求 の 範 园 ψ, η The range of
1 ) 主ノ ズルか ら噴出す る主喷流の左右に空室を設け、 かつ出力 ボー 卜 の輻を噴流の拡が り よ り 大 き く し、 前記左右の空室に交互に 生ずる満と伴琉 に よ る吸出 し効果に も とずく 差圧に よ り 自己発振を 生ず る 自 己発握噴射ノ ズル にお いて、 1) Vacancies are provided on the left and right sides of the main stream ejected from the main nozzle, and the radiation of the output boat is made larger than the spread of the jet, so that the space generated alternately in the left and right vacancies And self-oscillating injection nozzles that generate self-oscillation due to differential pressure based on the suction effect of
前記出力ボー ト に丸味、 あ る いは端部に丸眛のつ いた直線部を設 け、 噴流の流出損失を減少する こ と に よ り 流出効率を高める と と も に、 摩耗に よ る特性変化を な く し たこ と を特徴と する自 己発振噴射 ノ ズル。 The output boat is provided with a rounded portion or a straight line with rounded edges at the ends to reduce the outflow loss of the jet and thereby increase the outflow efficiency, and also to reduce wear. A self-oscillating injection nozzle characterized by eliminating characteristic changes.
2 ) 主ノ ズルか ら噴出す る 生噴流の左右に空室を設け、 かつ出力 ポー 卜 の幅を噴流の拡が り よ り 大 き く し、 前記左右の空室に交互に 生ず る渦と伴流に よ る吸出 し効果にも とずく 差圧によ り 自己発振 生ずる 自 己発振噴射ノ ズル におい て、 2) Vacancies are provided on the left and right sides of the raw jet ejected from the main nozzle, and the width of the output port is made larger than the width of the jet, so that the left and right empty chambers are generated alternately. In the self-oscillating injection nozzle, which self-oscillates due to the differential pressure based on the suction effect of the vortex and wake,
前記出カボー ト の断面を 凹曲線に し、 噴流の流失損失を減少する こ と に よ り 流出効率を高め る と と も に摩耗に よ る特性の変化を な く し た こ とを特徴 と する 自 己発振噴射ノ ズル。
The cross section of the output boat is formed into a concave curve to reduce the loss of the jet, thereby improving the outflow efficiency, and eliminating the characteristic change due to wear. Yes Self-oscillation injection nozzle.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP90911712A EP0438599B1 (en) | 1989-08-15 | 1990-08-03 | Nozzle for jetting a self-vibratory fluid stream |
| DE69017645T DE69017645T2 (en) | 1989-08-15 | 1990-08-03 | NOZZLE FOR SPRAYING A SELF-SWINGING FLUID FLOW. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1/209615 | 1989-08-15 | ||
| JP1209615A JPH0661486B2 (en) | 1989-08-15 | 1989-08-15 | Self-oscillating injection nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1991002594A1 true WO1991002594A1 (en) | 1991-03-07 |
Family
ID=16575732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1990/000994 WO1991002594A1 (en) | 1989-08-15 | 1990-08-03 | Nozzle for jetting self-vibratory fluid stream exhibiting high cleaning efficiency by varying the shape of output port |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0438599B1 (en) |
| JP (1) | JPH0661486B2 (en) |
| DE (1) | DE69017645T2 (en) |
| DK (1) | DK0438599T3 (en) |
| WO (1) | WO1991002594A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4920233B2 (en) * | 2005-10-12 | 2012-04-18 | シヤチハタ株式会社 | Stamping device |
| JP4952143B2 (en) * | 2006-08-24 | 2012-06-13 | パナソニック株式会社 | Hand dryer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5621471Y2 (en) * | 1976-06-01 | 1981-05-21 | ||
| JPS6135866A (en) * | 1984-07-27 | 1986-02-20 | Nippon Soken Inc | Self-oscillation type fluid scattering element |
| JPS63172006A (en) * | 1987-01-07 | 1988-07-15 | Matsushita Electric Ind Co Ltd | Fluid oscillation element |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4210283A (en) * | 1978-09-11 | 1980-07-01 | Bowles Fluidics Corp | Dual pattern windshield washer nozzle |
| US4644854A (en) * | 1985-03-27 | 1987-02-24 | Bowles Fluidics Corporation | Air sweep defroster |
-
1989
- 1989-08-15 JP JP1209615A patent/JPH0661486B2/en not_active Expired - Lifetime
-
1990
- 1990-08-03 DE DE69017645T patent/DE69017645T2/en not_active Expired - Fee Related
- 1990-08-03 DK DK90911712T patent/DK0438599T3/en active
- 1990-08-03 EP EP90911712A patent/EP0438599B1/en not_active Expired - Lifetime
- 1990-08-03 WO PCT/JP1990/000994 patent/WO1991002594A1/en active IP Right Grant
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5621471Y2 (en) * | 1976-06-01 | 1981-05-21 | ||
| JPS6135866A (en) * | 1984-07-27 | 1986-02-20 | Nippon Soken Inc | Self-oscillation type fluid scattering element |
| JPS63172006A (en) * | 1987-01-07 | 1988-07-15 | Matsushita Electric Ind Co Ltd | Fluid oscillation element |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP0438599A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DK0438599T3 (en) | 1995-07-24 |
| DE69017645T2 (en) | 1995-07-06 |
| DE69017645D1 (en) | 1995-04-13 |
| EP0438599B1 (en) | 1995-03-08 |
| JPH0661486B2 (en) | 1994-08-17 |
| JPH0377660A (en) | 1991-04-03 |
| EP0438599A1 (en) | 1991-07-31 |
| EP0438599A4 (en) | 1992-04-08 |
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