JPS63252825A - Pneumatic type propeller for granule - Google Patents
Pneumatic type propeller for granuleInfo
- Publication number
- JPS63252825A JPS63252825A JP6173088A JP6173088A JPS63252825A JP S63252825 A JPS63252825 A JP S63252825A JP 6173088 A JP6173088 A JP 6173088A JP 6173088 A JP6173088 A JP 6173088A JP S63252825 A JPS63252825 A JP S63252825A
- Authority
- JP
- Japan
- Prior art keywords
- hole
- venturi
- propulsion device
- propellant gas
- gas
- 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
- 239000008187 granular material Substances 0.000 title claims description 10
- 239000003380 propellant Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 11
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 239000007921 spray Substances 0.000 description 6
- 230000001141 propulsive effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000007592 spray painting technique Methods 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
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1404—Arrangements for supplying particulate material
Landscapes
- Nozzles (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は粉粒体の空圧式推進器に関するものてあり、
さらに詳しくは例えばスプレ一式粉体塗装などに用いる
空気流を利用した推進器であって、流れ方向に前後して
設けられた収れん孔部と狭孔部と発散孔部とからなるベ
ンチュリー孔と、このベンチュリー孔に連通する被推進
材料のための導入口と、材料推進吸引のための推進ガス
のための少なくとも１個の導入口とを有してなる基本構
造の粉粒体推進器の改良に関するものである。[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a pneumatic propeller for powder and granular materials,
More specifically, it is a propulsion device that utilizes air flow, which is used, for example, in spray kit powder coating, etc., and includes a Venturi hole consisting of a convergence hole, a narrow hole, and a divergence hole, which are provided in front and behind in the flow direction. This invention relates to an improvement in a granular material propeller having a basic structure comprising an inlet for a propelled material communicating with the Venturi hole and at least one inlet for a propellant gas for propelling and suctioning the material. It is something.
（従来技術）
空圧式推進器としてはＤＥ−Ａ５１２６６６８５号（ア
メリカ特許第３５０４９４５号）に記載されたものが知
られている。このものにあっては推進ガス用導入口がベ
ンチュリー孔の収れん孔路の上流側に軸方向に開口して
いる。粉粒体の導入口はベンチュリー孔の中心軸に対し
て９０′の角度で、ある例では収れん孔路の下流側また
ある例では収れん孔路に直接に、連通している。材料導
入口に対して直径方向に対向する位置において制御ガス
用の導入口がベンチュリー孔に開口している。ベンチュ
リー孔の負圧域に供給される制御空気が多いほど、推進
ガスの推進力は小さい。制御ガスの制御により材料の時
間当り推進量を調節することができる。(Prior Art) As a pneumatic propulsion device, one described in DE-A51266685 (US Pat. No. 3,504,945) is known. In this case, the propellant gas introduction port opens in the axial direction on the upstream side of the convergent hole path of the Venturi hole. The powder inlet is in communication at a 90' angle to the central axis of the Venturi hole, in some instances downstream of the convergent channel, and in some instances directly into the convergent channel. An inlet for the control gas opens into the venturi hole at a position diametrically opposite to the material inlet. The more control air that is supplied to the negative pressure region of the venturi hole, the smaller the propulsive force of the propellant gas. The amount of material propelled per hour can be adjusted by controlling the control gas.
ＥＰ出願公開第０１８９７０９号のスプレーノズルは粉
粒体をスプレーするものであって、軸方向に前後してベ
ンチュリーノズルと収れん吸引室と全長に互って同一横
断面積の円筒状孔路とスプレ一孔路とを有している。吸
引室にはベンチュリー孔の中心軸に対して３０′角度で
粉粒体導路が開口している。ベンチュリーノズルのガス
は側方に設置プられた粉粒体導路から吸引室内にガスを
吸引する。円筒状孔路の壁とスプレ一孔路との間にはリ
ング状スリットが形成されており、これを介して塗装粉
粒体のためのガスがスプレ一孔路内に流れる。The spray nozzle of EP application publication No. 0189709 sprays powder and granules, and includes a venturi nozzle, a convergence suction chamber, a cylindrical hole passage having the same cross-sectional area, and a spray line arranged in front and behind each other in the axial direction. It has a hole. A powder conduit opens into the suction chamber at an angle of 30' to the center axis of the venturi hole. Gas from the Venturi nozzle is sucked into the suction chamber from a powder guide installed on the side. A ring-shaped slit is formed between the wall of the cylindrical channel and the spray channel, through which the gas for the coating powder flows into the spray channel.
（発明の要旨）
この発明の目的は構造的に簡単安価であり、材料の時間
当り推進量を容易に調節でき、ガスと材料が装置に付着
したりすることもなく、しかも材料を均一に推進するこ
とのできる粉粒体推進器を提供することにある。(Summary of the Invention) The object of the present invention is to have a simple and inexpensive structure, to be able to easily adjust the amount of material propelled per hour, to prevent gas and material from adhering to the device, and to uniformly propel the material. The purpose of the present invention is to provide a granular material propeller capable of
このためこの発明においては上記基本構造において、材
料導入口をベンチュリー孔の上流側で一線状にベンチュ
リー孔を指向させ、推進ガス導入口を相互にかつベンチ
ュリー孔の中心軸について対称に配置された少なくとも
２個の推進ガス孔路により構成し、該孔路の下流側終端
な狭孔路の始端からベンチュリー孔の発散孔部まで延在
するガス導入域内に位置させ、かつ該孔路が流れ方向を
指向する先端を有しでベンチュリー孔の中心軸に対して
０〜８０°の傾斜角αで延在するようにしたものである
。For this reason, in the present invention, in the above basic structure, the material inlet is oriented in a straight line on the upstream side of the venturi hole, and the propellant gas inlets are arranged symmetrically with respect to each other and with respect to the central axis of the venturi hole. It is composed of two propellant gas hole passages, and is located in a gas introduction region extending from the starting end of the narrow hole passage, which is the downstream end of the hole passage, to the divergence hole of the venturi hole, and the hole passage is arranged so that the flow direction is It has a oriented tip and extends at an inclination angle α of 0 to 80° with respect to the central axis of the venturi hole.
（実施態様）
第１図に示すのはこの発明の噴射器の一例であって、本
体２とベンチュリー管４とこれらを連結するソケット６
とから構成されている。ベンチュリー管４にはベンチュ
リー孔８が透通形成されており、このベンチュリー孔８
は長手方向に見てエアーフォイル状の孔壁１２を具えた
収れん孔部１０と、はぼ円筒状で始端１６から終端１８
迄延在する狭孔部１４と、拡散孔部２０とを有している
。(Embodiment) FIG. 1 shows an example of the injector of the present invention, in which a main body 2, a Venturi tube 4, and a socket 6 connecting them.
It is composed of. A venturi hole 8 is formed through the venturi tube 4, and this venturi hole 8
A converging hole portion 10 having an airfoil-like hole wall 12 when viewed in the longitudinal direction, and a converging hole portion 10 having a substantially cylindrical shape from a starting end 16 to a terminal end 18.
It has a narrow hole portion 14 that extends up to 100 degrees, and a diffusion hole portion 20.
ベンチュリー管４の外周の環路５８からこのベンチュリ
ー管４を貫通して内側ベンチュリー孔８に向けては整数
個、例えば８木の推進ガス供給用の孔路２２が延在して
いる。これらの孔路２２はベンチュリー管４の周方向に
互いに対称にかつベンチュリー孔８の中心軸２４につい
ても対称に配列されており、直径方向相対峙して２個の
孔路２２が位置し、しかも中心軸２４について相互間に
等しい中心角αを有している。しかしガスの流れは孔路
２２から中心軸２４に対して等しい角αで進出し、これ
によりガス流相互がまたベンチュリー孔８中を推進され
る材料がベンチュリー孔８の一部の壁に向けて偏在する
ことが阻止される。この角αはθ〜８９°、より好まし
くは２〜３０°位にとる。またその先端はベンチュリー
孔８中を推進される材料の流れ方向２８に交叉するよう
にとる。An integral number, for example eight, of propellant gas supply holes 22 extend from an annular passage 58 on the outer periphery of the Venturi tube 4 to the inner venturi hole 8 through the venturi tube 4 . These holes 22 are arranged symmetrically with each other in the circumferential direction of the venturi tube 4 and also symmetrically with respect to the central axis 24 of the venturi hole 8, and two holes 22 are located facing each other in the diametrical direction. They have an equal central angle α with respect to the central axis 24. However, the gas flow advances from the borehole 22 at an equal angle α to the central axis 24, so that the gas flow mutually also directs the material propelled through the venturi bore 8 towards the wall of a portion of the venturi bore 8. Uneven distribution is prevented. This angle α is set to θ to 89°, more preferably 2 to 30°. Further, the tip thereof is arranged so as to cross the flow direction 28 of the material propelled through the venturi hole 8.
孔路２２の下流側終端３０はベンチュリー孔８の狭孔部
１４中にある。しかし第２図に示す変化例のようにさら
に下流側発散孔部２０内にその位置を選んでもよい。た
だ図示のように終端３０をベンチュリー孔８の狭孔部１
４中に選ぶと吸引効率ひいては推進力が最も良くなるの
である。終端３０が狭孔部１４の終端１８より２ｃ＋ｎ
を越えて発散孔部２０内に入ると効率が非常に悪くなる
。狭孔部１４の始端１６から狭孔部１４の終端１８カ）
ら２ｃｍはど下流の位置３２との間の区域はガス導入域
を構成しており、終端３０は好ましくはこの区域内に位
置している。発散孔部２０の発散角βが大であるほど狭
孔部１４と位置３２との間隔は短く、推進効率は良くな
る。孔路２２の終端３０が狭孔部１４より上流側でかつ
収れん孔部１０内に位置すると、材料がベンチュリー孔
の壁に当り壁が痛められる危険がある。The downstream end 30 of the bore passage 22 is in the narrow bore portion 14 of the venturi bore 8 . However, as in the variation shown in FIG. 2, the position may be selected further within the downstream side divergence hole section 20. However, as shown, the terminal end 30 is connected to the narrow hole 1 of the venturi hole 8.
If you choose 4, the suction efficiency and ultimately the propulsion force will be the best. The terminal end 30 is 2c+n from the terminal end 18 of the narrow hole portion 14
If it enters the divergence hole 20 beyond this point, the efficiency will be extremely poor. From the starting end 16 of the narrow hole part 14 to the terminal end 18 of the narrow hole part 14)
The area between 2 cm and 2 cm downstream of the position 32 constitutes the gas introduction area, and the termination 30 is preferably located within this area. The larger the divergence angle β of the divergence hole portion 20, the shorter the distance between the narrow hole portion 14 and the position 32, and the better the propulsion efficiency. If the end 30 of the channel 22 is located upstream of the narrow bore 14 and within the convergent bore 10, there is a risk that the material will hit the walls of the venturi bore and damage the walls.
また以上に代えて孔路２２の終端３０は狭孔部１４の始
端１６迄位置させることができる。Further, instead of the above, the terminal end 30 of the hole passage 22 can be positioned up to the starting end 16 of the narrow hole portion 14.
孔路２２の中心軸２６は点９においでベンチュリー孔８
の中心軸２４と交叉する。孔路２２の中心軸２６は相互
にかつベンチュリー孔８の中心軸２４に対して対称であ
る。The central axis 26 of the hole passage 22 is located at the point 9 of the venturi hole 8.
intersects the central axis 24 of The central axes 26 of the bore passages 22 are symmetrical to each other and to the central axis 24 of the Venturi bore 8 .
本体２にはベンチュリー孔８と一線状に軸方向の透孔４
０が形成されており、この透孔４０は上流側の小径の第
１孔部４２と大径の第２孔部４４とから構成されている
。第１孔部４２はベンチュリー孔８の収れん孔部１０へ
の粉粒体材料の人口であり、第２孔部４４にはベンチュ
リー管４の上流側部分が挿入されている。第２孔部４４
はさらに大径の第３孔部４６につづいており、この第３
孔部４６にはネジが形成されていてソケット６のネジ部
４８がこれに螺合している。The main body 2 has an axial through hole 4 in line with the venturi hole 8.
0 is formed, and this through hole 40 is composed of a first hole 42 with a small diameter and a second hole 44 with a large diameter on the upstream side. The first hole 42 is a port for introducing the granular material into the convergence hole 10 of the venturi hole 8, and the upstream portion of the venturi tube 4 is inserted into the second hole 44. Second hole 44
continues to a third hole portion 46 having a larger diameter, and this third hole portion 46 has a larger diameter.
A thread is formed in the hole 46, and a threaded part 48 of the socket 6 is screwed into the thread.
ソケット６はベンチュリー管４に嵌装されてその肩部５
０はベンチュリー管４の肩部５２に圧接されており、本
体２中に延在するベンチュリー管４の端面５４が本体２
の肩部５６にシール圧着されており、特別のシール材を
必要としない。肩部５６は第１と第２の孔部４２．４４
間に位置している。The socket 6 is fitted into the Venturi tube 4 and its shoulder 5
0 is pressed against the shoulder 52 of the venturi tube 4, and the end surface 54 of the venturi tube 4 extending into the main body 2 is pressed against the shoulder 52 of the venturi tube 4.
A seal is crimped onto the shoulder portion 56 of the holder, and no special sealing material is required. The shoulder 56 connects the first and second holes 42,44.
It is located in between.
環路５８は端面５４とベンチュリー管４の外周面とによ
って画定され”Ｃいる。この環路５８には本体２を透通
形成された推進ガスの導入孔６０が間口している。本体
２中にはさらに他の導入孔６２が形成されて第１孔部４
２に開口している。The ring passage 58 is defined by the end face 54 and the outer peripheral surface of the Venturi tube 4. A propellant gas introduction hole 60 formed through the main body 2 opens into the ring passage 58. Further, another introduction hole 62 is formed in the first hole portion 4.
It is open to 2.
これはベンチュリー孔８の収れん孔部１０に制御カスを
イ共給するためのものである。This is for co-feeding control debris to the convergence hole portion 10 of the venturi hole 8.
導入孔６２から供給される制御ガスか多いほど導入孔６
０からの推進力は小さくかつ孔路２２に供給される推進
ガスも少ない。推進ガスと制御ガスは共に同一の圧力空
気源６から供給され、この圧力空気源は調圧器６６を介
して推進ガス用導入孔６０にまた調圧器６８を介して制
御ガス用導入孔６２にそれぞれ接続されている。The more control gas is supplied from the introduction hole 62, the more the control gas is supplied from the introduction hole 62.
The propulsive force from zero is small, and the amount of propulsive gas supplied to the hole passage 22 is also small. Both the propellant gas and the control gas are supplied from the same pressure air source 6, and this pressure air source is supplied to the propellant gas inlet 60 via a pressure regulator 66 and to the control gas inlet 62 via a pressure regulator 68, respectively. It is connected.
さらにこの例では圧力空気源６４は調圧器７０を介して
タンク７４の底室７２に接続されている。このタンク７
４中には公知のスプレー塗装方式により対象物を塗装す
るための粉粒体が収容されている。底室７２からのガス
は多孔性底板７６を経てその上方の収容室７８に至り、
粉粒体を浮遊状態に保つ。この収容室７８はバイブ８０
を介して本体２の透孔４０の第１孔部５２に接続されて
いる。孔路２２を介しでベンチュリー孔８に流れ込んだ
推進ガスは孔路２２の終端３０の上流側、特に狭孔部１
４の始端１６の区域て、強力な吸引力または負圧を形成
し、これによりバイブ８０を介してタンク７４中の粉粒
体か吸引されてヘンヂュリー孔８内を図示しない噴射器
に供給されるのである。Furthermore, in this example, the pressurized air source 64 is connected to the bottom chamber 72 of the tank 74 via a pressure regulator 70 . This tank 7
4 contains powder and granular material for painting objects by a known spray painting method. The gas from the bottom chamber 72 passes through the porous bottom plate 76 and reaches the storage chamber 78 above it.
Keeps powder and granules in a suspended state. This storage chamber 78 has a vibrator 80
It is connected to the first hole portion 52 of the through hole 40 of the main body 2 via. The propellant gas that has flowed into the venturi hole 8 through the hole passage 22 flows to the upstream side of the terminal end 30 of the hole passage 22, particularly in the narrow hole portion 1.
4, a strong suction force or negative pressure is created in the region of the starting end 16 of the pump 4, whereby the powder in the tank 74 is sucked through the vibrator 80 and supplied to the injector (not shown) inside the hengeli hole 8. It is.
空圧式推進器の働きによれは、ベンチュリー孔８は吸引
流路ともまた推進器は吸引流ポンプとも呼べるものであ
る。孔路２２に利点はその開口横断面積とガス流方向と
をリング状のスリットよりも遥かに新しく調節てぎるこ
とにある。これによりヘンチュリー孔８中のガスおよび
推進される材料に対して同芯状かつ同形状の流れが到達
し、これにより推進される材料のベンチュリー孔８の壁
に対する摩擦やイ」着が遥かに減少するのである。Depending on the function of the pneumatic propeller, the venturi hole 8 can be called a suction flow path, and the propeller can also be called a suction flow pump. The advantage of the channel 22 is that its opening cross-sectional area and gas flow direction can be adjusted to a much greater degree than with a ring-shaped slit. This allows a concentric and uniform flow to reach the gas in the venturi hole 8 and the propelled material, which greatly reduces the friction and impact of the propelled material against the wall of the venturi hole 8. That's what I do.
２個の区画された部分からなるリング状スリットかその
距離、同芯度および流れ方向の調整が誤り易くかつ再調
整が困難であるのに比へて、孔路２２のためのベンチュ
リー管４が単一体であるので、横断面積の大きさ、角位
置、ベンチュリー孔８に対する孔路２２の軸位置などが
正しく変更できるのである。またこれらの値および関係
位置の初期設定もリング状のスリットより容易なのであ
る。Compared to a ring-shaped slit consisting of two compartments, whose distance, concentricity and flow direction are easily erroneously adjusted and difficult to readjust, the Venturi tube 4 for the borehole 22 is Since it is a single unit, the size of the cross-sectional area, the angular position, the axial position of the hole passage 22 with respect to the venturi hole 8, etc. can be changed correctly. Initial setting of these values and related positions is also easier than with a ring-shaped slit.
第１．２図はこの発明の推進器の語例を示す断面側面図
である。
２・・・ベンチュリー管 ８・・・ソケット１０
・・・収れん孔部 １４・・・狭孔部２０・・
・発散孔部 ２２・・・孔路２８・・・梳れ
方向FIG. 1.2 is a cross-sectional side view showing an example of the propulsion device of the present invention. 2... Venturi tube 8... Socket 10
...Constriction hole part 14...Narrow hole part 20...
・Divergence hole part 22...pore path 28...combing direction
Claims (1)
と狭孔部（１４）と発散孔部 （２０）とからなるベンチュリー孔（８） と、このベンチュリー孔に連通する被推進材料のための
導入口（４２）と、材料推進吸引のための推進ガスのた
めの少なくとも１個の導入口（２２、３０）とを有して
なり、さ らに 材料導入口（４２）がベンチュリー孔 （８）の上流側において一線状にベンチュ リー孔（８）を指向しており、 推進ガス導入口（２２、３０）が、相互に かつベンチュリー孔（８）の中心軸（２４）について対
称に配置された少なくとも２個の推進ガス孔部（２２）
により、構成されて おり、 該孔部（２２）の下流側終端（３０）が、 狭孔路（１４）の始端（１６）からベンチュリー孔（８
）の発散孔部（２０）まで延在するガス導入域（１４、
２０）内に、位置し、かつ 該孔部（２２）が流れ方向（２８）を指向 する先端を有して、ベンチュリー孔（８）の中心軸（２
４）に対して０〜８９°の傾斜角（α）で延在している ことを特徴とする粉粒体の空圧式推進器。 ２ 少なくともベンチュリー孔（８）のガス導入域（１
４、２０）とこれに開口する推進ガス孔部（２２）とが
単一体構造のベンチュ リー管（４）内に形成されている ことを特徴とする請求項１記載の推進器。 ３ 推進ガスＬ孔部（２２）が整数個設けられており、 かつ２個の孔路の終端（３０）がベンチュ リー孔（８）中において直径方向に相対峙している ことを特徴とする請求項１または２に記載 の推進器。 ４ 傾斜角（α）が１〜６０°の範囲にあり、推進ガス
孔部（２２）の中心軸（２６）が少なくとも点（９）に
おいてベンチュリー孔 （８）の中心軸（２４）と交叉し、かつ 該中心軸（２６）が相互にかつ中心軸 （２４）について対称である ことを特徴とする請求項１〜３のいずれか に記載の推進器。 ５ 傾斜角（α）が２〜３０°の範囲にあることを特徴
とする請求項４記載の推進器。 ６ ベンチュリー孔（８）の狭孔部（１４）が流れ方向
にほぼ同一の円筒状横断面積孔路部分（１６−１８）で
あり、かつ 推進ガス孔部（２２）の終端（３０）がこ の孔部部分に開口している ことを特徴とする請求項１〜５のいずれか に記載の推進器。 ７ 推進ガス孔路（２）の終端（３０）が発散孔部（２
０）に開口している ことを特徴とする請求項１〜５のいずれか に記載の推進器。 ８ 収れん孔路（１０）の孔壁（１２）が流線形である ことを特徴とする請求項１〜７のいずれか に記載の推進器。 ９ 推進ガスの効率を支配する制御ガス用の導入口（６
２）が狭孔路（１４）の上流側で ベンチュリー孔（８）に開口している ことを特徴とする請求項１〜８のいずれか に記載の推進器。[Claims] 1. Convergence holes (10) provided one behind the other in the flow direction
a venturi hole (8) consisting of a narrow hole part (14) and a divergence hole part (20); an inlet (42) for the propelled material communicating with the venturi hole; and a propulsion port (42) for propelling and suctioning the material. at least one inlet (22, 30) for gas, furthermore the material inlet (42) is oriented in line with the venturi hole (8) on the upstream side of the venturi hole (8). at least two propellant gas holes (22), the propellant gas inlets (22, 30) being arranged symmetrically with respect to each other and with respect to the central axis (24) of the venturi hole (8);
The downstream end (30) of the hole (22) is connected from the starting end (16) of the narrow hole passage (14) to the Venturi hole (8).
), the gas introduction region (14,
20), the hole (22) having a tip oriented in the flow direction (28), the center axis (2) of the venturi hole (8).
4) A pneumatic propulsion device for powder or granular material, characterized in that it extends at an inclination angle (α) of 0 to 89° with respect to the granular material. 2 At least the gas introduction area (1
4, 20) and the propellant gas hole (22) opening thereto are formed in a single-piece Venturi tube (4). 3. A claim characterized in that an integral number of propellant gas L holes (22) are provided, and the terminal ends (30) of the two hole passages face each other in the diametrical direction in the Venturi hole (8). The propulsion device according to item 1 or 2. 4. The angle of inclination (α) is in the range of 1 to 60°, and the central axis (26) of the propellant gas hole (22) intersects the central axis (24) of the venturi hole (8) at least at point (9). 4. Propulsion device according to any one of claims 1 to 3, characterized in that, and the central axes (26) are symmetrical with respect to each other and with respect to the central axis (24). 5. The propulsion device according to claim 4, wherein the inclination angle (α) is in the range of 2 to 30°. 6 The narrow hole portion (14) of the Venturi hole (8) is a cylindrical cross-sectional area hole passage portion (16-18) that is substantially the same in the flow direction, and the terminal end (30) of the propellant gas hole portion (22) is The propulsion device according to any one of claims 1 to 5, characterized in that the hole portion is open. 7 The terminal end (30) of the propellant gas hole path (2) is the divergence hole portion (2).
The propulsion device according to any one of claims 1 to 5, characterized in that the propulsion device has an opening at 0). 8. The propulsion device according to any one of claims 1 to 7, characterized in that the hole wall (12) of the convergent hole passage (10) is streamlined. 9 Inlet port for the control gas that controls the efficiency of the propellant gas (6
9. The propulsion device according to claim 1, wherein the venturi opening (2) opens into the venturi hole (8) on the upstream side of the narrow passageway (14).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3708462.3 | 1987-03-16 | ||
| DE19873708462 DE3708462A1 (en) | 1987-03-16 | 1987-03-16 | PNEUMATIC CONVEYOR |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63252825A true JPS63252825A (en) | 1988-10-19 |
Family
ID=6323169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6173088A Pending JPS63252825A (en) | 1987-03-16 | 1988-03-14 | Pneumatic type propeller for granule |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0282873A3 (en) |
| JP (1) | JPS63252825A (en) |
| DE (1) | DE3708462A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09142657A (en) * | 1995-09-18 | 1997-06-03 | Elpatronic Ag | Conveying method of powdered material by injector and devicetherefor |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4319726A1 (en) * | 1993-06-15 | 1994-12-22 | Gema Volstatic Ag | Powder conveyor |
| JPH07265782A (en) * | 1994-04-01 | 1995-10-17 | Ransburg Ind Kk | Storage tank for powder feeding and powder coating device with the tank |
| DE4419987A1 (en) * | 1994-06-08 | 1996-02-29 | Gema Volstatic Ag | Injector conveyor for the pneumatic conveying of powder |
| DE9410491U1 (en) * | 1994-06-29 | 1994-08-18 | Smura, Walter, 59469 Ense | Conveyor |
| DE4423197A1 (en) * | 1994-07-01 | 1996-01-04 | Gema Volstatic Ag | Pump for powder material |
| DE4432994C2 (en) * | 1994-09-16 | 2003-01-30 | Gerd Krischik | Plant for the discharge of fine dust |
| CN103195462B (en) * | 2013-04-16 | 2014-11-19 | 中国矿业大学 | Liquid addition and atomization device for mine nitrogen-filling process |
| DE102017103316A1 (en) * | 2017-02-17 | 2018-08-23 | Gema Switzerland Gmbh | POWDER CONVEYOR FOR PROMOTING COATING POWDER AND VENTURI NOZZLE ARRANGEMENT |
| DE102021202550A1 (en) * | 2021-03-16 | 2022-09-22 | Sms Group Gmbh | Powder conveying device for conveying powdered media |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE444471C (en) * | 1926-02-26 | 1927-05-21 | Kohlenstaub Ges Mit Beschraenk | Process for conveying coal dust |
| DE1203677B (en) * | 1963-04-20 | 1965-10-21 | Frans Sijtsma | Device for pneumatic conveying of powdery or granular material |
| US3212217A (en) * | 1963-05-28 | 1965-10-19 | Tex Tube Inc | Cleaning device |
| DE1264373B (en) * | 1966-01-05 | 1968-03-28 | Hoelter H | Conveyor nozzle for the blow offset |
| US3371618A (en) * | 1966-02-18 | 1968-03-05 | Chambers John | Pump |
| CH436120A (en) * | 1966-06-28 | 1967-05-15 | Gema Ag | Pneumatic conveying device with adjustable conveying capacity |
| FR2384140A1 (en) * | 1977-03-16 | 1978-10-13 | Commissariat Energie Atomique | PUMPING EJECTOR |
| DE2939029C2 (en) * | 1979-09-27 | 1986-08-07 | Bergwerksverband Gmbh | Feeding device for fine-grain bulk material on an entrained flow pipe |
| EP0178120B1 (en) * | 1984-10-12 | 1988-07-27 | Nordson Corporation | Venturi powder pump |
| FR2575678B1 (en) * | 1985-01-04 | 1988-06-03 | Saint Gobain Vitrage | PNEUMATIC POWDER EJECTOR |
| DD236022A1 (en) * | 1985-04-12 | 1986-05-28 | Wasserbau Spezialbau Kom | MOERTELSPRITZDUESE |
-
1987
- 1987-03-16 DE DE19873708462 patent/DE3708462A1/en not_active Withdrawn
-
1988
- 1988-03-08 EP EP88103557A patent/EP0282873A3/en not_active Withdrawn
- 1988-03-14 JP JP6173088A patent/JPS63252825A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09142657A (en) * | 1995-09-18 | 1997-06-03 | Elpatronic Ag | Conveying method of powdered material by injector and devicetherefor |
| US5906858A (en) * | 1995-09-18 | 1999-05-25 | Elpatronic Ag | Method and apparatus for conveying a pulverulent material by means of an injector |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0282873A3 (en) | 1989-12-13 |
| EP0282873A2 (en) | 1988-09-21 |
| DE3708462A1 (en) | 1988-09-29 |
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