EP0797004A1 - Pompe à air entraîné par un moteur électrique - Google Patents

Pompe à air entraîné par un moteur électrique Download PDF

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Publication number
EP0797004A1
EP0797004A1 EP96118675A EP96118675A EP0797004A1 EP 0797004 A1 EP0797004 A1 EP 0797004A1 EP 96118675 A EP96118675 A EP 96118675A EP 96118675 A EP96118675 A EP 96118675A EP 0797004 A1 EP0797004 A1 EP 0797004A1
Authority
EP
European Patent Office
Prior art keywords
air pump
pump
shaft
electric motor
impellers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96118675A
Other languages
German (de)
English (en)
Other versions
EP0797004B1 (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, for example for motor vehicles, in which so-called secondary air is to be conveyed into the exhaust pipe system in order to improve the exhaust gas values.
  • the object of the invention is to create an air pump with reduced running noise, with a simplified pump structure also being achieved.
  • FIG. 1 shows the air pump according to the invention, consisting of a housing 1 made of plastic, which on the one hand accommodates a pump unit 2 and on the other hand an electric motor 4 in an electric motor chamber 3.
  • the housing 1 is closed on the pump side by a cover 5 which has an intake port 6 having.
  • the pump unit 2 has one or more pump impellers 7, 8 molded from plastic, as a result of which a streamlined shape and a lighter dish than metal can be achieved.
  • the pump impellers 7, 8 are pressed with impeller hubs 9, 10 onto an electric motor shaft 11, the impeller hubs 9, 10 bearing against a shaft collar 12 in the pressing-on direction and secured by an end ring 13 made of metal and pressed onto the shaft 11. So that the relatively smooth plastic does not slide on the shaft 11, it is provided that contacting axial surfaces 14, 15 and 16 of the impellers 7, 8 and the end ring 13 have interlocking teeth 17.
  • the shaft collar 12 is formed by a metal stop ring 18 pressed onto the shaft 11.
  • the measure can be taken that the contacting axial surfaces 15, 19 of the Impeller 8 and the stop ring 18 have an interlocking toothing 20, as shown in Fig. 2, whereby the impellers 7, 8 can be made uniform.
  • the teeth 17 shown in the drawing are each provided by a hub extension 21, interrupted by a hub bore 22 and a hub groove 23, ie one end wall 15 of the pump impeller hub 9 then has the hub extension 21 and the other end wall 16 has 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 can thus be secured against rotation.
  • the air pump according to the invention With the air pump according to the invention, low-noise operation has become possible since lighter pump impellers can now be used.
  • the invention provides a very simple air pump that is inexpensive to manufacture and will have a long service life.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
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 true EP0797004A1 (fr) 1997-09-24
EP0797004B1 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107002698A (zh) * 2014-09-24 2017-08-01 施乐百欧洲公司 风扇叶轮

Families Citing this family (13)

* 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
US10137264B2 (en) 2011-07-13 2018-11-27 Fisher & Paykel Healthcare Limited Respiratory assistance apparatus
WO2013009193A1 (fr) 2011-07-13 2013-01-17 Fisher & Paykel Healthcare Limited Ensemble rotor et moteur
AU2013101734A4 (en) 2012-12-18 2015-09-24 Fisher & Paykel Healthcare Limited Impeller and motor assembly
EP3615820A4 (fr) 2017-04-23 2021-01-06 Fisher & Paykel Healthcare Limited Appareil d'assistance respiratoire

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190928866A (en) * 1909-12-10 1910-11-03 Edmund Allday Improvements in Multiple Centrifugal Fans.
US2857849A (en) 1953-11-13 1958-10-28 Joseph R Smylie Motor driven pumping units
US3084852A (en) * 1961-03-29 1963-04-09 Gen Electric Fan blade hub connector
EP0385298A2 (fr) 1989-03-01 1990-09-05 Hitachi, Ltd. Ventilateur électrique avec conduit de refoulement d'air
DE4107149A1 (de) 1990-03-09 1991-09-12 Gold Star Electronics Blockierverfahren beim implantieren von hochenergetischen ionen unter verwendung eines nitridfilms
DE4107049A1 (de) * 1991-03-06 1992-09-10 Pierburg Gmbh Elektrisch angetriebene luftpumpe
EP0603665A1 (fr) * 1992-12-22 1994-06-29 Siemens Aktiengesellschaft Unité ventilateur composé d'un moteur et d'un ventilateur
DE4409629A1 (de) * 1993-03-25 1994-09-29 Ozen Sa Pumpenrotor und Verfahren zu dessen Herstellung

Family Cites Families (5)

* 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.
US1251836A (en) * 1914-05-02 1918-01-01 Albert Stufflebeam Shaft-coupling.
US2990895A (en) * 1958-10-20 1961-07-04 Madden T Works Turbodrill
SE464318B (sv) * 1990-02-28 1991-04-08 Flygt Ab Axelkonstruktion foer en med pumphjulet roterande omroerare
US5269572A (en) * 1992-08-28 1993-12-14 Gold Star Manufacturing, Inc. Apparatus and method for coupling elongated members

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190928866A (en) * 1909-12-10 1910-11-03 Edmund Allday Improvements in Multiple Centrifugal Fans.
US2857849A (en) 1953-11-13 1958-10-28 Joseph R Smylie Motor driven pumping units
US3084852A (en) * 1961-03-29 1963-04-09 Gen Electric Fan blade hub connector
EP0385298A2 (fr) 1989-03-01 1990-09-05 Hitachi, Ltd. Ventilateur électrique avec conduit de refoulement d'air
DE4107149A1 (de) 1990-03-09 1991-09-12 Gold Star Electronics Blockierverfahren beim implantieren von hochenergetischen ionen unter verwendung eines nitridfilms
DE4107049A1 (de) * 1991-03-06 1992-09-10 Pierburg Gmbh Elektrisch angetriebene luftpumpe
EP0603665A1 (fr) * 1992-12-22 1994-06-29 Siemens Aktiengesellschaft Unité ventilateur composé d'un moteur et d'un ventilateur
DE4409629A1 (de) * 1993-03-25 1994-09-29 Ozen Sa Pumpenrotor und Verfahren zu dessen Herstellung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107002698A (zh) * 2014-09-24 2017-08-01 施乐百欧洲公司 风扇叶轮

Also Published As

Publication number Publication date
ES2177709T3 (es) 2002-12-16
US5797727A (en) 1998-08-25
DE59609589D1 (de) 2002-10-02
EP0797004B1 (fr) 2002-08-28
DE19611512A1 (de) 1997-09-25

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