EP1148248B1 - Carter de pompe - Google Patents

Carter de pompe Download PDF

Info

Publication number
EP1148248B1
EP1148248B1 EP01109509A EP01109509A EP1148248B1 EP 1148248 B1 EP1148248 B1 EP 1148248B1 EP 01109509 A EP01109509 A EP 01109509A EP 01109509 A EP01109509 A EP 01109509A EP 1148248 B1 EP1148248 B1 EP 1148248B1
Authority
EP
European Patent Office
Prior art keywords
pump
pump housing
housing part
bearing
shaped
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
EP01109509A
Other languages
German (de)
English (en)
Other versions
EP1148248A2 (fr
EP1148248A3 (fr
Inventor
Ulrich Kühn
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.)
Appliances Components Cos SpA
Original Assignee
APPLIANCES COMPONENTS COMPANIE
Appliances Components Cos SpA
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 APPLIANCES COMPONENTS COMPANIE, Appliances Components Cos SpA filed Critical APPLIANCES COMPONENTS COMPANIE
Publication of EP1148248A2 publication Critical patent/EP1148248A2/fr
Publication of EP1148248A3 publication Critical patent/EP1148248A3/fr
Application granted granted Critical
Publication of EP1148248B1 publication Critical patent/EP1148248B1/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
    • 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
    • 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
    • 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

Definitions

  • the invention relates to a pump, in particular a circulating pump for household appliances such as dishwashers or similar machines specified in the preamble of claim 1.
  • a pump in particular a circulating pump for household appliances such as dishwashers or similar machines specified in the preamble of claim 1.
  • the pump housing is attached to the motor housing.
  • This pump housing is cup-shaped, it is placed directly on the motor housing.
  • a pump housing lower part which seals the pump housing to the drive motor in a fluid-tight manner is not provided.
  • a pump housing lower part is formed which carries seals.
  • the seal carrier should be suitable for this document to the fact that the housing is supported on this. This has the consequence that the seal carrier has a plastic fixed configuration so that it can support forces.
  • the present invention has for its object to reduce the manufacturing and assembly costs for a pump, in particular for a circulating pump in household appliances with high custom adaptability. Also, the life of the pump through a better cooling of the drive motor can be increased. This object is achieved by the features characterized in claim 1.
  • the pump housing base does not have to be rigidly ribbed, it can be manufactured and assembled more cost-effectively.
  • the pump housing lower part can be supported due to its both on the outer edge and centrally on the pump-side end shield of the motor housing.
  • the elastic design of the pump housing lower part is further facilitated by the fact that the sealing ring, which is arranged sealingly between the pump housing upper part and the pump housing lower part, is acted upon in the radial direction.
  • both the assembly of the pump is simplified and achieved a relief of the locking means.
  • the latching hook and locking lugs can be made weaker. Also, a stiffening of the pump housing shell is not required.
  • the further embodiment of the pump according to claim 7 allows a good efficiency of the pump.
  • the pump is described in particular as a circulating pump for household appliances such as dishwashers or similar machines.
  • the FIG. 1 shows a pump 1, the pump housing 3 is flanged to the motor housing 5 of a drive motor 7.
  • the pump housing 3 consists of a cup-shaped pump housing upper part 9, which carries both an axial intake 11 and a tangentially directed discharge nozzle 13, and a pump housing 3 to the drive motor 7 towards liquid-tight, designed as a seal carrier pump housing lower part 15.
  • This pump housing part 15 is on the pump side End plate 17 of the motor housing 5 attached.
  • a pump impeller 19 with different height wings 21 for changing the width of the pump impeller 19 and the pump power used wherein the distance s between the junction 23 of the intake 11 into the pump interior 25 facing wing edges 27 of the pump impeller 19 and the mouth 23 surrounding peripheral surface 29 of the pump housing 3 remains constant.
  • the pump impeller 19 consists of a closed circular disc 31, which on one end face 33, the fixed, blade-shaped wings 21 and on the other end face 35 a projecting hub 37 with a blind hole 39 for securing the pump impeller 19 on the projecting into the pump interior 25 free End 41 of the drive shaft 43 of the drive motor 7 has.
  • an insert nut 45 is pressed into the blind hole 39, which is fixedly screwed onto a thread 47 at the free end 41 of the drive shaft 43.
  • the insert nut 45 is provided with a stop flange 51 which bears firmly against the end face 53 of the hub 37.
  • the end face 53 has an annular recess 52 for the stop flange 51.
  • the pump housing lower part 15 is formed so elastically that it after flanging on the pump side on the pump-side end plate 17 is supported both in the area of the drive shaft 43 and on the outer peripheral edge 55 on the pump-side end plate 17.
  • the pump housing lower part 15 has an annular abutment surface 57 for a plurality of support domes 61 arranged at a spacing on the end face 59 in the circumferential direction, which are fastened in the region of the outer edge 63 of the pump-side end shield 17.
  • the pump housing lower part 15 is provided with a concentric with the contact surface 57 arranged bearing pin 65 whose free end 67 is mounted in a bearing recess 69 in the end face 71 of the bearing plate 17.
  • the bearing pin 65 on the pump housing lower part 15 is provided by the pump interior 25 with a cup-shaped recess 73, in the bottom surface 75, a through hole 77 for the drive shaft 43 of the drive motor 7 is arranged.
  • a sliding seal 79 which is arranged coaxially to the drive shaft 43 on the bottom surface 81 of the recess 73, and by a cylindrical seal member 83, which is between the mechanical seal 79 and the stop flange 51st of the Insert nut 45 is fixedly mounted on the drive shaft 43 prevents.
  • the pump housing upper part 9 and the pump housing lower part 15 are rendered liquid-tight, characterized in that the opening edge 85 of the pump housing upper part 9 has an annular edge recess 87 into which a cylindrical bearing flange 89 of the pump housing base 15 is inserted, wherein in the outer peripheral surface 91 of the peripheral recess 87, a sealing ring 93 supported supporting is.
  • this sealing ring 93 is supported radially on its inner peripheral side 95 on a circumferential surface 97 which is smaller in diameter and stepped in front of the cylindrical bearing flange 89 of the pump housing lower part 15. Due to this radial support, a stiffening of the pump housing lower part 15 in the longitudinal direction of the drive shaft 43 is unnecessary. This also simplifies the assembly of the pump housing 3 on the motor housing 5. Furthermore, the latching means for connecting the pump housing 3 to the motor housing 5 are relieved by the radial support of the sealing ring 93.
  • a secure locking of the pump housing 3 with the motor housing 5 is achieved in that the edges of the pump housing upper part 9 and the motor housing. 5 associated locking cam 101, 103 have, which interlock by rotation against each other in the manner of a bayonet closure.
  • an air gap 55 is formed by the supporting dome 61 between the pump-side end plate 17 and the pump housing lower part 15. This air gap 55 is further increased by an annular recess 105 between the abutment surfaces 57 and the bearing pin 67 of the pump housing lower part 15, which adjoins the cylindrical air gap 107 between the support domes 61.
  • the transition of the inner peripheral surface 109 of the cup-shaped pump housing upper part 9 to the pump outlet channel is made sharp-edged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Reciprocating Pumps (AREA)

Claims (7)

  1. Pompe, en particulier pompe de circulation pour appareils électroménagers tels que des lave-vaisselle, dont le corps de pompe est fixé au carter de moteur d'un moteur d'entraînement et comporte un espace intérieur de pompe en forme de cylindre, conçu pour une roue de pompe équipée d'ailettes, un raccord d'aspiration débouchant à l'intérieur de l'espace creux de la pompe, du côté frontal, et le corps de pompe étant constitué d'une partie supérieures de corps de pompe, en forme de pot et portant le raccord d'aspiration ainsi que le raccord de pression, et d'une partie inférieure de corps de pompe conçu comme un porte-joint, permettant d'isoler le corps de pompe par rapport au carter d'entraînement, qui par déformation élastique s'appuie sur une flasque du moteur située côté pompe,
    caractérisée en ce que
    la flasque côté pompe (17) comporte, sur sa face frontale (59) qui est tournée vers la partie inférieure de corps de pompe (15), plusieurs mandrins de support espacés dans le sens du pourtour, sur lesquels la partie inférieure de corps de pompe (15) s'appuie de telle façon qu'un espace intermédiaire (55) est formé entre la flasque (17) côté pompe et la partie inférieure de corps de pompe (15), pour l'aération côté pompe du moteur d'entraînement (7).
  2. Pompe selon la revendication 1, caractérisée en ce que la partie inférieure de corps de pompe (15) est conçue de manière élastique et comporte une surface d'appui annulaire (57) pour les mandrins de support (61) ainsi qu'un tourillon (65) disposé concentriquement par rapport à la surface d'appui (57), dont l'extrémité libre (67) est logée dans un évidement de tourillon (69) situé dans la surface frontale (71) de la flasque (17).
  3. Pompe selon la revendication 2, caractérisée en ce que l'espace intermédiaire (55) est agrandi par un renfoncement annulaire (105) situé entre les surfaces de butée (57) et le tourillon (67) de la partie inférieure de corps de pompe (15), qui repose sur l'entrefer (107) en forme de cylindre, entre les mandrins de support (61).
  4. Pompe selon la revendication 3, caractérisée en ce que le tourillon (65) comporte un renfoncement en forme de pot (73) à partir de l'espace intérieur de la pompe (25), dans la surface de fond (75) de laquelle est disposée un orifice de passage (77) destiné à l'arbre d'entraînement (43) du moteur d'entraînement (7).
  5. Pompe selon l'une des revendications 1 à 4, caractérisée en ce que le bord d'ouverture (85) de la partie supérieure de corps de pompe (9) comporte un renfoncement de bord annulaire (87), dans lequel peut être introduite une bride de palier (89) de façon étanche, et en ce qu'une bague d'étanchéité (93) est montée en appui dans la surface circonférentielle extérieure (91) du renfoncement de bord (87), qui d'autre part s'appuie radialement par sa surface circonférentielle intérieure (95) sur une surface d'enveloppe (97) réduite et étagée, disposée devant la bride de palier cylindrique (89) de la partie inférieure de corps de pompe (15).
  6. Pompe selon la revendication 5, caractérisée en ce que les bords de la partie supérieure de corps de pompe (9) et le carter de moteur (85) possèdent cames de fermeture (101, 103) attribuées les unes aux autres, qui s'engagent les unes dans les autres, par rotation contraire, à la façon d'une fermeture à baïonnette.
  7. Pompe selon l'une des revendications précédentes, caractérisée en ce que la transition entre la surface circonférentielle intérieure (109) de la partie supérieure de corps de pompe (9) en forme de pot et le canal d'évacuation (13) de la pompe présente des arêtes vives.
EP01109509A 2000-04-20 2001-04-17 Carter de pompe Expired - Lifetime EP1148248B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10019819 2000-04-20
DE10019819A DE10019819A1 (de) 2000-04-20 2000-04-20 Pumpe, insbesondere Umwälzpumpe für Haushaltsmaschinen wie Geschirrspülmaschinen

Publications (3)

Publication Number Publication Date
EP1148248A2 EP1148248A2 (fr) 2001-10-24
EP1148248A3 EP1148248A3 (fr) 2003-01-08
EP1148248B1 true EP1148248B1 (fr) 2008-12-10

Family

ID=7639603

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01109509A Expired - Lifetime EP1148248B1 (fr) 2000-04-20 2001-04-17 Carter de pompe

Country Status (4)

Country Link
EP (1) EP1148248B1 (fr)
AT (1) ATE417204T1 (fr)
DE (2) DE10019819A1 (fr)
ES (1) ES2319382T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110068847A (ko) * 2009-12-16 2011-06-22 보르그워너 인코퍼레이티드 배기 가스 터보차저

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10225258A1 (de) * 2002-06-07 2003-12-24 Fhp Motors Gmbh Elektromotor für eine Flüssigkeitspumpe
DE102005039557A1 (de) * 2005-08-22 2007-03-01 Robert Bosch Gmbh Kreiselpumpe
DE102006045797B4 (de) * 2006-09-26 2011-08-25 Hanning Elektro-Werke GmbH & Co. KG, 33813 Pumpe und Montageverfahren
DE102007045126A1 (de) * 2007-09-20 2009-04-02 Ksb Aktiengesellschaft Hauptkühlmittelpumpe
ITPN20070068A1 (it) * 2007-09-25 2009-03-26 Appliances Components Companie "gruppo integrato di motori elettrici"
ATE548541T1 (de) * 2009-12-16 2012-03-15 Borgwarner Inc Abgasturbolader
CN107630820B (zh) * 2016-07-19 2020-01-21 青岛海尔洗衣机有限公司 一种排水泵及使用该排水泵的洗衣机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6905217U (de) * 1969-02-11 1969-11-20 Licentia Gmbh Zentrifugalpumpe fuer wasch- oder geschirrspuelmaschinen
DE1959087A1 (de) * 1969-11-25 1971-05-27 Hanning Elektro Werke Gehaeuse fuer Motorpumpen
FR2247114A5 (en) * 1973-10-05 1975-05-02 Thomson Brandt Electric motor-centrifugal pump combination - has impeller with extending shaft in material resistant to line fluid corrosion
ES2019491A6 (es) * 1989-08-04 1991-06-16 Fagor S Coop Ltda Mejoras introducidas en bombas para electrodomesticos accionados por motor sincrono.
DE9210400U1 (de) * 1992-08-04 1993-09-02 Hanning Elektro-Werke GmbH & Co, 33813 Oerlinghausen Von einem Elektromotor angetriebene Umwälz- oder Entleerungspumpe für wasserführende Haushaltsmaschinen
DE19718027C5 (de) * 1997-04-29 2005-07-21 Miele & Cie. Kg Synchronpumpe, insbesondere Laugenpumpe für Waschmaschinen und Geschirrspülmaschinen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110068847A (ko) * 2009-12-16 2011-06-22 보르그워너 인코퍼레이티드 배기 가스 터보차저

Also Published As

Publication number Publication date
DE10019819A1 (de) 2001-10-31
EP1148248A2 (fr) 2001-10-24
ATE417204T1 (de) 2008-12-15
ES2319382T3 (es) 2009-05-07
EP1148248A3 (fr) 2003-01-08
DE50114556D1 (de) 2009-01-22

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