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JPH06105083B2 - Fluid oscillation element - Google Patents
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JPH06105083B2 - Fluid oscillation element - Google Patents

Fluid oscillation element

Info

Publication number
JPH06105083B2
JPH06105083B2 JP61095256A JP9525686A JPH06105083B2 JP H06105083 B2 JPH06105083 B2 JP H06105083B2 JP 61095256 A JP61095256 A JP 61095256A JP 9525686 A JP9525686 A JP 9525686A JP H06105083 B2 JPH06105083 B2 JP H06105083B2
Authority
JP
Japan
Prior art keywords
fluid
nozzle
bypass passage
opening
jet flow
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.)
Expired - Fee Related
Application number
JP61095256A
Other languages
Japanese (ja)
Other versions
JPS62251508A (en
Inventor
貫造 村澤
恭男 前田
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP61095256A priority Critical patent/JPH06105083B2/en
Publication of JPS62251508A publication Critical patent/JPS62251508A/en
Publication of JPH06105083B2 publication Critical patent/JPH06105083B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Nozzles (AREA)

Description

【発明の詳細な説明】Detailed Description of the Invention 【技術分野】【Technical field】

本発明は、流体の噴射方向をその噴射方向と直角な方向
へ交互に横振動させながら噴出させる流体発振素子に関
する。
The present invention relates to a fluid oscillation element that ejects a fluid while alternately vibrating the ejection direction of the fluid in a direction perpendicular to the ejection direction.

【背景技術】[Background technology]

従来より流体の噴射方向を横振動させる流体発振素子
A′の第4図(a)(b)のような機構が知られてお
り、これは例えば特公昭51-22207号公報や特開昭58-110
731号公報などに開示されているように、シャワーや温
水洗浄装置の吐水ノズルなどに実用化されている。とこ
ろが、このような流体発振素子A′は、噴射方向切換前
後の定常流れの状態では流体発振機構1′を形成してい
る流路の側壁4′,4″に密着するように流れており、し
かも切換動作は速やかであるために、発振を繰り返す噴
射流は第4図(b)に示すようにほとんどノズル口3の
両端を流れ、中央部分にはほとんど噴射流が無い状態と
なっている。このため、流体発振素子A′を洗浄用など
の用途に用いた場合にはノズル口3の中央部に対向する
箇所での洗浄が不十分になるという問題があった。
Conventionally, a mechanism as shown in FIGS. 4 (a) and 4 (b) of a fluid oscillating device A'which laterally vibrates the jetting direction of a fluid has been known. -110
As disclosed in Japanese Patent No. 731, etc., it has been put to practical use as a water discharge nozzle of a shower or a hot water washing device. However, such a fluid oscillating element A'flows so as to come into close contact with the side walls 4 ', 4 "of the flow path forming the fluid oscillating mechanism 1'in the steady flow state before and after the switching of the injection direction, Moreover, since the switching operation is quick, the jet flow that repeatedly oscillates flows almost at both ends of the nozzle port 3 as shown in FIG. 4 (b), and there is almost no jet flow in the central portion. Therefore, when the fluid oscillating device A'is used for cleaning or the like, there is a problem that cleaning is insufficient at a portion facing the central portion of the nozzle opening 3.

【発明の目的】[Object of the Invention]

本発明は叙上のような技術的背景に鑑みて為されたもの
であり、その目的とするところはノズル口から噴射され
る噴射流の分布を均一にすることにある。
The present invention has been made in view of the above technical background, and an object thereof is to make the distribution of the jet flow jetted from the nozzle port uniform.

【発明の開示】DISCLOSURE OF THE INVENTION

本発明の流体発振素子は、流体の自己作用により流体の
噴射方向と直角な方向へ流体を振動させる流体発振機構
1が内部に形成された流体発振素子において、流体を噴
射させる長溝スリット状のノズル口3の幅寸法が両端部
では狭く中央部では広く形成されて、このノズル口3の
両端部の開口率が中央部の開口率より小さくされたこと
を特徴とするものである。しかして、ノズル口3の両端
部の開口率を減少させてあるので、ノズル口3の両端部
から吐出される噴射流が減少し、その分ノズル口3の中
央部からの噴射流が増加してノズル口3から噴射される
噴射流の分布が均一になるものである。 以下本発明の実施例を添付図に基いて詳述する。流体発
振素子Aの内部の流体発振機構1を第1図により説明す
る。ケーシング2の上面には流体を圧入するための注水
口5が設けられており、注水口5の先には円形の流入室
10が設けられており、流入室10の先には内ノズル部11を
介して紡錘状に膨らんだ内部流路6が形成され、内部流
路6の先にはラッパ状に広がった噴射口7が設けられて
いて噴射口7の広くなった先端がノズル口3として外部
に開口している。また、内部流路6の基端部の両側面と
噴射口7の両側面とを連通させるように内部流路6の両
側には夫々右バイパス路8と左バイパス路9(ここで、
左右は説明を判り易くするための便宜的なものにすぎ
ず、第1図(b)に向かって左右の方向をさすものとす
る。)とが形成されており、右バイパス路8の基端部8a
と左バイパス路9の基端部9aとは内ノズル部11と内部流
路6との間で開口し、右バイパス路8の先端部8b及び左
バイパス路9の先端部9bが噴射口7の側面で開口してい
る。また、ノズル口3の両端部には薄い略三角の制御板
12を設けて開口厚みを中央部よりも狭くしてあり、両端
部の開口率(流路断面積)を中央部の開口率よりも小さ
くしてある。 しかして、内ノズル部11から内部流路6へ吐出された水
が、いま第2図(a)に示すように、壁面付着効果によ
り内部流路6の左の側壁4に付着して流れ、更に噴射口
7の右の側壁4に沿って流れ、ノズル口3から右方向へ
吐出されているとする。この時、流体のエジェクタ効果
により、右バイパス路8の基端部8a、先端部8b及び左バ
イパス路9の基端部9aは負圧となって右バイパス路8及
び左バイパス路9内の流体を吸引されており、右バイパ
ス路8では基端部8aと先端部8bとで負圧が釣り合うため
に強い流れは生じないが、左バイパス路9では基端部9a
のみが負圧となって左バイパス路9内の流体は基端部9a
側へ強く引き抜かれる。これにより、内部流路6の基端
部では左から右へ向けて流体の流れが生じ、内部流路6
の左の側壁4に沿って流れていた流体は右方向への力を
受ける。同時に左バイパス路9の先端部9bでは流体が離
れて流れているために、ここから左バイパス路9内へ空
気が吸入され、この空気が左バイパス路9の基端部9aか
ら内部流路6へ流出すると、左の側壁4では空気により
側壁4に付着していた流体が剥がされ、この結果流体は
第2図(b)に示すように流路を変更し、内部流路6の
右の側壁4から噴射口7の左の側壁4に沿って流れ、ノ
ズル口3から左方向へ向けて吐出される。流体発振素子
Aは上記のような作用を繰り返すことにより、ノズル口
3から噴出水の方向を一定周期で交互に横振動させなが
ら吐出されるのである。しかも、ノズル口3から流体が
噴射される時、噴射流は両端では制御板12により妨げら
れて十分に流れず、両端部から流れにくくなった分だけ
中央部から噴射され、これによりノズル口3から噴射流
が均一に噴射されることになるのである。 尚、この制御板12の厚みを次第に薄くすれば、両端部で
の噴射流が強くなり、逆に制御板12の厚みを次第に厚く
すれば中央部での噴射流が強くなって噴射流が均一にな
って行く。したがって、この制御板12の厚みを調整する
ことによりノズル口3全体での均一な噴射流を得られ、
あるいは噴射流の両端と中央部との強さを制御できるも
のである。
The fluid oscillating device of the present invention is a long groove slit nozzle for ejecting a fluid in a fluid oscillating device in which a fluid oscillating mechanism 1 for vibrating the fluid in a direction perpendicular to the jet direction of the fluid by the self-action of the fluid is formed. The width dimension of the mouth 3 is narrow at both ends and wide at the center, and the opening ratio at both ends of the nozzle port 3 is smaller than the opening ratio at the center. Since the opening ratio of both ends of the nozzle port 3 is reduced, the jet flow discharged from both ends of the nozzle port 3 decreases, and the jet flow from the central part of the nozzle port 3 increases accordingly. The distribution of the jet flow jetted from the nozzle port 3 becomes uniform. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The fluid oscillation mechanism 1 inside the fluid oscillation element A will be described with reference to FIG. A water injection port 5 for pressurizing a fluid is provided on the upper surface of the casing 2, and a circular inflow chamber is provided at the tip of the water injection port 5.
10 is provided, a spindle-shaped internal flow path 6 is formed at the tip of the inflow chamber 10 through the inner nozzle portion 11, and a spray port 7 that spreads like a trumpet is provided at the end of the internal flow path 6. Is provided, and the widened tip of the injection port 7 is opened to the outside as the nozzle port 3. Further, the right bypass passage 8 and the left bypass passage 9 (here, respectively) are provided on both sides of the internal flow path 6 so that both side surfaces of the base end portion of the internal flow path 6 and both side surfaces of the injection port 7 are communicated with each other.
The left and right are merely for convenience of making the description easy to understand, and the left and right are referred to toward FIG. 1 (b). ) And are formed, and the base end portion 8a of the right bypass passage 8 is formed.
And the base end portion 9a of the left bypass passage 9 open between the inner nozzle portion 11 and the internal flow passage 6, and the tip portion 8b of the right bypass passage 8 and the tip portion 9b of the left bypass passage 9 are It opens on the side. Further, a thin and substantially triangular control plate is provided at both ends of the nozzle port 3.
12, the opening thickness is made narrower than the central portion, and the opening ratio (flow passage cross-sectional area) at both ends is made smaller than the central opening ratio. Then, the water discharged from the inner nozzle portion 11 to the internal flow path 6 adheres to the left side wall 4 of the internal flow path 6 due to the wall surface adhesion effect and flows, as shown in FIG. 2 (a). Further, it is assumed that the liquid flows along the right side wall 4 of the jet port 7 and is discharged rightward from the nozzle port 3. At this time, due to the ejector effect of the fluid, the base end portion 8a and the tip end portion 8b of the right bypass passage 8 and the base end portion 9a of the left bypass passage 9 become negative pressure, and the fluid in the right bypass passage 8 and the left bypass passage 9 becomes negative. In the right bypass passage 8, a strong flow does not occur because the negative pressure is balanced between the base end portion 8a and the tip end portion 8b, but in the left bypass passage 9, the base end portion 9a is not generated.
Only the negative pressure becomes negative pressure, and the fluid in the left bypass passage 9 is at the base end 9a.
It is strongly pulled to the side. As a result, the flow of fluid occurs from the left to the right at the base end portion of the internal flow path 6,
The fluid flowing along the left side wall 4 of is subjected to a rightward force. At the same time, since the fluid flows away from the tip portion 9b of the left bypass passage 9, air is sucked into the left bypass passage 9 from this, and this air flows from the base end portion 9a of the left bypass passage 9 to the internal passage 6 When it flows out to the left side wall 4, the fluid adhering to the side wall 4 is peeled off by the air on the left side wall 4. As a result, the fluid changes its flow path as shown in FIG. It flows from the side wall 4 along the left side wall 4 of the injection port 7, and is discharged from the nozzle port 3 to the left. The fluid oscillating device A repeats the above-described operation, and is ejected from the nozzle port 3 while alternately vibrating the direction of the jetted water laterally at a constant cycle. Moreover, when the fluid is jetted from the nozzle port 3, the jet flow is blocked by the control plates 12 at both ends and does not flow sufficiently, and the jet flow is jetted from the central part as much as it becomes difficult to flow from both ends. Therefore, the jet flow is evenly jetted from. It should be noted that if the thickness of the control plate 12 is gradually thinned, the jet flow at both ends becomes strong, and conversely if the thickness of the control plate 12 is gradually thickened, the jet flow at the central part becomes strong and the jet flow becomes uniform. Become Therefore, by adjusting the thickness of the control plate 12, it is possible to obtain a uniform jet flow in the entire nozzle opening 3,
Alternatively, it is possible to control the strength at both ends and the central portion of the jet flow.

【発明の効果】【The invention's effect】

本発明は、叙述のごとく流体を噴射させる長溝スリット
状のノズル口の幅寸法が両端部では狭く中央部では広く
形成されて、このノズル口の両端部の開口率が中央部の
開口率より小さくされたから、ノズル口の両端部から吐
出される噴射流が減少し、その分ノズル口の中央部から
の噴射流が増加してノズル口から噴射される噴射流の分
布を均一にできるという利点がある。従って、これをシ
ャワーなどの洗浄用の用途に用いる場合にも中央部の洗
浄も十分に行なえるものである。
According to the present invention, the width dimension of the long groove slit nozzle opening for ejecting the fluid is narrow at both ends and wide at the central portion as described above, and the opening ratio of both end portions of the nozzle opening is smaller than the opening ratio of the central portion. As a result, the jet flow discharged from both ends of the nozzle port decreases, the jet flow from the central part of the nozzle port increases correspondingly, and the distribution of the jet flow jetted from the nozzle port can be made uniform. is there. Therefore, even when this is used for cleaning such as a shower, the central part can be sufficiently cleaned.

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

第1図(a)(b)(c)は本発明の一実施例を示す正
面図、平断面図及び縦断面図、第2図(a)(b)は同
上の動作説明図、第3図は同上の効果説明のための断面
図、第4図(a)(b)は従来例の正面図及び平断面図
であり、1は流体発振機構、3はノズル口である。
FIGS. 1 (a), (b) and (c) are a front view, a plan sectional view and a longitudinal sectional view showing an embodiment of the present invention, and FIGS. 2 (a) and (b) are operation explanatory diagrams of the same, and FIG. The figure is a sectional view for explaining the effect of the above, FIGS. 4 (a) and 4 (b) are a front view and a plan sectional view of a conventional example, 1 is a fluid oscillation mechanism, and 3 is a nozzle port.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】流体の自己作用により流体の噴射方向と直
角な方向へ流体を振動させる流体発振機構が内部に形成
された流体発振素子において、流体を噴射させる長溝ス
リット状のノズル口の幅寸法が両端部では狭く中央部で
は広く形成されて、このノズル口の両端部の開口率が中
央部の開口率より小さくされた流体発振素子。
1. In a fluid oscillating device having a fluid oscillating mechanism for vibrating the fluid in a direction perpendicular to the jetting direction of the fluid by the self-action of the fluid, a width dimension of a long groove slit nozzle opening for jetting the fluid. The fluid oscillating device has a narrow opening at both ends and a wide opening at the center so that the opening ratio at both ends of the nozzle opening is smaller than the opening ratio at the center.
JP61095256A 1986-04-24 1986-04-24 Fluid oscillation element Expired - Fee Related JPH06105083B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61095256A JPH06105083B2 (en) 1986-04-24 1986-04-24 Fluid oscillation element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61095256A JPH06105083B2 (en) 1986-04-24 1986-04-24 Fluid oscillation element

Publications (2)

Publication Number Publication Date
JPS62251508A JPS62251508A (en) 1987-11-02
JPH06105083B2 true JPH06105083B2 (en) 1994-12-21

Family

ID=14132679

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61095256A Expired - Fee Related JPH06105083B2 (en) 1986-04-24 1986-04-24 Fluid oscillation element

Country Status (1)

Country Link
JP (1) JPH06105083B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7404416B2 (en) * 2004-03-25 2008-07-29 Halliburton Energy Services, Inc. Apparatus and method for creating pulsating fluid flow, and method of manufacture for the apparatus
WO2016010971A1 (en) 2014-07-15 2016-01-21 Bowles Fluidics Corporation Improved three-jet island fluidic oscillator circuit, method and nozzle assembly
US9915362B2 (en) 2016-03-03 2018-03-13 Dayco Ip Holdings, Llc Fluidic diode check valve

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4052002A (en) 1974-09-30 1977-10-04 Bowles Fluidics Corporation Controlled fluid dispersal techniques
US4151955A (en) 1977-10-25 1979-05-01 Bowles Fluidics Corporation Oscillating spray device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS599378B2 (en) * 1976-06-29 1984-03-02 東京測範株式会社 Spray type washer device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4052002A (en) 1974-09-30 1977-10-04 Bowles Fluidics Corporation Controlled fluid dispersal techniques
US4151955A (en) 1977-10-25 1979-05-01 Bowles Fluidics Corporation Oscillating spray device

Also Published As

Publication number Publication date
JPS62251508A (en) 1987-11-02

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