EP1474611B1 - Pompe a liquides - Google Patents

Pompe a liquides Download PDF

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Publication number
EP1474611B1
EP1474611B1 EP02781135A EP02781135A EP1474611B1 EP 1474611 B1 EP1474611 B1 EP 1474611B1 EP 02781135 A EP02781135 A EP 02781135A EP 02781135 A EP02781135 A EP 02781135A EP 1474611 B1 EP1474611 B1 EP 1474611B1
Authority
EP
European Patent Office
Prior art keywords
housing
pump
pot
housing upper
web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02781135A
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German (de)
English (en)
Other versions
EP1474611A1 (fr
Inventor
Johannes Pfetzer
Bernhard Krause
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1474611A1 publication Critical patent/EP1474611A1/fr
Application granted granted Critical
Publication of EP1474611B1 publication Critical patent/EP1474611B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • F04D29/086—Sealings especially adapted for liquid pumps
    • 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
    • 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
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/33—Retaining components in desired mutual position with a bayonet coupling

Definitions

  • the invention relates to a liquid pump, in particular a water pump, according to the preamble of claim 1.
  • a housing for motor pumps which is detachably mounted on a motor flange attached to the drive motor and carries both the axially arranged suction nozzle and the tangentially directed discharge nozzle.
  • the motor flange facing the edge of the housing and the motor flange have closure cams, which overlap after a be carried out with the housing rotational movement in the manner of a bayonet closure, wherein the housing is supported on a equipped with an elastic seal, the housing to the drive motor final seal carrier, the is arranged on one side sliding between him and the motor flange.
  • the FR 2185129 A also shows a motor pump, in which two housing half shells each having a circular groove, wherein the grooves of the two housing halves together form a pressure spiral within which rotates a pump.
  • the liquid pump according to the invention with the features of claim 1 has the advantage that only one seal is required to seal the pump housing and the motor housing and the contact pressure is generated on the seal without additional fastening means.
  • a single sealing ring takes over both functions, so the sealing of the pump housing against liquid leakage and the sealing of the motor housing against ingress of liquid from the outside.
  • the assembly and disassembly of the pump is extremely simple and can significantly reduce the costs for production and repair. Since no separate fasteners are required, the logistics of the assembly line can be simplified and assembly tools can be saved, which additionally contributes to reducing the cost price of the pump.
  • a relative rotation between the housing pot and the housing upper part brings them into engagement with each other, with increasing relative rotation uses an axial displacement movement, which causes a frictional compression of the sealing ring, and wherein the housing upper part and the lower housing part by means of a Positive locking connection positioned in the correct position and are fixed to each other non-rotatably.
  • This preferably made by a tongue and groove connection of housing lower and upper housing part serves on the one hand for mounting coding and on the other hand forms an anti-rotation during assembly, which ensures proper allocation of stator, motor housing and pump housing.
  • connection between the upper and lower housing part and the stator of the electric motor and the lower housing part of the pump housing are non-rotatably fixed to each other, wherein also here preferably a tongue and groove connection is provided, the same advantages as the tongue and groove connection between the housing upper and lower part offers.
  • the latching between the housing pot and the housing upper part of the pump housing according to Art a Boyonettver becomes formed and has on the housing upper part projecting, over the circumference of the housing upper part equidistantly arranged holding webs and formed on the pot edge of the housing pot undercuts, which can be brought together by positive rotation of the housing pot and housing shell in non-positive and positive engagement.
  • the housing upper part preferably arranged on a holding web, at least one axially projecting stop on which abuts one of the undercuts at the end of the required relative to the locking relative rotation of the housing pot and pump housing.
  • an anti-rotation device is provided between the housing pot and the housing upper part, which is effective after production of the latching with the application of an undercut to the stop of the housing upper part and connects housing pot and pump housing non-rotatable. This rotation ensures that even in rough operation, the connection between the housing upper part and the housing pot does not accidentally dissolves.
  • the pot bottom of the housing pot is provided with a circumferentially extending slot through which the winding terminals of the stator are passed.
  • This slot allows the relative rotation between the housing pot and the rotatably connected to the pump housing stator of the electric motor, which is required for locking of the housing pot and housing upper part of the pump housing.
  • the slot is from a Covered electronics housing, in which the control electronics for the electric motor is integrated.
  • Fig. 1 shown in perspective water pump as an exemplary embodiment of a general liquid pump is preferably used in automotive engineering in the cooling circuit of the internal combustion engine or in the heating circuit of the heating system. It has a two-part pump housing 11, which is composed of a housing lower part 12 and a housing upper part 13 pushed thereon.
  • the housing lower part 12 bears at the edge a radially outwardly projecting annular web 14, which abut as the system for the annular front end of the housing upper part 13 and a between the annular web 14 and the front end of the housing upper part 13, on the jacket of the housing lower part 12 pushed-sealing ring 15 is used.
  • an inlet opening 161 enclosing, axial intake manifold 16 and an outlet opening 171 enclosing, tangentially wegstrebender outlet 17 is formed on the upper housing part 13.
  • a spiral groove 181, 182 is formed in each of the two housing parts 12, 13, a spiral groove 181, 182 is formed.
  • the on top of the housing lower part 12 slid housing upper part 13 congruent superimposed two grooves 181, 182 form a opening into the intake manifold 16 pressure spiral 18 (FIG. Fig. 5 ).
  • Fig. 4 only the groove 181 of the pressure spiral 18 formed in the lower housing part 12 can be seen, which is covered by the groove 182 of the pressure spiral 18, which is formed identically in the housing upper part 13, whereby the pressure-side outlet nozzle 17 projects over the one half of the outlet opening 171 forming mouth edge of the lower groove 181 of the pressure coil 18 pushes.
  • an impeller 19 is arranged, the non-rotatably mounted on a coaxially projecting into the pump housing 11 output shaft 20 of an electric motor 21 sits.
  • the rotating impeller 19 draws on the intake manifold 16 axially water and promotes this in the pressure coil 18, from which the water flows through the outlet port 17 with delivery pressure.
  • the electric motor 21 consists in a known manner of a stator 22 (FIG. Fig. 4 ) and a rotor, not shown here, which is annularly enclosed by the stator 22.
  • the stator 22 carries a stator winding 23, which has winding connections 24, 25 (FIG. Fig. 2 ) can be energized.
  • the electric motor 21 is accommodated in a housing pot 26 which engages over the annular web 14 on the housing lower part 12, the sealing ring 15 and partially the housing upper part 13 and with the housing upper part 13 to produce an axial clamping force between the housing upper part 12 and the housing pot 26 is locked.
  • an annular support shoulder 27 (FIG. Fig.
  • the housing pot 26 has in its pot bottom 262 ( Fig. 2 ) extending in the circumferential direction slot 29 through which the winding terminals 24, 25 of the stator winding 23 are passed.
  • an electronics housing is placed on the bottom of the pot 261, which covers the slot 29 and contains the Anberichtelektronik to be connected to the Wicklungsanschlüsssen 24, 25, for example, for the speed control for the electric motor 21.
  • the latching between the housing cup 26 and housing upper part 13 is formed in the manner of a bayonet closure and has on the housing upper part 13 on the circumference of equidistantly arranged holding webs 30 and formed on the overlap edge 28 undercuts 31.
  • Holding webs 30 and undercuts 31 are brought together by relative rotation of the housing pot 26 and housing upper part 13 of the pump housing 11 in engagement, with increasing relative rotation of an axial Displacement movement of the two components used, which causes a frictional compression of the ring web 14 and the front end of the housing upper part 13 inserted sealing ring 15.
  • the twisting movement is controlled by a stop 32 (FIG. Fig. 1 and 3 ), which is formed on one of the retaining webs 30 and protrudes axially into the twist path of the undercuts 31.
  • the latching of the housing pot 26 and the housing upper part 13 of the pump housing 11 produced is ensured by an anti-rotation 33 ( Fig. 1 . 3 and 6 ).
  • the anti-rotation device 33 has a housing on the upper part 13 outwardly projecting axially elastically deformable web 34 which is disposed between two successive support webs 30 so that it when sliding the housing pot 36 on the housing upper part 13 by one of the undercuts 31 elastic is deflected.
  • the installation of the water pump is carried out as follows:
  • Fig. 4 illustrated pre-assembly, consisting of the lower housing part 12, the electric motor 21 with stator 22, rotor and output shaft 20 of the trained as an O-ring sealing ring 15 is mounted by this on the jacket of the housing base 12 until it rests against the annular web 14 of the Housing base 12 is pushed with slight elongation.
  • the stator 22 and the housing lower part 12 are secured by a groove / spring connection 35 against relative rotation to each other.
  • Groove / spring connection 35 serves as a mounting coding for the correct rotational position assignment of stator 22 and lower housing part 12th
  • the housing upper part 13 is pushed ( Fig. 3 ).
  • the housing lower part 12 and the housing upper part 13 are non-rotatably fixed to each other by a tongue and groove connection 36, which simultaneously serves as a mounting coding for the correct positioning of the housing upper part 13 and the housing lower part 12 during pushing. From the tongue and groove connection 36 is in Fig. 4 only to see the axially extending groove in the housing base 12.
  • the housing pot 26 is pushed onto the stator 22 ( Fig. 3 ), wherein the overlapping edge 28 on the pot opening 261 increasingly engages over the annular web 14, the sealing ring 15 and the housing upper part 13 and the undercuts 31 at the overlapping edge 28 push through between the holding webs 30 on the housing upper part 13.
  • the winding terminals 24, 25 of the stator winding 23 pass through the slot 29.
  • the sliding of the housing pot 26 is completed when the housing pot 27 and the housing base 12 abut against the support shoulder 27. Now, by a rotational movement of the housing pot 26, the undercuts 31 are rotated in front of the holding webs 30, wherein the rotational movement is limited by the stop 32.
  • the sealing ring 15 is axially compressed and reliably seals both the pump housing 11 against water leakage and the housing pot 26 against ingress of water. Strikes an undercut 31 in the twisting movement of the housing pot 26 to the stop 32, the rotational movement of the housing pot 26 is blocked and the elastically deflected by an undercut 31 web 34 of rotation 33 is released from the undercut 31 again, so that the web 34th spring back to its original position and by grasping behind the Undercut 31 in the circumferential direction prevents rotation of the housing pot 26 ( Fig. 1 and 6 ).
  • a bayonet connection is characterized in that the holding webs 30 and / or the undercuts 31 have an axial depth increasing in the direction of rotation in order to generate an axial clamping force and thus a contact pressure on the sealing ring 15 when the two parts to be joined together are rotated ,
  • the locking can also be carried out with retaining webs and undercuts having a constant axial width or thickness.
  • the axial assignment of the holding webs 30 on the housing upper part 13 and the undercuts 31 on the housing pot 26 must be made so that during assembly before and during rotation of the housing pot 26 and pump housing 11, a sealing ring 15 compressive force must be applied so that the undercuts 31 on the housing pot 26 can be rotated in front of the retaining webs 30 on the housing upper part 13.

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

Abstract

La présente invention concerne une pompe à liquides, notamment une pompe à eau, présentant un boîtier de pompe (11) entourant une roue de pompe, et un boîtier de moteur relié à ceux-ci, dans lequel se trouve un moteur électrique (21) doté d'un stator (22) et d'un rotor, qui entraîne la roue de pompe. Afin de garantir l'étanchéité de la pompe contre les fuites de liquide et l'étanchéité du boîtier de moteur contre la pénétration de liquide, au moyen d'un élément d'étanchéité unique, et de permettre l'assemblage de la pompe à liquides sans élément de liaison supplémentaire, le boîtier de pompe (11) présente une partie inférieure de boîtier (12) dotée d'une bride annulaire (14) s'éloignant radialement vers l'extérieur, et une partie supérieure de boîtier (13) qui est insérée sur la partie inférieure de boîtier (12). Entre l'extrémité faciale annulaire libre de la partie supérieure de boîtier (13) et la bride annulaire (14) se trouve un anneau d'étanchéité (15). Le boîtier de moteur se présente sous la forme d'un boîtier cupuliforme (26) qui recouvre avec un bord de recouvrement (28) la bride annulaire (14), l'anneau d'étanchéité (15) et partiellement la partie supérieure de boîtier (13), et s'enclenche avec la partie supérieure de boîtier (13) grâce à la production d'une force de serrage axiale.

Claims (11)

  1. Pompe à liquides, en particulier pompe à eau, comprenant un boîtier de pompe (11) recevant une roue de pompe (19), et un boîtier de moteur connecté au boîtier de pompe (11), dans lequel est reçu un moteur électrique (21) entraînant la roue de pompe (19) avec un stator (22) et un rotor, le boîtier de pompe (11) présentant une partie inférieure de boîtier (12) avec une nervure annulaire (14) saillant radialement vers l'extérieur, et une partie supérieure de boîtier (13) poussée sur la partie inférieure de boîtier (12), une bague d'étanchéité (15) étant disposée entre l'extrémité frontale libre annulaire de la partie supérieure de boîtier (13) et la nervure annulaire (14), et le boîtier de moteur étant réalisé sous forme de pot de boîtier (26), qui vient en prise par le dessus avec la nervure annulaire (14), la bague d'étanchéité (15) et en partie la partie supérieure de boîtier (13) et est encliqueté avec la partie supérieure de boîtier (13) en appliquant une force de serrage axiale, une rotation relative entre le pot de boîtier (26) et la partie supérieure de boîtier (13) amenant ces pièces en prise l'une avec l'autre, caractérisée en ce qu'un mouvement de coulissement axial s'établit avec une rotation relative croissante, lequel mouvement provoque un pressage par engagement par force de la bague d'étanchéité (15), et en ce que la partie supérieure de boîtier (13) et la partie inférieure de boîtier (12) sont positionnées en position exacte l'une par rapport à l'autre au moyen d'une connexion par engagement par correspondance géométrique (36) et sont fixées de manière solidaire en rotation l'une à l'autre.
  2. Pompe selon la revendication 1, caractérisée en ce qu'au niveau de l'ouverture de pot (161) du pot de boîtier (26) sont réalisés un épaulement annulaire de support (27) pour la nervure annulaire (14) sur la partie inférieure de boîtier (12), et un bord d'engagement par le dessus (28), saillant pardessus l'épaulement de support (27), lequel bord (28) se glisse avec sa surface interne (281) pardessus la nervure annulaire (14), la bague d'étanchéité (15) et une portion de la partie supérieure de boîtier (13).
  3. Pompe selon la revendication 1 ou 2, caractérisée en ce que le stator (22) et la partie inférieure de boîtier (12) sont positionnés en position exacte l'un par rapport à l'autre, de préférence par le biais d'une connexion par engagement par correspondance géométrique (35), et sont fixés de manière solidaire en rotation l'un à l'autre.
  4. Pompe selon l'une quelconque des revendications 1 à 3, caractérisée en ce que l'encliquetage entre le pot de boîtier (26) et la partie supérieure de boîtier (13) présente des nervures de retenue (30) disposées de manière équidistante sur la périphérie de la partie supérieure de boîtier (13) et saillant sur la partie supérieure de boîtier (13), et des contre-dépouilles (31) réalisées sur le bord d'engagement par le dessus (28), lesquelles pièces peuvent être amenées en prise les unes avec les autres par la rotation relative du pot de boîtier (26) et de la partie supérieure de boîtier (13) à la manière d'une fermeture par emboîtement à baïonnette.
  5. Pompe selon la revendication 4, caractérisée en ce qu'une butée saillant axialement (32) est disposée de préférence à l'extrémité d'une nervure de retenue (30) sur la partie supérieure de boîtier (13), sur laquelle butée bute l'une des contre-dépouilles (31) sur le bord d'engagement par le dessus (28) à la fin de la rotation relative du pot de boîtier (26) et du boîtier de pompe (11) nécessaire pour l'encliquetage.
  6. Pompe selon la revendication 4 ou 5, caractérisée en ce que l'on prévoit entre le pot de boîtier (26) et la partie supérieure de boîtier (13) une fixation contre la rotation (33), qui est active après la réalisation de l'encliquetage.
  7. Pompe selon la revendication 6, caractérisée en ce que la fixation contre la rotation (33) présente au moins une nervure déformable élastiquement axialement (34), qui fait saillie sur la partie supérieure de boîtier (13) et est disposée de telle sorte qu'elle puisse être déviée par une contre-dépouille (31) s'enfonçant entre les nervures de retenue (30) lors de l'enfoncement du pot de boîtier (26) sur la partie supérieure de boîtier (13), et qu'elle revienne élastiquement après la rotation de la contre-dépouille (31) devant la nervure de retenue associée (30) et s'applique contre la face frontale tournée dans la direction périphérique de la contre-dépouille (31).
  8. Pompe selon l'une quelconque des revendications 1 à 7, caractérisée en ce que le stator (22) présente des raccords d'enroulement (24, 25) pour le contact électrique d'un enroulement statorique (23) et le pot de boîtier (26) présente dans le fond du pot (262), un trou oblong (29) s'étendant dans la direction périphérique, à travers lequel les raccords d'enroulement (24, 25) font saillie hors du pot de boîtier (26).
  9. Pompe selon la revendication 8, caractérisée en ce que le trou oblong (29) présente une longueur mesurée dans la direction périphérique, qui est supérieure à la course de rotation du pot de boîtier (26) par rapport au boîtier de pompe (11) connecté de manière solidaire en rotation au stator (22).
  10. Pompe selon l'une quelconque des revendications 1 à 9, caractérisée en ce que le boîtier de pompe (11) présente, du côté de l'aspiration, une ouverture d'entrée (161) coaxiale à la roue de pompe (19), et du côté de la pression, une ouverture de sortie (171) tangentielle à la roue de pompe (19), dans laquelle débouche une spirale de pression (18) entourant la roue de pompe (19), et en ce que la spirale de pression (18) est formée par deux rigoles superposées (181, 182) dont une est à chaque fois formée dans la partie inférieure de boîtier (12) et dans la partie supérieure de boîtier (13) du boîtier de pompe (11).
  11. Pompe selon la revendication 10, caractérisée en ce que l'ouverture d'entrée et l'ouverture de sortie (161, 171) sont à chaque fois entourées par une de deux tubulures de raccordement (16, 17) façonnées d'une seule pièce sur la partie supérieure de boîtier (13).
EP02781135A 2002-02-05 2002-10-14 Pompe a liquides Expired - Lifetime EP1474611B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10204459 2002-02-05
DE10204459A DE10204459A1 (de) 2002-02-05 2002-02-05 Flüssigkeitspumpe
PCT/DE2002/003878 WO2003067094A1 (fr) 2002-02-05 2002-10-14 Pompe a liquides

Publications (2)

Publication Number Publication Date
EP1474611A1 EP1474611A1 (fr) 2004-11-10
EP1474611B1 true EP1474611B1 (fr) 2011-06-08

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EP02781135A Expired - Lifetime EP1474611B1 (fr) 2002-02-05 2002-10-14 Pompe a liquides

Country Status (6)

Country Link
US (1) US7137794B2 (fr)
EP (1) EP1474611B1 (fr)
JP (1) JP4317028B2 (fr)
KR (1) KR20040077930A (fr)
DE (1) DE10204459A1 (fr)
WO (1) WO2003067094A1 (fr)

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DE102007017271A1 (de) 2007-04-12 2008-10-16 BSH Bosch und Siemens Hausgeräte GmbH Pumpe mit Heizeinrichtung
US8708674B2 (en) * 2007-06-14 2014-04-29 Carefusion 212, Llc Modular CPAP compressor
DE102007045126A1 (de) * 2007-09-20 2009-04-02 Ksb Aktiengesellschaft Hauptkühlmittelpumpe
KR100819921B1 (ko) * 2007-12-14 2008-04-08 주식회사 청석 엇물리는 리브에 의하여 결합되는 캡을 구비한 모터펌프
DE102008049238A1 (de) * 2008-05-30 2009-12-03 Wabco Gmbh Vorrichtung zum Betreiben eines Hilfsaggregates eines Fahrzeuges, insbesondere Nutzfahrzeuges
CN103080557B (zh) * 2011-02-10 2015-11-25 三菱重工业株式会社 泵结构
CN102797705B (zh) * 2012-01-19 2015-04-08 浙江百乐泵业有限公司 一种水陆通用的潜水泵
JP2013249741A (ja) * 2012-05-30 2013-12-12 Toyota Industries Corp 電動圧縮機
JP5915384B2 (ja) * 2012-05-30 2016-05-11 株式会社豊田自動織機 電動圧縮機
WO2014011054A1 (fr) * 2012-07-09 2014-01-16 Jets As Couvercle d'extrémité de pompe à vis à anneau liquide
JP5686827B2 (ja) 2013-01-23 2015-03-18 株式会社鷺宮製作所 遠心ポンプ
EP3032706B1 (fr) * 2014-12-11 2020-02-19 Johnson Electric International AG Pompe et appareil de nettoyage
JP5979799B2 (ja) * 2015-01-20 2016-08-31 株式会社鷺宮製作所 遠心ポンプ
CN105570144B (zh) * 2015-12-17 2018-03-23 广东威灵电机制造有限公司 离心泵和用于离心泵的导流件
GB2553323A (en) * 2016-09-01 2018-03-07 Edwards Ltd Pump assemblies with sealing
EP3425203B1 (fr) * 2017-07-04 2022-12-28 Sulzer Management AG Carter de pompe centrifuge et pompe centrifuge
FR3078116B1 (fr) * 2018-02-22 2021-09-10 Ksb Sas Pompe a doigt
WO2023234927A1 (fr) * 2022-05-31 2023-12-07 Itt Goulds Pumps, Inc. Carter de pompe

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DE10204459A1 (de) 2003-08-07
US7137794B2 (en) 2006-11-21
JP2005517126A (ja) 2005-06-09
US20040071573A1 (en) 2004-04-15
WO2003067094A1 (fr) 2003-08-14
JP4317028B2 (ja) 2009-08-19
KR20040077930A (ko) 2004-09-07
EP1474611A1 (fr) 2004-11-10

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