EP0797004B1 - Pompe à air entraíné par un moteur électrique - Google Patents

Pompe à air entraíné par un moteur électrique Download PDF

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Publication number
EP0797004B1
EP0797004B1 EP96118675A EP96118675A EP0797004B1 EP 0797004 B1 EP0797004 B1 EP 0797004B1 EP 96118675 A EP96118675 A EP 96118675A EP 96118675 A EP96118675 A EP 96118675A EP 0797004 B1 EP0797004 B1 EP 0797004B1
Authority
EP
European Patent Office
Prior art keywords
air pump
electric motor
pump
shaft
impeller
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
EP96118675A
Other languages
German (de)
English (en)
Other versions
EP0797004A1 (fr
Inventor
Rainer Peters
Michael Bonse
Günter van de Venne
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.)
Pierburg GmbH
Original Assignee
Pierburg 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 Pierburg GmbH filed Critical Pierburg GmbH
Publication of EP0797004A1 publication Critical patent/EP0797004A1/fr
Application granted granted Critical
Publication of EP0797004B1 publication Critical patent/EP0797004B1/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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/164—Multi-stage fans, e.g. for vacuum cleaners
    • 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
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F05D2230/232—Manufacture essentially without removing material by permanently joining parts together by welding
    • F05D2230/234—Laser welding
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/50—Building or constructing in particular ways
    • F05D2230/51—Building or constructing in particular ways in a modular way, e.g. using several identical or complementary parts or features
    • 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
    • F05D2260/36—Retaining components in desired mutual position by a form fit connection, e.g. by interlocking
    • 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
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • 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
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/40—Organic materials
    • F05D2300/43—Synthetic polymers, e.g. plastics; Rubber

Definitions

  • the invention relates to an electrically driven air pump, consisting of a Housing with pump unit arranged on one side and on the other side arranged electric motor, with pump and motor side of the housing through Lids are closed and the pump unit has pump impellers, the Impeller hubs bear against a shaft collar in the direction of arrangement, whereby mutually contacting axial surfaces of the impellers an interlocking toothing have, the pump impellers are injection molded from plastic and onto the Electric motor shaft are pressed, the impeller hubs by one on the Electric motor shaft pressed, made of metal end ring are secured, the contacting axial surfaces of the impeller and the end ring have interlocking teeth.
  • Such an electrically driven air pump is known from GB -A- 28866.
  • the bottom impeller is on a positive shaft-hub connection a drive shaft arranged, the other wheels only loosely on the Drive shaft are arranged and toothed with the first impeller are positively connected, such that the first impeller, the other impellers drives.
  • This air pump shows increased uneven running and vibration.
  • DE-A1 41 07 049.6 has already proposed that the electric motor by means of two elastic motor bearings between Electric motor and housing is supported. With the in this publication The proposed pump impeller is made up of several parts composite impeller, which must be balanced.
  • a pump version is known from US Pat. No. 2,857,849, for example several pump impellers are attached to an electric motor shaft, by means of one screwed into the pump impeller hub transversely to the longitudinal axis of the pump Screw that presses against the shaft. Given that the thread is for this purpose must be sufficiently strong, it can be concluded that the impellers are made of metal consist. These are heavy and have imbalances.
  • the invention has for its object an air pump with a reduced To create running noise, which is also a simplified Pump structure should be achieved.
  • Fig. 1 shows the air pump according to the invention, consisting of a plastic manufactured housing 1, which on the one hand accommodates a pump unit 2 and on the other hand in a Electric motor chamber 3 an electric motor 4.
  • the housing 1 is on the pump side of closed a cover 5, which has an intake port 6.
  • the pump unit 2 one or more Injection molded plastic pump impellers 7, 8, making a streamlined Shaping and a lighter dish compared to metal execution are accessible.
  • the Pump impellers 7, 8 are pressed onto an electric motor shaft 11 with impeller hubs 9, 10, the impeller hubs 9, 10 in the pressing direction against a shaft collar 12 apply and by a pressed onto the shaft 11, made of metal end ring 13 are secured. So that the relatively smooth plastic does not slide on the shaft 11 provided that contacting axial surfaces 14, 15 and 16 of the impellers 7, 8 and of the end ring 13 have an interlocking toothing 17.
  • the shaft collar 12 is supported by a shaft 11 pressed, metal stop ring 18 is formed.
  • the contacting axial surfaces 15, 19 of the Impeller 8 and the stop ring 18 have interlocking teeth 20, as shown in Fig. 2, whereby the impellers 7, 8 are made uniform can.
  • the toothing 17 shown in the drawing is carried out by one Hub extension 21, interrupted by a hub bore 22 and a hub groove 23, i. H. one end wall 15 of the pump impeller hub 9 then has the hub extension 21 and other end wall 16 on the hub groove 23.
  • the stop ring 18 then has a groove 24 and the end ring has a shoulder 25 which are designed in accordance with the hub groove 23 and the hub shoulder 21.
  • the end ring 13 can be connected to the shaft 11 by laser beam welding and thus secured against rotation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Reciprocating Pumps (AREA)

Claims (5)

  1. Pompe à air à entraínement électrique, composée d'un carter avec un mécanisme de pompe disposé sur un côté et un moteur électrique disposé sur l'autre côté, les côtés pompe et moteur du carter étant fermés par des couvercles et le mécanisme de pompe présentant des roues, les moyeux de roues s'appliquant dans la direction de montage contre un épaulement d'arbre, des surfaces axiales en contact mutuel des roues présentant une denture en prise mutuelle, caractérisée en ce que les roues (7, 8) sont injectées en matière plastique et emmanchées sur l'arbre (11) du moteur électrique, les moyeux de roues (9, 10) étant bloqués par un anneau de fermeture (13) en métal, pressé sur l'arbre (11) du moteur électrique, les surfaces axiales (14, 16) en contact mutuel de la roue (7) et de l'anneau de fermeture (13) présentant une denture (17) en prise mutuelle.
  2. Pompe à air suivant la revendication 1, caractérisée en ce que l'épaulement d'arbre (12) est formé par un anneau de butée (18) en métal, pressé sur l'arbre (11).
  3. Pompe à air suivant la revendication 1, caractérisée en ce que les surfaces axiales (15 et 19) en contact mutuel de la roue (8) et de l'anneau de butée (18) présentent une denture en prise mutuelle (20).
  4. Pompe à air suivant l'une des revendications 2 et 3, caractérisée en ce que la denture (17, 20) est assurée par un appendice de moyeu (21, 25) et une rainure de moyeu (23, 24).
  5. Pompe à air suivant l'une des revendications précédentes, caractérisée en ce que l'anneau de fermeture (13) est bloqué par soudage au laser après le montage des roues (7, 8).
EP96118675A 1996-03-23 1996-11-21 Pompe à air entraíné par un moteur électrique Expired - Lifetime EP0797004B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19611512A DE19611512A1 (de) 1996-03-23 1996-03-23 Elektrisch angetriebene Luftpumpe
DE19611512 1996-03-23

Publications (2)

Publication Number Publication Date
EP0797004A1 EP0797004A1 (fr) 1997-09-24
EP0797004B1 true EP0797004B1 (fr) 2002-08-28

Family

ID=7789192

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96118675A Expired - Lifetime EP0797004B1 (fr) 1996-03-23 1996-11-21 Pompe à air entraíné par un moteur électrique

Country Status (4)

Country Link
US (1) US5797727A (fr)
EP (1) EP0797004B1 (fr)
DE (2) DE19611512A1 (fr)
ES (1) ES2177709T3 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19743069A1 (de) * 1997-09-30 1999-04-01 Pierburg Ag Elektrisch angetriebene Luftpumpe
JPH11303961A (ja) * 1998-04-17 1999-11-02 Nippon Seiko Kk トロイダル型無段変速機
DE19943816A1 (de) 1999-09-14 2001-03-15 Pierburg Ag Elektrisch angetriebene Luftpumpe
US6296459B1 (en) * 2000-02-15 2001-10-02 Intex Recreation Corp. Electric air pump having multiple impellers and method
DE20016769U1 (de) * 2000-09-28 2000-12-14 Papst-Motoren GmbH & Co. KG, 78112 St Georgen Radialgebläse, insbesondere für Beatmungsgeräte
US6890159B2 (en) * 2002-03-19 2005-05-10 Denso Corporation Air blower with fan unable to contact motor housing
US6663343B1 (en) 2002-06-27 2003-12-16 Sea Solar Power Inc Impeller mounting system and method
US8025346B2 (en) 2006-12-15 2011-09-27 Caterpillar Inc. Machine component configuration for enhanced press fit and press fit coupling method
EP2273123B9 (fr) 2009-07-08 2018-03-21 Pierburg Pump Technology GmbH Sécurisation d'une roue de pompe centrifuge
US10286167B2 (en) 2011-07-13 2019-05-14 Fisher & Paykel Healthcare Limited Impeller and motor assembly
US10137264B2 (en) 2011-07-13 2018-11-27 Fisher & Paykel Healthcare Limited Respiratory assistance apparatus
DE212013000256U1 (de) 2012-12-18 2015-07-22 Fisher & Paykel Healthcare Ltd. Impeller und Rotor Baugruppe
DE102014014287A1 (de) * 2014-09-24 2016-03-24 Ziehl-Abegg Se Lüfterrad
CN111033067B (zh) 2017-04-23 2022-01-14 费雪派克医疗保健有限公司 呼吸辅助设备

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1173289A (en) * 1916-02-29 American Manganese Steel Co Mill-pinion.
GB190928866A (en) * 1909-12-10 1910-11-03 Edmund Allday Improvements in Multiple Centrifugal Fans.
US1251836A (en) * 1914-05-02 1918-01-01 Albert Stufflebeam Shaft-coupling.
US2857849A (en) 1953-11-13 1958-10-28 Joseph R Smylie Motor driven pumping units
US2990895A (en) * 1958-10-20 1961-07-04 Madden T Works Turbodrill
US3084852A (en) * 1961-03-29 1963-04-09 Gen Electric Fan blade hub connector
JPH0765597B2 (ja) 1989-03-01 1995-07-19 株式会社日立製作所 電動送風機
SE464318B (sv) * 1990-02-28 1991-04-08 Flygt Ab Axelkonstruktion foer en med pumphjulet roterande omroerare
KR930000876B1 (ko) 1990-03-09 1993-02-08 금성일렉트론 주식회사 질화막을 이용한 고에너지 이온 주입 저지방법
DE4107049C2 (de) * 1991-03-06 1997-12-11 Pierburg Ag Elektrisch angetriebene Luftpumpe
US5269572A (en) * 1992-08-28 1993-12-14 Gold Star Manufacturing, Inc. Apparatus and method for coupling elongated members
DE59301728D1 (de) * 1992-12-22 1996-04-04 Siemens Ag Aus einem Antriebsmotor und einem Gebläse bestehendes Gebläseaggregat
FR2703111B1 (fr) * 1993-03-25 1995-06-30 Ozen Sa Rotor pour pompe comportant deux pieces assemblees par soudure, obtenues par moulage par injection de materiaux thermoplastiques, et procede de fabrication d'un tel rotor .

Also Published As

Publication number Publication date
EP0797004A1 (fr) 1997-09-24
ES2177709T3 (es) 2002-12-16
DE19611512A1 (de) 1997-09-25
DE59609589D1 (de) 2002-10-02
US5797727A (en) 1998-08-25

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