EP1571343A1 - Automotive motor-compressor assembly - Google Patents

Automotive motor-compressor assembly Download PDF

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Publication number
EP1571343A1
EP1571343A1 EP04425144A EP04425144A EP1571343A1 EP 1571343 A1 EP1571343 A1 EP 1571343A1 EP 04425144 A EP04425144 A EP 04425144A EP 04425144 A EP04425144 A EP 04425144A EP 1571343 A1 EP1571343 A1 EP 1571343A1
Authority
EP
European Patent Office
Prior art keywords
housing
motor
compressor
connecting member
compressor assembly
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
EP04425144A
Other languages
German (de)
French (fr)
Other versions
EP1571343B1 (en
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/en
Priority to DE602004000976T priority patent/DE602004000976T2/en
Priority to AT04425144T priority patent/ATE327438T1/en
Priority to ES04425144T priority patent/ES2264107T3/en
Priority to US11/069,057 priority patent/US20050196306A1/en
Priority to JP2005063014A priority patent/JP2005248963A/en
Publication of EP1571343A1 publication Critical patent/EP1571343A1/en
Application granted granted Critical
Publication of EP1571343B1 publication Critical patent/EP1571343B1/en
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.
  • an automotive motor-compressor assembly comprising:
  • 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 without, however, departing from the scope of the accompanying Claims.

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)
  • Compressor (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Fuel Cell (AREA)

Abstract

There is described an automotive motor-compressor assembly (1) having an electric motor (2); a compressor (3) through which a work fluid flows, and having a housing (5) and an impeller (6); and connecting means (4) for releasably fixing the compressor (3) to the motor (2), and having a first connecting member (10) defining a locating surface (10a) for a connecting portion (5a) of the housing (5), and a second connecting member (11) defining at least one guide surface (16) for guiding the work fluid inside the housing (5).

Description

  • The present invention relates to an automotive motor-compressor assembly, in particular for supplying compressed air to fuel-cell systems.
  • Automotive motor-compressor assemblies are known 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.
  • More specifically, 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.
  • In a normal operating cycle, air flows from the intake to the supply manifold along a path defined by the inner contour of the compressor housing and by the outer contour of the impeller rotated by the electric motor shaft.
  • 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.
  • When frequent changes are made to the size of the turboblowers fitted to the same type of electric motor, either for test reasons or to permit a certain amount of flexibility in the equipment of different types of vehicles, 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.
  • It is an object of the present invention to provide an automotive motor-compressor assembly designed to eliminate the aforementioned drawback typically associated with known motor-compressor assemblies.
  • According to the present invention, there is provided an automotive motor-compressor assembly comprising:
    • an electric motor;
    • a compressor through which a work fluid flows, and having a housing and an impeller; and
    • connecting means for releasably fixing said compressor to said motor, and comprising at least a first connecting member defining a locating surface for a connecting portion of said housing;
       characterized in that said connecting means comprise a second connecting member defining at least one guide surface for guiding the work fluid inside the housing.
  • For a clearer understanding of the present invention, a preferred non-limiting embodiment of a motor-compressor assembly will be described by way of example with reference to the accompanying drawing showing a partly sectioned side view of the assembly.
  • 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.
  • 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.
  • More specifically, 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.
  • More specifically, 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.
  • At assembly, 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.
  • More specifically, 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.
  • As shown clearly in the attached drawing, 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.
  • The advantages of motor-compressor assembly 1 according to the present invention will be clear from the foregoing description.
  • In particular, by simply modifying plate 11, 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.
  • Moreover, 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.
  • Clearly, changes may be made to motor-compressor assembly 1 as described and illustrated herein without, however, departing from the scope of the accompanying Claims.

Claims (5)

  1. An automotive motor-compressor assembly (1) comprising:
    an electric motor (2);
    at least one compressor (3) through which a work fluid flows, and having a housing (5) and an impeller (6); and
    connecting means (4) for releasably fixing said compressor (3) to said motor (2), and comprising at least a first connecting member (10) defining a locating surface (10a) for a connecting portion (5a) of said housing (5);
       characterized in that said connecting means (4) comprise a second connecting member (11) defining at least one guide surface (16) for guiding the work fluid inside the housing (5).
  2. A motor-compressor assembly as claimed in Claim 1, characterized in that said second connecting member (11) is sandwiched axially between said first connecting member (10) and said housing (5).
  3. A motor-compressor assembly as claimed in Claim 2, characterized by comprising releasable first fastening means (21) for fastening said first connecting member (10) to said motor (2); said second connecting member (11) defining at least one seat (18) for a respective projecting portion of said releasable first fastening means (21).
  4. A motor-compressor assembly as claimed in any one of the foregoing Claims, characterized in that said connecting portion (5a) of said housing (5) is fitted in rotary manner to said locating surface (10a) of said first connecting member (10); second fastening means (22) being provided to lock said housing (5) to said first connecting member (10) in the desired angular position.
  5. A motor-compressor assembly as claimed in any one of the foregoing Claims, characterized in that said second connecting member (11) has blades (25).
EP04425144A 2004-03-05 2004-03-05 Automotive motor-compressor assembly Expired - Lifetime EP1571343B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP04425144A EP1571343B1 (en) 2004-03-05 2004-03-05 Automotive motor-compressor assembly
DE602004000976T DE602004000976T2 (en) 2004-03-05 2004-03-05 Motor compressor unit for motor vehicles
AT04425144T ATE327438T1 (en) 2004-03-05 2004-03-05 ENGINE COMPRESSOR UNIT FOR MOTOR VEHICLES
ES04425144T ES2264107T3 (en) 2004-03-05 2004-03-05 ENGINE-COMPRESSOR ASSEMBLY FOR MOTOR VEHICLES.
US11/069,057 US20050196306A1 (en) 2004-03-05 2005-03-02 Automotive motor-compressor assembly
JP2005063014A JP2005248963A (en) 2004-03-05 2005-03-07 Automotive motor-compressor assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04425144A EP1571343B1 (en) 2004-03-05 2004-03-05 Automotive motor-compressor assembly

Publications (2)

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

Family

ID=34746229

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04425144A Expired - Lifetime EP1571343B1 (en) 2004-03-05 2004-03-05 Automotive motor-compressor assembly

Country Status (6)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3059055A1 (en) * 2016-11-18 2018-05-25 Valeo Systemes De Controle Moteur ELECTRIC COMPRESSOR WITH SEAL FOR VOLUTE
GB2583580A (en) * 2019-04-01 2020-11-04 Efficient Energy Gmbh Easily dismountable heat pump and method of manufacturing a heat pump

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4538504B2 (en) * 2008-01-22 2010-09-08 シャープ株式会社 Cooker
JP5516976B2 (en) * 2010-07-14 2014-06-11 アイシン精機株式会社 Electric pump
DE102011109535B4 (en) * 2011-08-05 2013-08-08 Sew-Eurodrive Gmbh & Co. Kg Fan arrangement and engine
US9360015B2 (en) 2012-07-16 2016-06-07 Magna Powertrain Of America, Inc. Submerged rotor electric water pump with structural wetsleeve
JP6111915B2 (en) * 2013-07-18 2017-04-12 ダイキン工業株式会社 Turbo compressor and turbo refrigerator
DE102013109222A1 (en) * 2013-08-26 2015-02-26 Abb Turbo Systems Ag Device for a turbocharger
JP6528112B2 (en) * 2014-09-26 2019-06-12 パナソニックＩｐマネジメント株式会社 Centrifugal blower
EP3488672B1 (en) * 2016-07-20 2021-10-20 Stackpole International Engineered Products, Ltd. Pump assembly having integrated controller and motor with internal active cooling
DE102022213437A1 (en) 2022-12-12 2024-06-13 Robert Bosch Gesellschaft mit beschränkter Haftung Coupling part for blower of a fuel cell device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4767285A (en) * 1986-04-14 1988-08-30 Hitachi, Ltd. Electric blower
EP0552978A2 (en) * 1992-01-24 1993-07-28 Electrolux Corporation Air guide assembly for the electric motor of a vacuum cleaner
US5638796A (en) * 1994-06-03 1997-06-17 Adams, Iii; Herbert L. Electric supercharger
WO1998038899A1 (en) * 1996-02-16 1998-09-11 Vorwerk & Co. Interholding Gmbh Electric motor with impeller
US6375438B1 (en) * 1999-03-15 2002-04-23 Samjin Co., Ltd. Two-stage centrifugal compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4767285A (en) * 1986-04-14 1988-08-30 Hitachi, Ltd. Electric blower
EP0552978A2 (en) * 1992-01-24 1993-07-28 Electrolux Corporation Air guide assembly for the electric motor of a vacuum cleaner
US5638796A (en) * 1994-06-03 1997-06-17 Adams, Iii; Herbert L. Electric supercharger
WO1998038899A1 (en) * 1996-02-16 1998-09-11 Vorwerk & Co. Interholding Gmbh Electric motor with impeller
US6375438B1 (en) * 1999-03-15 2002-04-23 Samjin Co., Ltd. Two-stage centrifugal compressor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3059055A1 (en) * 2016-11-18 2018-05-25 Valeo Systemes De Controle Moteur ELECTRIC COMPRESSOR WITH SEAL FOR VOLUTE
GB2583580A (en) * 2019-04-01 2020-11-04 Efficient Energy Gmbh Easily dismountable heat pump and method of manufacturing a heat pump
GB2583580B (en) * 2019-04-01 2021-06-09 Efficient Energy Gmbh Easily dismountable heat pump and method of manufacturing a heat pump
US11512878B2 (en) 2019-04-01 2022-11-29 Efficient Energy Gmbh Easily dismountable heat pump and method of manufacturing a heat pump

Also Published As

Publication number Publication date
JP2005248963A (en) 2005-09-15
ES2264107T3 (en) 2006-12-16
EP1571343B1 (en) 2006-05-24
US20050196306A1 (en) 2005-09-08
DE602004000976T2 (en) 2007-05-03
DE602004000976D1 (en) 2006-06-29
ATE327438T1 (en) 2006-06-15

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