JPS631477A - Ultrasonic wave generator - Google Patents
Ultrasonic wave generatorInfo
- Publication number
- JPS631477A JPS631477A JP14563786A JP14563786A JPS631477A JP S631477 A JPS631477 A JP S631477A JP 14563786 A JP14563786 A JP 14563786A JP 14563786 A JP14563786 A JP 14563786A JP S631477 A JPS631477 A JP S631477A
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- vibrating body
- vibrator
- inner diameter
- diameter hole
- 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
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 239000000446 fuel Substances 0.000 abstract description 24
- 239000007788 liquid Substances 0.000 abstract description 16
- 238000000889 atomisation Methods 0.000 abstract description 6
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
- B05B17/0623—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers coupled with a vibrating horn
- B05B17/063—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers coupled with a vibrating horn having an internal channel for supplying the liquid or other fluent material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
- B05B17/0623—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers coupled with a vibrating horn
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、例えば内燃機関の燃料霧化等に使用される超
音波発生装置に関し，軸方向に貫通する内径孔を有する
振動体と、この振動体の外周側に同軸状に配置されて超
音波振動を与えるように結合された超音波振動子とを備
えることにより、液体搬送路に対して簡単に中継ぎ挿入
することができ、液体に対する流動抵抗を減少させて、
効率良く霧化できるようにしたものである．
従来の技術
内燃機関において、超音波発生装置を用いて燃料の霧化
を促進させ、燃焼室に均一な混合気を供給する従来技術
として、特開昭５１−１４３１３７号公報に開示された
技術が知られている．この従来技術は、ベンチュリー部
の後方に配設された中空筒゜状の超音波振動片により、
液体燃料を霧化するとともに，空気と混合せしめ、均一
な混合気を機関の燃焼室に供給するようにしたものであ
る．超音波振動片は、燃料流路内部に傾斜して直接に配
置するか、超音波振動片の内周側壁が燃料流路の内周壁
に沿うように配置し、ホーン等の超音波振動拡大部を通
して、外部から駆動する等の構造が開示されている．
発明が解決しようとする問題点
しかしながら、特開昭５１−１４３１３７号に開示され
るように，超音波振動片を燃料流路内部に傾斜して直接
に配置する構造では，超音波振動片が燃料の流動障害と
なる．また、超音波振動片を、内周側壁が燃料流路の内
周壁に沿うように配置し，ホーン等の超音波振動拡大部
を通して、外部から駆動する構造では、構造が複雑化し
、管体で形成される燃料流路に対する取付けが面倒にな
る等の闇題点を生じる．
問題点を解決するための手段
上述する従来の問題点を解決するため、本発明に係る超
音波発生装置は、軸方向に貫通する内径孔を有する中空
状振動体と、この振動体の外側に同軸に配置され前記振
動体に超音波振動を与えるべく結合された超音波振動子
とを備えることを特徴とする．
作用
本発明に係る超音波発生装置において、超音波振動子を
駆動すると、その超音波振動が振動体に伝達される．振
動体には軸方向に貫通する内径礼を設けてあるから、内
径孔に燃料等の液体を通し、この液体を振動体の超音波
振動によって霧化することが可能である．液体は振動体
に設けた内径孔内を軸方向に流通するから、液体に対す
る流動抵抗が少なくなり、効率良く霧化される．しかも
、振動体は軸方向に貫通する内径孔を有する中空状とな
っていて、この振動体の外側にａ音波振動子を同軸に配
置してあるから，中空管状に形成される燃料搬送路に対
して，簡単に中継ぎ挿入できる。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an ultrasonic generator used, for example, for fuel atomization of an internal combustion engine, and relates to a vibrating body having an inner diameter hole passing through the vibrating body in the axial direction, and The ultrasonic transducer is arranged coaxially on the outer periphery of the transducer and is coupled to give ultrasonic vibrations, making it possible to easily insert the transducer into the liquid conveyance path as an intermediate, reducing flow resistance to the liquid. decrease,
This allows for efficient atomization. Conventional technology In an internal combustion engine, a technology disclosed in Japanese Patent Application Laid-open No. 143137/1983 is a conventional technology that uses an ultrasonic generator to promote atomization of fuel and supply a uniform air-fuel mixture to the combustion chamber. Are known. This conventional technology uses a hollow cylindrical ultrasonic vibrating piece placed behind the venturi section.
It atomizes liquid fuel and mixes it with air to supply a uniform mixture to the combustion chamber of the engine. The ultrasonic vibrating piece may be placed directly inside the fuel flow path at an angle, or the inner peripheral side wall of the ultrasonic vibrating piece may be placed along the inner peripheral wall of the fuel flow path. Structures such as those driven from the outside through a drive are disclosed. Problems to be Solved by the Invention However, in the structure in which the ultrasonic vibrating piece is arranged directly at an angle inside the fuel flow path, as disclosed in Japanese Patent Application Laid-Open No. 51-143137, the ultrasonic vibrating piece does not interfere with the fuel flow path. It becomes a flow obstruction. In addition, in a structure where the ultrasonic vibrating piece is arranged so that the inner circumferential side wall is along the inner circumferential wall of the fuel flow path and is driven from the outside through an ultrasonic vibration amplifying part such as a horn, the structure becomes complicated and the tube body is used. This causes problems such as the difficulty of attaching it to the fuel flow path that is formed. Means for Solving the Problems In order to solve the above-mentioned conventional problems, an ultrasonic generator according to the present invention includes a hollow vibrating body having an inner diameter hole penetrating in the axial direction, and a hollow vibrating body having an inner diameter hole passing through the vibrating body in the axial direction. It is characterized by comprising an ultrasonic vibrator arranged coaxially and coupled to give ultrasonic vibration to the vibrating body. Operation In the ultrasonic generator according to the present invention, when the ultrasonic vibrator is driven, the ultrasonic vibrations are transmitted to the vibrating body. Since the vibrating body is provided with an inner diameter that penetrates in the axial direction, it is possible to pass liquid such as fuel through the inner diameter hole and atomize this liquid by the ultrasonic vibration of the vibrating body. Since the liquid flows in the axial direction through the inner diameter hole provided in the vibrating body, the flow resistance to the liquid is reduced and it is efficiently atomized. Moreover, since the vibrating body is hollow with an inner diameter hole penetrating in the axial direction, and the a-sonic vibrator is coaxially arranged on the outside of this vibrating body, the fuel conveyance path formed in the shape of a hollow tube is On the other hand, it is easy to insert a relay.
実施例
第１図は本発明に係る超音波発生装置の正面断面図、第
２図は第１図ＡＩ−ＡＩ線上における断面図である．ｌ
は軸方向に貫通する内径孔１１を有する中空状の振動体
、２ほこの振動体１の外側に同軸状に配置され、かつ、
振動体１に超音波振動を与えるべく結合された超音波振
動子である．
振動体１は金属材料でなる２つの中空部材１２、１３を
軸方向にネジ結合させて組立られている．中空部材１２
の一端部の外周部にはネジ１２１を形成し、このネジ部
１２１の後方に胴部１２２を形成してある．中空部材１
３は、中空部材ｌ２とネジ結合している端部にフランジ
ｉｌｌを形成すると共に、内径孔１ｌの内壁面に、軸方
向に沿って突起１３２の群を形成し、更に端部寄りの内
周面に外部配管との結合部となるネジ部１３３を形成し
てある．突起１３２の群は例えばネジ状に形成する．
そして，中空部材ｌ２の洞部１２２の外周部に超音波振
動子２及び金属材料でなる環体３を嵌合させた上で、ネ
ジ部１２１にナット４をネジ結合させることにより、環
体３及びナット４とフランジ１３１ との間で，超音波
振動子２を締付け固定してある．
超音波振動子２は、２つの圧電振動子２１、２２を、金
属板２３の両面側に接合し、中心部に振動体１の胴部１
２２を貫通させる中心孔２４を貫通して設けたランジュ
バン型構造となっている．２つの圧電振動子２１．２２
は円環状となっていて、その厚み方向の両面に電極（２
１１ ． ２１２）、（２２ｌ、２２２）を形成し、電
極２１１ ， ２２１を金属板２３に面接合させてある
．これらの圧電振動子２１、２２は接合方向の縦振動モ
ードを発生するように分極されている．
振動体１に対する超音波振動子２の組込みに当っては、
中空部材１２の胴部１２２の外周部に超音波振動子２及
び環体３を嵌合させ、電極２１２をフランジ１３１に、
また、電極２２２を環体３にそれぞれ面接触させ、ネジ
部１２１にナット４をネジ結合させることにより、環体
３及びナット４とフランジ１３１との間で、超音波振動
子２を締付け固定してある．振動体１及び超音波振動子
２の形状寸法等は、フランジ１３１を節として，その左
右に入／４またはその整数倍の縦振動系が形成されるよ
うに定められている．
振動体１と金属板２３との間に電圧を印加して超音波振
動子２を駆動すると、超音波振動子２を構成する圧電振
動子２１、２２に縦振動モードが発生し、第３図に示す
ように、振動体ｌがフランジ１３１を節にして、その左
右に入／４またはその整数倍の高次モードで屈曲振動を
し、超音波が放射される．従って、振動体ｌの内径孔１
１に燃料等の液体を通した場合、液体は振動体１の内径
部１１内でその内壁面に接触し、超音波振動を受けて霧
化される．
実施例では、内径孔ｌ１の内壁面に波状の突起１３２を
設けてあるので、霧化表面積が拡大されると共に、突起
！３２が縦振動により軸方向に前後し、液体が内壁面に
付看するのをはじき飛ばすように作用する．このため，
霧化効率が向上する．
第４図は本発明に係る超音波発生装置の別の実施例を示
している．この実施例では、振動体１は、超音波振動子
２を同軸支持する第１の振動体１４と，軸方向に貫通す
る内径孔１５１を有し第１の振動体１４の内部に同軸状
に結合された第２の振動体１５とを備える．第１の振動
体１４は、超音波振動子２を同軸状に支持する胴部１４
１と、超音波振動子２の一端面を受けるフランジ１４２
とを有し、フランジ１４２と胴部１４１に結合されるナ
ット４の間で超音波振動子２を締付け固定してある．
第２の振動体１５は、薄肉中空筒状に形成され、軸方向
の一端部を第２の振動体１４の軸方向の一端部に接合し
てある．
この実施例の場合も、超音波振動子２を駆動すると、超
音波振動子２を構成する圧’＋［振動子２１、２２に縦
振動モードが発生し、振動体１４がフランジ１４２を節
にして，その左右に入／４またはその整数倍の高次モー
トで屈曲振動をする．この超音波振動は第１の振動体１
４から第２の振動体１５に伝達される．従って、第２の
振動体ｌ５の内径孔１５１に燃料等の液体を通した場合
、液体は第２の振動体１５の内径部１５１内でその内壁
面に触れ，超音波振動を受けて霧化される．第５図は第
１図及び第２図に示した本発明に係る超音波発生装置を
、内燃機関における燃料搬送路の途中に中継ぎ挿入した
例を示し、ｌ６、１７は燃料搬送路、１８は本発明に係
る超音波発生装近である．図示するように、本発明に係
る超音波発生装置ｌ８は、管路として形成される燃料搬
送路１６、１７の途中に簡単に中継ぎ挿入できる．燃料
搬送路１６から超汗波発生装７１１８の内径孔を通して
燃料搬送路１７の方向に流れる燃料は、超音波発生装と
１８を通過する際に超音波の放射を受けて霧化される．
発明の効果
以上述へたように、本発明に係る超音波発生装置は，軸
方向に貫通する内径孔を有する中空状振動体と，この振
動体の外側に同軸に配鐙され前記振動体に超音波振動を
与えるべく結合された超音波振動子とを備えることを特
徴とするから、液体搬送路に対して簡単に中継ぎ挿入す
ることができ、液体に対する流動抵抗を減少させて、効
率良く霧化できるようにした超音波発生装置を提供する
ことができる．Embodiment FIG. 1 is a front sectional view of an ultrasonic generator according to the present invention, and FIG. 2 is a sectional view taken along the line AI--AI in FIG. 1. l
is a hollow vibrating body having an inner diameter hole 11 penetrating in the axial direction, and two of the vibrating bodies are arranged coaxially on the outside of the vibrating body 1, and
This is an ultrasonic vibrator coupled to give ultrasonic vibration to the vibrating body 1. The vibrating body 1 is assembled by screwing together two hollow members 12 and 13 made of metal material in the axial direction. Hollow member 12
A screw 121 is formed on the outer periphery of one end, and a body portion 122 is formed behind the screw portion 121. Hollow member 1
3 forms a flange ill at the end screwed to the hollow member l2, and also forms a group of protrusions 132 along the axial direction on the inner wall surface of the inner diameter hole 1l, and further forms a group of protrusions 132 on the inner periphery near the end. A threaded portion 133 is formed on the surface to be connected to external piping. The group of protrusions 132 is formed into a screw shape, for example. Then, the ultrasonic transducer 2 and the ring body 3 made of a metal material are fitted to the outer circumference of the hollow part 122 of the hollow member l2, and the nut 4 is screwed to the threaded part 121. The ultrasonic vibrator 2 is tightened and fixed between the nut 4 and the flange 131. The ultrasonic vibrator 2 has two piezoelectric vibrators 21 and 22 bonded to both sides of a metal plate 23, and a body 1 of the vibrating body 1 in the center.
It has a Langevin type structure in which a central hole 24 is provided through the center hole 22. Two piezoelectric vibrators 21.22
has an annular shape, and electrodes (2
11. 212), (22l, 222) are formed, and the electrodes 211 and 221 are surface-bonded to the metal plate 23. These piezoelectric vibrators 21 and 22 are polarized to generate a longitudinal vibration mode in the bonding direction. When incorporating the ultrasonic vibrator 2 into the vibrating body 1,
The ultrasonic vibrator 2 and ring body 3 are fitted to the outer circumference of the body 122 of the hollow member 12, and the electrode 212 is attached to the flange 131.
Further, by bringing the electrodes 222 into surface contact with the annular body 3 and screwing the nut 4 to the threaded portion 121, the ultrasonic transducer 2 is tightened and fixed between the annular body 3 and the nut 4 and the flange 131. There is. The shape and dimensions of the vibrating body 1 and the ultrasonic vibrator 2 are determined so that a longitudinal vibration system of /4 or an integral multiple thereof is formed on the left and right sides of the flange 131, with the flange 131 as a node. When a voltage is applied between the vibrating body 1 and the metal plate 23 to drive the ultrasonic vibrator 2, a longitudinal vibration mode is generated in the piezoelectric vibrators 21 and 22 constituting the ultrasonic vibrator 2, as shown in FIG. As shown in FIG. 2, the vibrating body l uses the flange 131 as a node, enters the left and right sides of the vibrating body l, and performs bending vibration in a higher-order mode of /4 or an integral multiple thereof, and an ultrasonic wave is emitted. Therefore, the inner diameter hole 1 of the vibrating body l
When a liquid such as fuel is passed through the vibrating body 1, the liquid comes into contact with the inner wall surface of the vibrating body 1 within the inner diameter portion 11, and is atomized by ultrasonic vibration. In the embodiment, since the wavy protrusion 132 is provided on the inner wall surface of the inner diameter hole l1, the atomization surface area is expanded and the protrusion! 32 moves back and forth in the axial direction due to longitudinal vibration, acting to repel liquid from adhering to the inner wall surface. For this reason,
Improves atomization efficiency. FIG. 4 shows another embodiment of the ultrasonic generator according to the present invention. In this embodiment, the vibrating body 1 includes a first vibrating body 14 that coaxially supports the ultrasonic vibrator 2, and an inner diameter hole 151 penetrating in the axial direction. and a coupled second vibrating body 15. The first vibrating body 14 includes a body portion 14 that coaxially supports the ultrasonic vibrator 2.
1, and a flange 142 that receives one end surface of the ultrasonic transducer 2.
The ultrasonic vibrator 2 is fastened and fixed between the flange 142 and the nut 4 coupled to the body 141. The second vibrating body 15 is formed into a thin hollow cylindrical shape, and one end in the axial direction is joined to one end in the axial direction of the second vibrating body 14. In the case of this embodiment as well, when the ultrasonic transducer 2 is driven, a longitudinal vibration mode is generated in the transducers 21 and 22, and the vibration body 14 makes the flange 142 a node. Then, on the left and right of it, bending vibration is caused by high-order motes of /4 or an integer multiple thereof. This ultrasonic vibration is caused by the first vibrator 1
4 to the second vibrating body 15. Therefore, when a liquid such as fuel is passed through the inner diameter hole 151 of the second vibrating body 15, the liquid comes into contact with the inner wall surface within the inner diameter part 151 of the second vibrating body 15, and is atomized by ultrasonic vibration. It will be done. FIG. 5 shows an example in which the ultrasonic generator according to the present invention shown in FIGS. 1 and 2 is inserted in the middle of a fuel conveyance path in an internal combustion engine, where 16 and 17 are fuel conveyance paths, and 18 is a fuel conveyance path. This is an ultrasonic generation device according to the present invention. As shown in the figure, the ultrasonic generator 18 according to the present invention can be easily inserted as an intermediate between fuel conveyance paths 16 and 17 formed as pipes. The fuel flowing in the direction of the fuel conveyance path 17 from the fuel conveyance path 16 through the inner diameter hole of the ultrasonic wave generator 7118 is atomized by ultrasonic radiation when passing through the ultrasonic wave generator 18. Effects of the Invention As described above, the ultrasonic generator according to the present invention includes a hollow vibrating body having an inner diameter hole penetrating in the axial direction, and a stirrup coaxially disposed on the outside of the vibrating body. Since it is characterized by being equipped with an ultrasonic vibrator coupled to give ultrasonic vibrations, it can be easily inserted into the liquid conveyance path, reducing flow resistance to the liquid and efficiently misting. It is possible to provide an ultrasonic generator that can perform
第１図は本発明に係る超音波発生装欝の部分破断面図、
第２図は第ｌ図ＡＩ−ＡＩ線上における断面図、第３図
は本発明に係る超音波発生装四の振動動作を説明する図
、第４図は本発明に係る超音波発生装芒の別の実施例に
おける断面図、第５図は第１図及び第２図に示した本発
明に係る超音波発生装置を、内燃機関における燃料搬送
路の途中に中継ぎ挿入した例を示す図である．ｌ・・・
振動体
２・・・趙音波振動子
２１、２２・・・圧電振動子
第１図
第２図FIG. 1 is a partially cutaway cross-sectional view of an ultrasonic generating device according to the present invention;
2 is a sectional view taken along the line AI-AI in FIG. A sectional view of another embodiment, FIG. 5, is a diagram showing an example in which the ultrasonic generator according to the present invention shown in FIGS. 1 and 2 is inserted in the middle of a fuel conveyance path in an internal combustion engine. ．． l...
Vibrating body 2... Zhao sound wave vibrator 21, 22... Piezoelectric vibrator Figure 1 Figure 2
Claims (7)
、この振動体の外側に同軸状に配置され前記振動体に超
音波振動を与えるべく結合された超音波振動子とを備え
ることを特徴とする超音波発生装置。(1) A hollow vibrating body having an inner diameter hole penetrating in the axial direction, and an ultrasonic vibrator disposed coaxially outside the vibrating body and coupled to give ultrasonic vibration to the vibrating body. An ultrasonic generator featuring:
と、前記超音波振動子の一端面を受けるフランジとを有
し、前記フランジと前記胴部に結合されるナットとの間
で前記超音波振動子を締付け固定したことを特徴とする
特許請求の範囲第１項に記載の超音波発生装置。(2) The vibrating body has a body that supports the ultrasonic vibrator, and a flange that receives one end surface of the ultrasonic vibrator, and a space between the flange and a nut coupled to the body. 2. The ultrasonic generator according to claim 1, wherein the ultrasonic transducer is tightened and fixed.
ることを特徴とする特許請求の範囲第１項または第２項
に記載の超音波発生装置。(3) The ultrasonic generator according to claim 1 or 2, wherein the vibrating body has a group of protrusions on the inner wall surface of the inner diameter hole.
する第１の振動体と、軸方向に貫通する内径孔を有し前
記第１の振動体の内径孔内に同軸状に結合された第２の
振動体とを備えてなることを特徴とする特許請求の範囲
第１項に記載の超音波発生装置。(4) The vibrating body has a first vibrating body that coaxially supports the ultrasonic vibrator, and an inner diameter hole penetrating in the axial direction, and the vibrating body is arranged coaxially within the inner diameter hole of the first vibrating body. The ultrasonic generator according to claim 1, further comprising a coupled second vibrating body.
に支持する胴部と、前記超音波振動子の一端面を受ける
フランジとを有し、前記フランジと前記胴部に結合され
るナットの間で前記超音波振動子を締付け固定したこと
を特徴とする特許請求の範囲第４項に記載の超音波発生
装置。(5) The first vibrating body has a body that coaxially supports the ultrasonic vibrator, and a flange that receives one end surface of the ultrasonic vibrator, and is coupled to the flange and the body. 5. The ultrasonic generator according to claim 4, wherein the ultrasonic vibrator is tightened and fixed between nuts.
向の一端部を前記第２の振動体の軸方向の一端部に接合
してなることを特徴とする特許請求の範囲第４項または
第５項に記載の超音波発生装置。(6) The second vibrating body is formed into a thin-walled cylindrical shape, and one end in the axial direction is joined to one end in the axial direction of the second vibrating body. The ultrasonic generator according to item 4 or 5.
ることを特徴とする特許請求の範囲第１項、第２項、第
３項、第４項、第５項または第６項に記載の超音波発生
装置。(7) The ultrasonic transducer is of a Langevin type, as set forth in claim 1, 2, 3, 4, 5, or 6. Ultrasonic generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14563786A JPS631477A (en) | 1986-06-20 | 1986-06-20 | Ultrasonic wave generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14563786A JPS631477A (en) | 1986-06-20 | 1986-06-20 | Ultrasonic wave generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS631477A true JPS631477A (en) | 1988-01-06 |
Family
ID=15389615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14563786A Pending JPS631477A (en) | 1986-06-20 | 1986-06-20 | Ultrasonic wave generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS631477A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6249655B2 (en) * | 1980-04-09 | 1987-10-20 | Koromubia Magune Purodakutsu Kk |
-
1986
- 1986-06-20 JP JP14563786A patent/JPS631477A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6249655B2 (en) * | 1980-04-09 | 1987-10-20 | Koromubia Magune Purodakutsu Kk |
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