JP4274230B2 - pump - Google Patents

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Publication number
JP4274230B2
JP4274230B2 JP2006314177A JP2006314177A JP4274230B2 JP 4274230 B2 JP4274230 B2 JP 4274230B2 JP 2006314177 A JP2006314177 A JP 2006314177A JP 2006314177 A JP2006314177 A JP 2006314177A JP 4274230 B2 JP4274230 B2 JP 4274230B2
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Japan
Prior art keywords
pump
impeller
suction
mouth
mouth portion
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JP2006314177A
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JP2008128099A (en
Inventor
哲也 阿南
敏輔 酒井
晴海 福木
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Panasonic Corp
Panasonic Electric Works Co Ltd
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Panasonic Corp
Matsushita Electric Works Ltd
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Application filed by Panasonic Corp, Matsushita Electric Works Ltd filed Critical Panasonic Corp
Priority to JP2006314177A priority Critical patent/JP4274230B2/en
Priority to TW096141851A priority patent/TW200833956A/en
Priority to US11/979,662 priority patent/US20080260515A1/en
Priority to CNU2007201932780U priority patent/CN201173214Y/en
Priority to CNB2007101927664A priority patent/CN100564891C/en
Publication of JP2008128099A publication Critical patent/JP2008128099A/en
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Publication of JP4274230B2 publication Critical patent/JP4274230B2/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4273—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps suction eyes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0606—Canned motor pumps
    • F04D13/0633—Details of the bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/041—Axial thrust balancing
    • F04D29/0413—Axial thrust balancing hydrostatic; hydrodynamic thrust bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/047—Bearings hydrostatic; hydrodynamic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
    • F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

本発明は、モータにより駆動され、液体を吸入して吐出するポンプに関する。   The present invention relates to a pump that is driven by a motor and sucks and discharges liquid.

常時満水状態を維持して循環して使用されることが多いポンプでは、軸シール部分から液漏れが発生する場合があるため、羽根車が存在する通水部分とモーターが存在する駆動機構部分とを分離して、軸シール構造が設けられていない、例えばキャンドモーターポンプが使用されている。   In a pump that is often used in a circulating state while maintaining a full water condition, liquid leakage may occur from the shaft seal part.Therefore, a water passage part where an impeller exists and a drive mechanism part where a motor exists For example, a canned motor pump is used which is not provided with a shaft seal structure.

キャンドモーターポンプにおいては、隔壁内に羽根車と一体となったロータを収納し、これを軸シールせずに隔壁で密閉し、外部に設けたステータで発生する回転磁力を隔壁を介してロータのマグネットに作用させて駆動する構造となっている。   In a canned motor pump, a rotor integrated with an impeller is housed in a partition wall, which is sealed with a partition wall without sealing the shaft, and rotational magnetic force generated by an external stator is transmitted to the rotor via the partition wall. It is structured to be driven by acting on a magnet.

この他にも、モーターで円盤状や筒状のマグネットを回転させ、隔壁を介して内部のロータのマグネットと磁気結合させて回転駆動するマグネットカップリング式の電磁駆動ポンプが利用されている。   In addition to this, a magnet coupling type electromagnetically driven pump is used in which a disk-shaped or cylindrical magnet is rotated by a motor and is rotationally driven by being magnetically coupled to a magnet of an internal rotor via a partition wall.

これらのキャンドモーターポンプやマグネットカップリング式の電磁駆動ポンプは、ポンプケース内の羽根車に対して電磁力で動力伝達して軸シール構造を有しないことからシールレスポンプと呼ばれている。   These canned motor pumps and magnet coupling type electromagnetic drive pumps are called sealless pumps because they do not have a shaft seal structure by transmitting power to the impeller in the pump case by electromagnetic force.

このようなシールレスポンプのなかで、近年、市場からは、高揚程、高信頼性の小型ポンプが要望されており、ポンプ効率がよいポンプの必要性が生じている。   Among such sealless pumps, in recent years, the market demands a small pump with a high head and high reliability, and there is a need for a pump with high pump efficiency.

ポンプ効率を考慮した様々な構造が採用されており、ある自吸式ポンプの場合は仕切板マウス部内径と羽根車の外径との隙間を小さくし、揚水性能及びポンプ効率を向上させている（例えば特許文献１参照）。
特開２００５−４８６７５号公報 Various structures that take pump efficiency into consideration are adopted. In the case of a self-priming pump, the clearance between the inner diameter of the partition plate mouth portion and the outer diameter of the impeller is reduced to improve pumping performance and pump efficiency. (For example, refer to Patent Document 1).
JP 2005-48675 A

しかしながら前記従来技術の特許文献１に記載の自吸式ポンプでは、仕切板を微調整しながらビス締めによる固定で隙間管理をしており、工数アップとなっていた。また、この自吸式ポンプでは、１ヶ所の隙間で漏れる水量を少なくする構造であり、十分な抵抗となっていなかった。   However, in the self-priming pump described in Patent Document 1 of the prior art, the gap is managed by fixing with a screw while finely adjusting the partition plate, which increases man-hours. Further, this self-priming pump has a structure that reduces the amount of water leaking through a gap in one place, and does not have sufficient resistance.

そこで本発明は、このような従来の課題を解決するものであり、組立が容易で、冷媒の環流・漏れを防止する十分な抵抗（流路抵抗もしくは通水抵抗）を持つ構造としたポンプを提供することを目的とする。   Therefore, the present invention solves such a conventional problem, and a pump having a structure that is easy to assemble and has sufficient resistance (flow path resistance or water flow resistance) to prevent refrigerant recirculation / leakage. The purpose is to provide.

請求項１に記載の発明は、液体を吸排する羽根車を内蔵したポンプ部と、ポンプ部が収納され液体の吸入口と吐出口が配置されたポンプケースと、ポンプ部を駆動するモータ部と、を有したポンプにおいて、前記羽根車に前記ポンプケース側へ突出する円筒状の吸入口マウス部を設けると共に、この吸入口マウス部を遊嵌状態で嵌入させる環状凹部を前記ポンプケースのケーシング吸入口部付近に設け、前記ケーシング吸入口部の先端部を、前記羽根車への冷媒の吸込を阻害させない高さまで突出させ、そのケーシング吸入口部の先端部に内側から外側に斜面又は曲面を設け、前記羽根車の吸入口マウス部の外周壁面にリブ形状部を設け、このリブ形状部を遊嵌状態で嵌入させるくぼみ形状部を前記環状凹部の内周壁面に設けたことを特徴とする。 The invention described in claim 1 includes a pump unit including an impeller for sucking and discharging liquid, a pump case in which the pump unit is accommodated and a liquid suction port and a discharge port are disposed, and a motor unit that drives the pump unit. In the pump having the above-described configuration, the impeller is provided with a cylindrical suction mouth mouth portion projecting toward the pump case, and an annular recess for fitting the suction mouth mouth portion in a loosely fitted state is provided in the casing suction of the pump case. Provided near the mouth, the tip of the casing suction port protrudes to a height that does not impede the suction of the refrigerant into the impeller, and a slope or curved surface is provided on the tip of the casing suction port from the inside to the outside. and characterized in that the rib-shaped portion is provided on the outer peripheral wall surface of the inlet mouth portion of the impeller, the shaped portion recess is fitted into the rib-shaped portion in a loosely provided on the inner peripheral wall surface of the annular recess That.

請求項２に記載の発明は、液体を吸排する羽根車を内蔵したポンプ部と、ポンプ部が収納され液体の吸入口と吐出口が配置されたポンプケースと、ポンプ部を駆動するモータ部と、を有したポンプにおいて、前記羽根車に前記ポンプケース側へ突出する円筒状の吸入口マウス部を設けると共に、この吸入口マウス部を遊嵌状態で嵌入させる環状凹部を前記ポンプケースのケーシング吸入口部付近に設け、前記ケーシング吸入口部の先端部を、前記羽根車への冷媒の吸込を阻害させない高さまで突出させ、そのケーシング吸入口部の先端部に内側から外側に斜面又は曲面を設け、前記羽根車の吸入口マウス部の外周壁面にＶ字形溝を設けたことを特徴とする。 The invention described in claim 2 includes a pump unit including an impeller that sucks and discharges liquid, a pump case in which the pump unit is housed and a liquid suction port and a discharge port are disposed, and a motor unit that drives the pump unit. In the pump having the above-described configuration, the impeller is provided with a cylindrical suction mouth mouth portion projecting toward the pump case, and an annular recess for fitting the suction mouth mouth portion in a loosely fitted state is provided in the casing suction of the pump case. Provided near the mouth, the tip of the casing suction port protrudes to a height that does not impede the suction of the refrigerant into the impeller, and a slope or curved surface is provided on the tip of the casing suction port from the inside to the outside. A V-shaped groove is provided on the outer peripheral wall surface of the inlet mouth portion of the impeller.

請求項３に記載の発明は、液体を吸排する羽根車を内蔵したポンプ部と、ポンプ部が収納され液体の吸入口と吐出口が配置されたポンプケースと、ポンプ部を駆動するモータ部と、を有したポンプにおいて、前記羽根車に前記ポンプケース側へ突出する円筒状の吸入口マウス部を設けると共に、この吸入口マウス部を遊嵌状態で嵌入させる環状凹部を前記ポンプケースのケーシング吸入口部付近に設け、前記ケーシング吸入口部の先端部を、前記羽根車への冷媒の吸込を阻害させない高さまで突出させ、そのケーシング吸入口部の先端部に内側から外側に斜面又は曲面を設け、前記羽根車の吸入口マウス部をマグネットとし、前記マグネットに磁性流体を磁力により付着させ、該吸入口マウス部とこの吸入口マウス部を遊嵌状態で嵌入させる環状凹部との空間を前記磁性流体で封入したことを特徴とする。 According to a third aspect of the present invention, there is provided a pump unit having a built-in impeller for sucking and discharging liquid, a pump case in which the pump unit is housed and a liquid suction port and a discharge port are arranged, a motor unit for driving the pump unit, In the pump having the above-described configuration, the impeller is provided with a cylindrical suction mouth mouth portion projecting toward the pump case, and an annular recess for fitting the suction mouth mouth portion in a loosely fitted state is provided in the casing suction of the pump case. Provided near the mouth, the tip of the casing suction port protrudes to a height that does not impede the suction of the refrigerant into the impeller, and a slope or curved surface is provided on the tip of the casing suction port from the inside to the outside. , an inlet mouth portion of the impeller and the magnet, the magnet and the magnetic fluid is adhered by magnetic force, thereby fitting the inlet mouth portion and the suction inlet mouth portion in loosely The space between Jo recess, characterized in that sealed by the magnetic fluid.

本発明は、組立が容易で、且つ液体の環流・漏れを防止する十分な抵抗を持つポンプ構造としたことで、ポンプ効率を向上させることのできるポンプを提供することができる。   The present invention can provide a pump capable of improving pump efficiency by providing a pump structure that is easy to assemble and has sufficient resistance to prevent liquid recirculation / leakage.

本発明の実施の形態は、液体を吸排する羽根車を内蔵したポンプ部と、ポンプ部が収納され液体の吸入口と吐出口が配置されたポンプケースと、ポンプ部を駆動するモータ部と、を有したポンプにおいて、前記羽根車に前記ポンプケース側へ突出する円筒状の吸入口マウス部を設けると共に、この吸入口マウス部を遊嵌状態で嵌入させる環状凹部を前記ポンプケースのケーシング吸入口部付近に設け、前記ケーシング吸入口部の先端部を、前記羽根車への冷媒の吸込を阻害させない高さまで突出させ、そのケーシング吸入口部の先端部に内側から外側に斜面又は曲面を設けたものである。   An embodiment of the present invention includes a pump unit incorporating an impeller that sucks and discharges liquid, a pump case in which the pump unit is housed and a liquid suction port and a discharge port are arranged, a motor unit that drives the pump unit, In the pump having the above structure, the impeller has a cylindrical suction mouth mouth portion projecting toward the pump case, and an annular recess for fitting the suction mouth mouth portion in a loosely fitted state is provided in the casing suction mouth of the pump case. The tip of the casing suction port is protruded to a height that does not impede the suction of the refrigerant into the impeller, and a slope or curved surface is provided on the tip of the casing suction port from the inside to the outside. Is.

前記ケーシング吸入口部の先端部を、羽根車への冷媒の吸込を阻害させない高さまで突出させるとは、ケーシング吸入口部の先端部は吸入口から吸込まれた冷媒の通水ガイドのためできるだけ長くし、羽根への冷媒の流れを阻害しない羽根上面位置より上まで突出させることである。   The tip of the casing suction port protrudes to a height that does not impede the suction of the refrigerant into the impeller. And it is made to protrude above the blade | wing upper surface position which does not inhibit the flow of the refrigerant | coolant to a blade | wing.

また、本実施の形態のポンプにおいては、前記羽根車の前面シュラウド部に凸形状部を設け、この凸形状部を遊嵌状態で嵌入させる凹形状部を前記ポンプケースのケーシング壁面に設けてもよい。   In the pump according to the present embodiment, a convex shape portion may be provided on the front shroud portion of the impeller, and a concave shape portion may be provided on the casing wall surface of the pump case to allow the convex shape portion to be fitted in a loosely fitted state. Good.

また、本実施の形態のポンプにおいては、前記羽根車の吸入口マウス部の外周壁面にリブ形状部を設け、このリブ形状部を遊嵌状態で嵌入させるくぼみ形状部を前記環状凹部の内周壁面に設けてもよい。   Further, in the pump according to the present embodiment, a rib-shaped portion is provided on the outer peripheral wall surface of the suction mouth mouth portion of the impeller, and a hollow-shaped portion that allows the rib-shaped portion to be fitted in a loosely fitted state is provided on the inner periphery of the annular recess. It may be provided on the wall surface.

また、本実施の形態のポンプにおいては、前記羽根車の吸入口マウス部の外周壁面にＶ字形溝を設けてもよい。   Moreover, in the pump of this Embodiment, you may provide a V-shaped groove | channel in the outer peripheral wall surface of the inlet mouth mouse | mouth part of the said impeller.

また、本実施の形態のポンプにおいては、前記羽根車の吸入口マウス部をマグネットとし、前記マグネットに磁性流体を磁力により付着させ、該吸入口マウス部とこの吸入口マウス部を遊嵌状態で嵌入させる環状凹部との空間を前記磁性流体で封入してもよい。   In the pump of the present embodiment, the suction mouth mouse portion of the impeller is a magnet, and a magnetic fluid is attached to the magnet by a magnetic force so that the suction mouth mouth portion and the suction mouth mouse portion are loosely fitted. The space with the annular recess to be inserted may be sealed with the magnetic fluid.

これにより、本実施の形態のポンプによれば、組立が容易で、且つ液体の環流・漏れを防止する十分な抵抗を持つポンプ構造としたポンプを提供することができる。そして、上記ポンプを給水装置等の液体供給装置に組み込むようにすれば、液体供給装置の使い勝手を大いに高めることができる。   Thereby, according to the pump of the present embodiment, it is possible to provide a pump having a pump structure that is easy to assemble and has sufficient resistance to prevent liquid recirculation / leakage. And if the said pump is integrated in liquid supply apparatuses, such as a water supply apparatus, the usability of a liquid supply apparatus can be improved greatly.

以下、本発明を適用した具体的な実施例について図面を参照しながら詳細に説明する。   Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings.

（実施例１）
図１に示すように、発熱部品１が基板２に実装されており、発熱部品１と冷媒（例えば水など）とで熱交換を行ない発熱部品１を冷却するヒートスプレッター等の冷却器３が配置されている。 (Example 1)
As shown in FIG. 1, a heat generating component 1 is mounted on a substrate 2, and a cooler 3 such as a heat spreader that performs heat exchange between the heat generating component 1 and a refrigerant (for example, water) and cools the heat generating component 1 is disposed. Has been.

また、冷媒から熱を取り除くラジエター等の放熱器４と、冷媒を貯めておくリザーブタンク５と、さらに冷媒を循環させるポンプ６が配置されていて、前記冷却器３と放熱器４とリザーブタンク５、およびポンプ６を接続する配管７が取りつけられている。   Further, a radiator 4 such as a radiator that removes heat from the refrigerant, a reserve tank 5 that stores the refrigerant, and a pump 6 that circulates the refrigerant are arranged. The cooler 3, the radiator 4, and the reserve tank 5. , And a pipe 7 for connecting the pump 6 is attached.

リザーブタンク５内の冷媒は、ポンプ６から吐出され、配管７を通って冷却器３に送られ、発熱部品１の熱を奪うことでその温度が上昇して放熱器４に送られ、放熱器４で冷されてその温度が降下してリザーブタンク５へ戻る。このような冷却循環装置は、ポンプ６で冷媒を循環させて発熱部品１を冷却するものである。 The refrigerant in the reserve tank 5 is discharged from the pump 6, sent to the cooler 3 through the pipe 7, deprived of heat of the heat generating component 1, and its temperature rises and is sent to the radiator 4. After being cooled at 4, the temperature drops and returns to the reserve tank 5. Such a cooling circulation device cools the heat generating component 1 by circulating a refrigerant with a pump 6.

図２に示すように、ポンプ６の本体８の上側には冷媒の吸入口９と吐出口１０が設けられ冷媒を吸排するポンプ部１１を内蔵したポリフェニレンサルファイド（ＰＰＳ）等のプラスチックやステンレス等の金属からなるポンプケース１２が配置されている。   As shown in FIG. 2, a suction port 9 and a discharge port 10 for the refrigerant are provided on the upper side of the main body 8 of the pump 6, and a plastic such as polyphenylene sulfide (PPS) having a built-in pump part 11 for sucking and discharging the refrigerant, stainless steel, etc. A pump case 12 made of metal is disposed.

このポンプケース１２の下側には、ポンプ６の駆動源となるモータ部１３を収納し、モータ部１３とポンプ部１１を隔離してポンプ部１１からモータ部１３への冷媒の浸入を防止するためのアルミ等の金属や耐熱性プラスチック等からなる防水隔壁１４が設置されている。   A motor unit 13 serving as a drive source for the pump 6 is housed under the pump case 12, and the motor unit 13 and the pump unit 11 are isolated to prevent refrigerant from entering the motor unit 13 from the pump unit 11. A waterproof partition 14 made of a metal such as aluminum or a heat-resistant plastic is installed.

モータ部１３は、磁界を発生させる円筒形状のステータ１５と、そのステータ１５を制御する制御部１６と、ステータ１５および制御部１６の露出を防ぐ蓋１７と、から構成されている。ステータ１５は、防水隔壁１4の凹状になった外側に取りつけられている。ステータ１５の下側には、例えばトランスやトランジスタ等の電子部品を備えた制御部１６が取りつけられている。   The motor unit 13 includes a cylindrical stator 15 that generates a magnetic field, a control unit 16 that controls the stator 15, and a lid 17 that prevents the stator 15 and the control unit 16 from being exposed. The stator 15 is attached to the outer side of the waterproof partition 14 that is recessed. A control unit 16 including electronic components such as a transformer and a transistor is attached below the stator 15.

一方、ポンプ部１１は、ステータ１５が発生させた磁界により回転駆動され永久磁石を外周部に固定させた円筒形状のロータ１８と、そのロータ１８と一体に表面に取りつけられた複数の羽根１９とを有している。そして、このロータ１８には、前記複数の羽根１９により冷媒を吸排するＰＰＳ等のプラスチック等からなる同じく円筒形状の羽根車２０が取りつけられている。   On the other hand, the pump unit 11 includes a cylindrical rotor 18 that is rotationally driven by a magnetic field generated by the stator 15 and has a permanent magnet fixed to the outer peripheral portion, and a plurality of blades 19 that are integrally attached to the rotor 18 on the surface. have. The rotor 18 is also provided with a cylindrical impeller 20 that is made of plastic such as PPS that sucks and discharges the refrigerant by the plurality of blades 19.

羽根車２０の回転の中心には、焼成カーボン或いはモールドカーボンからなる軸受２１が取り付けられていて、ロータ１８と羽根車２０を回転自在に支持するステンレス等の金属からなる円柱形状の軸２２が配置されている。   At the center of rotation of the impeller 20, a bearing 21 made of baked carbon or molded carbon is attached, and a cylindrical shaft 22 made of metal such as stainless steel that rotatably supports the rotor 18 and the impeller 20 is arranged. Has been.

そして、軸２２の両側には、軸受２１と摺接するセラミック等からなる中空円板形状の軸受板２３が取りつけられている。さらに、ロータ１８は、防水隔壁１４を介してステータ１５と対向するように設置されている。   On both sides of the shaft 22, hollow disk-shaped bearing plates 23 made of ceramic or the like that are in sliding contact with the bearing 21 are attached. Further, the rotor 18 is installed so as to face the stator 15 through the waterproof partition 14.

ここで、図４（Ａ）に示すように、羽根車２０に前記ポンプケース１２側へ突出する円筒形状の吸入口マウス部２４を設けると共に、この吸入口マウス部２４を遊嵌状態で嵌入させる環状凹部２５を前記ポンプケース１２のケーシング吸入口部４０付近に設け、前記ケーシング吸入口部４０の先端部４０Ａを、前記羽根車２０への冷媒の吸込を阻害させない高さまで突出させ、そのケーシング吸入口部４０の先端部４０Ａに内側から外側に斜面又は曲面を設けている。   Here, as shown in FIG. 4A, the impeller 20 is provided with a cylindrical inlet mouth portion 24 that protrudes toward the pump case 12, and the inlet mouth portion 24 is fitted in a loosely fitted state. An annular recess 25 is provided in the vicinity of the casing suction port 40 of the pump case 12, and the front end 40A of the casing suction port 40 is protruded to a height that does not hinder the suction of the refrigerant into the impeller 20, and the casing suction. The tip 40A of the mouth 40 is provided with a slope or curved surface from the inside to the outside.

または、図５に示すように、羽根車２０の前面シュラウド部２０Ａに凸形状部２６を設け、その凸形状部２６を遊嵌状態で嵌入させる凹形状部２７を前記ポンプケース１２のケーシング壁面１２Ａに設けている。この実施例では、吸入口マウス部２４の外側の前面シュラウド部２０Ａに環状をなす２つの凸形状部２６を設けている。   Alternatively, as shown in FIG. 5, a convex shape portion 26 is provided on the front shroud portion 20 </ b> A of the impeller 20, and a concave shape portion 27 into which the convex shape portion 26 is fitted in a loosely fitted state is provided as a casing wall surface 12 </ b> A of the pump case 12. Provided. In this embodiment, two convex portions 26 having an annular shape are provided on the front shroud portion 20A outside the inlet mouth portion 24.

または、図６に示すように、羽根車２０の吸入口マウス部２４の外周壁面２４Ａにリブ形状部２８を設け、そのリブ形状部２８を遊嵌状態で嵌入させるくぼみ形状部２９を前記環状凹部２５の内周壁面２５Ａに設けている。この実施例では、吸入口マウス部２４の外周壁面２４Ａに、その高さ方向に断面形状を半円形状とした環状突起をリブ形状部２８として２つ設けている。 Alternatively, as shown in FIG. 6, a rib-shaped portion 28 is provided on the outer peripheral wall surface 24A of the suction mouth mouth portion 24 of the impeller 20, and the hollow-shaped portion 29 into which the rib-shaped portion 28 is fitted in a loosely fitted state is formed in the annular recess. 25 on the inner peripheral wall surface 25A. In this embodiment, two annular protrusions 28 having a semicircular cross-sectional shape in the height direction are provided as rib-shaped portions 28 on the outer peripheral wall surface 24 </ b> A of the inlet mouth portion 24.

または、図７に示すように、羽根車２０の吸入口マウス部２４の外周壁面２４Ａに平面視Ｖ字形状をなすＶ字形溝３０を複数設けている。このＶ字形溝３０は、羽根車２０の回転方向に沿ってそのＶ字形状を横向きとして複数並べられて形成されている。   Alternatively, as shown in FIG. 7, a plurality of V-shaped grooves 30 having a V shape in plan view are provided on the outer peripheral wall surface 24 </ b> A of the inlet mouth portion 24 of the impeller 20. A plurality of the V-shaped grooves 30 are formed side by side along the rotational direction of the impeller 20 so that the V-shape is lateral.

または、図８に示すように、羽根車２０の吸入口マウス部２４をマグネット３１とし、前記マグネット３１に磁性流体３２を磁力により付着させ、前記吸入口マウス部２４とこの吸入口マウス部２４を遊嵌状態で嵌入させる環状凹部２５との空間を前記磁性流体３２で封入している。   Alternatively, as shown in FIG. 8, the suction mouth mouse portion 24 of the impeller 20 is used as a magnet 31, and a magnetic fluid 32 is attached to the magnet 31 by a magnetic force so that the suction mouth mouth portion 24 and the suction mouth mouse portion 24 are connected to each other. A space with the annular recess 25 to be fitted in a loosely fitted state is enclosed with the magnetic fluid 32.

よって、このように構成された実施例のポンプによれば、組立が容易で、冷媒の環流・漏れを防止する十分な抵抗を持つポンプ構造とすることができる。   Therefore, according to the pump of the embodiment configured in this way, it is possible to provide a pump structure that is easy to assemble and has sufficient resistance to prevent refrigerant recirculation / leakage.

以上の構成において、本実施例１におけるポンプおよびそのポンプを備えた冷却循環装置の動作を図１から図８を用いて説明する。   In the above configuration, the operation of the pump in the first embodiment and the cooling circulation device including the pump will be described with reference to FIGS.

ポンプ６において、制御部１６により制御されたステータ１５が磁界を発生させると、その磁界によりロータ１８が回転駆動される。   In the pump 6, when the stator 15 controlled by the control unit 16 generates a magnetic field, the rotor 18 is rotationally driven by the magnetic field.

ロータ１８が回転駆動されると、ロータ１８と一体に形成された羽根車２０が同じく回転駆動されることでポンプ６が駆動される。ポンプ６が駆動されると、冷媒は、ポンプ６の上部側面に設置された吸入口９より羽根車２０へと吸入される。   When the rotor 18 is rotationally driven, the impeller 20 formed integrally with the rotor 18 is also rotationally driven to drive the pump 6. When the pump 6 is driven, the refrigerant is sucked into the impeller 20 from the suction port 9 provided on the upper side surface of the pump 6.

吸入された冷媒は、回転する羽根車２０に設けられた複数の羽根１９により周囲方向へ圧送され、吐出された冷媒は、吐出口１０に接続された配管７を通って、冷却器３に送られ、発熱部品１の熱を奪うことで冷媒の温度が上昇して放熱器４に送られ、放熱器４で冷されて冷媒の温度が降下してリザーブタンク５に戻る。   The sucked refrigerant is pumped in the circumferential direction by a plurality of blades 19 provided on the rotating impeller 20, and the discharged refrigerant is sent to the cooler 3 through the pipe 7 connected to the discharge port 10. Then, by taking the heat of the heat generating component 1, the temperature of the refrigerant rises and is sent to the radiator 4, and is cooled by the radiator 4, and the temperature of the refrigerant falls and returns to the reserve tank 5.

この冷却循環装置は、冷媒をポンプ６を用いることにより循環させ、その循環する冷媒により前記発熱部品１を冷却するものである。冷却器３内の流路は、受熱性能を高めるために特に配管抵抗が高くなっている。   This cooling circulation device circulates a refrigerant by using a pump 6 and cools the heat generating component 1 by the circulating refrigerant. The flow path in the cooler 3 has a particularly high pipe resistance in order to improve the heat receiving performance.

以上のように本実施例１によれば、冷媒は、回転する羽根車２０に設けられた複数の羽根１９により周囲方向へ圧送され、側面に配置された吐出口１０よりポンプ６外へ吐出されるが、冷媒の一部は、羽根車２０の吸入口付近が負圧なため羽根車２０の吸入口マウス部２４へ戻る（液体が環流する・漏れる）。環流する冷媒は、図４（Ａ）に示すように、羽根車２０の前面シュラウド部２０Ａとポンプケース１２のケーシング壁面１２Ａ間に形成される帰還流路４２を矢印Ｘで示すように流れる。そのため、ポンプ効率が低下する原因となっていた。 As described above, according to the first embodiment, the refrigerant is pumped in the circumferential direction by the plurality of blades 19 provided in the rotating impeller 20 and discharged from the pump 6 through the discharge port 10 disposed on the side surface. However, a part of the refrigerant returns to the inlet mouth portion 24 of the impeller 20 because of the negative pressure in the vicinity of the inlet of the impeller 20 (liquid circulates or leaks). As shown in FIG. 4A, the circulating refrigerant flows through the return flow path 42 formed between the front shroud portion 20 </ b> A of the impeller 20 and the casing wall surface 12 </ b> A of the pump case 12 as indicated by an arrow X. For this reason, the pump efficiency is reduced.

図３は従来の構造であるが、羽根車２０の吸入口マウス部４１とこれと対向するポンプケース１２の対向部４３の長さが短いため、できるだけこの間の隙間Ｓを小さくして羽根車２０の吸入口マウス部４１へと液体が戻る（矢印Ｘで示すように液体が環流する・漏れる）ことを防止していた。そのため、この従来構造では、組立には隙間管理が必要であった。   Although FIG. 3 shows a conventional structure, since the length of the suction mouth mouth portion 41 of the impeller 20 and the facing portion 43 of the pump case 12 facing this is short, the gap S between them is made as small as possible to reduce the impeller 20. The liquid is prevented from returning to the inlet mouth mouth portion 41 (the liquid circulates or leaks as indicated by the arrow X). Therefore, in this conventional structure, gap management is necessary for assembly.

本実施例１の図４（Ａ）は、羽根車２０に前記ポンプケース１２側へ突出する円筒形状の吸入口マウス部２４を設けると共に、この吸入口マウス部２４を遊嵌状態で嵌入させる環状凹部２５を前記ポンプケース１２のケーシング吸入口部４０付近に設け、前記ケーシング吸入口部４０の先端部４０Ａを、前記羽根車２０への冷媒の吸込を阻害させない高さまで突出させ、そのケーシング吸入口部４０の先端部４０Ａに内側から外側に斜面又は曲面を設けることで流路抵抗を増加させている。   In FIG. 4A of the first embodiment, the impeller 20 is provided with a cylindrical inlet mouth portion 24 that protrudes toward the pump case 12, and the inlet mouth portion 24 is fitted in a loosely fitted state. A recess 25 is provided in the vicinity of the casing suction port 40 of the pump case 12, and the front end 40A of the casing suction port 40 is projected to a height that does not impede the suction of the refrigerant into the impeller 20, and the casing suction port The flow path resistance is increased by providing a slope or a curved surface from the inner side to the outer side at the distal end portion 40A of the portion 40.

このように、ケーシング吸入口部４０の先端部４０Ａを羽根車２０への冷媒の吸込を阻害させない高さまで突出させれば、流路が長くなり流体が戻る（矢印Ｘで示すように液体が環流する・漏れる）流路抵抗を増加させることができる。また、ケーシング吸入口部４０の先端部４０Ａに内側から外側に斜面又は曲面を設ければ、吸入口から羽根への冷媒の流れをスムーズにすることができる。   Thus, if the front end portion 40A of the casing suction port portion 40 is projected to a height that does not impede the suction of the refrigerant into the impeller 20, the flow path becomes longer and the fluid returns (as indicated by the arrow X, the liquid flows back). The flow resistance can be increased. Further, if a slope or a curved surface is provided from the inner side to the outer side at the front end portion 40A of the casing suction port portion 40, the flow of the refrigerant from the suction port to the blades can be made smooth.

このように、羽根車２０の前面シュラウド部２０Ａとポンプケース１２のケーシング壁面１２Ａ間の帰還流路４２を通って吸入口マウス部２４へと戻る冷媒の流路抵抗は、前記円筒状の吸入口マウス部２４が設けられることで増加するため、冷媒の環流及び漏れを防止することが可能となる。 As described above, the flow path resistance of the refrigerant returning to the suction mouth portion 24 through the return flow path 42 between the front shroud portion 20A of the impeller 20 and the casing wall surface 12A of the pump case 12 is the cylindrical suction port. Since it increases by providing the mouse | mouth part 24, it becomes possible to prevent the recirculation | reflux and leakage of a refrigerant | coolant.

なお、図４（Ｂ）に示すように、ケーシング吸入口部４０の先端部４０Ａがモータ部１３側へ延長された場合は、冷媒の流れを阻害し効率が悪化する。そのため、この冷媒の流れを阻害しない程度の高さ位置に、前記ケーシング吸入口部４０の先端部４０Ａを設定する。   As shown in FIG. 4B, when the front end portion 40A of the casing suction port portion 40 is extended to the motor portion 13 side, the refrigerant flow is hindered and the efficiency is deteriorated. Therefore, the tip end portion 40A of the casing suction port portion 40 is set at a height that does not hinder the flow of the refrigerant.

図５も、羽根車２０の前面シュラウド部２０Ａに凸形状部２６を設け、その凸形状部２６を遊嵌状態で嵌入させる凹形状部２７を前記ポンプケース１２のケーシング壁面１２Ａに設けることで、前記帰還流路４２の流路抵抗を増加させている。   In FIG. 5, the convex portion 26 is provided on the front shroud portion 20 </ b> A of the impeller 20, and the concave portion 27 is provided on the casing wall surface 12 </ b> A of the pump case 12 so that the convex portion 26 is fitted in a loosely fitted state. The flow path resistance of the return flow path 42 is increased.

図６も同様に、羽根車２０の吸入口マウス部２４の外周壁面２４Ａにリブ形状部２８を設け、そのリブ形状部２８を遊嵌状態で嵌入させるくぼみ形状部２９を前記環状凹部２５の内周壁面２５Ａに設けることで、前記帰還流路４２の流路抵抗を増加させている。   Similarly, in FIG. 6, a rib-shaped portion 28 is provided on the outer peripheral wall surface 24 </ b> A of the inlet mouth portion 24 of the impeller 20, and a hollow-shaped portion 29 for fitting the rib-shaped portion 28 in a loosely fitted state is formed in the annular recess 25. By providing the peripheral wall surface 25A, the flow path resistance of the return flow path 42 is increased.

図７は、羽根車２０の吸入口マウス部２４の外周壁面２４ＡにＶ字形溝３０を設けることで、吸入口マウス部２４の外周壁面２４Ａとポンプケース１２の吸入口凹形状部２５における内壁面２５Ａとの隙間に動圧を発生させることにより、前記帰還流路４２の流路抵抗を増加させている。   7 shows that the V-shaped groove 30 is provided on the outer peripheral wall surface 24A of the inlet mouth portion 24 of the impeller 20 so that the outer peripheral wall surface 24A of the inlet mouth portion 24 and the inner wall surface of the inlet concave portion 25 of the pump case 12 can be obtained. By generating a dynamic pressure in the gap with 25A, the flow path resistance of the return flow path 42 is increased.

図８は、羽根車２０の吸入口マウス部２４をマグネット３１とし、前記マグネット３１に磁性流体３２を磁力により付着させ、前記吸入口マウス部２４とこの吸入口マウス部２４を挿入させる吸入口凹形状部２５との空間に磁性流体３２を封入することで、冷媒が戻る（液体が環流する・漏れる）ことを防止している。   In FIG. 8, the suction mouth mouth portion 24 of the impeller 20 is a magnet 31, and a magnetic fluid 32 is attached to the magnet 31 by a magnetic force so that the suction mouth mouth portion 24 and the suction mouth mouth portion 24 are inserted. By enclosing the magnetic fluid 32 in the space with the shape portion 25, the refrigerant is prevented from returning (liquid circulates or leaks).

よって、本実施例によれば、組立時に隙間管理をする必要がなく、組立が容易で、液体の環流・漏れを防止する十分な抵抗を持つ構造としたポンプ効率が高いポンプを提供できる。   Therefore, according to the present embodiment, it is not necessary to manage gaps during assembly, and it is possible to provide a pump with high pump efficiency that is easy to assemble and has a structure with sufficient resistance to prevent liquid circulation and leakage.

なお、本実施例においては、液体供給装置の一実施例として冷却循環装置を示しているが、例えば井戸ポンプ装置や給湯装置または排水供給装置等、どのような液体供給装置であっても良い。   In the present embodiment, a cooling circulation device is shown as an embodiment of the liquid supply device, but any liquid supply device such as a well pump device, a hot water supply device, or a drainage supply device may be used.

実施例１に示す冷却循環装置の全体概要図である。1 is an overall schematic diagram of a cooling and circulating apparatus shown in Embodiment 1. FIG. 実施例１に示すポンプの断面図である。It is sectional drawing of the pump shown in Example 1. FIG. 従来構造の羽根車とポンプケース部の要部断面図である。It is principal part sectional drawing of the impeller of a conventional structure, and a pump case part. 実施例１に示すポンプにおける羽根車とポンプケース部の一構成例を示す要部断面図である。It is principal part sectional drawing which shows the example of 1 structure of the impeller in a pump shown in Example 1, and a pump case part. 実施例１に示すポンプにおける羽根車とポンプケース部の別の構成例を示す要部断面図である。It is principal part sectional drawing which shows another structural example of the impeller in a pump shown in Example 1, and a pump case part. 実施例１に示すポンプにおける羽根車とポンプケース部のさらに別の構成例を示す要部断面図である。It is principal part sectional drawing which shows another structural example of the impeller in a pump shown in Example 1, and a pump case part. 実施例１に示すポンプにおける羽根車とポンプケース部のさらに別の構成例を示す要部断面図である。It is principal part sectional drawing which shows another structural example of the impeller in a pump shown in Example 1, and a pump case part. 実施例１に示すポンプにおける羽根車とポンプケース部のさらに別の構成例を示す要部断面図である。It is principal part sectional drawing which shows another structural example of the impeller in a pump shown in Example 1, and a pump case part.

符号の説明Explanation of symbols

１ 発熱部品
２ 基板
３ 冷却器
４ 放熱器
５ リザーブタンク
６ ポンプ
７ 配管
８ 本体
９ ポンプケース
１１ ポンプ部
１３ モータ部
１４ 防水隔壁
１５ ステータ
１６ 制御部
１８ ロータ
２０ 羽根車
２１ 軸受
２２ 軸
２３ 軸受板
２４ 羽根車の吸入口マウス部
２５ ケーシングの環状凹部
２６ 前面シュラウド部の凸形状部
２７ ケーシングの凹形状部
２８ リブ形状部
２９ くぼみ形状部
３０ Ｖ字形溝
３１ マグネット
３２ 磁性流体 DESCRIPTION OF SYMBOLS 1 Heating component 2 Board | substrate 3 Cooler 4 Radiator 5 Reserve tank 6 Pump 7 Piping 8 Main body 9 Pump case 11 Pump part 13 Motor part 14 Waterproof partition 15 Stator 16 Control part 18 Rotor 20 Impeller 21 Bearing 22 Shaft 23 Bearing plate 24 Impeller inlet mouth part 25 Casing annular recess 26 Front shroud convex part 27 Casing concave part 28 Rib part 29 Recessed part 30 V-shaped groove 31 Magnet 32 Magnetic fluid

Claims (3)

液体を吸排する羽根車を内蔵したポンプ部と、ポンプ部が収納され液体の吸入口と吐出口が配置されたポンプケースと、ポンプ部を駆動するモータ部と、を有したポンプにおいて、
前記羽根車に前記ポンプケース側へ突出する円筒状の吸入口マウス部を設けると共に、この吸入口マウス部を遊嵌状態で嵌入させる環状凹部を前記ポンプケースのケーシング吸入口部付近に設け、前記ケーシング吸入口部の先端部を、前記羽根車への冷媒の吸込を阻害させない高さまで突出させ、そのケーシング吸入口部の先端部に内側から外側に斜面又は曲面を設け、
前記羽根車の吸入口マウス部の外周壁面にリブ形状部を設け、このリブ形状部を遊嵌状態で嵌入させるくぼみ形状部を前記環状凹部の内周壁面に設けた
ことを特徴とするポンプ。 In a pump having a pump unit incorporating an impeller for sucking and discharging liquid, a pump case in which the pump unit is housed and a liquid suction port and a discharge port are arranged, and a motor unit for driving the pump unit ,
The impeller is provided with a cylindrical suction mouth mouth portion projecting toward the pump case, and an annular recess for fitting the suction mouth mouth portion in a loosely fitted state is provided near the casing suction mouth portion of the pump case, The tip of the casing suction port is projected to a height that does not hinder the suction of the refrigerant into the impeller, and a slope or curved surface is provided from the inside to the outside at the tip of the casing suction port,
A pump characterized in that a rib-shaped portion is provided on an outer peripheral wall surface of a suction mouth mouth portion of the impeller, and a hollow-shaped portion for inserting the rib-shaped portion in a loosely fitted state is provided on an inner peripheral wall surface of the annular recess. 液体を吸排する羽根車を内蔵したポンプ部と、ポンプ部が収納され液体の吸入口と吐出口が配置されたポンプケースと、ポンプ部を駆動するモータ部と、を有したポンプにおいて、
前記羽根車に前記ポンプケース側へ突出する円筒状の吸入口マウス部を設けると共に、この吸入口マウス部を遊嵌状態で嵌入させる環状凹部を前記ポンプケースのケーシング吸入口部付近に設け、前記ケーシング吸入口部の先端部を、前記羽根車への冷媒の吸込を阻害させない高さまで突出させ、そのケーシング吸入口部の先端部に内側から外側に斜面又は曲面を設け、
前記羽根車の吸入口マウス部の外周壁面にＶ字形溝を設けた
ことを特徴とするポンプ。 In a pump having a pump unit incorporating an impeller for sucking and discharging liquid, a pump case in which the pump unit is housed and a liquid suction port and a discharge port are arranged, and a motor unit for driving the pump unit ,
The impeller is provided with a cylindrical suction mouth mouth portion projecting toward the pump case, and an annular recess for fitting the suction mouth mouth portion in a loosely fitted state is provided near the casing suction mouth portion of the pump case, The tip of the casing suction port is projected to a height that does not hinder the suction of the refrigerant into the impeller, and a slope or curved surface is provided from the inside to the outside at the tip of the casing suction port,
A pump characterized in that a V-shaped groove is provided on the outer peripheral wall surface of the inlet mouth portion of the impeller. 液体を吸排する羽根車を内蔵したポンプ部と、ポンプ部が収納され液体の吸入口と吐出口が配置されたポンプケースと、ポンプ部を駆動するモータ部と、を有したポンプにおいて、
前記羽根車に前記ポンプケース側へ突出する円筒状の吸入口マウス部を設けると共に、この吸入口マウス部を遊嵌状態で嵌入させる環状凹部を前記ポンプケースのケーシング吸入口部付近に設け、前記ケーシング吸入口部の先端部を、前記羽根車への冷媒の吸込を阻害させない高さまで突出させ、そのケーシング吸入口部の先端部に内側から外側に斜面又は曲面を設け、
前記羽根車の吸入口マウス部をマグネットとし、前記マグネットに磁性流体を磁力により付着させ、該吸入口マウス部とこの吸入口マウス部を遊嵌状態で嵌入させる環状凹部との空間を前記磁性流体で封入した
ことを特徴とするポンプ。 In a pump having a pump unit incorporating an impeller for sucking and discharging liquid, a pump case in which the pump unit is housed and a liquid suction port and a discharge port are arranged, and a motor unit for driving the pump unit ,
The impeller is provided with a cylindrical suction mouth mouth portion projecting toward the pump case, and an annular recess for fitting the suction mouth mouth portion in a loosely fitted state is provided near the casing suction mouth portion of the pump case, The tip of the casing suction port is projected to a height that does not hinder the suction of the refrigerant into the impeller, and a slope or curved surface is provided from the inside to the outside at the tip of the casing suction port,
The suction mouth mouse portion of the impeller is a magnet, and a magnetic fluid is attached to the magnet by a magnetic force, and the space between the suction mouth mouth portion and the annular recess in which the suction mouth mouth portion is fitted in a loosely fitted state is the magnetic fluid. A pump characterized by being enclosed in
JP2006314177A 2006-11-21 2006-11-21 pump Active JP4274230B2 (en)

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CNU2007201932780U CN201173214Y (en) 2006-11-21 2007-11-20 Pump
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Families Citing this family (11)

* Cited by examiner, † Cited by third party
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WO2010124703A1 (en) * 2009-04-30 2010-11-04 Braeuer Hans Device for filtering fluids
US8979504B2 (en) * 2009-08-19 2015-03-17 Moog Inc. Magnetic drive pump assembly with integrated motor
JP2011132916A (en) * 2009-12-25 2011-07-07 Kps Kogyo Kk Canned pump
JP5747632B2 (en) * 2011-04-26 2015-07-15 日本電産株式会社 Centrifugal fan
DE102011086128A1 (en) * 2011-11-10 2013-05-16 Continental Automotive Gmbh Centrifugal pump for conveying liquids in a motor vehicle
DE102012216196A1 (en) * 2012-09-12 2014-03-13 E.G.O. Elektro-Gerätebau GmbH pump
CN113586512B (en) * 2015-09-30 2023-12-26 浙江三花汽车零部件有限公司 Rotor assembly and electrically driven pump
ES2828655T3 (en) * 2016-08-15 2021-05-27 Sulzer Management Ag Inlet device for a vertical pump and an arrangement comprising such an inlet device
GB2568715B (en) 2017-11-24 2020-02-26 Jaguar Land Rover Ltd Pump assembly with tortuous flow path
DE102019115774A1 (en) * 2019-06-11 2020-12-17 HELLA GmbH & Co. KGaA Pump, in particular pump for a fluid circuit in a vehicle, with a rim of an impeller, immersed in a housing
DE102019122042A1 (en) * 2019-08-16 2021-02-18 HELLA GmbH & Co. KGaA Pumping device

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US2444100A (en) * 1944-02-28 1948-06-29 Marison Company Pump
US4269564A (en) * 1978-10-02 1981-05-26 Bank Of America N.T. & S.A. Flow control device
IT1234116B (en) * 1989-06-07 1992-04-29 Novax S R L SELF-PRIMING CENTRIFUGAL PUMP.

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