JP2002371995A - Wet motor pump - Google Patents
Wet motor pumpInfo
- Publication number
- JP2002371995A JP2002371995A JP2001179910A JP2001179910A JP2002371995A JP 2002371995 A JP2002371995 A JP 2002371995A JP 2001179910 A JP2001179910 A JP 2001179910A JP 2001179910 A JP2001179910 A JP 2001179910A JP 2002371995 A JP2002371995 A JP 2002371995A
- Authority
- JP
- Japan
- Prior art keywords
- band
- stator
- housing
- motor
- motor pump
- 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.)
- Granted
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ウエットモータポ
ンプに係り、特にウエットモータポンプのハウジングの
構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wet motor pump, and more particularly, to a housing structure of a wet motor pump.
【０００２】[0002]
【従来の技術】従来、遠心型ポンプでモータとポンプを
一体化し取扱い液が漏れないようにしたシールレスモー
タポンプにおいて、取扱い液の一部をモータ部に導入し
て、軸受けの潤滑、モータの冷却を図るウエットモータ
ポンプまたはサブマージドポンプが用いられる。図３
は、従来例のウエットモータポンプの断面図で、モータ
部１とポンプ部２が一体化されている。モータ部１は、
ハウジング３の内部にロータ５とステータ６を備え、ス
テータ６は必要な場合止め具７によりハウジングに強固
に固定される。ポンプ部２において、モータ回転軸４の
一方端にインペラ８が取付けられ、取扱い液吸込口９、
吐出口１０を備える。またモータ部１に取扱い液の導入
口１１ａ、排出口１１ｃが設けられ、モータ内部に取扱
い液の一部が流れるモータ内部流路１１ｂが形成され
る。この従来例において、モータが駆動されると、回転
軸に取付けられたインペラ８が高速回転し、吸込口９よ
り取扱い液を吸込んで、遠心力により吐出口より吐出
し、ポンプの所定の揚圧を得る。また、取扱い液の一部
は取扱い液導入口１１ａからモータ内部に導入され、モ
ータ内部流路１１ｂにより軸受けの潤滑、ステータコイ
ル等の発熱部の冷却を行ない、取扱い液排出口１１ｃよ
り排出される。このモータ内部流路１１ｂにおいて、流
路抵抗が最大となるところは、ロータ５とステータ６の
隙間で形成されるロータとステータの間の流路１２ａ
で、ここでモータ内部流路１１ｂの総流量が制限され
る。この隙間が小さいと所定の冷却能力を発揮するに
は、導入される取扱い液の圧力を高くしなければならな
いがそれにも限度があった。2. Description of the Related Art Conventionally, in a sealless motor pump in which a motor and a pump are integrated by a centrifugal pump to prevent a leakage of a handling liquid, a part of the handling liquid is introduced into a motor portion to lubricate a bearing and to reduce a motor rotation. A wet motor pump or a submerged pump for cooling is used. FIG.
Is a sectional view of a conventional wet motor pump, in which a motor unit 1 and a pump unit 2 are integrated. The motor unit 1
A rotor 5 and a stator 6 are provided inside the housing 3, and the stator 6 is firmly fixed to the housing by a stopper 7 when necessary. In the pump section 2, an impeller 8 is attached to one end of the motor rotation shaft 4, and a handling liquid suction port 9,
A discharge port 10 is provided. The motor section 1 is provided with an inlet 11a and an outlet 11c for a handling liquid, and a motor internal flow path 11b through which a part of the handling liquid flows is formed inside the motor. In this conventional example, when the motor is driven, the impeller 8 attached to the rotating shaft rotates at a high speed, sucks the liquid to be handled through the suction port 9 and discharges it from the discharge port by centrifugal force. Get. A part of the handling liquid is introduced into the motor from the handling liquid inlet 11a, and the lubrication of the bearing and the cooling of the heat generating portion such as the stator coil are performed by the motor internal flow path 11b, and then discharged from the handling liquid outlet 11c. . In the motor internal flow path 11b, the flow path resistance is maximized in the flow path 12a between the rotor and the stator formed by the gap between the rotor 5 and the stator 6.
Here, the total flow rate of the motor internal flow path 11b is limited. If the gap is small, the pressure of the handling liquid to be introduced must be increased in order to exhibit a predetermined cooling capacity, but this is limited.
【０００３】そこで、ハウジングを鋳物製とし、その内
部に新たな流路を設けることが行われる。図４に鋳物製
ハウジングの例として、図４（ａ）に回転軸に沿った断
面図、図４（ｂ）に回転軸に直角なＢ−Ｂ面における断
面図を示す。ここでは、鋳物製ハウジング１３の内面に
前記ステータ６の外周と密接するステータ保持部と、前
記ステータ６との間に間隙を設けるハウジング液流路部
１２ｂを設けている。これにより所定の冷却能力を確保
できることから、鋳物製ハウジングが多く用いられる。
しかし、鋳物製ハウジング１３は、ステータ外径が異な
ると別木型が必要となる。これをある程度防ぐために
は、ハウジング液流路部１２ｂの底からステータ保持部
の頂部までの凸部の高さｈを予め高くし、ステータ外径
が異なってもその外径に合わせてその凸部の高さｈを追
加工して低くすることにより対応してきた。しかしこの
場合、その凸部の高さｈを予め高く設定するため、ハウ
ジングの外径が大きくなり、ウエットモータポンプ全体
の外径も大型化する課題がある。[0003] Therefore, it has been practiced to make the housing from a casting and to provide a new flow passage therein. 4A and 4B show cross-sectional views along an axis of rotation as an example of a cast housing, and FIG. 4B is a cross-sectional view taken along a plane BB perpendicular to the axis of rotation. Here, on the inner surface of the cast housing 13, a stator holding portion that is in close contact with the outer periphery of the stator 6 and a housing liquid flow path portion 12b that provides a gap between the stator 6 are provided. As a result, a predetermined cooling capacity can be ensured, so that a cast housing is often used.
However, if the cast housing 13 has a different stator outer diameter, a separate wooden mold is required. In order to prevent this to some extent, the height h of the convex portion from the bottom of the housing liquid flow path portion 12b to the top of the stator holding portion is previously increased, and even if the outer diameter of the stator is different, the convex portion is adjusted to the outer diameter. The height h has been reduced by additional processing. However, in this case, since the height h of the convex portion is set high in advance, there is a problem that the outer diameter of the housing increases and the outer diameter of the entire wet motor pump also increases.
【０００４】一方で、ステータ外径が異なっても設計上
小型化が容易で、より簡明なハウジングの構造として、
板材を曲げて、ステータ６の外周に沿わせてバンド状に
巻き、筒状にしてしっかりと密接させつなぎ目を溶接等
で接合するバンド型ハウジング１４とする構造がある。
図５にバンド型ハウジングについて回転軸に沿った断面
図を示したが、この場合モータ内部流路１１ｂは、ロー
タとステータの間の流路１２ａで制限されるので、前述
の冷却能力に問題がある。この場合冷却液の総量が少な
くてもモータとして適用できるよう、例えばモータの材
料を適切に変更するなどの方法で解決していく必要が有
るが、これらは当然コスト高となる。On the other hand, even if the outer diameter of the stator is different, it is easy to reduce the size by design, and as a simpler housing structure,
There is a structure in which a band-shaped housing 14 is formed by bending a plate material, winding the band along the outer periphery of the stator 6, forming a tubular shape, making tight contact, and joining joints by welding or the like.
FIG. 5 shows a cross-sectional view of the band-type housing along the rotation axis. In this case, the motor internal flow path 11b is restricted by the flow path 12a between the rotor and the stator. is there. In this case, it is necessary to solve the problem by, for example, appropriately changing the material of the motor so that the motor can be applied even if the total amount of the cooling liquid is small, but these naturally increase the cost.
【０００５】[0005]
【発明が解決しようとする課題】このように従来のウエ
ットモータポンプにおいて、鋳物製ハウジングは、冷却
能力の確保には対応できるが、多種多様の外形の異なる
ステータに適合するためには、それぞれ別木型を用意す
るか、あるいは予め大き目に作っておいて追加工で対応
するか、いずれにせよ多種多様の鋳物製ハウジングを在
庫として用意せねばならない。As described above, in the conventional wet motor pump, the cast housing can cope with securing the cooling capacity. Regardless of whether a wooden mold is prepared or made larger in advance to cope with additional processing, a wide variety of cast housings must be prepared in stock.
【０００６】そこで本発明の目的は、ウエットモータポ
ンプにおいて、従来例の課題を解決し、冷却能力を確保
する液流路を設けることができて、多種多様の外径の異
なるステータに適合するためのハウジングの構造の変更
を簡易な方法で行うことができ、用意すべきハウジング
の型の種類を少なくすることで、冷却能力を確保しつつ
経済効果が高いバンド型ハウジングを提供することにあ
る。Accordingly, an object of the present invention is to solve the problems of the prior art in a wet motor pump, and to provide a liquid flow path for securing a cooling capacity, so as to be compatible with a variety of stators having different outer diameters. Another object of the present invention is to provide a band-type housing which can be changed in a simple manner and which has a high economical effect while ensuring a cooling capacity by reducing the types of housing to be prepared.
【０００７】[0007]
【課題を解決するための手段】前述の目的を達成するた
め、本発明は、ハウジング内にロータとステータを備え
るモータ部と、モータ回転軸の少なくとも一方端に配設
されたポンプ部を有し、ポンプ部の取扱い液の一部をモ
ータ部に導入するウエットモータポンプにおいて、前記
ハウジングは、板材を筒状にし、その内面に前記ステー
タの外周と密接するステータ保持部と、前記ステータと
の間に間隙を設ける液流路部とを有するバンドであるこ
とを特徴とする。In order to achieve the above-mentioned object, the present invention comprises a motor section having a rotor and a stator in a housing, and a pump section disposed at at least one end of a motor rotating shaft. In a wet motor pump for introducing a part of the liquid handled by a pump section into a motor section, the housing has a plate-like cylindrical shape, and an inner surface thereof is provided between a stator holding section that is in close contact with the outer periphery of the stator and the stator. And a liquid flow path portion having a gap in the band.
【０００８】また本発明に係るウエットモータポンプに
おいては、前記バンドは、前記ステータ外周に密接する
内バンドと、内バンドの外周にある外バンドの二層構造
であって、内バンドに前記液流路部を形成する溝穴また
は溝底を有する溝が設けられていることを特徴とする。Further, in the wet motor pump according to the present invention, the band has a two-layer structure of an inner band which is in close contact with the outer periphery of the stator and an outer band which is on the outer periphery of the inner band. A groove having a groove or a groove bottom for forming a road portion is provided.
【０００９】本発明に係るウエットモータポンプにおい
ては、ハウジングを、板材を筒状にし、その内面に前記
ステータの外周と密接するステータ保持部と、前記ステ
ータとの間に間隙を設ける液流路部とを有するバンド型
ハウジングとしたので、冷却能力を確保する液流路を設
けることができて、多種多様の外径の異なるステータに
適合するためのハウジングの構造の変更を簡易な方法で
行うことができ、用意すべきハウジングの型の種類を少
なくすることができる。In the wet motor pump according to the present invention, the housing is formed of a cylindrical plate, and the inner surface of the housing has a stator holding portion that is in close contact with the outer periphery of the stator, and a liquid passage portion that provides a gap between the stator and the stator. And a liquid passage for securing cooling capacity can be provided, and the structure of the housing can be changed in a simple manner to fit a variety of stators having different outer diameters. Therefore, the number of types of housings to be prepared can be reduced.
【００１０】[0010]
【発明の実施の形態】以下図面を用いて本発明の実施の
形態について詳細に説明する。図１に、本発明のウエッ
トモータポンプにおけるバンド型ハウジングの第一の実
施の形態を示す。図１（ａ）は回転軸に沿ったＡ−Ａ切
断面におけるハウジング周りの断面図、図１（ｂ）はＢ
−Ｂ切断面におけるハウジング周りの断面図である。バ
ンド型ハウジング１４は、ステータ６の外周に密接する
内バンド１５と、内バンド１５の外周にある外バンド１
６の二層構造である。図１（ｃ）は内バンド１５の展開
図を示し、図１（ｄ）は、（ｃ）で示すＤ−Ｄ切断面に
おける断面図である。内バンド１５には溝穴１７が設け
られ、溝穴１７の長手方向の長さはステータ６の軸方向
の長さより長い。溝穴１７は貫通穴でなくても溝底を有
する溝でも良い。この内バンド１５を曲げて、ステータ
６の外周に沿わせてバンド状に巻き、筒状にしてしっか
りと密接させ必要なときはつなぎ目を溶接等で接合し、
つぎにその外周に沿わせて外バンド１６をバンド状に巻
き、筒状にしてしっかりとつなぎ目を溶接等で接合す
る。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a first embodiment of a band type housing in a wet motor pump according to the present invention. FIG. 1A is a cross-sectional view around the housing in an AA cut plane along the rotation axis, and FIG.
It is sectional drawing around a housing in the -B cutting surface. The band type housing 14 includes an inner band 15 that is in close contact with the outer periphery of the stator 6 and an outer band 1 that is on the outer periphery of the inner band 15.
6 is a two-layer structure. FIG. 1C is a development view of the inner band 15, and FIG. 1D is a cross-sectional view taken along the line D-D shown in FIG. The inner band 15 is provided with a slot 17, and the longitudinal length of the slot 17 is longer than the axial length of the stator 6. The slot 17 need not be a through-hole but may be a slot having a slot bottom. This inner band 15 is bent, wound in a band shape along the outer periphery of the stator 6, formed into a cylindrical shape, and tightly adhered. When necessary, a joint is joined by welding or the like.
Next, the outer band 16 is wound in a band shape along the outer periphery thereof, formed into a tubular shape, and the joint is firmly joined by welding or the like.
【００１１】かかる本発明の第一の実施の形態において
は、溝穴でない部分１８でステータ６の外周と密接して
ステータ６を保持し、溝穴１７の部分がハウジング液流
路部を形成する。そこで内バンド１５について、ウエッ
トモータポンプの冷却能力から要求されるモータ内部流
路１１ｂの設計に従って、必要な溝穴の数、大きさまた
は溝底を有する溝の数、深さ、大きさを定めることで、
冷却能力を確保する液流路を設けることができて、多種
多様の外径の異なるステータに適合するためのハウジン
グの構造の変更を、必要な溝穴または溝底を有する溝を
加工する簡易な方法で行うことができ、用意すべきハウ
ジングの型の種類を少なくすることができる。In the first embodiment of the present invention, the stator 6 is held in close contact with the outer periphery of the stator 6 at the portion 18 which is not a slot, and the slot 17 forms a housing liquid flow path. . Therefore, for the inner band 15, the necessary number, size, or number, depth, and size of the grooves having the groove bottom or the groove bottom are determined in accordance with the design of the motor internal flow path 11b required from the cooling capacity of the wet motor pump. By that
A liquid flow path to ensure the cooling capacity can be provided, and the structure of the housing can be changed to fit a variety of stators with different outer diameters. In this way, the number of types of housing to be prepared can be reduced.
【００１２】図２に、本発明のウエットモータポンプに
おけるバンド型ハウジングの第二の実施の形態を示す。
図２（ａ）は回転軸に沿ったＡ−Ａ切断面におけるハウ
ジング周りの断面図、図２（ｂ）はＢ−Ｂ切断面におけ
るハウジング周りの断面図、図２（ｃ）はバンド型ハウ
ジング１４の展開図、図２（ｄ）はその展開図における
Ｄ−Ｄ切断面における断面図である。バンド型ハウジン
グ１４は、バンドの外形を構成する部分１９と、凸部を
形成する部分２０を有する構造で、凸部を形成する部分
２０はバンドの外形を構成する部分１９の内面に配置さ
れる。この凸部を形成する部分２０は、バンドの外形を
構成する部分１９の板材に、複数の短冊状の別板材を準
備して溶接などで接合して形成できる。バンド型ハウジ
ング１４は、このようにして形成した板材を曲げて、凸
部を形成する部分２０をステータ６の外周に沿わせつつ
バンド状に巻き、筒状にしてしっかりと密接させつなぎ
目を溶接等で接合する方法で製作できる。このときのク
ランプ力でステータ６の軸方向の保持が行われるが、そ
れでもクランプ力が足りない場合はピン等の止め具を用
いて固定することもできる。FIG. 2 shows a second embodiment of a band type housing in a wet motor pump according to the present invention.
FIG. 2A is a cross-sectional view around the housing along an AA cut plane along the rotation axis, FIG. 2B is a cross-sectional view around the housing along a BB cut plane, and FIG. 2C is a band-type housing. 14 is a development view, and FIG. 2D is a cross-sectional view taken along the line DD in the development view. The band type housing 14 has a structure having a portion 19 forming the outer shape of the band and a portion 20 forming the convex portion. The portion 20 forming the convex portion is disposed on the inner surface of the portion 19 forming the outer shape of the band. . The portion 20 forming the convex portion can be formed by preparing a plurality of strip-shaped separate plate materials and joining them to the plate material of the portion 19 forming the outer shape of the band by welding or the like. The band-shaped housing 14 is formed by bending the plate material formed in this manner, winding the portion 20 forming the convex portion in a band shape along the outer periphery of the stator 6, forming a cylindrical shape, making tight contact, and welding the joint. It can be manufactured by a joining method. At this time, the stator 6 is held in the axial direction by the clamping force, but if the clamping force is still insufficient, the stator 6 can be fixed using a stopper such as a pin.
【００１３】かかる本発明の第二の実施の形態において
は、凸部を形成する部分２０がステータ６の外周と密接
してステータ６を保持し、凸部と凸部の間の空間２１に
よってバンドの外形を構成する部分１９とステータ６と
の間に間隙が設けられ、その間隙がハウジング液流路部
を形成する。したがって、ウエットモータポンプの冷却
能力から要求されるモータ内部流路１１ｂの設計に従っ
て、凸部と凸部の間の空間２１の広さおよび凸部を形成
する部分２０の幅、高さ（厚み）、数を定め、これに対
応する短冊状の別部材をバンドの外形を形成する部分１
９に溶接等により接合することで、冷却能力を確保する
液流路を設けることができて、多種多様の外径の異なる
ステータに適合するためのハウジングの構造の変更を、
必要な短冊形の別部材を溶接する簡易な方法で行うこと
ができ、用意すべきハウジングの型の種類を少なくする
ことができる。またこの凸部を形成する部分２０とバン
ドの外形を構成する部分１９を圧延、プレス加工などで
一体化製作してもよく、また凸部を形成する部分２０は
その上面が平面であることは必要でなく、たとえば上面
が円弧状の凸形状を有するものでも良い。In the second embodiment of the present invention, the portion 20 forming the convex portion is in close contact with the outer periphery of the stator 6 to hold the stator 6, and the band 21 is formed by the space 21 between the convex portions. A gap is provided between the portion 19 constituting the outer shape of the above and the stator 6, and the gap forms a housing liquid flow path. Therefore, according to the design of the motor internal flow path 11b required from the cooling capacity of the wet motor pump, the width of the space 21 between the protrusions and the width and height (thickness) of the portion 20 forming the protrusions. , A number, and a strip-shaped separate member corresponding to this is formed into a portion 1 which forms the outer shape of the band.
9 by welding or the like, it is possible to provide a liquid flow path for securing the cooling capacity, and to change the structure of the housing to fit a variety of stators having different outer diameters.
The required strip-shaped separate members can be welded by a simple method, and the types of housing to be prepared can be reduced. The portion 20 forming the convex portion and the portion 19 forming the outer shape of the band may be integrally manufactured by rolling, pressing, or the like, and the portion 20 forming the convex portion may have a flat upper surface. It is not necessary, for example, the upper surface may have an arc-shaped convex shape.
【００１４】本発明の実施の形態においては、バンド型
ハウジングの板材の一方の面は平坦である図面で説明し
たが、これに限定されず、例えば波型断面の板材を曲げ
て筒状として、その内面の波形の凸部にステータ６を密
接させ、凹部とステータ６の間隙をハウジング液流路部
としたバンド型ハウジングとして本発明を簡単な工程で
実施できる。In the embodiment of the present invention, one side of the plate member of the band-type housing has been described with reference to the drawing in which it is flat. However, the present invention is not limited to this. The present invention can be implemented in a simple process as a band-type housing in which the stator 6 is brought into close contact with the corrugated convex portion on the inner surface and the gap between the concave portion and the stator 6 is a housing liquid flow path portion.
【００１５】[0015]
【発明の効果】本発明に係るウエットモータポンプにお
いては、ハウジングを、板材を筒状にし、その内面に前
記ステータの外周と密接するステータ保持部と、前記ス
テータとの間に間隙を設ける液流路部とを有するバンド
型ハウジングとしたので、冷却能力を確保する液流路を
設けることができた。さらに多種多様の外径の異なるス
テータに適合するためのハウジングの構造の変更を簡易
な方法で行うことができ、用意すべきハウジングの型の
種類を少なくすることができ、冷却能力を確保しつつ経
済効果が高いバンド型ハウジングを提供することができ
た。In the wet motor pump according to the present invention, the housing is formed of a cylindrical plate, and the inner surface of the housing is provided with a gap between the stator holding portion which is in close contact with the outer periphery of the stator and the stator. Since the housing was a band-type housing having a passage portion, a liquid flow path for ensuring cooling ability could be provided. Furthermore, the structure of the housing can be changed in a simple manner so as to fit a variety of stators having different outer diameters, the types of housing to be prepared can be reduced, and the cooling capacity can be secured. It is possible to provide a band-type housing with high economic effect.
【図１】 （ａ）と（ｂ）は本発明のウエットモータポ
ンプにおけるバンド型ハウジングの第一の実施の形態の
断面図、（ｃ）は内バンドの展開図、（ｄ）は展開した
内バンドの断面図である。FIGS. 1A and 1B are cross-sectional views of a band-type housing in a wet motor pump according to a first embodiment of the present invention, FIG. 1C is an expanded view of an inner band, and FIG. It is sectional drawing of a band.
【図２】 （ａ）と（ｂ）は本発明のウエットモータポ
ンプにおけるバンド型ハウジングの第二の実施の形態の
断面図、（ｃ）はその展開図、（ｄ）はその展開図にお
ける断面図である。FIGS. 2A and 2B are cross-sectional views of a band-type housing in a wet motor pump according to a second embodiment of the present invention, FIG. 2C is a developed view thereof, and FIG. FIG.
【図３】 従来例のウエットモータポンプの断面図であ
る。FIG. 3 is a sectional view of a conventional wet motor pump.
【図４】 （ａ），（ｂ）は従来例の鋳物製ハウジング
の断面図である。FIGS. 4A and 4B are cross-sectional views of a conventional cast housing.
【図５】 従来例のバンド型ハウジングの断面図であ
る。FIG. 5 is a cross-sectional view of a conventional band-type housing.
１ モータ部、２ ポンプ部、３ ハウジング、４ 回
転軸、５ ロータ、６ステータ、７ 止め具、８ イン
ペラ、９ 吸込口、１０ 吐出口、１１ａ取扱い液導入
口、１１ｂ モータ内部流路、１１ｃ 取扱い液排出
口、１２ａロータとステータの間の流路、１２ｂ ハウ
ジング液流路部、１３ 鋳物製ハウジング、１４ バン
ド型ハウジング、１５ 内バンド、１６ 外バンド、１
７溝穴、１８ 溝穴でない部分、１９ バンドの外形を
構成する部分、２０ 凸部を形成する部分、２１ 凸部
と凸部の間の空間。1 motor part, 2 pump parts, 3 housings, 4 rotating shafts, 5 rotors, 6 stators, 7 stoppers, 8 impellers, 9 suction ports, 10 discharge ports, 11a handling liquid introduction ports, 11b motor internal flow paths, 11c handling Liquid outlet, 12a Flow path between rotor and stator, 12b Housing liquid flow path section, 13 Cast housing, 14 Band type housing, 15 Inner band, 16 Outer band, 1
7 slots, 18 non-slots, 19 parts forming the outer shape of the band, 20 parts forming the projections, 21 spaces between the projections.
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3H034 AA01 BB01 BB06 BB13 CC03 CC05 CC06 DD05 DD17 EE03 EE12 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3H034 AA01 BB01 BB06 BB13 CC03 CC05 CC06 DD05 DD17 EE03 EE12
Claims (2)
るモータ部と、モータ回転軸の少なくとも一方端に配設
されたポンプ部を有し、ポンプ部の取扱い液の一部をモ
ータ部に導入するウエットモータポンプにおいて、 前記ハウジングは、板材を筒状にし、その内面に前記ス
テータの外周と密接するステータ保持部と、前記ステー
タとの間に間隙を設ける液流路部とを有するバンド型ハ
ウジングであることを特徴とするウエットモータポン
プ。1. A wet part having a motor part having a rotor and a stator in a housing, and a pump part disposed at at least one end of a motor rotating shaft, and introducing a part of a liquid handled by the pump part into the motor part. In the motor pump, the housing is a band-type housing having a plate-like member having a tubular shape, an inner surface of which has a stator holding portion that is in close contact with the outer periphery of the stator, and a liquid flow path portion that has a gap between the stator and the stator. Wet motor pump characterized by the above-mentioned.
において、前記バンド型ハウジングは、前記ステータ外
周と密接する内バンドと、内バンドの外周にある外バン
ドの二層構造であって、内バンドに前記液流路部を形成
する溝穴または溝底を有する溝が設けられていることを
特徴とするウエットモータポンプ。2. The wet motor pump according to claim 1, wherein the band-type housing has a two-layer structure of an inner band in close contact with the outer periphery of the stator and an outer band on the outer periphery of the inner band. And a groove having a groove or a groove bottom for forming the liquid flow path portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001179910A JP4842456B2 (en) | 2001-06-14 | 2001-06-14 | Wet motor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001179910A JP4842456B2 (en) | 2001-06-14 | 2001-06-14 | Wet motor pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002371995A true JP2002371995A (en) | 2002-12-26 |
| JP4842456B2 JP4842456B2 (en) | 2011-12-21 |
Family
ID=19020402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001179910A Expired - Lifetime JP4842456B2 (en) | 2001-06-14 | 2001-06-14 | Wet motor pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4842456B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1519053A2 (en) * | 2003-09-29 | 2005-03-30 | Nikkiso Co., Ltd. | A submerged pump having a bearing lubricated by discharged fluid |
| JP2006101672A (en) * | 2004-09-30 | 2006-04-13 | Hitachi Industrial Equipment Systems Co Ltd | Rotating machine containing fluid flow path |
| CN102654128A (en) * | 2011-03-01 | 2012-09-05 | 胡道明 | Magnetic suspension underwater electric pump |
| WO2014054577A1 (en) * | 2012-10-03 | 2014-04-10 | 株式会社Ｓｃｈａｆｔ | Water-cooled motor structure and water-cooled housing |
| JP2018009458A (en) * | 2016-07-11 | 2018-01-18 | 株式会社Ihi | Binary power generation system and actuation medium pump |
| CN111373157A (en) * | 2017-11-20 | 2020-07-03 | 爱三工业株式会社 | Centrifugal pump |
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| JPS5082602A (en) * | 1973-07-28 | 1975-07-04 | ||
| JPH0296494A (en) * | 1988-10-03 | 1990-04-09 | Hitachi Ltd | Picture signal processing circuit |
| JPH0650283A (en) * | 1992-04-14 | 1994-02-22 | Ebara Corp | Full arc flow pump |
| JPH074380A (en) * | 1993-06-15 | 1995-01-10 | Ebara Corp | All-round flow canned motor pump |
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2001
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3775024A (en) * | 1970-05-20 | 1973-11-27 | Airtex Prod Division Of United | Submersible fuel pump |
| JPS5082602A (en) * | 1973-07-28 | 1975-07-04 | ||
| JPH0296494A (en) * | 1988-10-03 | 1990-04-09 | Hitachi Ltd | Picture signal processing circuit |
| JPH0650283A (en) * | 1992-04-14 | 1994-02-22 | Ebara Corp | Full arc flow pump |
| JPH074380A (en) * | 1993-06-15 | 1995-01-10 | Ebara Corp | All-round flow canned motor pump |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1519053A2 (en) * | 2003-09-29 | 2005-03-30 | Nikkiso Co., Ltd. | A submerged pump having a bearing lubricated by discharged fluid |
| EP1519053A3 (en) * | 2003-09-29 | 2009-04-08 | Nikkiso Co., Ltd. | A submerged pump having a bearing lubricated by discharged fluid |
| JP2006101672A (en) * | 2004-09-30 | 2006-04-13 | Hitachi Industrial Equipment Systems Co Ltd | Rotating machine containing fluid flow path |
| CN102654128A (en) * | 2011-03-01 | 2012-09-05 | 胡道明 | Magnetic suspension underwater electric pump |
| WO2014054577A1 (en) * | 2012-10-03 | 2014-04-10 | 株式会社Ｓｃｈａｆｔ | Water-cooled motor structure and water-cooled housing |
| JP2014075870A (en) * | 2012-10-03 | 2014-04-24 | Schaft Inc | Water-cooling motor structure and water-cooling housing |
| US9768662B2 (en) | 2012-10-03 | 2017-09-19 | Schaft Inc. | Water-cooled motor structure and water-cooled housing |
| JP2018009458A (en) * | 2016-07-11 | 2018-01-18 | 株式会社Ihi | Binary power generation system and actuation medium pump |
| CN111373157A (en) * | 2017-11-20 | 2020-07-03 | 爱三工业株式会社 | Centrifugal pump |
| CN111373157B (en) * | 2017-11-20 | 2022-01-14 | 爱三工业株式会社 | Centrifugal pump |
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|---|---|
| JP4842456B2 (en) | 2011-12-21 |
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