EP1571343B1 - Ensemble moteur-compresseur pour véhicules automobiles - Google Patents

Ensemble moteur-compresseur pour véhicules automobiles Download PDF

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Publication number
EP1571343B1
EP1571343B1 EP04425144A EP04425144A EP1571343B1 EP 1571343 B1 EP1571343 B1 EP 1571343B1 EP 04425144 A EP04425144 A EP 04425144A EP 04425144 A EP04425144 A EP 04425144A EP 1571343 B1 EP1571343 B1 EP 1571343B1
Authority
EP
European Patent Office
Prior art keywords
housing
connecting member
motor
compressor
electric motor
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
EP04425144A
Other languages
German (de)
English (en)
Other versions
EP1571343A1 (fr
Inventor
Paolo Maria Del Zanno
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.)
Centro Ricerche Fiat SCpA
Original Assignee
Centro Ricerche Fiat SCpA
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 Centro Ricerche Fiat SCpA filed Critical Centro Ricerche Fiat SCpA
Priority to EP04425144A priority Critical patent/EP1571343B1/fr
Priority to AT04425144T priority patent/ATE327438T1/de
Priority to DE602004000976T priority patent/DE602004000976T2/de
Priority to ES04425144T priority patent/ES2264107T3/es
Priority to US11/069,057 priority patent/US20050196306A1/en
Priority to JP2005063014A priority patent/JP2005248963A/ja
Publication of EP1571343A1 publication Critical patent/EP1571343A1/fr
Application granted granted Critical
Publication of EP1571343B1 publication Critical patent/EP1571343B1/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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/02—Drives of pumps; Varying pump drive gear ratio
    • F02B39/08—Non-mechanical drives, e.g. fluid drives having variable gear ratio
    • F02B39/10—Non-mechanical drives, e.g. fluid drives having variable gear ratio electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F04D29/444—Bladed diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/32—Engines with pumps other than of reciprocating-piston type
    • F02B33/34—Engines with pumps other than of reciprocating-piston type with rotary pumps
    • F02B33/40—Engines with pumps other than of reciprocating-piston type with rotary pumps of non-positive-displacement type
    • 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
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet

Definitions

  • the present invention relates to an automotive motor-compressor assembly, in particular for supplying compressed air to fuel-cell systems.
  • Automotive motor-compressor assemblies which substantially comprise an electric motor; and a centrifugal compressor having a housing fixed to and supported by the electric motor housing, and one or more impellers connected to an output shaft of the motor. More specifically, at one axial end, the electric motor housing has a connecting flange, an outer circumferential surface of which supports and is fitted with the compressor housing.
  • the compressor housing defines an intake at the opposite axial end to the connecting flange, and a volute supply manifold with the flange.
  • the impeller comprises a number of blades fitted to a portion of the output shaft of the electric motor projecting inside the compressor housing.
  • the outer circumferential surface of the connecting flange provides for locating the compressor housing, so the connecting flange involves a relatively high degree of dimensional precision to reduce the gap between the inner contour of the housing and the outer contour of the impeller, and so enhance the overall efficiency of the compressor.
  • the circular surface, facing the compressor housing, of the connecting flange also provides for guiding the air supply, so that each compressor size calls for a connecting flange of specific shape and size.
  • the above motor-compressor assembly configuration calls for changing the entire connecting flange, which involves complex machining work, especially in view of the close dimensional tolerances of the circumferential surface by which the compressor is located.
  • US5638796 discloses an electric supercharger comprising a centrifugal blower for compressing air mounted on one end of a shaft.
  • a first bearing is provided for supporting the blower on the aforesaid one end of the shaft in a cantilever fashion.
  • the rotor of an electric motor is mounted on the opposite end of the shaft.
  • a second bearing is provided for supporting the rotor on opposite end of the shaft in cantilever fashion.
  • a lubrificating fluid container is located between the first and the second bearings for containing a quantity of lubrificating fluid.
  • a slinger is also mounted on the shaft, which passes through the lubrificating fluid container, for slinging the lubrificating fluid against the first and second bearings.
  • US 6375438 discloses a two-stage centrifugal compressor presenting a simplified refrigerant structure and effectively cooling its electric motor in addition to bearing parts using an existing refrigeration cycle without having another external cooling unit.
  • the compressor disclosed reduces a consumption of electric power, and improves the operational performance and efficiency of a refrigeration system.
  • a plurality of internal fluid passage is regularly formed on the internal surface of the upper and lower end portions of an external housing so as to allow first and second compression parts to communicate with each other through the interior space of the external housing.
  • Upper and lower bearing housings are fixedly mounted to the upper and lower ends of the external housing, with a plurality of fluid openings being regularly formed on the bearing housings and communicating with both compression chambers of the first and second compression parts, corresponding to the internal fluid passages of the external housing.
  • the second compression part has the second compression chamber within a compression casing, receiving an inlet part of a diffuser and surrounding outer part thereof and provided with a refrigerant discharging port, and has an internal cover with a fluid passage communicating with the fluid openings of the upper and lower bearing housings.
  • US 4767285 discloses an electric blower comprising an electric motor and an impeller drivingly rotated thereby.
  • a housing and an end bracket connected thereto cooperate with each other to define an internal space within which the electric motor is disposed.
  • a tubular wall surrounding an output shaft of the motor extends from an end wall to the end bracket into a central opening in a shroud plate of the impeller.
  • a bearing is disposed between the tubular wall and the output shaft for rotatably support the output shaft.
  • a guide vane assembly is connected to the end bracket at a location radially outwardly remote from the bearing. The guide vane assembly guides the air flow from the impeller, toward openings in a peripheral wall of the end bracket.
  • Number 1 in the accompanying drawing indicates as a whole an automotive motor-compressor assembly, in particular for supplying compressed air to fuel-cell systems.
  • Assembly 1 has an axis A, and substantially comprises a known electric motor 2 illustrated only insofar as necessary for a clear understanding of the present invention; a compressor 3 - in the example shown, a centrifugal compressor; and connecting means 4 for connecting electric motor 2 and compressor 3.
  • electric motor 2 More specifically, of electric motor 2 are shown only a casing 2a, and an output shaft 7 extending partly inside casing 2a and partly outwards from one side of casing 2a.
  • Compressor 3 comprises a housing 5; and an impeller 6 having a number of blades 12 fixed releasably to the portion of output shaft 7 projecting from casing 2a of electric motor 2.
  • Housing 5 defines a through axial cavity, and comprises an axial end portion 5a fixed by connecting means 4 to casing 2a of electric motor 2; an opposite axial end portion 5b defining an intake; and an intermediate portion 5c defining a compression conduit 8 with impeller 6, and a radially outer compressed-air supply manifold 9.
  • axial end portion 5b has the smallest diameter, and is connected to end portion 5a, defining the largest diameter, by successive sections varying in diameter and including a radial first portion 5e, a volute-shaped second portion 5f, and a radial third portion 5g.
  • Supply manifold 9 is therefore defined by a radial initial portion 19 defined between radial portion 5e of intermediate portion 5c and connecting means 4 (as described in more detail later on), and by a volute-shaped final portion 20 defined entirely by portion 5f of intermediate portion 5c.
  • Connecting means 4 comprise a first plate 10 fixed coaxially to casing 2a of motor 2, on the side from which shaft 7 projects, and having an outer circumferential surface 10a for locating end portion 5a; and a second plate 11 retained coaxially with casing 2a, located on the opposite side of plate 10 to electric motor 2, and defining, with intermediate portion 5c of housing 5, initial portion 19 of supply manifold 9.
  • plate 10 is connected to casing 2a by releasable fastening means defined, in the example shown, by screws 21, the heads of which are housed inside respective dead seats 18 formed in plate 11.
  • Plate 11 therefore also provides for preventing the drag induced by screws 21 from interfering with the compressed-air flow.
  • Plate 11 is sandwiched axially between plate 10 and housing 5, and preferably comprises a number of air-guide blades 25. More specifically, housing 5 is fixed at end portion 5a to the radially outermost portion of plate 10 by means of releasable fastening means defined, in the example shown, by bolts 22, and cooperates, by means of a shoulder formed in volute-shaped portion 5f, with plate 11 to keep it in axial contact with plate 10. A sealing ring 26 is interposed between said shoulder and plate 11 to fluidtight seal initial portion 19 of supply manifold 9.
  • end portion 5a of housing 5 is fitted in rotary manner to circumferential surface 10a of plate 10, and is locked angularly to plate 10 by bolts 22.
  • the radially outermost portion of plate 10 is gripped axially, by means of bolts 22, between radial portion 5g of housing 5 and two half-ringshaped stop members 24.
  • Both plates 10, 11 have an axial hole through which to insert shaft 7 projecting from electric motor 2, and both are centred on a lateral collar 23 of electric motor 2.
  • portion 19 of supply manifold 9 is defined between radial portion 5e of housing 5 and a surface 16 of plate 11, which is opposite the surface contacting plate 10 and is provided with blades 25.
  • motor-compressor assembly 1 The advantages of motor-compressor assembly 1 according to the present invention will be clear from the foregoing description.
  • electric motor 2 can be fitted with impellers 6 and housings 5 of different shapes and sizes, without having to remake plates 10, which are dimensionally much more precise and therefore more expensive.
  • fastening housing 5 to electric motor by means of bolts 22 and stop members 24 leaves housing 5 free to rotate about axis A of electric motor 2. Once, the desired angular position is reached, bolts 22 are tightened, thus simplifying the fastening of housing 5 to electric motor 2.
  • motor-compressor assembly 1 as described and illustrated herein.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Fuel Cell (AREA)
  • Compressor (AREA)
  • Motor Or Generator Cooling System (AREA)

Claims (4)

  1. Ensemble de motocompresseur automobile (1) comprenant :
    - un moteur électrique (2) ;
    - un compresseur (3) à travers lequel s'écoule un fluide de travail, et comportant un logement (5) et un rotor (6) ; et
    - des moyens de raccordement (4) pour fixer de façon amovible ledit compresseur (3) sur ledit moteur (2), et comprenant un premier élément de raccordement (10) et un second élément de raccordement (11) ; ledit premier élément de raccordement (10) étant séparé de et fixé de façon libérable sur ledit logement (5), et définissant une surface de positionnement (10a) pour une portion de raccordement (5a) dudit logement (5), et ledit second élément de raccordement (11) étant séparé de et fixé de façon séparable sur ledit premier élément de raccordement (10) et ledit logement (5), et définissant une surface de guidage (16) pour guider le fluide de travail à l'intérieur du logement (5) ;
    caractérisé en ce que ledit second élément de raccordement (11) est intercalé entre ledit premier élément de raccordement (10) et ledit logement (5), de façon à être axialement libre par rapport audit premier élément de raccordement (10) lorsque ledit logement (5) est séparé dudit premier élément de raccordement (10).
  2. Ensemble motocompresseur selon la revendication 1, caractérisé par des premiers moyens de fixation séparables (21) pour la fixation dudit premier élément de raccordement (10) sur ledit moteur (2) ; ledit second élément de raccordement (11) définissant un siège (18) pour une première portion en saillie desdits premiers moyens de fixation séparables (21).
  3. Ensemble motocompresseur selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite portion de raccordement (5a) dudit logement (5) est logée de manière rotative sur ladite surface de positionnement (10a) dudit premier élément de raccordement (10) ; des seconds moyens de fixation (22) étant agencés pour bloquer ledit logement (5) sur ledit premier élément de raccordement (10) dans la position angulaire souhaitée.
  4. Ensemble motocompresseur selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit second élément de raccordement (11) comporte des pales (25).
EP04425144A 2004-03-05 2004-03-05 Ensemble moteur-compresseur pour véhicules automobiles Expired - Lifetime EP1571343B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP04425144A EP1571343B1 (fr) 2004-03-05 2004-03-05 Ensemble moteur-compresseur pour véhicules automobiles
AT04425144T ATE327438T1 (de) 2004-03-05 2004-03-05 Motor-verdichteraggregat für kraftfahrzeuge
DE602004000976T DE602004000976T2 (de) 2004-03-05 2004-03-05 Motor-Verdichteraggregat für Kraftfahrzeuge
ES04425144T ES2264107T3 (es) 2004-03-05 2004-03-05 Conjunto motor-compresor para vehiculos de motor.
US11/069,057 US20050196306A1 (en) 2004-03-05 2005-03-02 Automotive motor-compressor assembly
JP2005063014A JP2005248963A (ja) 2004-03-05 2005-03-07 自動車用のモータコンプレッサー組立体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04425144A EP1571343B1 (fr) 2004-03-05 2004-03-05 Ensemble moteur-compresseur pour véhicules automobiles

Publications (2)

Publication Number Publication Date
EP1571343A1 EP1571343A1 (fr) 2005-09-07
EP1571343B1 true EP1571343B1 (fr) 2006-05-24

Family

ID=34746229

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04425144A Expired - Lifetime EP1571343B1 (fr) 2004-03-05 2004-03-05 Ensemble moteur-compresseur pour véhicules automobiles

Country Status (6)

Country Link
US (1) US20050196306A1 (fr)
EP (1) EP1571343B1 (fr)
JP (1) JP2005248963A (fr)
AT (1) ATE327438T1 (fr)
DE (1) DE602004000976T2 (fr)
ES (1) ES2264107T3 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4538504B2 (ja) * 2008-01-22 2010-09-08 シャープ株式会社 加熱調理器
JP5516976B2 (ja) * 2010-07-14 2014-06-11 アイシン精機株式会社 電動ポンプ
DE102011109535B4 (de) * 2011-08-05 2013-08-08 Sew-Eurodrive Gmbh & Co. Kg Lüfteranordnung und Motor
US9360015B2 (en) 2012-07-16 2016-06-07 Magna Powertrain Of America, Inc. Submerged rotor electric water pump with structural wetsleeve
JP6111915B2 (ja) * 2013-07-18 2017-04-12 ダイキン工業株式会社 ターボ圧縮機及びターボ冷凍機
DE102013109222A1 (de) * 2013-08-26 2015-02-26 Abb Turbo Systems Ag Vorrichtung für einen Turbolader
JP6528112B2 (ja) * 2014-09-26 2019-06-12 パナソニックＩｐマネジメント株式会社 遠心送風機
WO2018015903A1 (fr) * 2016-07-20 2018-01-25 Stackpole International Engineered Products, Ltd. Ensemble de pompe avec dispositif de commande intégré et moteur avec refroidissement actif interne
FR3059055B1 (fr) * 2016-11-18 2020-10-09 Valeo Systemes De Controle Moteur Compresseur electrique avec joint pour volute
DE102019204595B4 (de) 2019-04-01 2020-10-15 Efficient Energy Gmbh Einfach demontierbare Wärmepumpe und Verfahren zur Herstellung einer Wärmepumpe
DE102022213437A1 (de) 2022-12-12 2024-06-13 Robert Bosch Gesellschaft mit beschränkter Haftung Kopplungsteil für Gebläse einer Brennstoffzellenvorrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190429B (en) * 1986-04-14 1990-10-17 Hitachi Ltd An electric blower
US5296769A (en) * 1992-01-24 1994-03-22 Electrolux Corporation Air guide assembly for an electric motor and methods of making
US5638796A (en) * 1994-06-03 1997-06-17 Adams, Iii; Herbert L. Electric supercharger
DE19605742A1 (de) * 1996-02-16 1997-08-21 Vorwerk Co Interholding Elektromotor mit einem Gebläserad
KR100288315B1 (ko) * 1999-03-15 2001-04-16 김평길 2단 원심압축기

Also Published As

Publication number Publication date
ATE327438T1 (de) 2006-06-15
ES2264107T3 (es) 2006-12-16
DE602004000976D1 (de) 2006-06-29
JP2005248963A (ja) 2005-09-15
EP1571343A1 (fr) 2005-09-07
DE602004000976T2 (de) 2007-05-03
US20050196306A1 (en) 2005-09-08

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